feature(krata): rename guest to zone

.github/workflows/check.yml

@@ -127,7 +127,7 @@ jobs:
       run: ./hack/ci/install-linux-deps.sh
     - name: cargo clippy
       run: ./hack/build/cargo.sh clippy
-  guest-init:
+  zone-initrd:
     runs-on: ubuntu-latest
     strategy:
       matrix:
@@ -136,7 +136,7 @@ jobs:
         - aarch64
     env:
       TARGET_ARCH: "${{ matrix.arch }}"
-    name: guest-init ${{ matrix.arch }}
+    name: zone initrd ${{ matrix.arch }}
     steps:
     - name: harden runner
       uses: step-security/harden-runner@17d0e2bd7d51742c71671bd19fa12bdc9d40a3d6 # v2.8.1

.github/workflows/nightly.yml

@@ -124,7 +124,7 @@ jobs:
         - kratactl
         - kratad
         - kratanet
-        - krata-guest-init
+        - krata-zone
     name: nightly oci build ${{ matrix.component }}
     permissions:
       contents: read

.github/workflows/release-assets.yml

@@ -121,7 +121,7 @@ jobs:
         - kratactl
         - kratad
         - kratanet
-        - krata-guest-init
+        - krata-zone
     name: release-assets oci ${{ matrix.component }}
     permissions:
       contents: read

Cargo.lock

@@ -1393,31 +1393,6 @@ dependencies = [
  "uuid",
 ]
 
-[[package]]
-name = "krata-guest"
-version = "0.0.12"
-dependencies = [
- "anyhow",
- "cgroups-rs",
- "env_logger",
- "futures",
- "ipnetwork",
- "krata",
- "krata-xenstore",
- "libc",
- "log",
- "nix 0.29.0",
- "oci-spec",
- "path-absolutize",
- "platform-info",
- "rtnetlink",
- "serde",
- "serde_json",
- "sys-mount",
- "sysinfo",
- "tokio",
-]
-
 [[package]]
 name = "krata-loopdev"
 version = "0.0.12"
@@ -1603,6 +1578,31 @@ dependencies = [
  "tokio",
 ]
 
+[[package]]
+name = "krata-zone"
+version = "0.0.12"
+dependencies = [
+ "anyhow",
+ "cgroups-rs",
+ "env_logger",
+ "futures",
+ "ipnetwork",
+ "krata",
+ "krata-xenstore",
+ "libc",
+ "log",
+ "nix 0.29.0",
+ "oci-spec",
+ "path-absolutize",
+ "platform-info",
+ "rtnetlink",
+ "serde",
+ "serde_json",
+ "sys-mount",
+ "sysinfo",
+ "tokio",
+]
+
 [[package]]
 name = "lazy_static"
 version = "1.4.0"

Cargo.toml

@@ -3,7 +3,7 @@ members = [
     "crates/build",
     "crates/krata",
     "crates/oci",
-    "crates/guest",
+    "crates/zone",
     "crates/runtime",
     "crates/daemon",
     "crates/network",

DEV.md

@@ -9,7 +9,7 @@ krata is composed of four major executables:
 | kratad     | host    | backend daemon   | ./hack/debug/kratad.sh   | crates/daemon     |
 | kratanet   | host    | backend daemon   | ./hack/debug/kratanet.sh | crates/network    |
 | kratactl   | host    | CLI tool         | ./hack/debug/kratactl.sh | crates/ctl        |
-| krataguest | guest   | none, guest init | N/A                      | crates/guest      |
+| kratazone  | zone    | none, zone init  | N/A                      | crates/zone       |
 
 You will find the code to each executable available in the bin/ and src/ directories inside
 it's corresponding code path from the above table.
@@ -19,7 +19,7 @@ it's corresponding code path from the above table.
 | Component     | Specification | Notes                                                                             |
 | ------------- | ------------- | --------------------------------------------------------------------------------- |
 | Architecture  | x86_64        | aarch64 support is still in development                                           |
-| Memory        | At least 6GB  | dom0 will need to be configured with lower memory limit to give krata guests room | 
+| Memory        | At least 6GB  | dom0 will need to be configured with lower memory limit to give krata zones room  | 
 | Xen           | 4.17          | Temporary due to hardcoded interface version constants                            |
 | Debian        | stable / sid  | Debian is recommended due to the ease of Xen setup                                |
 | rustup        | any           | Install Rustup from https://rustup.rs                                             |
@@ -45,10 +45,10 @@ $ rustup target add x86_64-unknown-linux-gnu
 $ rustup target add x86_64-unknown-linux-musl
 ```
 
-4. Configure `/etc/default/grub.d/xen.cfg` to give krata guests some room:
+4. Configure `/etc/default/grub.d/xen.cfg` to give krata zones some room:
 
 ```sh
-# Configure dom0_mem to be 4GB, but leave the rest of the RAM for krata guests.
+# Configure dom0_mem to be 4GB, but leave the rest of the RAM for krata zones.
 GRUB_CMDLINE_XEN_DEFAULT="dom0_mem=4G,max:4G"
 ```
 
@@ -64,36 +64,36 @@ $ git clone https://github.com/edera-dev/krata.git krata
 $ cd krata
 ```
 
-6. Fetch the guest kernel image:
+6. Fetch the zone kernel image:
 
 ```sh
 $ ./hack/kernel/fetch.sh -u
 ```
 
-7. Copy the guest kernel artifacts to `/var/lib/krata/guest/kernel` so it is automatically detected by kratad:
+7. Copy the zone kernel artifacts to `/var/lib/krata/zone/kernel` so it is automatically detected by kratad:
 
 ```sh
-$ mkdir -p /var/lib/krata/guest
+$ mkdir -p /var/lib/krata/zone
-$ cp target/kernel/kernel-x86_64 /var/lib/krata/guest/kernel
+$ cp target/kernel/kernel-x86_64 /var/lib/krata/zone/kernel
-$ cp target/kernel/addons-x86_64.squashfs /var/lib/krata/guest/addons.squashfs
+$ cp target/kernel/addons-x86_64.squashfs /var/lib/krata/zone/addons.squashfs
 ```
 
 8. Launch `./hack/debug/kratad.sh` and keep it running in the foreground.
 9. Launch `./hack/debug/kratanet.sh` and keep it running in the foreground.
-10. Run `kratactl` to launch a guest:
+10. Run `kratactl` to launch a zone:
 
 ```sh
 $ ./hack/debug/kratactl.sh launch --attach alpine:latest
 ```
 
-To detach from the guest console, use `Ctrl + ]` on your keyboard.
+To detach from the zone console, use `Ctrl + ]` on your keyboard.
 
-To list the running guests, run:
+To list the running zones, run:
 ```sh
 $ ./hack/debug/kratactl.sh list
 ```
 
-To destroy a running guest, copy it's UUID from either the launch command or the guest list and run:
+To destroy a running zone, copy it's UUID from either the launch command or the zone list and run:
 ```sh
-$ ./hack/debug/kratactl.sh destroy GUEST_UUID
+$ ./hack/debug/kratactl.sh destroy ZONE_UUID
 ```

crates/build/bin/fetch_kernel.rs

@@ -39,7 +39,7 @@ async fn main() -> Result<()> {
     );
 
     let image = ImageName::parse(&args().nth(1).unwrap())?;
-    let mut cache_dir = std::env::temp_dir().clone();
+    let mut cache_dir = env::temp_dir().clone();
     cache_dir.push(format!("krata-cache-{}", Uuid::new_v4()));
     fs::create_dir_all(&cache_dir).await?;
 

crates/ctl/src/cli/attach.rs

@@ -7,13 +7,13 @@ use tonic::transport::Channel;
 
 use crate::console::StdioConsoleStream;
 
-use super::resolve_guest;
+use super::resolve_zone;
 
 #[derive(Parser)]
-#[command(about = "Attach to the guest console")]
+#[command(about = "Attach to the zone console")]
 pub struct AttachCommand {
-    #[arg(help = "Guest to attach to, either the name or the uuid")]
+    #[arg(help = "Zone to attach to, either the name or the uuid")]
-    guest: String,
+    zone: String,
 }
 
 impl AttachCommand {
@@ -22,12 +22,12 @@ impl AttachCommand {
         mut client: ControlServiceClient<Channel>,
         events: EventStream,
     ) -> Result<()> {
-        let guest_id: String = resolve_guest(&mut client, &self.guest).await?;
+        let zone_id: String = resolve_zone(&mut client, &self.zone).await?;
-        let input = StdioConsoleStream::stdin_stream(guest_id.clone()).await;
+        let input = StdioConsoleStream::stdin_stream(zone_id.clone()).await;
-        let output = client.console_data(input).await?.into_inner();
+        let output = client.attach_zone_console(input).await?.into_inner();
         let stdout_handle =
             tokio::task::spawn(async move { StdioConsoleStream::stdout(output).await });
-        let exit_hook_task = StdioConsoleStream::guest_exit_hook(guest_id.clone(), events).await?;
+        let exit_hook_task = StdioConsoleStream::zone_exit_hook(zone_id.clone(), events).await?;
         let code = select! {
             x = stdout_handle => {
                 x??;

crates/ctl/src/cli/destroy.rs

@@ -3,10 +3,10 @@ use clap::Parser;
 use krata::{
     events::EventStream,
     v1::{
-        common::GuestStatus,
+        common::ZoneStatus,
         control::{
             control_service_client::ControlServiceClient, watch_events_reply::Event,
-            DestroyGuestRequest,
+            DestroyZoneRequest,
         },
     },
 };
@@ -14,19 +14,19 @@ use krata::{
 use log::error;
 use tonic::{transport::Channel, Request};
 
-use crate::cli::resolve_guest;
+use crate::cli::resolve_zone;
 
 #[derive(Parser)]
-#[command(about = "Destroy a guest")]
+#[command(about = "Destroy a zone")]
 pub struct DestroyCommand {
     #[arg(
         short = 'W',
         long,
-        help = "Wait for the destruction of the guest to complete"
+        help = "Wait for the destruction of the zone to complete"
     )]
     wait: bool,
-    #[arg(help = "Guest to destroy, either the name or the uuid")]
+    #[arg(help = "Zone to destroy, either the name or the uuid")]
-    guest: String,
+    zone: String,
 }
 
 impl DestroyCommand {
@@ -35,46 +35,46 @@ impl DestroyCommand {
         mut client: ControlServiceClient<Channel>,
         events: EventStream,
     ) -> Result<()> {
-        let guest_id: String = resolve_guest(&mut client, &self.guest).await?;
+        let zone_id: String = resolve_zone(&mut client, &self.zone).await?;
         let _ = client
-            .destroy_guest(Request::new(DestroyGuestRequest {
+            .destroy_zone(Request::new(DestroyZoneRequest {
-                guest_id: guest_id.clone(),
+                zone_id: zone_id.clone(),
             }))
             .await?
             .into_inner();
         if self.wait {
-            wait_guest_destroyed(&guest_id, events).await?;
+            wait_zone_destroyed(&zone_id, events).await?;
         }
         Ok(())
     }
 }
 
-async fn wait_guest_destroyed(id: &str, events: EventStream) -> Result<()> {
+async fn wait_zone_destroyed(id: &str, events: EventStream) -> Result<()> {
     let mut stream = events.subscribe();
     while let Ok(event) = stream.recv().await {
-        let Event::GuestChanged(changed) = event;
+        let Event::ZoneChanged(changed) = event;
-        let Some(guest) = changed.guest else {
+        let Some(zone) = changed.zone else {
             continue;
         };
 
-        if guest.id != id {
+        if zone.id != id {
             continue;
         }
 
-        let Some(state) = guest.state else {
+        let Some(state) = zone.state else {
             continue;
         };
 
         if let Some(ref error) = state.error_info {
-            if state.status() == GuestStatus::Failed {
+            if state.status() == ZoneStatus::Failed {
                 error!("destroy failed: {}", error.message);
                 std::process::exit(1);
             } else {
-                error!("guest error: {}", error.message);
+                error!("zone error: {}", error.message);
             }
         }
 
-        if state.status() == GuestStatus::Destroyed {
+        if state.status() == ZoneStatus::Destroyed {
             std::process::exit(0);
         }
     }

crates/ctl/src/cli/exec.rs

@@ -4,42 +4,42 @@ use anyhow::Result;
 
 use clap::Parser;
 use krata::v1::{
-    common::{GuestTaskSpec, GuestTaskSpecEnvVar},
+    common::{ZoneTaskSpec, ZoneTaskSpecEnvVar},
-    control::{control_service_client::ControlServiceClient, ExecGuestRequest},
+    control::{control_service_client::ControlServiceClient, ExecZoneRequest},
 };
 
 use tonic::{transport::Channel, Request};
 
 use crate::console::StdioConsoleStream;
 
-use super::resolve_guest;
+use super::resolve_zone;
 
 #[derive(Parser)]
-#[command(about = "Execute a command inside the guest")]
+#[command(about = "Execute a command inside the zone")]
 pub struct ExecCommand {
     #[arg[short, long, help = "Environment variables"]]
     env: Option<Vec<String>>,
     #[arg(short = 'w', long, help = "Working directory")]
     working_directory: Option<String>,
-    #[arg(help = "Guest to exec inside, either the name or the uuid")]
+    #[arg(help = "Zone to exec inside, either the name or the uuid")]
-    guest: String,
+    zone: String,
     #[arg(
         allow_hyphen_values = true,
         trailing_var_arg = true,
-        help = "Command to run inside the guest"
+        help = "Command to run inside the zone"
     )]
     command: Vec<String>,
 }
 
 impl ExecCommand {
     pub async fn run(self, mut client: ControlServiceClient<Channel>) -> Result<()> {
-        let guest_id: String = resolve_guest(&mut client, &self.guest).await?;
+        let zone_id: String = resolve_zone(&mut client, &self.zone).await?;
-        let initial = ExecGuestRequest {
+        let initial = ExecZoneRequest {
-            guest_id,
+            zone_id,
-            task: Some(GuestTaskSpec {
+            task: Some(ZoneTaskSpec {
                 environment: env_map(&self.env.unwrap_or_default())
                     .iter()
-                    .map(|(key, value)| GuestTaskSpecEnvVar {
+                    .map(|(key, value)| ZoneTaskSpecEnvVar {
                         key: key.clone(),
                         value: value.clone(),
                     })
@@ -52,7 +52,7 @@ impl ExecCommand {
 
         let stream = StdioConsoleStream::stdin_stream_exec(initial).await;
 
-        let response = client.exec_guest(Request::new(stream)).await?.into_inner();
+        let response = client.exec_zone(Request::new(stream)).await?.into_inner();
 
         let code = StdioConsoleStream::exec_output(response).await?;
         std::process::exit(code);

crates/ctl/src/cli/launch.rs

@@ -6,12 +6,12 @@ use krata::{
     events::EventStream,
     v1::{
         common::{
-            guest_image_spec::Image, GuestImageSpec, GuestOciImageSpec, GuestSpec, GuestSpecDevice,
+            zone_image_spec::Image, OciImageFormat, ZoneImageSpec, ZoneOciImageSpec, ZoneSpec,
-            GuestStatus, GuestTaskSpec, GuestTaskSpecEnvVar, OciImageFormat,
+            ZoneSpecDevice, ZoneStatus, ZoneTaskSpec, ZoneTaskSpecEnvVar,
         },
         control::{
             control_service_client::ControlServiceClient, watch_events_reply::Event,
-            CreateGuestRequest, PullImageRequest,
+            CreateZoneRequest, PullImageRequest,
         },
     },
 };
@@ -28,56 +28,51 @@ pub enum LaunchImageFormat {
 }
 
 #[derive(Parser)]
-#[command(about = "Launch a new guest")]
+#[command(about = "Launch a new zone")]
 pub struct LaunchCommand {
     #[arg(long, default_value = "squashfs", help = "Image format")]
     image_format: LaunchImageFormat,
     #[arg(long, help = "Overwrite image cache on pull")]
     pull_overwrite_cache: bool,
-    #[arg(short, long, help = "Name of the guest")]
+    #[arg(short, long, help = "Name of the zone")]
     name: Option<String>,
-    #[arg(
+    #[arg(short, long, default_value_t = 1, help = "vCPUs available to the zone")]
-        short,
-        long,
-        default_value_t = 1,
-        help = "vCPUs available to the guest"
-    )]
     cpus: u32,
     #[arg(
         short,
         long,
         default_value_t = 512,
-        help = "Memory available to the guest, in megabytes"
+        help = "Memory available to the zone, in megabytes"
     )]
     mem: u64,
-    #[arg[short = 'D', long = "device", help = "Devices to request for the guest"]]
+    #[arg[short = 'D', long = "device", help = "Devices to request for the zone"]]
     device: Vec<String>,
-    #[arg[short, long, help = "Environment variables set in the guest"]]
+    #[arg[short, long, help = "Environment variables set in the zone"]]
     env: Option<Vec<String>>,
     #[arg(
         short,
         long,
-        help = "Attach to the guest after guest starts, implies --wait"
+        help = "Attach to the zone after zone starts, implies --wait"
     )]
     attach: bool,
     #[arg(
         short = 'W',
         long,
-        help = "Wait for the guest to start, implied by --attach"
+        help = "Wait for the zone to start, implied by --attach"
     )]
     wait: bool,
-    #[arg(short = 'k', long, help = "OCI kernel image for guest to use")]
+    #[arg(short = 'k', long, help = "OCI kernel image for zone to use")]
     kernel: Option<String>,
-    #[arg(short = 'I', long, help = "OCI initrd image for guest to use")]
+    #[arg(short = 'I', long, help = "OCI initrd image for zone to use")]
     initrd: Option<String>,
     #[arg(short = 'w', long, help = "Working directory")]
     working_directory: Option<String>,
-    #[arg(help = "Container image for guest to use")]
+    #[arg(help = "Container image for zone to use")]
     oci: String,
     #[arg(
         allow_hyphen_values = true,
         trailing_var_arg = true,
-        help = "Command to run inside the guest"
+        help = "Command to run inside the zone"
     )]
     command: Vec<String>,
 }
@@ -117,18 +112,18 @@ impl LaunchCommand {
             None
         };
 
-        let request = CreateGuestRequest {
+        let request = CreateZoneRequest {
-            spec: Some(GuestSpec {
+            spec: Some(ZoneSpec {
                 name: self.name.unwrap_or_default(),
                 image: Some(image),
                 kernel,
                 initrd,
                 vcpus: self.cpus,
                 mem: self.mem,
-                task: Some(GuestTaskSpec {
+                task: Some(ZoneTaskSpec {
                     environment: env_map(&self.env.unwrap_or_default())
                         .iter()
-                        .map(|(key, value)| GuestTaskSpecEnvVar {
+                        .map(|(key, value)| ZoneTaskSpecEnvVar {
                             key: key.clone(),
                             value: value.clone(),
                         })
@@ -140,26 +135,26 @@ impl LaunchCommand {
                 devices: self
                     .device
                     .iter()
-                    .map(|name| GuestSpecDevice { name: name.clone() })
+                    .map(|name| ZoneSpecDevice { name: name.clone() })
                     .collect(),
             }),
         };
         let response = client
-            .create_guest(Request::new(request))
+            .create_zone(Request::new(request))
             .await?
             .into_inner();
-        let id = response.guest_id;
+        let id = response.zone_id;
 
         if self.wait || self.attach {
-            wait_guest_started(&id, events.clone()).await?;
+            wait_zone_started(&id, events.clone()).await?;
         }
 
         let code = if self.attach {
             let input = StdioConsoleStream::stdin_stream(id.clone()).await;
-            let output = client.console_data(input).await?.into_inner();
+            let output = client.attach_zone_console(input).await?.into_inner();
             let stdout_handle =
                 tokio::task::spawn(async move { StdioConsoleStream::stdout(output).await });
-            let exit_hook_task = StdioConsoleStream::guest_exit_hook(id.clone(), events).await?;
+            let exit_hook_task = StdioConsoleStream::zone_exit_hook(id.clone(), events).await?;
             select! {
                 x = stdout_handle => {
                     x??;
@@ -180,7 +175,7 @@ impl LaunchCommand {
         client: &mut ControlServiceClient<Channel>,
         image: &str,
         format: OciImageFormat,
-    ) -> Result<GuestImageSpec> {
+    ) -> Result<ZoneImageSpec> {
         let response = client
             .pull_image(PullImageRequest {
                 image: image.to_string(),
@@ -189,8 +184,8 @@ impl LaunchCommand {
             })
             .await?;
         let reply = pull_interactive_progress(response.into_inner()).await?;
-        Ok(GuestImageSpec {
+        Ok(ZoneImageSpec {
-            image: Some(Image::Oci(GuestOciImageSpec {
+            image: Some(Image::Oci(ZoneOciImageSpec {
                 digest: reply.digest,
                 format: reply.format,
             })),
@@ -198,38 +193,38 @@ impl LaunchCommand {
     }
 }
 
-async fn wait_guest_started(id: &str, events: EventStream) -> Result<()> {
+async fn wait_zone_started(id: &str, events: EventStream) -> Result<()> {
     let mut stream = events.subscribe();
     while let Ok(event) = stream.recv().await {
         match event {
-            Event::GuestChanged(changed) => {
+            Event::ZoneChanged(changed) => {
-                let Some(guest) = changed.guest else {
+                let Some(zone) = changed.zone else {
                     continue;
                 };
 
-                if guest.id != id {
+                if zone.id != id {
                     continue;
                 }
 
-                let Some(state) = guest.state else {
+                let Some(state) = zone.state else {
                     continue;
                 };
 
                 if let Some(ref error) = state.error_info {
-                    if state.status() == GuestStatus::Failed {
+                    if state.status() == ZoneStatus::Failed {
                         error!("launch failed: {}", error.message);
                         std::process::exit(1);
                     } else {
-                        error!("guest error: {}", error.message);
+                        error!("zone error: {}", error.message);
                     }
                 }
 
-                if state.status() == GuestStatus::Destroyed {
+                if state.status() == ZoneStatus::Destroyed {
-                    error!("guest destroyed");
+                    error!("zone destroyed");
                     std::process::exit(1);
                 }
 
-                if state.status() == GuestStatus::Started {
+                if state.status() == ZoneStatus::Started {
                     break;
                 }
             }

crates/ctl/src/cli/list.rs

@@ -4,9 +4,9 @@ use comfy_table::{presets::UTF8_FULL_CONDENSED, Cell, Color, Table};
 use krata::{
     events::EventStream,
     v1::{
-        common::{Guest, GuestStatus},
+        common::{Zone, ZoneStatus},
         control::{
-            control_service_client::ControlServiceClient, ListGuestsRequest, ResolveGuestRequest,
+            control_service_client::ControlServiceClient, ListZonesRequest, ResolveZoneRequest,
         },
     },
 };
@@ -14,7 +14,7 @@ use krata::{
 use serde_json::Value;
 use tonic::{transport::Channel, Request};
 
-use crate::format::{guest_simple_line, guest_status_text, kv2line, proto2dynamic, proto2kv};
+use crate::format::{kv2line, proto2dynamic, proto2kv, zone_simple_line, zone_status_text};
 
 #[derive(ValueEnum, Clone, Debug, PartialEq, Eq)]
 enum ListFormat {
@@ -28,12 +28,12 @@ enum ListFormat {
 }
 
 #[derive(Parser)]
-#[command(about = "List the guests on the isolation engine")]
+#[command(about = "List the zones on the isolation engine")]
 pub struct ListCommand {
     #[arg(short, long, default_value = "table", help = "Output format")]
     format: ListFormat,
-    #[arg(help = "Limit to a single guest, either the name or the uuid")]
+    #[arg(help = "Limit to a single zone, either the name or the uuid")]
-    guest: Option<String>,
+    zone: Option<String>,
 }
 
 impl ListCommand {
@@ -42,27 +42,25 @@ impl ListCommand {
         mut client: ControlServiceClient<Channel>,
         _events: EventStream,
     ) -> Result<()> {
-        let mut guests = if let Some(ref guest) = self.guest {
+        let mut zones = if let Some(ref zone) = self.zone {
             let reply = client
-                .resolve_guest(Request::new(ResolveGuestRequest {
+                .resolve_zone(Request::new(ResolveZoneRequest { name: zone.clone() }))
-                    name: guest.clone(),
-                }))
                 .await?
                 .into_inner();
-            if let Some(guest) = reply.guest {
+            if let Some(zone) = reply.zone {
-                vec![guest]
+                vec![zone]
             } else {
-                return Err(anyhow!("unable to resolve guest '{}'", guest));
+                return Err(anyhow!("unable to resolve zone '{}'", zone));
             }
         } else {
             client
-                .list_guests(Request::new(ListGuestsRequest {}))
+                .list_zones(Request::new(ListZonesRequest {}))
                 .await?
                 .into_inner()
-                .guests
+                .zones
         };
 
-        guests.sort_by(|a, b| {
+        zones.sort_by(|a, b| {
             a.spec
                 .as_ref()
                 .map(|x| x.name.as_str())
@@ -72,19 +70,19 @@ impl ListCommand {
 
         match self.format {
             ListFormat::Table => {
-                self.print_guest_table(guests)?;
+                self.print_zone_table(zones)?;
             }
 
             ListFormat::Simple => {
-                for guest in guests {
+                for zone in zones {
-                    println!("{}", guest_simple_line(&guest));
+                    println!("{}", zone_simple_line(&zone));
                 }
             }
 
             ListFormat::Json | ListFormat::JsonPretty | ListFormat::Yaml => {
                 let mut values = Vec::new();
-                for guest in guests {
+                for zone in zones {
-                    let message = proto2dynamic(guest)?;
+                    let message = proto2dynamic(zone)?;
                     values.push(serde_json::to_value(message)?);
                 }
                 let value = Value::Array(values);
@@ -99,64 +97,62 @@ impl ListCommand {
             }
 
             ListFormat::Jsonl => {
-                for guest in guests {
+                for zone in zones {
-                    let message = proto2dynamic(guest)?;
+                    let message = proto2dynamic(zone)?;
                     println!("{}", serde_json::to_string(&message)?);
                 }
             }
 
             ListFormat::KeyValue => {
-                self.print_key_value(guests)?;
+                self.print_key_value(zones)?;
             }
         }
 
         Ok(())
     }
 
-    fn print_guest_table(&self, guests: Vec<Guest>) -> Result<()> {
+    fn print_zone_table(&self, zones: Vec<Zone>) -> Result<()> {
         let mut table = Table::new();
         table.load_preset(UTF8_FULL_CONDENSED);
         table.set_content_arrangement(comfy_table::ContentArrangement::Dynamic);
         table.set_header(vec!["name", "uuid", "status", "ipv4", "ipv6"]);
-        for guest in guests {
+        for zone in zones {
-            let ipv4 = guest
+            let ipv4 = zone
                 .state
                 .as_ref()
                 .and_then(|x| x.network.as_ref())
-                .map(|x| x.guest_ipv4.as_str())
+                .map(|x| x.zone_ipv4.as_str())
                 .unwrap_or("n/a");
-            let ipv6 = guest
+            let ipv6 = zone
                 .state
                 .as_ref()
                 .and_then(|x| x.network.as_ref())
-                .map(|x| x.guest_ipv6.as_str())
+                .map(|x| x.zone_ipv6.as_str())
                 .unwrap_or("n/a");
-            let Some(spec) = guest.spec else {
+            let Some(spec) = zone.spec else {
                 continue;
             };
-            let status = guest.state.as_ref().cloned().unwrap_or_default().status();
+            let status = zone.state.as_ref().cloned().unwrap_or_default().status();
-            let status_text = guest_status_text(status);
+            let status_text = zone_status_text(status);
 
             let status_color = match status {
-                GuestStatus::Destroyed | GuestStatus::Failed => Color::Red,
+                ZoneStatus::Destroyed | ZoneStatus::Failed => Color::Red,
-                GuestStatus::Destroying | GuestStatus::Exited | GuestStatus::Starting => {
+                ZoneStatus::Destroying | ZoneStatus::Exited | ZoneStatus::Starting => Color::Yellow,
-                    Color::Yellow
+                ZoneStatus::Started => Color::Green,
-                }
-                GuestStatus::Started => Color::Green,
                 _ => Color::Reset,
             };
 
             table.add_row(vec![
                 Cell::new(spec.name),
-                Cell::new(guest.id),
+                Cell::new(zone.id),
                 Cell::new(status_text).fg(status_color),
                 Cell::new(ipv4.to_string()),
                 Cell::new(ipv6.to_string()),
             ]);
         }
         if table.is_empty() {
-            if self.guest.is_none() {
+            if self.zone.is_none() {
-                println!("no guests have been launched");
+                println!("no zones have been launched");
             }
         } else {
             println!("{}", table);
@@ -164,9 +160,9 @@ impl ListCommand {
         Ok(())
     }
 
-    fn print_key_value(&self, guests: Vec<Guest>) -> Result<()> {
+    fn print_key_value(&self, zones: Vec<Zone>) -> Result<()> {
-        for guest in guests {
+        for zone in zones {
-            let kvs = proto2kv(guest)?;
+            let kvs = proto2kv(zone)?;
             println!("{}", kv2line(kvs),);
         }
         Ok(())

crates/ctl/src/cli/logs.rs

@@ -3,7 +3,7 @@ use async_stream::stream;
 use clap::Parser;
 use krata::{
     events::EventStream,
-    v1::control::{control_service_client::ControlServiceClient, ConsoleDataRequest},
+    v1::control::{control_service_client::ControlServiceClient, ZoneConsoleRequest},
 };
 
 use tokio::select;
@@ -12,15 +12,15 @@ use tonic::transport::Channel;
 
 use crate::console::StdioConsoleStream;
 
-use super::resolve_guest;
+use super::resolve_zone;
 
 #[derive(Parser)]
-#[command(about = "View the logs of a guest")]
+#[command(about = "View the logs of a zone")]
 pub struct LogsCommand {
-    #[arg(short, long, help = "Follow output from the guest")]
+    #[arg(short, long, help = "Follow output from the zone")]
     follow: bool,
-    #[arg(help = "Guest to show logs for, either the name or the uuid")]
+    #[arg(help = "Zone to show logs for, either the name or the uuid")]
-    guest: String,
+    zone: String,
 }
 
 impl LogsCommand {
@@ -29,22 +29,22 @@ impl LogsCommand {
         mut client: ControlServiceClient<Channel>,
         events: EventStream,
     ) -> Result<()> {
-        let guest_id: String = resolve_guest(&mut client, &self.guest).await?;
+        let zone_id: String = resolve_zone(&mut client, &self.zone).await?;
-        let guest_id_stream = guest_id.clone();
+        let zone_id_stream = zone_id.clone();
         let follow = self.follow;
         let input = stream! {
-            yield ConsoleDataRequest { guest_id: guest_id_stream, data: Vec::new() };
+            yield ZoneConsoleRequest { zone_id: zone_id_stream, data: Vec::new() };
             if follow {
-                let mut pending = pending::<ConsoleDataRequest>();
+                let mut pending = pending::<ZoneConsoleRequest>();
                 while let Some(x) = pending.next().await {
                     yield x;
                 }
             }
         };
-        let output = client.console_data(input).await?.into_inner();
+        let output = client.attach_zone_console(input).await?.into_inner();
         let stdout_handle =
             tokio::task::spawn(async move { StdioConsoleStream::stdout(output).await });
-        let exit_hook_task = StdioConsoleStream::guest_exit_hook(guest_id.clone(), events).await?;
+        let exit_hook_task = StdioConsoleStream::zone_exit_hook(zone_id.clone(), events).await?;
         let code = select! {
             x = stdout_handle => {
                 x??;

crates/ctl/src/cli/metrics.rs

@@ -3,8 +3,8 @@ use clap::{Parser, ValueEnum};
 use krata::{
     events::EventStream,
     v1::{
-        common::GuestMetricNode,
+        common::ZoneMetricNode,
-        control::{control_service_client::ControlServiceClient, ReadGuestMetricsRequest},
+        control::{control_service_client::ControlServiceClient, ReadZoneMetricsRequest},
     },
 };
 
@@ -12,7 +12,7 @@ use tonic::transport::Channel;
 
 use crate::format::{kv2line, metrics_flat, metrics_tree, proto2dynamic};
 
-use super::resolve_guest;
+use super::resolve_zone;
 
 #[derive(ValueEnum, Clone, Debug, PartialEq, Eq)]
 enum MetricsFormat {
@@ -24,12 +24,12 @@ enum MetricsFormat {
 }
 
 #[derive(Parser)]
-#[command(about = "Read metrics from the guest")]
+#[command(about = "Read metrics from the zone")]
 pub struct MetricsCommand {
     #[arg(short, long, default_value = "tree", help = "Output format")]
     format: MetricsFormat,
-    #[arg(help = "Guest to read metrics for, either the name or the uuid")]
+    #[arg(help = "Zone to read metrics for, either the name or the uuid")]
-    guest: String,
+    zone: String,
 }
 
 impl MetricsCommand {
@@ -38,9 +38,9 @@ impl MetricsCommand {
         mut client: ControlServiceClient<Channel>,
         _events: EventStream,
     ) -> Result<()> {
-        let guest_id: String = resolve_guest(&mut client, &self.guest).await?;
+        let zone_id: String = resolve_zone(&mut client, &self.zone).await?;
         let root = client
-            .read_guest_metrics(ReadGuestMetricsRequest { guest_id })
+            .read_zone_metrics(ReadZoneMetricsRequest { zone_id })
             .await?
             .into_inner()
             .root
@@ -70,12 +70,12 @@ impl MetricsCommand {
         Ok(())
     }
 
-    fn print_metrics_tree(&self, root: GuestMetricNode) -> Result<()> {
+    fn print_metrics_tree(&self, root: ZoneMetricNode) -> Result<()> {
         print!("{}", metrics_tree(root));
         Ok(())
     }
 
-    fn print_key_value(&self, metrics: GuestMetricNode) -> Result<()> {
+    fn print_key_value(&self, metrics: ZoneMetricNode) -> Result<()> {
         let kvs = metrics_flat(metrics);
         println!("{}", kv2line(kvs));
         Ok(())

crates/ctl/src/cli/mod.rs

@@ -19,7 +19,7 @@ use clap::{Parser, Subcommand};
 use krata::{
     client::ControlClientProvider,
     events::EventStream,
-    v1::control::{control_service_client::ControlServiceClient, ResolveGuestRequest},
+    v1::control::{control_service_client::ControlServiceClient, ResolveZoneRequest},
 };
 use tonic::{transport::Channel, Request};
 
@@ -135,20 +135,20 @@ impl ControlCommand {
     }
 }
 
-pub async fn resolve_guest(
+pub async fn resolve_zone(
     client: &mut ControlServiceClient<Channel>,
     name: &str,
 ) -> Result<String> {
     let reply = client
-        .resolve_guest(Request::new(ResolveGuestRequest {
+        .resolve_zone(Request::new(ResolveZoneRequest {
             name: name.to_string(),
         }))
         .await?
         .into_inner();
 
-    if let Some(guest) = reply.guest {
+    if let Some(zone) = reply.zone {
-        Ok(guest.id)
+        Ok(zone.id)
     } else {
-        Err(anyhow!("unable to resolve guest '{}'", name))
+        Err(anyhow!("unable to resolve zone '{}'", name))
     }
 }

crates/ctl/src/cli/resolve.rs

@@ -1,26 +1,26 @@
 use anyhow::Result;
 use clap::Parser;
-use krata::v1::control::{control_service_client::ControlServiceClient, ResolveGuestRequest};
+use krata::v1::control::{control_service_client::ControlServiceClient, ResolveZoneRequest};
 
 use tonic::{transport::Channel, Request};
 
 #[derive(Parser)]
-#[command(about = "Resolve a guest name to a uuid")]
+#[command(about = "Resolve a zone name to a uuid")]
 pub struct ResolveCommand {
-    #[arg(help = "Guest name")]
+    #[arg(help = "Zone name")]
-    guest: String,
+    zone: String,
 }
 
 impl ResolveCommand {
     pub async fn run(self, mut client: ControlServiceClient<Channel>) -> Result<()> {
         let reply = client
-            .resolve_guest(Request::new(ResolveGuestRequest {
+            .resolve_zone(Request::new(ResolveZoneRequest {
-                name: self.guest.clone(),
+                name: self.zone.clone(),
             }))
             .await?
             .into_inner();
-        if let Some(guest) = reply.guest {
+        if let Some(zone) = reply.zone {
-            println!("{}", guest.id);
+            println!("{}", zone.id);
         } else {
             std::process::exit(1);
         }

crates/ctl/src/cli/top.rs

@@ -24,14 +24,14 @@ use ratatui::{
 };
 
 use crate::{
-    format::guest_status_text,
+    format::zone_status_text,
     metrics::{
         lookup_metric_value, MultiMetricCollector, MultiMetricCollectorHandle, MultiMetricState,
     },
 };
 
 #[derive(Parser)]
-#[command(about = "Dashboard for running guests")]
+#[command(about = "Dashboard for running zones")]
 pub struct TopCommand {}
 
 pub type Tui = Terminal<CrosstermBackend<Stdout>>;
@@ -46,7 +46,7 @@ impl TopCommand {
         let collector = collector.launch().await?;
         let mut tui = TopCommand::init()?;
         let mut app = TopApp {
-            metrics: MultiMetricState { guests: vec![] },
+            metrics: MultiMetricState { zones: vec![] },
             exit: false,
             table: TableState::new(),
         };
@@ -152,12 +152,12 @@ impl Widget for &mut TopApp {
 
         let mut rows = vec![];
 
-        for ms in &self.metrics.guests {
+        for ms in &self.metrics.zones {
-            let Some(ref spec) = ms.guest.spec else {
+            let Some(ref spec) = ms.zone.spec else {
                 continue;
             };
 
-            let Some(ref state) = ms.guest.state else {
+            let Some(ref state) = ms.zone.state else {
                 continue;
             };
 
@@ -176,8 +176,8 @@ impl Widget for &mut TopApp {
 
             let row = Row::new(vec![
                 spec.name.clone(),
-                ms.guest.id.clone(),
+                ms.zone.id.clone(),
-                guest_status_text(state.status()),
+                zone_status_text(state.status()),
                 memory_total.unwrap_or_default(),
                 memory_used.unwrap_or_default(),
                 memory_free.unwrap_or_default(),

crates/ctl/src/cli/watch.rs

@@ -2,12 +2,12 @@ use anyhow::Result;
 use clap::{Parser, ValueEnum};
 use krata::{
     events::EventStream,
-    v1::{common::Guest, control::watch_events_reply::Event},
+    v1::{common::Zone, control::watch_events_reply::Event},
 };
 use prost_reflect::ReflectMessage;
 use serde_json::Value;
 
-use crate::format::{guest_simple_line, kv2line, proto2dynamic, proto2kv};
+use crate::format::{kv2line, proto2dynamic, proto2kv, zone_simple_line};
 
 #[derive(ValueEnum, Clone, Debug, PartialEq, Eq)]
 enum WatchFormat {
@@ -17,7 +17,7 @@ enum WatchFormat {
 }
 
 #[derive(Parser)]
-#[command(about = "Watch for guest changes")]
+#[command(about = "Watch for zone changes")]
 pub struct WatchCommand {
     #[arg(short, long, default_value = "simple", help = "Output format")]
     format: WatchFormat,
@@ -29,22 +29,17 @@ impl WatchCommand {
         loop {
             let event = stream.recv().await?;
 
-            let Event::GuestChanged(changed) = event;
+            let Event::ZoneChanged(changed) = event;
-            let guest = changed.guest.clone();
+            let zone = changed.zone.clone();
-            self.print_event("guest.changed", changed, guest)?;
+            self.print_event("zone.changed", changed, zone)?;
         }
     }
 
-    fn print_event(
+    fn print_event(&self, typ: &str, event: impl ReflectMessage, zone: Option<Zone>) -> Result<()> {
-        &self,
-        typ: &str,
-        event: impl ReflectMessage,
-        guest: Option<Guest>,
-    ) -> Result<()> {
         match self.format {
             WatchFormat::Simple => {
-                if let Some(guest) = guest {
+                if let Some(zone) = zone {
-                    println!("{}", guest_simple_line(&guest));
+                    println!("{}", zone_simple_line(&zone));
                 }
             }
 

crates/ctl/src/console.rs

@@ -7,10 +7,10 @@ use crossterm::{
 use krata::{
     events::EventStream,
     v1::{
-        common::GuestStatus,
+        common::ZoneStatus,
         control::{
-            watch_events_reply::Event, ConsoleDataReply, ConsoleDataRequest, ExecGuestReply,
+            watch_events_reply::Event, ExecZoneReply, ExecZoneRequest, ZoneConsoleReply,
-            ExecGuestRequest,
+            ZoneConsoleRequest,
         },
     },
 };
@@ -25,10 +25,10 @@ use tonic::Streaming;
 pub struct StdioConsoleStream;
 
 impl StdioConsoleStream {
-    pub async fn stdin_stream(guest: String) -> impl Stream<Item = ConsoleDataRequest> {
+    pub async fn stdin_stream(zone: String) -> impl Stream<Item = ZoneConsoleRequest> {
         let mut stdin = stdin();
         stream! {
-            yield ConsoleDataRequest { guest_id: guest, data: vec![] };
+            yield ZoneConsoleRequest { zone_id: zone, data: vec![] };
 
             let mut buffer = vec![0u8; 60];
             loop {
@@ -43,14 +43,14 @@ impl StdioConsoleStream {
                 if size == 1 && buffer[0] == 0x1d {
                     break;
                 }
-                yield ConsoleDataRequest { guest_id: String::default(), data };
+                yield ZoneConsoleRequest { zone_id: String::default(), data };
             }
         }
     }
 
     pub async fn stdin_stream_exec(
-        initial: ExecGuestRequest,
+        initial: ExecZoneRequest,
-    ) -> impl Stream<Item = ExecGuestRequest> {
+    ) -> impl Stream<Item = ExecZoneRequest> {
         let mut stdin = stdin();
         stream! {
             yield initial;
@@ -68,12 +68,12 @@ impl StdioConsoleStream {
                 if size == 1 && buffer[0] == 0x1d {
                     break;
                 }
-                yield ExecGuestRequest { guest_id: String::default(), task: None, data };
+                yield ExecZoneRequest { zone_id: String::default(), task: None, data };
             }
         }
     }
 
-    pub async fn stdout(mut stream: Streaming<ConsoleDataReply>) -> Result<()> {
+    pub async fn stdout(mut stream: Streaming<ZoneConsoleReply>) -> Result<()> {
         if stdin().is_tty() {
             enable_raw_mode()?;
             StdioConsoleStream::register_terminal_restore_hook()?;
@@ -90,7 +90,7 @@ impl StdioConsoleStream {
         Ok(())
     }
 
-    pub async fn exec_output(mut stream: Streaming<ExecGuestReply>) -> Result<i32> {
+    pub async fn exec_output(mut stream: Streaming<ExecZoneReply>) -> Result<i32> {
         let mut stdout = stdout();
         let mut stderr = stderr();
         while let Some(reply) = stream.next().await {
@@ -106,33 +106,33 @@ impl StdioConsoleStream {
             }
 
             if reply.exited {
-                if reply.error.is_empty() {
+                return if reply.error.is_empty() {
-                    return Ok(reply.exit_code);
+                    Ok(reply.exit_code)
                 } else {
-                    return Err(anyhow!("exec failed: {}", reply.error));
+                    Err(anyhow!("exec failed: {}", reply.error))
-                }
+                };
             }
         }
         Ok(-1)
     }
 
-    pub async fn guest_exit_hook(
+    pub async fn zone_exit_hook(
         id: String,
         events: EventStream,
     ) -> Result<JoinHandle<Option<i32>>> {
         Ok(tokio::task::spawn(async move {
             let mut stream = events.subscribe();
             while let Ok(event) = stream.recv().await {
-                let Event::GuestChanged(changed) = event;
+                let Event::ZoneChanged(changed) = event;
-                let Some(guest) = changed.guest else {
+                let Some(zone) = changed.zone else {
                     continue;
                 };
 
-                let Some(state) = guest.state else {
+                let Some(state) = zone.state else {
                     continue;
                 };
 
-                if guest.id != id {
+                if zone.id != id {
                     continue;
                 }
 
@@ -141,7 +141,7 @@ impl StdioConsoleStream {
                 }
 
                 let status = state.status();
-                if status == GuestStatus::Destroying || status == GuestStatus::Destroyed {
+                if status == ZoneStatus::Destroying || status == ZoneStatus::Destroyed {
                     return Some(10);
                 }
             }

crates/ctl/src/format.rs

@@ -3,7 +3,7 @@ use std::{collections::HashMap, time::Duration};
 use anyhow::Result;
 use fancy_duration::FancyDuration;
 use human_bytes::human_bytes;
-use krata::v1::common::{Guest, GuestMetricFormat, GuestMetricNode, GuestStatus};
+use krata::v1::common::{Zone, ZoneMetricFormat, ZoneMetricNode, ZoneStatus};
 use prost_reflect::{DynamicMessage, ReflectMessage};
 use prost_types::Value;
 use termtree::Tree;
@@ -75,32 +75,31 @@ pub fn kv2line(map: HashMap<String, String>) -> String {
         .join(" ")
 }
 
-pub fn guest_status_text(status: GuestStatus) -> String {
+pub fn zone_status_text(status: ZoneStatus) -> String {
     match status {
-        GuestStatus::Starting => "starting",
+        ZoneStatus::Starting => "starting",
-        GuestStatus::Started => "started",
+        ZoneStatus::Started => "started",
-        GuestStatus::Destroying => "destroying",
+        ZoneStatus::Destroying => "destroying",
-        GuestStatus::Destroyed => "destroyed",
+        ZoneStatus::Destroyed => "destroyed",
-        GuestStatus::Exited => "exited",
+        ZoneStatus::Exited => "exited",
-        GuestStatus::Failed => "failed",
+        ZoneStatus::Failed => "failed",
         _ => "unknown",
     }
     .to_string()
 }
 
-pub fn guest_simple_line(guest: &Guest) -> String {
+pub fn zone_simple_line(zone: &Zone) -> String {
-    let state = guest_status_text(
+    let state = zone_status_text(
-        guest
+        zone.state
-            .state
             .as_ref()
             .map(|x| x.status())
-            .unwrap_or(GuestStatus::Unknown),
+            .unwrap_or(ZoneStatus::Unknown),
     );
-    let name = guest.spec.as_ref().map(|x| x.name.as_str()).unwrap_or("");
+    let name = zone.spec.as_ref().map(|x| x.name.as_str()).unwrap_or("");
-    let network = guest.state.as_ref().and_then(|x| x.network.as_ref());
+    let network = zone.state.as_ref().and_then(|x| x.network.as_ref());
-    let ipv4 = network.map(|x| x.guest_ipv4.as_str()).unwrap_or("");
+    let ipv4 = network.map(|x| x.zone_ipv4.as_str()).unwrap_or("");
-    let ipv6 = network.map(|x| x.guest_ipv6.as_str()).unwrap_or("");
+    let ipv6 = network.map(|x| x.zone_ipv6.as_str()).unwrap_or("");
-    format!("{}\t{}\t{}\t{}\t{}", guest.id, state, name, ipv4, ipv6)
+    format!("{}\t{}\t{}\t{}\t{}", zone.id, state, name, ipv4, ipv6)
 }
 
 fn metrics_value_string(value: Value) -> String {
@@ -116,18 +115,18 @@ fn metrics_value_numeric(value: Value) -> f64 {
     string.parse::<f64>().ok().unwrap_or(f64::NAN)
 }
 
-pub fn metrics_value_pretty(value: Value, format: GuestMetricFormat) -> String {
+pub fn metrics_value_pretty(value: Value, format: ZoneMetricFormat) -> String {
     match format {
-        GuestMetricFormat::Bytes => human_bytes(metrics_value_numeric(value)),
+        ZoneMetricFormat::Bytes => human_bytes(metrics_value_numeric(value)),
-        GuestMetricFormat::Integer => (metrics_value_numeric(value) as u64).to_string(),
+        ZoneMetricFormat::Integer => (metrics_value_numeric(value) as u64).to_string(),
-        GuestMetricFormat::DurationSeconds => {
+        ZoneMetricFormat::DurationSeconds => {
             FancyDuration(Duration::from_secs_f64(metrics_value_numeric(value))).to_string()
         }
         _ => metrics_value_string(value),
     }
 }
 
-fn metrics_flat_internal(prefix: &str, node: GuestMetricNode, map: &mut HashMap<String, String>) {
+fn metrics_flat_internal(prefix: &str, node: ZoneMetricNode, map: &mut HashMap<String, String>) {
     if let Some(value) = node.value {
         map.insert(prefix.to_string(), metrics_value_string(value));
     }
@@ -142,13 +141,13 @@ fn metrics_flat_internal(prefix: &str, node: GuestMetricNode, map: &mut HashMap<
     }
 }
 
-pub fn metrics_flat(root: GuestMetricNode) -> HashMap<String, String> {
+pub fn metrics_flat(root: ZoneMetricNode) -> HashMap<String, String> {
     let mut map = HashMap::new();
     metrics_flat_internal("", root, &mut map);
     map
 }
 
-pub fn metrics_tree(node: GuestMetricNode) -> Tree<String> {
+pub fn metrics_tree(node: ZoneMetricNode) -> Tree<String> {
     let mut name = node.name.to_string();
     let format = node.format();
     if let Some(value) = node.value {

crates/ctl/src/metrics.rs

@@ -2,10 +2,10 @@ use anyhow::Result;
 use krata::{
     events::EventStream,
     v1::{
-        common::{Guest, GuestMetricNode, GuestStatus},
+        common::{Zone, ZoneMetricNode, ZoneStatus},
         control::{
             control_service_client::ControlServiceClient, watch_events_reply::Event,
-            ListGuestsRequest, ReadGuestMetricsRequest,
+            ListZonesRequest, ReadZoneMetricsRequest,
         },
     },
 };
@@ -22,12 +22,12 @@ use tonic::transport::Channel;
 use crate::format::metrics_value_pretty;
 
 pub struct MetricState {
-    pub guest: Guest,
+    pub zone: Zone,
-    pub root: Option<GuestMetricNode>,
+    pub root: Option<ZoneMetricNode>,
 }
 
 pub struct MultiMetricState {
-    pub guests: Vec<MetricState>,
+    pub zones: Vec<MetricState>,
 }
 
 pub struct MultiMetricCollector {
@@ -72,26 +72,26 @@ impl MultiMetricCollector {
 
     pub async fn process(&mut self, sender: Sender<MultiMetricState>) -> Result<()> {
         let mut events = self.events.subscribe();
-        let mut guests: Vec<Guest> = self
+        let mut zones: Vec<Zone> = self
             .client
-            .list_guests(ListGuestsRequest {})
+            .list_zones(ListZonesRequest {})
             .await?
             .into_inner()
-            .guests;
+            .zones;
         loop {
             let collect = select! {
                 x = events.recv() => match x {
                     Ok(event) => {
-                        let Event::GuestChanged(changed) = event;
+                        let Event::ZoneChanged(changed) = event;
-                            let Some(guest) = changed.guest else {
+                            let Some(zone) = changed.zone else {
                                 continue;
                             };
-                            let Some(ref state) = guest.state else {
+                            let Some(ref state) = zone.state else {
                                 continue;
                             };
-                            guests.retain(|x| x.id != guest.id);
+                            zones.retain(|x| x.id != zone.id);
-                            if state.status() != GuestStatus::Destroying {
+                            if state.status() != ZoneStatus::Destroying {
-                                guests.push(guest);
+                                zones.push(zone);
                             }
                         false
                     },
@@ -111,19 +111,19 @@ impl MultiMetricCollector {
             }
 
             let mut metrics = Vec::new();
-            for guest in &guests {
+            for zone in &zones {
-                let Some(ref state) = guest.state else {
+                let Some(ref state) = zone.state else {
                     continue;
                 };
 
-                if state.status() != GuestStatus::Started {
+                if state.status() != ZoneStatus::Started {
                     continue;
                 }
 
                 let root = timeout(
                     Duration::from_secs(5),
-                    self.client.read_guest_metrics(ReadGuestMetricsRequest {
+                    self.client.read_zone_metrics(ReadZoneMetricsRequest {
-                        guest_id: guest.id.clone(),
+                        zone_id: zone.id.clone(),
                     }),
                 )
                 .await
@@ -132,16 +132,16 @@ impl MultiMetricCollector {
                 .map(|x| x.into_inner())
                 .and_then(|x| x.root);
                 metrics.push(MetricState {
-                    guest: guest.clone(),
+                    zone: zone.clone(),
                     root,
                 });
             }
-            sender.send(MultiMetricState { guests: metrics }).await?;
+            sender.send(MultiMetricState { zones: metrics }).await?;
         }
     }
 }
 
-pub fn lookup<'a>(node: &'a GuestMetricNode, path: &str) -> Option<&'a GuestMetricNode> {
+pub fn lookup<'a>(node: &'a ZoneMetricNode, path: &str) -> Option<&'a ZoneMetricNode> {
     let Some((what, b)) = path.split_once('/') else {
         return node.children.iter().find(|x| x.name == path);
     };
@@ -149,7 +149,7 @@ pub fn lookup<'a>(node: &'a GuestMetricNode, path: &str) -> Option<&'a GuestMetr
     return lookup(next, b);
 }
 
-pub fn lookup_metric_value(node: &GuestMetricNode, path: &str) -> Option<String> {
+pub fn lookup_metric_value(node: &ZoneMetricNode, path: &str) -> Option<String> {
     lookup(node, path).and_then(|x| {
         x.value
             .as_ref()

crates/daemon/src/console.rs

@@ -13,7 +13,7 @@ use tokio::{
 };
 use uuid::Uuid;
 
-use crate::glt::GuestLookupTable;
+use crate::zlt::ZoneLookupTable;
 
 const CONSOLE_BUFFER_SIZE: usize = 1024 * 1024;
 type RawConsoleBuffer = CircularBuffer<CONSOLE_BUFFER_SIZE, u8>;
@@ -24,7 +24,7 @@ type BufferMap = Arc<Mutex<HashMap<u32, ConsoleBuffer>>>;
 
 #[derive(Clone)]
 pub struct DaemonConsoleHandle {
-    glt: GuestLookupTable,
+    glt: ZoneLookupTable,
     listeners: ListenerMap,
     buffers: BufferMap,
     sender: Sender<(u32, Vec<u8>)>,
@@ -84,7 +84,7 @@ impl Drop for DaemonConsoleHandle {
 }
 
 pub struct DaemonConsole {
-    glt: GuestLookupTable,
+    glt: ZoneLookupTable,
     listeners: ListenerMap,
     buffers: BufferMap,
     receiver: Receiver<(u32, Option<Vec<u8>>)>,
@@ -93,7 +93,7 @@ pub struct DaemonConsole {
 }
 
 impl DaemonConsole {
-    pub async fn new(glt: GuestLookupTable) -> Result<DaemonConsole> {
+    pub async fn new(glt: ZoneLookupTable) -> Result<DaemonConsole> {
         let (service, sender, receiver) =
             ChannelService::new("krata-console".to_string(), Some(0)).await?;
         let task = service.launch().await?;

crates/daemon/src/control.rs

@@ -7,16 +7,16 @@ use krata::{
         ExecStreamRequestStdin, ExecStreamRequestUpdate, MetricsRequest, Request as IdmRequest,
     },
     v1::{
-        common::{Guest, GuestState, GuestStatus, OciImageFormat},
+        common::{OciImageFormat, Zone, ZoneState, ZoneStatus},
         control::{
-            control_service_server::ControlService, ConsoleDataReply, ConsoleDataRequest,
+            control_service_server::ControlService, CreateZoneReply, CreateZoneRequest,
-            CreateGuestReply, CreateGuestRequest, DestroyGuestReply, DestroyGuestRequest,
+            DestroyZoneReply, DestroyZoneRequest, DeviceInfo, ExecZoneReply, ExecZoneRequest,
-            DeviceInfo, ExecGuestReply, ExecGuestRequest, HostCpuTopologyInfo,
+            HostCpuTopologyInfo, HostCpuTopologyReply, HostCpuTopologyRequest,
-            HostCpuTopologyReply, HostCpuTopologyRequest, HostPowerManagementPolicy,
+            HostPowerManagementPolicy, IdentifyHostReply, IdentifyHostRequest, ListDevicesReply,
-            IdentifyHostReply, IdentifyHostRequest, ListDevicesReply, ListDevicesRequest,
+            ListDevicesRequest, ListZonesReply, ListZonesRequest, PullImageReply, PullImageRequest,
-            ListGuestsReply, ListGuestsRequest, PullImageReply, PullImageRequest,
+            ReadZoneMetricsReply, ReadZoneMetricsRequest, ResolveZoneReply, ResolveZoneRequest,
-            ReadGuestMetricsReply, ReadGuestMetricsRequest, ResolveGuestReply, ResolveGuestRequest,
+            SnoopIdmReply, SnoopIdmRequest, WatchEventsReply, WatchEventsRequest, ZoneConsoleReply,
-            SnoopIdmReply, SnoopIdmRequest, WatchEventsReply, WatchEventsRequest,
+            ZoneConsoleRequest,
         },
     },
 };
@@ -37,9 +37,9 @@ use tonic::{Request, Response, Status, Streaming};
 use uuid::Uuid;
 
 use crate::{
-    command::DaemonCommand, console::DaemonConsoleHandle, db::GuestStore,
+    command::DaemonCommand, console::DaemonConsoleHandle, db::ZoneStore,
-    devices::DaemonDeviceManager, event::DaemonEventContext, glt::GuestLookupTable,
+    devices::DaemonDeviceManager, event::DaemonEventContext, idm::DaemonIdmHandle,
-    idm::DaemonIdmHandle, metrics::idm_metric_to_api, oci::convert_oci_progress,
+    metrics::idm_metric_to_api, oci::convert_oci_progress, zlt::ZoneLookupTable,
 };
 
 pub struct ApiError {
@@ -62,13 +62,13 @@ impl From<ApiError> for Status {
 
 #[derive(Clone)]
 pub struct DaemonControlService {
-    glt: GuestLookupTable,
+    glt: ZoneLookupTable,
     devices: DaemonDeviceManager,
     events: DaemonEventContext,
     console: DaemonConsoleHandle,
     idm: DaemonIdmHandle,
-    guests: GuestStore,
+    zones: ZoneStore,
-    guest_reconciler_notify: Sender<Uuid>,
+    zone_reconciler_notify: Sender<Uuid>,
     packer: OciPackerService,
     runtime: Runtime,
 }
@@ -76,13 +76,13 @@ pub struct DaemonControlService {
 impl DaemonControlService {
     #[allow(clippy::too_many_arguments)]
     pub fn new(
-        glt: GuestLookupTable,
+        glt: ZoneLookupTable,
         devices: DaemonDeviceManager,
         events: DaemonEventContext,
         console: DaemonConsoleHandle,
         idm: DaemonIdmHandle,
-        guests: GuestStore,
+        zones: ZoneStore,
-        guest_reconciler_notify: Sender<Uuid>,
+        zone_reconciler_notify: Sender<Uuid>,
         packer: OciPackerService,
         runtime: Runtime,
     ) -> Self {
@@ -92,8 +92,8 @@ impl DaemonControlService {
             events,
             console,
             idm,
-            guests,
+            zones,
-            guest_reconciler_notify,
+            zone_reconciler_notify,
             packer,
             runtime,
         }
@@ -102,7 +102,7 @@ impl DaemonControlService {
 
 enum ConsoleDataSelect {
     Read(Option<Vec<u8>>),
-    Write(Option<Result<ConsoleDataRequest, tonic::Status>>),
+    Write(Option<Result<ZoneConsoleRequest, Status>>),
 }
 
 enum PullImageSelect {
@@ -112,11 +112,11 @@ enum PullImageSelect {
 
 #[tonic::async_trait]
 impl ControlService for DaemonControlService {
-    type ExecGuestStream =
+    type ExecZoneStream =
-        Pin<Box<dyn Stream<Item = Result<ExecGuestReply, Status>> + Send + 'static>>;
+        Pin<Box<dyn Stream<Item = Result<ExecZoneReply, Status>> + Send + 'static>>;
 
-    type ConsoleDataStream =
+    type AttachZoneConsoleStream =
-        Pin<Box<dyn Stream<Item = Result<ConsoleDataReply, Status>> + Send + 'static>>;
+        Pin<Box<dyn Stream<Item = Result<ZoneConsoleReply, Status>> + Send + 'static>>;
 
     type PullImageStream =
         Pin<Box<dyn Stream<Item = Result<PullImageReply, Status>> + Send + 'static>>;
@@ -139,25 +139,25 @@ impl ControlService for DaemonControlService {
         }))
     }
 
-    async fn create_guest(
+    async fn create_zone(
         &self,
-        request: Request<CreateGuestRequest>,
+        request: Request<CreateZoneRequest>,
-    ) -> Result<Response<CreateGuestReply>, Status> {
+    ) -> Result<Response<CreateZoneReply>, Status> {
         let request = request.into_inner();
         let Some(spec) = request.spec else {
             return Err(ApiError {
-                message: "guest spec not provided".to_string(),
+                message: "zone spec not provided".to_string(),
             }
             .into());
         };
         let uuid = Uuid::new_v4();
-        self.guests
+        self.zones
             .update(
                 uuid,
-                Guest {
+                Zone {
                     id: uuid.to_string(),
-                    state: Some(GuestState {
+                    state: Some(ZoneState {
-                        status: GuestStatus::Starting.into(),
+                        status: ZoneStatus::Starting.into(),
                         network: None,
                         exit_info: None,
                         error_info: None,
@@ -169,21 +169,21 @@ impl ControlService for DaemonControlService {
             )
             .await
             .map_err(ApiError::from)?;
-        self.guest_reconciler_notify
+        self.zone_reconciler_notify
             .send(uuid)
             .await
             .map_err(|x| ApiError {
                 message: x.to_string(),
             })?;
-        Ok(Response::new(CreateGuestReply {
+        Ok(Response::new(CreateZoneReply {
-            guest_id: uuid.to_string(),
+            zone_id: uuid.to_string(),
         }))
     }
 
-    async fn exec_guest(
+    async fn exec_zone(
         &self,
-        request: Request<Streaming<ExecGuestRequest>>,
+        request: Request<Streaming<ExecZoneRequest>>,
-    ) -> Result<Response<Self::ExecGuestStream>, Status> {
+    ) -> Result<Response<Self::ExecZoneStream>, Status> {
         let mut input = request.into_inner();
         let Some(request) = input.next().await else {
             return Err(ApiError {
@@ -200,7 +200,7 @@ impl ControlService for DaemonControlService {
             .into());
         };
 
-        let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
+        let uuid = Uuid::from_str(&request.zone_id).map_err(|error| ApiError {
             message: error.to_string(),
         })?;
         let idm = self.idm.client(uuid).await.map_err(|error| ApiError {
@@ -232,7 +232,7 @@ impl ControlService for DaemonControlService {
             loop {
                 select! {
                     x = input.next() => if let Some(update) = x {
-                        let update: Result<ExecGuestRequest, Status> = update.map_err(|error| ApiError {
+                        let update: Result<ExecZoneRequest, Status> = update.map_err(|error| ApiError {
                             message: error.to_string()
                         }.into());
 
@@ -252,7 +252,7 @@ impl ControlService for DaemonControlService {
                             let Some(IdmResponseType::ExecStream(update)) = response.response else {
                                 break;
                             };
-                            let reply = ExecGuestReply {
+                            let reply = ExecZoneReply {
                                 exited: update.exited,
                                 error: update.error,
                                 exit_code: update.exit_code,
@@ -269,80 +269,80 @@ impl ControlService for DaemonControlService {
             }
         };
 
-        Ok(Response::new(Box::pin(output) as Self::ExecGuestStream))
+        Ok(Response::new(Box::pin(output) as Self::ExecZoneStream))
     }
 
-    async fn destroy_guest(
+    async fn destroy_zone(
         &self,
-        request: Request<DestroyGuestRequest>,
+        request: Request<DestroyZoneRequest>,
-    ) -> Result<Response<DestroyGuestReply>, Status> {
+    ) -> Result<Response<DestroyZoneReply>, Status> {
         let request = request.into_inner();
-        let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
+        let uuid = Uuid::from_str(&request.zone_id).map_err(|error| ApiError {
             message: error.to_string(),
         })?;
-        let Some(mut guest) = self.guests.read(uuid).await.map_err(ApiError::from)? else {
+        let Some(mut zone) = self.zones.read(uuid).await.map_err(ApiError::from)? else {
             return Err(ApiError {
-                message: "guest not found".to_string(),
+                message: "zone not found".to_string(),
             }
             .into());
         };
 
-        guest.state = Some(guest.state.as_mut().cloned().unwrap_or_default());
+        zone.state = Some(zone.state.as_mut().cloned().unwrap_or_default());
 
-        if guest.state.as_ref().unwrap().status() == GuestStatus::Destroyed {
+        if zone.state.as_ref().unwrap().status() == ZoneStatus::Destroyed {
             return Err(ApiError {
-                message: "guest already destroyed".to_string(),
+                message: "zone already destroyed".to_string(),
             }
             .into());
         }
 
-        guest.state.as_mut().unwrap().status = GuestStatus::Destroying.into();
+        zone.state.as_mut().unwrap().status = ZoneStatus::Destroying.into();
-        self.guests
+        self.zones
-            .update(uuid, guest)
+            .update(uuid, zone)
             .await
             .map_err(ApiError::from)?;
-        self.guest_reconciler_notify
+        self.zone_reconciler_notify
             .send(uuid)
             .await
             .map_err(|x| ApiError {
                 message: x.to_string(),
             })?;
-        Ok(Response::new(DestroyGuestReply {}))
+        Ok(Response::new(DestroyZoneReply {}))
     }
 
-    async fn list_guests(
+    async fn list_zones(
         &self,
-        request: Request<ListGuestsRequest>,
+        request: Request<ListZonesRequest>,
-    ) -> Result<Response<ListGuestsReply>, Status> {
+    ) -> Result<Response<ListZonesReply>, Status> {
         let _ = request.into_inner();
-        let guests = self.guests.list().await.map_err(ApiError::from)?;
+        let zones = self.zones.list().await.map_err(ApiError::from)?;
-        let guests = guests.into_values().collect::<Vec<Guest>>();
+        let zones = zones.into_values().collect::<Vec<Zone>>();
-        Ok(Response::new(ListGuestsReply { guests }))
+        Ok(Response::new(ListZonesReply { zones }))
     }
 
-    async fn resolve_guest(
+    async fn resolve_zone(
         &self,
-        request: Request<ResolveGuestRequest>,
+        request: Request<ResolveZoneRequest>,
-    ) -> Result<Response<ResolveGuestReply>, Status> {
+    ) -> Result<Response<ResolveZoneReply>, Status> {
         let request = request.into_inner();
-        let guests = self.guests.list().await.map_err(ApiError::from)?;
+        let zones = self.zones.list().await.map_err(ApiError::from)?;
-        let guests = guests
+        let zones = zones
             .into_values()
             .filter(|x| {
                 let comparison_spec = x.spec.as_ref().cloned().unwrap_or_default();
                 (!request.name.is_empty() && comparison_spec.name == request.name)
                     || x.id == request.name
             })
-            .collect::<Vec<Guest>>();
+            .collect::<Vec<Zone>>();
-        Ok(Response::new(ResolveGuestReply {
+        Ok(Response::new(ResolveZoneReply {
-            guest: guests.first().cloned(),
+            zone: zones.first().cloned(),
         }))
     }
 
-    async fn console_data(
+    async fn attach_zone_console(
         &self,
-        request: Request<Streaming<ConsoleDataRequest>>,
+        request: Request<Streaming<ZoneConsoleRequest>>,
-    ) -> Result<Response<Self::ConsoleDataStream>, Status> {
+    ) -> Result<Response<Self::AttachZoneConsoleStream>, Status> {
         let mut input = request.into_inner();
         let Some(request) = input.next().await else {
             return Err(ApiError {
@@ -351,7 +351,7 @@ impl ControlService for DaemonControlService {
             .into());
         };
         let request = request?;
-        let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
+        let uuid = Uuid::from_str(&request.zone_id).map_err(|error| ApiError {
             message: error.to_string(),
         })?;
         let (sender, mut receiver) = channel(100);
@@ -364,7 +364,7 @@ impl ControlService for DaemonControlService {
             })?;
 
         let output = try_stream! {
-            yield ConsoleDataReply { data: console.initial.clone(), };
+            yield ZoneConsoleReply { data: console.initial.clone(), };
             loop {
                 let what = select! {
                     x = receiver.recv() => ConsoleDataSelect::Read(x),
@@ -373,7 +373,7 @@ impl ControlService for DaemonControlService {
 
                 match what {
                     ConsoleDataSelect::Read(Some(data)) => {
-                        yield ConsoleDataReply { data, };
+                        yield ZoneConsoleReply { data, };
                     },
 
                     ConsoleDataSelect::Read(None) => {
@@ -396,15 +396,17 @@ impl ControlService for DaemonControlService {
             }
         };
 
-        Ok(Response::new(Box::pin(output) as Self::ConsoleDataStream))
+        Ok(Response::new(
+            Box::pin(output) as Self::AttachZoneConsoleStream
+        ))
     }
 
-    async fn read_guest_metrics(
+    async fn read_zone_metrics(
         &self,
-        request: Request<ReadGuestMetricsRequest>,
+        request: Request<ReadZoneMetricsRequest>,
-    ) -> Result<Response<ReadGuestMetricsReply>, Status> {
+    ) -> Result<Response<ReadZoneMetricsReply>, Status> {
         let request = request.into_inner();
-        let uuid = Uuid::from_str(&request.guest_id).map_err(|error| ApiError {
+        let uuid = Uuid::from_str(&request.zone_id).map_err(|error| ApiError {
             message: error.to_string(),
         })?;
         let client = self.idm.client(uuid).await.map_err(|error| ApiError {
@@ -420,7 +422,7 @@ impl ControlService for DaemonControlService {
                 message: error.to_string(),
             })?;
 
-        let mut reply = ReadGuestMetricsReply::default();
+        let mut reply = ReadZoneMetricsReply::default();
         if let Some(IdmResponseType::Metrics(metrics)) = response.response {
             reply.root = metrics.root.map(idm_metric_to_api);
         }

crates/daemon/src/db.rs

@@ -1,66 +1,66 @@
 use std::{collections::HashMap, path::Path, sync::Arc};
 
 use anyhow::Result;
-use krata::v1::common::Guest;
+use krata::v1::common::Zone;
 use log::error;
 use prost::Message;
 use redb::{Database, ReadableTable, TableDefinition};
 use uuid::Uuid;
 
-const GUESTS: TableDefinition<u128, &[u8]> = TableDefinition::new("guests");
+const ZONES: TableDefinition<u128, &[u8]> = TableDefinition::new("zones");
 
 #[derive(Clone)]
-pub struct GuestStore {
+pub struct ZoneStore {
     database: Arc<Database>,
 }
 
-impl GuestStore {
+impl ZoneStore {
     pub fn open(path: &Path) -> Result<Self> {
         let database = Database::create(path)?;
         let write = database.begin_write()?;
-        let _ = write.open_table(GUESTS);
+        let _ = write.open_table(ZONES);
         write.commit()?;
-        Ok(GuestStore {
+        Ok(ZoneStore {
             database: Arc::new(database),
         })
     }
 
-    pub async fn read(&self, id: Uuid) -> Result<Option<Guest>> {
+    pub async fn read(&self, id: Uuid) -> Result<Option<Zone>> {
         let read = self.database.begin_read()?;
-        let table = read.open_table(GUESTS)?;
+        let table = read.open_table(ZONES)?;
         let Some(entry) = table.get(id.to_u128_le())? else {
             return Ok(None);
         };
         let bytes = entry.value();
-        Ok(Some(Guest::decode(bytes)?))
+        Ok(Some(Zone::decode(bytes)?))
     }
 
-    pub async fn list(&self) -> Result<HashMap<Uuid, Guest>> {
+    pub async fn list(&self) -> Result<HashMap<Uuid, Zone>> {
-        let mut guests: HashMap<Uuid, Guest> = HashMap::new();
+        let mut zones: HashMap<Uuid, Zone> = HashMap::new();
         let read = self.database.begin_read()?;
-        let table = read.open_table(GUESTS)?;
+        let table = read.open_table(ZONES)?;
         for result in table.iter()? {
             let (key, value) = result?;
             let uuid = Uuid::from_u128_le(key.value());
-            let state = match Guest::decode(value.value()) {
+            let state = match Zone::decode(value.value()) {
                 Ok(state) => state,
                 Err(error) => {
                     error!(
-                        "found invalid guest state in database for uuid {}: {}",
+                        "found invalid zone state in database for uuid {}: {}",
                         uuid, error
                     );
                     continue;
                 }
             };
-            guests.insert(uuid, state);
+            zones.insert(uuid, state);
         }
-        Ok(guests)
+        Ok(zones)
     }
 
-    pub async fn update(&self, id: Uuid, entry: Guest) -> Result<()> {
+    pub async fn update(&self, id: Uuid, entry: Zone) -> Result<()> {
         let write = self.database.begin_write()?;
         {
-            let mut table = write.open_table(GUESTS)?;
+            let mut table = write.open_table(ZONES)?;
             let bytes = entry.encode_to_vec();
             table.insert(id.to_u128_le(), bytes.as_slice())?;
         }
@@ -71,7 +71,7 @@ impl GuestStore {
     pub async fn remove(&self, id: Uuid) -> Result<()> {
         let write = self.database.begin_write()?;
         {
-            let mut table = write.open_table(GUESTS)?;
+            let mut table = write.open_table(ZONES)?;
             table.remove(id.to_u128_le())?;
         }
         write.commit()?;

crates/daemon/src/devices.rs

@@ -31,7 +31,7 @@ impl DaemonDeviceManager {
         let mut devices = self.devices.write().await;
         let Some(state) = devices.get_mut(device) else {
             return Err(anyhow!(
-                "unable to claim unknown device '{}' for guest {}",
+                "unable to claim unknown device '{}' for zone {}",
                 device,
                 uuid
             ));
@@ -39,7 +39,7 @@ impl DaemonDeviceManager {
 
         if let Some(owner) = state.owner {
             return Err(anyhow!(
-                "unable to claim device '{}' for guest {}: already claimed by {}",
+                "unable to claim device '{}' for zone {}: already claimed by {}",
                 device,
                 uuid,
                 owner
@@ -92,7 +92,7 @@ impl DaemonDeviceManager {
 
         for (name, uuid) in &claims {
             if !devices.contains_key(name) {
-                warn!("unknown device '{}' assigned to guest {}", name, uuid);
+                warn!("unknown device '{}' assigned to zone {}", name, uuid);
             }
         }
 

crates/daemon/src/event.rs

@@ -4,10 +4,12 @@ use std::{
     time::Duration,
 };
 
+use crate::{db::ZoneStore, idm::DaemonIdmHandle};
 use anyhow::Result;
+use krata::v1::common::ZoneExitInfo;
 use krata::{
     idm::{internal::event::Event as EventType, internal::Event},
-    v1::common::{GuestExitInfo, GuestState, GuestStatus},
+    v1::common::{ZoneState, ZoneStatus},
 };
 use log::{error, warn};
 use tokio::{
@@ -21,8 +23,6 @@ use tokio::{
 };
 use uuid::Uuid;
 
-use crate::{db::GuestStore, idm::DaemonIdmHandle};
-
 pub type DaemonEvent = krata::v1::control::watch_events_reply::Event;
 
 const EVENT_CHANNEL_QUEUE_LEN: usize = 1000;
@@ -45,8 +45,8 @@ impl DaemonEventContext {
 }
 
 pub struct DaemonEventGenerator {
-    guests: GuestStore,
+    zones: ZoneStore,
-    guest_reconciler_notify: Sender<Uuid>,
+    zone_reconciler_notify: Sender<Uuid>,
     feed: broadcast::Receiver<DaemonEvent>,
     idm: DaemonIdmHandle,
     idms: HashMap<u32, (Uuid, JoinHandle<()>)>,
@@ -57,15 +57,15 @@ pub struct DaemonEventGenerator {
 
 impl DaemonEventGenerator {
     pub async fn new(
-        guests: GuestStore,
+        zones: ZoneStore,
-        guest_reconciler_notify: Sender<Uuid>,
+        zone_reconciler_notify: Sender<Uuid>,
         idm: DaemonIdmHandle,
     ) -> Result<(DaemonEventContext, DaemonEventGenerator)> {
         let (sender, _) = broadcast::channel(EVENT_CHANNEL_QUEUE_LEN);
         let (idm_sender, idm_receiver) = channel(IDM_EVENT_CHANNEL_QUEUE_LEN);
         let generator = DaemonEventGenerator {
-            guests,
+            zones,
-            guest_reconciler_notify,
+            zone_reconciler_notify,
             feed: sender.subscribe(),
             idm,
             idms: HashMap::new(),
@@ -78,20 +78,20 @@ impl DaemonEventGenerator {
     }
 
     async fn handle_feed_event(&mut self, event: &DaemonEvent) -> Result<()> {
-        let DaemonEvent::GuestChanged(changed) = event;
+        let DaemonEvent::ZoneChanged(changed) = event;
-        let Some(ref guest) = changed.guest else {
+        let Some(ref zone) = changed.zone else {
             return Ok(());
         };
 
-        let Some(ref state) = guest.state else {
+        let Some(ref state) = zone.state else {
             return Ok(());
         };
 
         let status = state.status();
-        let id = Uuid::from_str(&guest.id)?;
+        let id = Uuid::from_str(&zone.id)?;
         let domid = state.domid;
         match status {
-            GuestStatus::Started => {
+            ZoneStatus::Started => {
                 if let Entry::Vacant(e) = self.idms.entry(domid) {
                     let client = self.idm.client_by_domid(domid).await?;
                     let mut receiver = client.subscribe().await?;
@@ -111,7 +111,7 @@ impl DaemonEventGenerator {
                 }
             }
 
-            GuestStatus::Destroyed => {
+            ZoneStatus::Destroyed => {
                 if let Some((_, handle)) = self.idms.remove(&domid) {
                     handle.abort();
                 }
@@ -130,18 +130,18 @@ impl DaemonEventGenerator {
     }
 
     async fn handle_exit_code(&mut self, id: Uuid, code: i32) -> Result<()> {
-        if let Some(mut guest) = self.guests.read(id).await? {
+        if let Some(mut zone) = self.zones.read(id).await? {
-            guest.state = Some(GuestState {
+            zone.state = Some(ZoneState {
-                status: GuestStatus::Exited.into(),
+                status: ZoneStatus::Exited.into(),
-                network: guest.state.clone().unwrap_or_default().network,
+                network: zone.state.clone().unwrap_or_default().network,
-                exit_info: Some(GuestExitInfo { code }),
+                exit_info: Some(ZoneExitInfo { code }),
                 error_info: None,
-                host: guest.state.clone().map(|x| x.host).unwrap_or_default(),
+                host: zone.state.clone().map(|x| x.host).unwrap_or_default(),
-                domid: guest.state.clone().map(|x| x.domid).unwrap_or(u32::MAX),
+                domid: zone.state.clone().map(|x| x.domid).unwrap_or(u32::MAX),
             });
 
-            self.guests.update(id, guest).await?;
+            self.zones.update(id, zone).await?;
-            self.guest_reconciler_notify.send(id).await?;
+            self.zone_reconciler_notify.send(id).await?;
         }
         Ok(())
     }

crates/daemon/src/idm.rs

@@ -24,14 +24,14 @@ use tokio::{
 };
 use uuid::Uuid;
 
-use crate::glt::GuestLookupTable;
+use crate::zlt::ZoneLookupTable;
 
 type BackendFeedMap = Arc<Mutex<HashMap<u32, Sender<IdmTransportPacket>>>>;
 type ClientMap = Arc<Mutex<HashMap<u32, IdmInternalClient>>>;
 
 #[derive(Clone)]
 pub struct DaemonIdmHandle {
-    glt: GuestLookupTable,
+    glt: ZoneLookupTable,
     clients: ClientMap,
     feeds: BackendFeedMap,
     tx_sender: Sender<(u32, IdmTransportPacket)>,
@@ -72,7 +72,7 @@ pub struct DaemonIdmSnoopPacket {
 }
 
 pub struct DaemonIdm {
-    glt: GuestLookupTable,
+    glt: ZoneLookupTable,
     clients: ClientMap,
     feeds: BackendFeedMap,
     tx_sender: Sender<(u32, IdmTransportPacket)>,
@@ -84,7 +84,7 @@ pub struct DaemonIdm {
 }
 
 impl DaemonIdm {
-    pub async fn new(glt: GuestLookupTable) -> Result<DaemonIdm> {
+    pub async fn new(glt: ZoneLookupTable) -> Result<DaemonIdm> {
         let (service, tx_raw_sender, rx_receiver) =
             ChannelService::new("krata-channel".to_string(), None).await?;
         let (tx_sender, tx_receiver) = channel(100);

crates/daemon/src/lib.rs

@@ -4,16 +4,15 @@ use anyhow::{anyhow, Result};
 use config::DaemonConfig;
 use console::{DaemonConsole, DaemonConsoleHandle};
 use control::DaemonControlService;
-use db::GuestStore;
+use db::ZoneStore;
 use devices::DaemonDeviceManager;
 use event::{DaemonEventContext, DaemonEventGenerator};
-use glt::GuestLookupTable;
 use idm::{DaemonIdm, DaemonIdmHandle};
 use krata::{dial::ControlDialAddress, v1::control::control_service_server::ControlServiceServer};
 use krataoci::{packer::service::OciPackerService, registry::OciPlatform};
 use kratart::Runtime;
 use log::info;
-use reconcile::guest::GuestReconciler;
+use reconcile::zone::ZoneReconciler;
 use tokio::{
     fs,
     net::UnixListener,
@@ -23,6 +22,7 @@ use tokio::{
 use tokio_stream::wrappers::UnixListenerStream;
 use tonic::transport::{Identity, Server, ServerTlsConfig};
 use uuid::Uuid;
+use zlt::ZoneLookupTable;
 
 pub mod command;
 pub mod config;
@@ -31,21 +31,21 @@ pub mod control;
 pub mod db;
 pub mod devices;
 pub mod event;
-pub mod glt;
 pub mod idm;
 pub mod metrics;
 pub mod oci;
 pub mod reconcile;
+pub mod zlt;
 
 pub struct Daemon {
     store: String,
     _config: Arc<DaemonConfig>,
-    glt: GuestLookupTable,
+    glt: ZoneLookupTable,
     devices: DaemonDeviceManager,
-    guests: GuestStore,
+    zones: ZoneStore,
     events: DaemonEventContext,
-    guest_reconciler_task: JoinHandle<()>,
+    zone_reconciler_task: JoinHandle<()>,
-    guest_reconciler_notify: Sender<Uuid>,
+    zone_reconciler_notify: Sender<Uuid>,
     generator_task: JoinHandle<()>,
     idm: DaemonIdmHandle,
     console: DaemonConsoleHandle,
@@ -53,7 +53,7 @@ pub struct Daemon {
     runtime: Runtime,
 }
 
-const GUEST_RECONCILER_QUEUE_LEN: usize = 1000;
+const ZONE_RECONCILER_QUEUE_LEN: usize = 1000;
 
 impl Daemon {
     pub async fn new(store: String) -> Result<Self> {
@@ -89,40 +89,40 @@ impl Daemon {
             generated
         };
 
-        let initrd_path = detect_guest_path(&store, "initrd")?;
+        let initrd_path = detect_zone_path(&store, "initrd")?;
-        let kernel_path = detect_guest_path(&store, "kernel")?;
+        let kernel_path = detect_zone_path(&store, "kernel")?;
-        let addons_path = detect_guest_path(&store, "addons.squashfs")?;
+        let addons_path = detect_zone_path(&store, "addons.squashfs")?;
 
         let seed = config.oci.seed.clone().map(PathBuf::from);
         let packer = OciPackerService::new(seed, &image_cache_dir, OciPlatform::current()).await?;
         let runtime = Runtime::new(host_uuid).await?;
-        let glt = GuestLookupTable::new(0, host_uuid);
+        let glt = ZoneLookupTable::new(0, host_uuid);
-        let guests_db_path = format!("{}/guests.db", store);
+        let zones_db_path = format!("{}/zones.db", store);
-        let guests = GuestStore::open(&PathBuf::from(guests_db_path))?;
+        let zones = ZoneStore::open(&PathBuf::from(zones_db_path))?;
-        let (guest_reconciler_notify, guest_reconciler_receiver) =
+        let (zone_reconciler_notify, zone_reconciler_receiver) =
-            channel::<Uuid>(GUEST_RECONCILER_QUEUE_LEN);
+            channel::<Uuid>(ZONE_RECONCILER_QUEUE_LEN);
         let idm = DaemonIdm::new(glt.clone()).await?;
         let idm = idm.launch().await?;
         let console = DaemonConsole::new(glt.clone()).await?;
         let console = console.launch().await?;
         let (events, generator) =
-            DaemonEventGenerator::new(guests.clone(), guest_reconciler_notify.clone(), idm.clone())
+            DaemonEventGenerator::new(zones.clone(), zone_reconciler_notify.clone(), idm.clone())
                 .await?;
         let runtime_for_reconciler = runtime.dupe().await?;
-        let guest_reconciler = GuestReconciler::new(
+        let zone_reconciler = ZoneReconciler::new(
             devices.clone(),
             glt.clone(),
-            guests.clone(),
+            zones.clone(),
             events.clone(),
             runtime_for_reconciler,
             packer.clone(),
-            guest_reconciler_notify.clone(),
+            zone_reconciler_notify.clone(),
             kernel_path,
             initrd_path,
             addons_path,
         )?;
 
-        let guest_reconciler_task = guest_reconciler.launch(guest_reconciler_receiver).await?;
+        let zone_reconciler_task = zone_reconciler.launch(zone_reconciler_receiver).await?;
         let generator_task = generator.launch().await?;
 
         // TODO: Create a way of abstracting early init tasks in kratad.
@@ -139,10 +139,10 @@ impl Daemon {
             _config: config,
             glt,
             devices,
-            guests,
+            zones,
             events,
-            guest_reconciler_task,
+            zone_reconciler_task,
-            guest_reconciler_notify,
+            zone_reconciler_notify,
             generator_task,
             idm,
             console,
@@ -158,8 +158,8 @@ impl Daemon {
             self.events.clone(),
             self.console.clone(),
             self.idm.clone(),
-            self.guests.clone(),
+            self.zones.clone(),
-            self.guest_reconciler_notify.clone(),
+            self.zone_reconciler_notify.clone(),
             self.packer.clone(),
             self.runtime.clone(),
         );
@@ -214,20 +214,20 @@ impl Daemon {
 
 impl Drop for Daemon {
     fn drop(&mut self) {
-        self.guest_reconciler_task.abort();
+        self.zone_reconciler_task.abort();
         self.generator_task.abort();
     }
 }
 
-fn detect_guest_path(store: &str, name: &str) -> Result<PathBuf> {
+fn detect_zone_path(store: &str, name: &str) -> Result<PathBuf> {
-    let mut path = PathBuf::from(format!("{}/guest/{}", store, name));
+    let mut path = PathBuf::from(format!("{}/zone/{}", store, name));
     if path.is_file() {
         return Ok(path);
     }
 
-    path = PathBuf::from(format!("/usr/share/krata/guest/{}", name));
+    path = PathBuf::from(format!("/usr/share/krata/zone/{}", name));
     if path.is_file() {
         return Ok(path);
     }
-    Err(anyhow!("unable to find required guest file: {}", name))
+    Err(anyhow!("unable to find required zone file: {}", name))
 }

crates/daemon/src/metrics.rs

@@ -1,20 +1,20 @@
 use krata::{
     idm::internal::{MetricFormat, MetricNode},
-    v1::common::{GuestMetricFormat, GuestMetricNode},
+    v1::common::{ZoneMetricFormat, ZoneMetricNode},
 };
 
-fn idm_metric_format_to_api(format: MetricFormat) -> GuestMetricFormat {
+fn idm_metric_format_to_api(format: MetricFormat) -> ZoneMetricFormat {
     match format {
-        MetricFormat::Unknown => GuestMetricFormat::Unknown,
+        MetricFormat::Unknown => ZoneMetricFormat::Unknown,
-        MetricFormat::Bytes => GuestMetricFormat::Bytes,
+        MetricFormat::Bytes => ZoneMetricFormat::Bytes,
-        MetricFormat::Integer => GuestMetricFormat::Integer,
+        MetricFormat::Integer => ZoneMetricFormat::Integer,
-        MetricFormat::DurationSeconds => GuestMetricFormat::DurationSeconds,
+        MetricFormat::DurationSeconds => ZoneMetricFormat::DurationSeconds,
     }
 }
 
-pub fn idm_metric_to_api(node: MetricNode) -> GuestMetricNode {
+pub fn idm_metric_to_api(node: MetricNode) -> ZoneMetricNode {
     let format = node.format();
-    GuestMetricNode {
+    ZoneMetricNode {
         name: node.name,
         value: node.value,
         format: idm_metric_format_to_api(format).into(),

crates/daemon/src/reconcile/mod.rs

@@ -1 +1 @@
-pub mod guest;
+pub mod zone;

crates/daemon/src/reconcile/zone/mod.rs

@@ -7,11 +7,11 @@ use std::{
 
 use anyhow::Result;
 use krata::v1::{
-    common::{Guest, GuestErrorInfo, GuestExitInfo, GuestNetworkState, GuestState, GuestStatus},
+    common::{Zone, ZoneErrorInfo, ZoneExitInfo, ZoneNetworkState, ZoneState, ZoneStatus},
-    control::GuestChangedEvent,
+    control::ZoneChangedEvent,
 };
 use krataoci::packer::service::OciPackerService;
-use kratart::{GuestInfo, Runtime};
+use kratart::{Runtime, ZoneInfo};
 use log::{error, info, trace, warn};
 use tokio::{
     select,
@@ -25,69 +25,69 @@ use tokio::{
 use uuid::Uuid;
 
 use crate::{
-    db::GuestStore,
+    db::ZoneStore,
     devices::DaemonDeviceManager,
     event::{DaemonEvent, DaemonEventContext},
-    glt::GuestLookupTable,
+    zlt::ZoneLookupTable,
 };
 
-use self::start::GuestStarter;
+use self::start::ZoneStarter;
 
 mod start;
 
 const PARALLEL_LIMIT: u32 = 5;
 
 #[derive(Debug)]
-enum GuestReconcilerResult {
+enum ZoneReconcilerResult {
     Unchanged,
     Changed { rerun: bool },
 }
 
-struct GuestReconcilerEntry {
+struct ZoneReconcilerEntry {
     task: JoinHandle<()>,
     sender: Sender<()>,
 }
 
-impl Drop for GuestReconcilerEntry {
+impl Drop for ZoneReconcilerEntry {
     fn drop(&mut self) {
         self.task.abort();
     }
 }
 
 #[derive(Clone)]
-pub struct GuestReconciler {
+pub struct ZoneReconciler {
     devices: DaemonDeviceManager,
-    glt: GuestLookupTable,
+    zlt: ZoneLookupTable,
-    guests: GuestStore,
+    zones: ZoneStore,
     events: DaemonEventContext,
     runtime: Runtime,
     packer: OciPackerService,
     kernel_path: PathBuf,
     initrd_path: PathBuf,
     addons_path: PathBuf,
-    tasks: Arc<Mutex<HashMap<Uuid, GuestReconcilerEntry>>>,
+    tasks: Arc<Mutex<HashMap<Uuid, ZoneReconcilerEntry>>>,
-    guest_reconciler_notify: Sender<Uuid>,
+    zone_reconciler_notify: Sender<Uuid>,
-    reconcile_lock: Arc<RwLock<()>>,
+    zone_reconcile_lock: Arc<RwLock<()>>,
 }
 
-impl GuestReconciler {
+impl ZoneReconciler {
     #[allow(clippy::too_many_arguments)]
     pub fn new(
         devices: DaemonDeviceManager,
-        glt: GuestLookupTable,
+        zlt: ZoneLookupTable,
-        guests: GuestStore,
+        zones: ZoneStore,
         events: DaemonEventContext,
         runtime: Runtime,
         packer: OciPackerService,
-        guest_reconciler_notify: Sender<Uuid>,
+        zone_reconciler_notify: Sender<Uuid>,
         kernel_path: PathBuf,
         initrd_path: PathBuf,
         modules_path: PathBuf,
     ) -> Result<Self> {
         Ok(Self {
             devices,
-            glt,
+            zlt,
-            guests,
+            zones,
             events,
             runtime,
             packer,
@@ -95,8 +95,8 @@ impl GuestReconciler {
             initrd_path,
             addons_path: modules_path,
             tasks: Arc::new(Mutex::new(HashMap::new())),
-            guest_reconciler_notify,
+            zone_reconciler_notify,
-            reconcile_lock: Arc::new(RwLock::with_max_readers((), PARALLEL_LIMIT)),
+            zone_reconcile_lock: Arc::new(RwLock::with_max_readers((), PARALLEL_LIMIT)),
         })
     }
 
@@ -115,13 +115,13 @@ impl GuestReconciler {
 
                         Some(uuid) => {
                             if let Err(error) = self.launch_task_if_needed(uuid).await {
-                                error!("failed to start guest reconciler task {}: {}", uuid, error);
+                                error!("failed to start zone reconciler task {}: {}", uuid, error);
                             }
 
                             let map = self.tasks.lock().await;
                             if let Some(entry) = map.get(&uuid) {
                                 if let Err(error) = entry.sender.send(()).await {
-                                    error!("failed to notify guest reconciler task {}: {}", uuid, error);
+                                    error!("failed to notify zone reconciler task {}: {}", uuid, error);
                                 }
                             }
                         }
@@ -138,52 +138,52 @@ impl GuestReconciler {
     }
 
     pub async fn reconcile_runtime(&self, initial: bool) -> Result<()> {
-        let _permit = self.reconcile_lock.write().await;
+        let _permit = self.zone_reconcile_lock.write().await;
         trace!("reconciling runtime");
-        let runtime_guests = self.runtime.list().await?;
+        let runtime_zones = self.runtime.list().await?;
-        let stored_guests = self.guests.list().await?;
+        let stored_zones = self.zones.list().await?;
 
-        let non_existent_guests = runtime_guests
+        let non_existent_zones = runtime_zones
             .iter()
-            .filter(|x| !stored_guests.iter().any(|g| *g.0 == x.uuid))
+            .filter(|x| !stored_zones.iter().any(|g| *g.0 == x.uuid))
             .collect::<Vec<_>>();
 
-        for guest in non_existent_guests {
+        for zone in non_existent_zones {
-            warn!("destroying unknown runtime guest {}", guest.uuid);
+            warn!("destroying unknown runtime zone {}", zone.uuid);
-            if let Err(error) = self.runtime.destroy(guest.uuid).await {
+            if let Err(error) = self.runtime.destroy(zone.uuid).await {
                 error!(
-                    "failed to destroy unknown runtime guest {}: {}",
+                    "failed to destroy unknown runtime zone {}: {}",
-                    guest.uuid, error
+                    zone.uuid, error
                 );
             }
-            self.guests.remove(guest.uuid).await?;
+            self.zones.remove(zone.uuid).await?;
         }
 
         let mut device_claims = HashMap::new();
 
-        for (uuid, mut stored_guest) in stored_guests {
+        for (uuid, mut stored_zone) in stored_zones {
-            let previous_guest = stored_guest.clone();
+            let previous_zone = stored_zone.clone();
-            let runtime_guest = runtime_guests.iter().find(|x| x.uuid == uuid);
+            let runtime_zone = runtime_zones.iter().find(|x| x.uuid == uuid);
-            match runtime_guest {
+            match runtime_zone {
                 None => {
-                    let mut state = stored_guest.state.as_mut().cloned().unwrap_or_default();
+                    let mut state = stored_zone.state.as_mut().cloned().unwrap_or_default();
-                    if state.status() == GuestStatus::Started {
+                    if state.status() == ZoneStatus::Started {
-                        state.status = GuestStatus::Starting.into();
+                        state.status = ZoneStatus::Starting.into();
                     }
-                    stored_guest.state = Some(state);
+                    stored_zone.state = Some(state);
                 }
 
                 Some(runtime) => {
-                    self.glt.associate(uuid, runtime.domid).await;
+                    self.zlt.associate(uuid, runtime.domid).await;
-                    let mut state = stored_guest.state.as_mut().cloned().unwrap_or_default();
+                    let mut state = stored_zone.state.as_mut().cloned().unwrap_or_default();
                     if let Some(code) = runtime.state.exit_code {
-                        state.status = GuestStatus::Exited.into();
+                        state.status = ZoneStatus::Exited.into();
-                        state.exit_info = Some(GuestExitInfo { code });
+                        state.exit_info = Some(ZoneExitInfo { code });
                     } else {
-                        state.status = GuestStatus::Started.into();
+                        state.status = ZoneStatus::Started.into();
                     }
 
-                    for device in &stored_guest
+                    for device in &stored_zone
                         .spec
                         .as_ref()
                         .cloned()
@@ -193,16 +193,16 @@ impl GuestReconciler {
                         device_claims.insert(device.name.clone(), uuid);
                     }
 
-                    state.network = Some(guestinfo_to_networkstate(runtime));
+                    state.network = Some(zoneinfo_to_networkstate(runtime));
-                    stored_guest.state = Some(state);
+                    stored_zone.state = Some(state);
                 }
             }
 
-            let changed = stored_guest != previous_guest;
+            let changed = stored_zone != previous_zone;
 
             if changed || initial {
-                self.guests.update(uuid, stored_guest).await?;
+                self.zones.update(uuid, stored_zone).await?;
-                let _ = self.guest_reconciler_notify.try_send(uuid);
+                let _ = self.zone_reconciler_notify.try_send(uuid);
             }
         }
 
@@ -212,59 +212,59 @@ impl GuestReconciler {
     }
 
     pub async fn reconcile(&self, uuid: Uuid) -> Result<bool> {
-        let _runtime_reconcile_permit = self.reconcile_lock.read().await;
+        let _runtime_reconcile_permit = self.zone_reconcile_lock.read().await;
-        let Some(mut guest) = self.guests.read(uuid).await? else {
+        let Some(mut zone) = self.zones.read(uuid).await? else {
             warn!(
-                "notified of reconcile for guest {} but it didn't exist",
+                "notified of reconcile for zone {} but it didn't exist",
                 uuid
             );
             return Ok(false);
         };
 
-        info!("reconciling guest {}", uuid);
+        info!("reconciling zone {}", uuid);
 
         self.events
-            .send(DaemonEvent::GuestChanged(GuestChangedEvent {
+            .send(DaemonEvent::ZoneChanged(ZoneChangedEvent {
-                guest: Some(guest.clone()),
+                zone: Some(zone.clone()),
             }))?;
 
-        let start_status = guest.state.as_ref().map(|x| x.status()).unwrap_or_default();
+        let start_status = zone.state.as_ref().map(|x| x.status()).unwrap_or_default();
         let result = match start_status {
-            GuestStatus::Starting => self.start(uuid, &mut guest).await,
+            ZoneStatus::Starting => self.start(uuid, &mut zone).await,
-            GuestStatus::Exited => self.exited(&mut guest).await,
+            ZoneStatus::Exited => self.exited(&mut zone).await,
-            GuestStatus::Destroying => self.destroy(uuid, &mut guest).await,
+            ZoneStatus::Destroying => self.destroy(uuid, &mut zone).await,
-            _ => Ok(GuestReconcilerResult::Unchanged),
+            _ => Ok(ZoneReconcilerResult::Unchanged),
         };
 
         let result = match result {
             Ok(result) => result,
             Err(error) => {
-                guest.state = Some(guest.state.as_mut().cloned().unwrap_or_default());
+                zone.state = Some(zone.state.as_mut().cloned().unwrap_or_default());
-                guest.state.as_mut().unwrap().status = GuestStatus::Failed.into();
+                zone.state.as_mut().unwrap().status = ZoneStatus::Failed.into();
-                guest.state.as_mut().unwrap().error_info = Some(GuestErrorInfo {
+                zone.state.as_mut().unwrap().error_info = Some(ZoneErrorInfo {
                     message: error.to_string(),
                 });
-                warn!("failed to start guest {}: {}", guest.id, error);
+                warn!("failed to start zone {}: {}", zone.id, error);
-                GuestReconcilerResult::Changed { rerun: false }
+                ZoneReconcilerResult::Changed { rerun: false }
             }
         };
 
-        info!("reconciled guest {}", uuid);
+        info!("reconciled zone {}", uuid);
 
-        let status = guest.state.as_ref().map(|x| x.status()).unwrap_or_default();
+        let status = zone.state.as_ref().map(|x| x.status()).unwrap_or_default();
-        let destroyed = status == GuestStatus::Destroyed;
+        let destroyed = status == ZoneStatus::Destroyed;
 
-        let rerun = if let GuestReconcilerResult::Changed { rerun } = result {
+        let rerun = if let ZoneReconcilerResult::Changed { rerun } = result {
-            let event = DaemonEvent::GuestChanged(GuestChangedEvent {
+            let event = DaemonEvent::ZoneChanged(ZoneChangedEvent {
-                guest: Some(guest.clone()),
+                zone: Some(zone.clone()),
             });
 
             if destroyed {
-                self.guests.remove(uuid).await?;
+                self.zones.remove(uuid).await?;
                 let mut map = self.tasks.lock().await;
                 map.remove(&uuid);
             } else {
-                self.guests.update(uuid, guest.clone()).await?;
+                self.zones.update(uuid, zone.clone()).await?;
             }
 
             self.events.send(event)?;
@@ -276,50 +276,50 @@ impl GuestReconciler {
         Ok(rerun)
     }
 
-    async fn start(&self, uuid: Uuid, guest: &mut Guest) -> Result<GuestReconcilerResult> {
+    async fn start(&self, uuid: Uuid, zone: &mut Zone) -> Result<ZoneReconcilerResult> {
-        let starter = GuestStarter {
+        let starter = ZoneStarter {
             devices: &self.devices,
             kernel_path: &self.kernel_path,
             initrd_path: &self.initrd_path,
             addons_path: &self.addons_path,
             packer: &self.packer,
-            glt: &self.glt,
+            glt: &self.zlt,
             runtime: &self.runtime,
         };
-        starter.start(uuid, guest).await
+        starter.start(uuid, zone).await
     }
 
-    async fn exited(&self, guest: &mut Guest) -> Result<GuestReconcilerResult> {
+    async fn exited(&self, zone: &mut Zone) -> Result<ZoneReconcilerResult> {
-        if let Some(ref mut state) = guest.state {
+        if let Some(ref mut state) = zone.state {
-            state.set_status(GuestStatus::Destroying);
+            state.set_status(ZoneStatus::Destroying);
-            Ok(GuestReconcilerResult::Changed { rerun: true })
+            Ok(ZoneReconcilerResult::Changed { rerun: true })
         } else {
-            Ok(GuestReconcilerResult::Unchanged)
+            Ok(ZoneReconcilerResult::Unchanged)
         }
     }
 
-    async fn destroy(&self, uuid: Uuid, guest: &mut Guest) -> Result<GuestReconcilerResult> {
+    async fn destroy(&self, uuid: Uuid, zone: &mut Zone) -> Result<ZoneReconcilerResult> {
         if let Err(error) = self.runtime.destroy(uuid).await {
-            trace!("failed to destroy runtime guest {}: {}", uuid, error);
+            trace!("failed to destroy runtime zone {}: {}", uuid, error);
         }
 
-        let domid = guest.state.as_ref().map(|x| x.domid);
+        let domid = zone.state.as_ref().map(|x| x.domid);
 
         if let Some(domid) = domid {
-            self.glt.remove(uuid, domid).await;
+            self.zlt.remove(uuid, domid).await;
         }
 
-        info!("destroyed guest {}", uuid);
+        info!("destroyed zone {}", uuid);
-        guest.state = Some(GuestState {
+        zone.state = Some(ZoneState {
-            status: GuestStatus::Destroyed.into(),
+            status: ZoneStatus::Destroyed.into(),
             network: None,
             exit_info: None,
             error_info: None,
-            host: self.glt.host_uuid().to_string(),
+            host: self.zlt.host_uuid().to_string(),
             domid: domid.unwrap_or(u32::MAX),
         });
         self.devices.release_all(uuid).await?;
-        Ok(GuestReconcilerResult::Changed { rerun: false })
+        Ok(ZoneReconcilerResult::Changed { rerun: false })
     }
 
     async fn launch_task_if_needed(&self, uuid: Uuid) -> Result<()> {
@@ -333,7 +333,7 @@ impl GuestReconciler {
         Ok(())
     }
 
-    async fn launch_task(&self, uuid: Uuid) -> Result<GuestReconcilerEntry> {
+    async fn launch_task(&self, uuid: Uuid) -> Result<ZoneReconcilerEntry> {
         let this = self.clone();
         let (sender, mut receiver) = channel(10);
         let task = tokio::task::spawn(async move {
@@ -346,7 +346,7 @@ impl GuestReconciler {
                     let rerun = match this.reconcile(uuid).await {
                         Ok(rerun) => rerun,
                         Err(error) => {
-                            error!("failed to reconcile guest {}: {}", uuid, error);
+                            error!("failed to reconcile zone {}: {}", uuid, error);
                             false
                         }
                     };
@@ -358,15 +358,15 @@ impl GuestReconciler {
                 }
             }
         });
-        Ok(GuestReconcilerEntry { task, sender })
+        Ok(ZoneReconcilerEntry { task, sender })
     }
 }
 
-pub fn guestinfo_to_networkstate(info: &GuestInfo) -> GuestNetworkState {
+pub fn zoneinfo_to_networkstate(info: &ZoneInfo) -> ZoneNetworkState {
-    GuestNetworkState {
+    ZoneNetworkState {
-        guest_ipv4: info.guest_ipv4.map(|x| x.to_string()).unwrap_or_default(),
+        zone_ipv4: info.zone_ipv4.map(|x| x.to_string()).unwrap_or_default(),
-        guest_ipv6: info.guest_ipv6.map(|x| x.to_string()).unwrap_or_default(),
+        zone_ipv6: info.zone_ipv6.map(|x| x.to_string()).unwrap_or_default(),
-        guest_mac: info.guest_mac.as_ref().cloned().unwrap_or_default(),
+        zone_mac: info.zone_mac.as_ref().cloned().unwrap_or_default(),
         gateway_ipv4: info.gateway_ipv4.map(|x| x.to_string()).unwrap_or_default(),
         gateway_ipv6: info.gateway_ipv6.map(|x| x.to_string()).unwrap_or_default(),
         gateway_mac: info.gateway_mac.as_ref().cloned().unwrap_or_default(),

crates/daemon/src/reconcile/zone/start.rs

@@ -6,40 +6,40 @@ use std::sync::atomic::{AtomicBool, Ordering};
 use anyhow::{anyhow, Result};
 use futures::StreamExt;
 use krata::launchcfg::LaunchPackedFormat;
-use krata::v1::common::GuestOciImageSpec;
+use krata::v1::common::ZoneOciImageSpec;
-use krata::v1::common::{guest_image_spec::Image, Guest, GuestState, GuestStatus, OciImageFormat};
+use krata::v1::common::{OciImageFormat, Zone, ZoneState, ZoneStatus};
 use krataoci::packer::{service::OciPackerService, OciPackedFormat};
 use kratart::launch::{PciBdf, PciDevice, PciRdmReservePolicy};
-use kratart::{launch::GuestLaunchRequest, Runtime};
+use kratart::{launch::ZoneLaunchRequest, Runtime};
 use log::info;
 
+use crate::config::DaemonPciDeviceRdmReservePolicy;
+use crate::devices::DaemonDeviceManager;
+use crate::{
+    reconcile::zone::{zoneinfo_to_networkstate, ZoneReconcilerResult},
+    zlt::ZoneLookupTable,
+};
+use krata::v1::common::zone_image_spec::Image;
 use tokio::fs::{self, File};
 use tokio::io::AsyncReadExt;
 use tokio_tar::Archive;
 use uuid::Uuid;
 
-use crate::config::DaemonPciDeviceRdmReservePolicy;
+pub struct ZoneStarter<'a> {
-use crate::devices::DaemonDeviceManager;
-use crate::{
-    glt::GuestLookupTable,
-    reconcile::guest::{guestinfo_to_networkstate, GuestReconcilerResult},
-};
-
-pub struct GuestStarter<'a> {
     pub devices: &'a DaemonDeviceManager,
     pub kernel_path: &'a Path,
     pub initrd_path: &'a Path,
     pub addons_path: &'a Path,
     pub packer: &'a OciPackerService,
-    pub glt: &'a GuestLookupTable,
+    pub glt: &'a ZoneLookupTable,
     pub runtime: &'a Runtime,
 }
 
-impl GuestStarter<'_> {
+impl ZoneStarter<'_> {
     pub async fn oci_spec_tar_read_file(
         &self,
         file: &Path,
-        oci: &GuestOciImageSpec,
+        oci: &ZoneOciImageSpec,
     ) -> Result<Vec<u8>> {
         if oci.format() != OciImageFormat::Tar {
             return Err(anyhow!(
@@ -75,9 +75,9 @@ impl GuestStarter<'_> {
         ))
     }
 
-    pub async fn start(&self, uuid: Uuid, guest: &mut Guest) -> Result<GuestReconcilerResult> {
+    pub async fn start(&self, uuid: Uuid, zone: &mut Zone) -> Result<ZoneReconcilerResult> {
-        let Some(ref spec) = guest.spec else {
+        let Some(ref spec) = zone.spec else {
-            return Err(anyhow!("guest spec not specified"));
+            return Err(anyhow!("zone spec not specified"));
         };
 
         let Some(ref image) = spec.image else {
@@ -100,7 +100,7 @@ impl GuestStarter<'_> {
                     OciImageFormat::Squashfs => OciPackedFormat::Squashfs,
                     OciImageFormat::Erofs => OciPackedFormat::Erofs,
                     OciImageFormat::Tar => {
-                        return Err(anyhow!("tar image format is not supported for guests"));
+                        return Err(anyhow!("tar image format is not supported for zones"));
                     }
                 },
             )
@@ -176,7 +176,7 @@ impl GuestStarter<'_> {
 
         let info = self
             .runtime
-            .launch(GuestLaunchRequest {
+            .launch(ZoneLaunchRequest {
                 format: LaunchPackedFormat::Squashfs,
                 uuid: Some(uuid),
                 name: if spec.name.is_empty() {
@@ -201,17 +201,17 @@ impl GuestStarter<'_> {
             })
             .await?;
         self.glt.associate(uuid, info.domid).await;
-        info!("started guest {}", uuid);
+        info!("started zone {}", uuid);
-        guest.state = Some(GuestState {
+        zone.state = Some(ZoneState {
-            status: GuestStatus::Started.into(),
+            status: ZoneStatus::Started.into(),
-            network: Some(guestinfo_to_networkstate(&info)),
+            network: Some(zoneinfo_to_networkstate(&info)),
             exit_info: None,
             error_info: None,
             host: self.glt.host_uuid().to_string(),
             domid: info.domid,
         });
         success.store(true, Ordering::Release);
-        Ok(GuestReconcilerResult::Changed { rerun: false })
+        Ok(ZoneReconcilerResult::Changed { rerun: false })
     }
 }
 

crates/daemon/src/zlt.rs

@@ -3,18 +3,18 @@ use std::{collections::HashMap, sync::Arc};
 use tokio::sync::RwLock;
 use uuid::Uuid;
 
-struct GuestLookupTableState {
+struct ZoneLookupTableState {
     domid_to_uuid: HashMap<u32, Uuid>,
     uuid_to_domid: HashMap<Uuid, u32>,
 }
 
-impl GuestLookupTableState {
+impl ZoneLookupTableState {
     pub fn new(host_uuid: Uuid) -> Self {
         let mut domid_to_uuid = HashMap::new();
         let mut uuid_to_domid = HashMap::new();
         domid_to_uuid.insert(0, host_uuid);
         uuid_to_domid.insert(host_uuid, 0);
-        GuestLookupTableState {
+        ZoneLookupTableState {
             domid_to_uuid,
             uuid_to_domid,
         }
@@ -22,18 +22,18 @@ impl GuestLookupTableState {
 }
 
 #[derive(Clone)]
-pub struct GuestLookupTable {
+pub struct ZoneLookupTable {
     host_domid: u32,
     host_uuid: Uuid,
-    state: Arc<RwLock<GuestLookupTableState>>,
+    state: Arc<RwLock<ZoneLookupTableState>>,
 }
 
-impl GuestLookupTable {
+impl ZoneLookupTable {
     pub fn new(host_domid: u32, host_uuid: Uuid) -> Self {
-        GuestLookupTable {
+        ZoneLookupTable {
             host_domid,
             host_uuid,
-            state: Arc::new(RwLock::new(GuestLookupTableState::new(host_uuid))),
+            state: Arc::new(RwLock::new(ZoneLookupTableState::new(host_uuid))),
         }
     }
 

crates/guest/bin/init.rs

@@ -1,30 +0,0 @@
-use anyhow::{anyhow, Result};
-use env_logger::Env;
-use krataguest::{death, init::GuestInit};
-use log::error;
-use std::env;
-
-#[tokio::main]
-async fn main() -> Result<()> {
-    env::set_var("RUST_BACKTRACE", "1");
-    env_logger::Builder::from_env(Env::default().default_filter_or("warn")).init();
-    if env::var("KRATA_UNSAFE_ALWAYS_ALLOW_INIT").unwrap_or("0".to_string()) != "1" {
-        let pid = std::process::id();
-        if pid > 3 {
-            return Err(anyhow!(
-                "not running because the pid of {} indicates this is probably not \
-                    the right context for the init daemon. \
-                        run with KRATA_UNSAFE_ALWAYS_ALLOW_INIT=1 to bypass this check",
-                pid
-            ));
-        }
-    }
-    let mut guest = GuestInit::new();
-    if let Err(error) = guest.init().await {
-        error!("failed to initialize guest: {}", error);
-        death(127).await?;
-        return Ok(());
-    }
-    death(1).await?;
-    Ok(())
-}

crates/krata/proto/krata/v1/common.proto

@@ -8,29 +8,29 @@ option java_outer_classname = "CommonProto";
 
 import "google/protobuf/struct.proto";
 
-message Guest {
+message Zone {
     string id = 1;
-    GuestSpec spec = 2;
+    ZoneSpec spec = 2;
-    GuestState state = 3;
+    ZoneState state = 3;
 }
 
-message GuestSpec {
+message ZoneSpec {
     string name = 1;
-    GuestImageSpec image = 2;
+    ZoneImageSpec image = 2;
     // If not specified, defaults to the daemon default kernel.
-    GuestImageSpec kernel = 3;
+    ZoneImageSpec kernel = 3;
     // If not specified, defaults to the daemon default initrd.
-    GuestImageSpec initrd = 4;
+    ZoneImageSpec initrd = 4;
     uint32 vcpus = 5;
     uint64 mem = 6;
-    GuestTaskSpec task = 7;
+    ZoneTaskSpec task = 7;
-    repeated GuestSpecAnnotation annotations = 8;
+    repeated ZoneSpecAnnotation annotations = 8;
-    repeated GuestSpecDevice devices = 9;
+    repeated ZoneSpecDevice devices = 9;
 }
 
-message GuestImageSpec {
+message ZoneImageSpec {
     oneof image {
-        GuestOciImageSpec oci = 1;
+        ZoneOciImageSpec oci = 1;
     }
 }
 
@@ -42,77 +42,77 @@ enum OciImageFormat {
     OCI_IMAGE_FORMAT_TAR = 3;
 }
 
-message GuestOciImageSpec {
+message ZoneOciImageSpec {
     string digest = 1;
     OciImageFormat format = 2;
 }
 
-message GuestTaskSpec {
+message ZoneTaskSpec {
-    repeated GuestTaskSpecEnvVar environment = 1;
+    repeated ZoneTaskSpecEnvVar environment = 1;
     repeated string command = 2;
     string working_directory = 3;
 }
 
-message GuestTaskSpecEnvVar {
+message ZoneTaskSpecEnvVar {
     string key = 1;
     string value = 2;
 }
 
-message GuestSpecAnnotation {
+message ZoneSpecAnnotation {
     string key = 1;
     string value = 2;
 }
 
-message GuestSpecDevice {
+message ZoneSpecDevice {
     string name = 1;
 }
 
-message GuestState {
+message ZoneState {
-    GuestStatus status = 1;
+    ZoneStatus status = 1;
-    GuestNetworkState network = 2;
+    ZoneNetworkState network = 2;
-    GuestExitInfo exit_info = 3;
+    ZoneExitInfo exit_info = 3;
-    GuestErrorInfo error_info = 4;
+    ZoneErrorInfo error_info = 4;
     string host = 5;
     uint32 domid = 6;
 }
 
-enum GuestStatus {
+enum ZoneStatus {
-    GUEST_STATUS_UNKNOWN = 0;
+    ZONE_STATUS_UNKNOWN = 0;
-    GUEST_STATUS_STARTING = 1;
+    ZONE_STATUS_STARTING = 1;
-    GUEST_STATUS_STARTED = 2;
+    ZONE_STATUS_STARTED = 2;
-    GUEST_STATUS_EXITED = 3;
+    ZONE_STATUS_EXITED = 3;
-    GUEST_STATUS_DESTROYING = 4;
+    ZONE_STATUS_DESTROYING = 4;
-    GUEST_STATUS_DESTROYED = 5;
+    ZONE_STATUS_DESTROYED = 5;
-    GUEST_STATUS_FAILED = 6;
+    ZONE_STATUS_FAILED = 6;
 }
 
-message GuestNetworkState {
+message ZoneNetworkState {
-    string guest_ipv4 = 1;
+    string zone_ipv4 = 1;
-    string guest_ipv6 = 2;
+    string zone_ipv6 = 2;
-    string guest_mac = 3;
+    string zone_mac = 3;
     string gateway_ipv4 = 4;
     string gateway_ipv6 = 5;
     string gateway_mac = 6;
 }
 
-message GuestExitInfo {
+message ZoneExitInfo {
     int32 code = 1;
 }
 
-message GuestErrorInfo {
+message ZoneErrorInfo {
     string message = 1;
 }
 
-message GuestMetricNode {
+message ZoneMetricNode {
     string name = 1;
     google.protobuf.Value value = 2;
-    GuestMetricFormat format = 3;
+    ZoneMetricFormat format = 3;
-    repeated GuestMetricNode children = 4;
+    repeated ZoneMetricNode children = 4;
 }
 
-enum GuestMetricFormat {
+enum ZoneMetricFormat {
-    GUEST_METRIC_FORMAT_UNKNOWN = 0;
+    ZONE_METRIC_FORMAT_UNKNOWN = 0;
-    GUEST_METRIC_FORMAT_BYTES = 1;
+    ZONE_METRIC_FORMAT_BYTES = 1;
-    GUEST_METRIC_FORMAT_INTEGER = 2;
+    ZONE_METRIC_FORMAT_INTEGER = 2;
-    GUEST_METRIC_FORMAT_DURATION_SECONDS = 3;
+    ZONE_METRIC_FORMAT_DURATION_SECONDS = 3;
 }

crates/krata/proto/krata/v1/control.proto

@@ -12,17 +12,17 @@ import "krata/v1/common.proto";
 service ControlService {
     rpc IdentifyHost(IdentifyHostRequest) returns (IdentifyHostReply);
 
-    rpc CreateGuest(CreateGuestRequest) returns (CreateGuestReply);
+    rpc CreateZone(CreateZoneRequest) returns (CreateZoneReply);
-    rpc DestroyGuest(DestroyGuestRequest) returns (DestroyGuestReply);
+    rpc DestroyZone(DestroyZoneRequest) returns (DestroyZoneReply);
-    rpc ResolveGuest(ResolveGuestRequest) returns (ResolveGuestReply);
+    rpc ResolveZone(ResolveZoneRequest) returns (ResolveZoneReply);
-    rpc ListGuests(ListGuestsRequest) returns (ListGuestsReply);
+    rpc ListZones(ListZonesRequest) returns (ListZonesReply);
     rpc ListDevices(ListDevicesRequest) returns (ListDevicesReply);
 
-    rpc ExecGuest(stream ExecGuestRequest) returns (stream ExecGuestReply);
+    rpc ExecZone(stream ExecZoneRequest) returns (stream ExecZoneReply);
+
+    rpc AttachZoneConsole(stream ZoneConsoleRequest) returns (stream ZoneConsoleReply);
+    rpc ReadZoneMetrics(ReadZoneMetricsRequest) returns (ReadZoneMetricsReply);
 
-    rpc ConsoleData(stream ConsoleDataRequest) returns (stream ConsoleDataReply);
-    rpc ReadGuestMetrics(ReadGuestMetricsRequest) returns (ReadGuestMetricsReply);
-    
     rpc SnoopIdm(SnoopIdmRequest) returns (stream SnoopIdmReply);
     rpc WatchEvents(WatchEventsRequest) returns (stream WatchEventsReply);
 
@@ -40,41 +40,41 @@ message IdentifyHostReply {
     string krata_version = 3;
 }
 
-message CreateGuestRequest {
+message CreateZoneRequest {
-    krata.v1.common.GuestSpec spec = 1;
+    krata.v1.common.ZoneSpec spec = 1;
 }
 
-message CreateGuestReply {
+message CreateZoneReply {
-    string guest_id = 1;
+    string Zone_id = 1;
 }
 
-message DestroyGuestRequest {
+message DestroyZoneRequest {
-    string guest_id = 1;
+    string Zone_id = 1;
 }
 
-message DestroyGuestReply {}
+message DestroyZoneReply {}
 
-message ResolveGuestRequest {
+message ResolveZoneRequest {
     string name = 1;
 }
 
-message ResolveGuestReply {
+message ResolveZoneReply {
-    krata.v1.common.Guest guest = 1;
+    krata.v1.common.Zone Zone = 1;
 }
 
-message ListGuestsRequest {}
+message ListZonesRequest {}
 
-message ListGuestsReply {
+message ListZonesReply {
-    repeated krata.v1.common.Guest guests = 1;
+    repeated krata.v1.common.Zone Zones = 1;
 }
 
-message ExecGuestRequest {
+message ExecZoneRequest {
-    string guest_id = 1;
+    string Zone_id = 1;
-    krata.v1.common.GuestTaskSpec task = 2;
+    krata.v1.common.ZoneTaskSpec task = 2;
     bytes data = 3;
 }
 
-message ExecGuestReply {
+message ExecZoneReply {
     bool exited = 1;
     string error = 2;
     int32 exit_code = 3;
@@ -82,12 +82,12 @@ message ExecGuestReply {
     bytes stderr = 5;
 }
 
-message ConsoleDataRequest {
+message ZoneConsoleRequest {
-    string guest_id = 1;
+    string Zone_id = 1;
     bytes data = 2;
 }
 
-message ConsoleDataReply {
+message ZoneConsoleReply {
     bytes data = 1;
 }
 
@@ -95,20 +95,20 @@ message WatchEventsRequest {}
 
 message WatchEventsReply {
     oneof event {
-        GuestChangedEvent guest_changed = 1;
+        ZoneChangedEvent Zone_changed = 1;
     }
 }
 
-message GuestChangedEvent {
+message ZoneChangedEvent {
-    krata.v1.common.Guest guest = 1;
+    krata.v1.common.Zone Zone = 1;
 }
 
-message ReadGuestMetricsRequest {
+message ReadZoneMetricsRequest {
-    string guest_id = 1;
+    string Zone_id = 1;
 }
 
-message ReadGuestMetricsReply {
+message ReadZoneMetricsReply {
-    krata.v1.common.GuestMetricNode root = 1;
+    krata.v1.common.ZoneMetricNode root = 1;
 }
 
 message SnoopIdmRequest {}

crates/network/src/autonet.rs

@@ -2,10 +2,10 @@ use anyhow::Result;
 use krata::{
     events::EventStream,
     v1::{
-        common::Guest,
+        common::Zone,
         control::{
             control_service_client::ControlServiceClient, watch_events_reply::Event,
-            ListGuestsRequest,
+            ListZonesRequest,
         },
     },
 };
@@ -33,7 +33,7 @@ pub struct NetworkSide {
 pub struct NetworkMetadata {
     pub domid: u32,
     pub uuid: Uuid,
-    pub guest: NetworkSide,
+    pub zone: NetworkSide,
     pub gateway: NetworkSide,
 }
 
@@ -60,23 +60,23 @@ impl AutoNetworkWatcher {
     }
 
     pub async fn read(&mut self) -> Result<Vec<NetworkMetadata>> {
-        let mut all_guests: HashMap<Uuid, Guest> = HashMap::new();
+        let mut all_zones: HashMap<Uuid, Zone> = HashMap::new();
-        for guest in self
+        for zone in self
             .control
-            .list_guests(ListGuestsRequest {})
+            .list_zones(ListZonesRequest {})
             .await?
             .into_inner()
-            .guests
+            .zones
         {
-            let Ok(uuid) = Uuid::from_str(&guest.id) else {
+            let Ok(uuid) = Uuid::from_str(&zone.id) else {
                 continue;
             };
-            all_guests.insert(uuid, guest);
+            all_zones.insert(uuid, zone);
         }
 
         let mut networks: Vec<NetworkMetadata> = Vec::new();
-        for (uuid, guest) in &all_guests {
+        for (uuid, zone) in &all_zones {
-            let Some(ref state) = guest.state else {
+            let Some(ref state) = zone.state else {
                 continue;
             };
 
@@ -88,15 +88,15 @@ impl AutoNetworkWatcher {
                 continue;
             };
 
-            let Ok(guest_ipv4_cidr) = Ipv4Cidr::from_str(&network.guest_ipv4) else {
+            let Ok(zone_ipv4_cidr) = Ipv4Cidr::from_str(&network.zone_ipv4) else {
                 continue;
             };
 
-            let Ok(guest_ipv6_cidr) = Ipv6Cidr::from_str(&network.guest_ipv6) else {
+            let Ok(zone_ipv6_cidr) = Ipv6Cidr::from_str(&network.zone_ipv6) else {
                 continue;
             };
 
-            let Ok(guest_mac) = EthernetAddress::from_str(&network.guest_mac) else {
+            let Ok(zone_mac) = EthernetAddress::from_str(&network.zone_mac) else {
                 continue;
             };
 
@@ -115,10 +115,10 @@ impl AutoNetworkWatcher {
             networks.push(NetworkMetadata {
                 domid: state.domid,
                 uuid: *uuid,
-                guest: NetworkSide {
+                zone: NetworkSide {
-                    ipv4: guest_ipv4_cidr,
+                    ipv4: zone_ipv4_cidr,
-                    ipv6: guest_ipv6_cidr,
+                    ipv6: zone_ipv6_cidr,
-                    mac: guest_mac,
+                    mac: zone_mac,
                 },
                 gateway: NetworkSide {
                     ipv4: gateway_ipv4_cidr,
@@ -175,7 +175,7 @@ impl AutoNetworkWatcher {
         loop {
             select! {
                 x = receiver.recv() => match x {
-                    Ok(Event::GuestChanged(_)) => {
+                    Ok(Event::ZoneChanged(_)) => {
                         break;
                     },
 

crates/network/src/backend.rs

@@ -54,11 +54,11 @@ impl NetworkStack<'_> {
         match what {
             NetworkStackSelect::Receive(Some(packet)) => {
                 if let Err(error) = self.bridge.to_bridge_sender.try_send(packet.clone()) {
-                    trace!("failed to send guest packet to bridge: {}", error);
+                    trace!("failed to send zone packet to bridge: {}", error);
                 }
 
                 if let Err(error) = self.nat.receive_sender.try_send(packet.clone()) {
-                    trace!("failed to send guest packet to nat: {}", error);
+                    trace!("failed to send zone packet to nat: {}", error);
                 }
 
                 self.udev.rx = Some(packet);
@@ -137,7 +137,7 @@ impl NetworkBackend {
                 .expect("failed to set ip addresses");
         });
         let sockets = SocketSet::new(vec![]);
-        let handle = self.bridge.join(self.metadata.guest.mac).await?;
+        let handle = self.bridge.join(self.metadata.zone.mac).await?;
         let kdev = AsyncRawSocketChannel::new(mtu, kdev)?;
         Ok(NetworkStack {
             tx: tx_receiver,
@@ -153,12 +153,12 @@ impl NetworkBackend {
     pub async fn launch(self) -> Result<JoinHandle<()>> {
         Ok(tokio::task::spawn(async move {
             info!(
-                "launched network backend for krata guest {}",
+                "launched network backend for krata zone {}",
                 self.metadata.uuid
             );
             if let Err(error) = self.run().await {
                 warn!(
-                    "network backend for krata guest {} failed: {}",
+                    "network backend for krata zone {} failed: {}",
                     self.metadata.uuid, error
                 );
             }
@@ -169,7 +169,7 @@ impl NetworkBackend {
 impl Drop for NetworkBackend {
     fn drop(&mut self) {
         info!(
-            "destroyed network backend for krata guest {}",
+            "destroyed network backend for krata zone {}",
             self.metadata.uuid
         );
     }

crates/network/src/lib.rs

@@ -7,7 +7,7 @@ use hbridge::HostBridge;
 use krata::{
     client::ControlClientProvider,
     dial::ControlDialAddress,
-    v1::{common::Guest, control::control_service_client::ControlServiceClient},
+    v1::{common::Zone, control::control_service_client::ControlServiceClient},
 };
 use log::warn;
 use tokio::{task::JoinHandle, time::sleep};
@@ -33,7 +33,7 @@ pub const EXTRA_MTU: usize = 20;
 
 pub struct NetworkService {
     pub control: ControlServiceClient<Channel>,
-    pub guests: HashMap<Uuid, Guest>,
+    pub zones: HashMap<Uuid, Zone>,
     pub backends: HashMap<Uuid, JoinHandle<()>>,
     pub bridge: VirtualBridge,
     pub hbridge: HostBridge,
@@ -47,7 +47,7 @@ impl NetworkService {
             HostBridge::new(HOST_BRIDGE_MTU + EXTRA_MTU, "krata0".to_string(), &bridge).await?;
         Ok(NetworkService {
             control,
-            guests: HashMap::new(),
+            zones: HashMap::new(),
             backends: HashMap::new(),
             bridge,
             hbridge,
@@ -99,7 +99,7 @@ impl NetworkService {
 
                 Err((metadata, error)) => {
                     warn!(
-                        "failed to launch network backend for krata guest {}: {}",
+                        "failed to launch network backend for krata zone {}: {}",
                         metadata.uuid, error
                     );
                     failed.push(metadata.uuid);

crates/runtime/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "krata-runtime"
-description = "Runtime for running guests on the krata isolation engine"
+description = "Runtime for managing zones on the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true

crates/runtime/src/ip.rs

@@ -99,23 +99,23 @@ impl IpVendor {
                 continue;
             };
             let assigned_ipv4 = store
-                .read_string(format!("{}/krata/network/guest/ipv4", dom_path))
+                .read_string(format!("{}/krata/network/zone/ipv4", dom_path))
                 .await?
                 .and_then(|x| Ipv4Network::from_str(&x).ok());
             let assigned_ipv6 = store
-                .read_string(format!("{}/krata/network/guest/ipv6", dom_path))
+                .read_string(format!("{}/krata/network/zone/ipv6", dom_path))
                 .await?
                 .and_then(|x| Ipv6Network::from_str(&x).ok());
 
             if let Some(existing_ipv4) = assigned_ipv4 {
                 if let Some(previous) = state.ipv4.insert(existing_ipv4.ip(), uuid) {
-                    error!("ipv4 conflict detected: guest {} owned {} but {} also claimed to own it, giving it to {}", previous, existing_ipv4.ip(), uuid, uuid);
+                    error!("ipv4 conflict detected: zone {} owned {} but {} also claimed to own it, giving it to {}", previous, existing_ipv4.ip(), uuid, uuid);
                 }
             }
 
             if let Some(existing_ipv6) = assigned_ipv6 {
                 if let Some(previous) = state.ipv6.insert(existing_ipv6.ip(), uuid) {
-                    error!("ipv6 conflict detected: guest {} owned {} but {} also claimed to own it, giving it to {}", previous, existing_ipv6.ip(), uuid, uuid);
+                    error!("ipv6 conflict detected: zone {} owned {} but {} also claimed to own it, giving it to {}", previous, existing_ipv6.ip(), uuid, uuid);
                 }
             }
         }
@@ -251,13 +251,13 @@ impl IpVendor {
         intermediate.ipv6.insert(self.gateway_ipv6, self.host_uuid);
         for (ipv4, uuid) in &state.pending_ipv4 {
             if let Some(previous) = intermediate.ipv4.insert(*ipv4, *uuid) {
-                error!("ipv4 conflict detected: guest {} owned (pending) {} but {} also claimed to own it, giving it to {}", previous, ipv4, uuid, uuid);
+                error!("ipv4 conflict detected: zone {} owned (pending) {} but {} also claimed to own it, giving it to {}", previous, ipv4, uuid, uuid);
             }
             intermediate.pending_ipv4.insert(*ipv4, *uuid);
         }
         for (ipv6, uuid) in &state.pending_ipv6 {
             if let Some(previous) = intermediate.ipv6.insert(*ipv6, *uuid) {
-                error!("ipv6 conflict detected: guest {} owned (pending) {} but {} also claimed to own it, giving it to {}", previous, ipv6, uuid, uuid);
+                error!("ipv6 conflict detected: zone {} owned (pending) {} but {} also claimed to own it, giving it to {}", previous, ipv6, uuid, uuid);
             }
             intermediate.pending_ipv6.insert(*ipv6, *uuid);
         }
@@ -271,16 +271,16 @@ impl IpVendor {
         domid: u32,
     ) -> Result<Option<IpAssignment>> {
         let dom_path = format!("/local/domain/{}", domid);
-        let Some(guest_ipv4) = self
+        let Some(zone_ipv4) = self
             .store
-            .read_string(format!("{}/krata/network/guest/ipv4", dom_path))
+            .read_string(format!("{}/krata/network/zone/ipv4", dom_path))
             .await?
         else {
             return Ok(None);
         };
-        let Some(guest_ipv6) = self
+        let Some(zone_ipv6) = self
             .store
-            .read_string(format!("{}/krata/network/guest/ipv6", dom_path))
+            .read_string(format!("{}/krata/network/zone/ipv6", dom_path))
             .await?
         else {
             return Ok(None);
@@ -300,10 +300,10 @@ impl IpVendor {
             return Ok(None);
         };
 
-        let Some(guest_ipv4) = Ipv4Network::from_str(&guest_ipv4).ok() else {
+        let Some(zone_ipv4) = Ipv4Network::from_str(&zone_ipv4).ok() else {
             return Ok(None);
         };
-        let Some(guest_ipv6) = Ipv6Network::from_str(&guest_ipv6).ok() else {
+        let Some(zone_ipv6) = Ipv6Network::from_str(&zone_ipv6).ok() else {
             return Ok(None);
         };
         let Some(gateway_ipv4) = Ipv4Network::from_str(&gateway_ipv4).ok() else {
@@ -315,10 +315,10 @@ impl IpVendor {
         Ok(Some(IpAssignment {
             vendor: self.clone(),
             uuid,
-            ipv4: guest_ipv4.ip(),
+            ipv4: zone_ipv4.ip(),
-            ipv4_prefix: guest_ipv4.prefix(),
+            ipv4_prefix: zone_ipv4.prefix(),
-            ipv6: guest_ipv6.ip(),
+            ipv6: zone_ipv6.ip(),
-            ipv6_prefix: guest_ipv6.prefix(),
+            ipv6_prefix: zone_ipv6.prefix(),
             gateway_ipv4: gateway_ipv4.ip(),
             gateway_ipv6: gateway_ipv6.ip(),
             committed: true,

crates/runtime/src/launch.rs

@@ -20,13 +20,13 @@ use xenplatform::domain::BaseDomainConfig;
 use crate::cfgblk::ConfigBlock;
 use crate::RuntimeContext;
 
-use super::{GuestInfo, GuestState};
+use super::{ZoneInfo, ZoneState};
 
 pub use xenclient::{
     pci::PciBdf, DomainPciDevice as PciDevice, DomainPciRdmReservePolicy as PciRdmReservePolicy,
 };
 
-pub struct GuestLaunchRequest {
+pub struct ZoneLaunchRequest {
     pub format: LaunchPackedFormat,
     pub kernel: Vec<u8>,
     pub initrd: Vec<u8>,
@@ -42,11 +42,11 @@ pub struct GuestLaunchRequest {
     pub addons_image: Option<PathBuf>,
 }
 
-pub struct GuestLauncher {
+pub struct ZoneLauncher {
     pub launch_semaphore: Arc<Semaphore>,
 }
 
-impl GuestLauncher {
+impl ZoneLauncher {
     pub fn new(launch_semaphore: Arc<Semaphore>) -> Result<Self> {
         Ok(Self { launch_semaphore })
     }
@@ -54,16 +54,16 @@ impl GuestLauncher {
     pub async fn launch(
         &mut self,
         context: &RuntimeContext,
-        request: GuestLaunchRequest,
+        request: ZoneLaunchRequest,
-    ) -> Result<GuestInfo> {
+    ) -> Result<ZoneInfo> {
         let uuid = request.uuid.unwrap_or_else(Uuid::new_v4);
         let xen_name = format!("krata-{uuid}");
         let mut gateway_mac = MacAddr6::random();
         gateway_mac.set_local(true);
         gateway_mac.set_multicast(false);
-        let mut container_mac = MacAddr6::random();
+        let mut zone_mac = MacAddr6::random();
-        container_mac.set_local(true);
+        zone_mac.set_local(true);
-        container_mac.set_multicast(false);
+        zone_mac.set_multicast(false);
 
         let _launch_permit = self.launch_semaphore.acquire().await?;
         let mut ip = context.ipvendor.assign(uuid).await?;
@@ -145,7 +145,7 @@ impl GuestLauncher {
         }
         let cmdline = cmdline_options.join(" ");
 
-        let guest_mac_string = container_mac.to_string().replace('-', ":");
+        let zone_mac_string = zone_mac.to_string().replace('-', ":");
         let gateway_mac_string = gateway_mac.to_string().replace('-', ":");
 
         let mut disks = vec![
@@ -191,16 +191,16 @@ impl GuestLauncher {
             ("krata/uuid".to_string(), uuid.to_string()),
             ("krata/loops".to_string(), loops.join(",")),
             (
-                "krata/network/guest/ipv4".to_string(),
+                "krata/network/zone/ipv4".to_string(),
                 format!("{}/{}", ip.ipv4, ip.ipv4_prefix),
             ),
             (
-                "krata/network/guest/ipv6".to_string(),
+                "krata/network/zone/ipv6".to_string(),
                 format!("{}/{}", ip.ipv6, ip.ipv6_prefix),
             ),
             (
-                "krata/network/guest/mac".to_string(),
+                "krata/network/zone/mac".to_string(),
-                guest_mac_string.clone(),
+                zone_mac_string.clone(),
             ),
             (
                 "krata/network/gateway/ipv4".to_string(),
@@ -240,7 +240,7 @@ impl GuestLauncher {
                 initialized: false,
             }],
             vifs: vec![DomainNetworkInterface {
-                mac: guest_mac_string.clone(),
+                mac: zone_mac_string.clone(),
                 mtu: 1500,
                 bridge: None,
                 script: None,
@@ -248,20 +248,20 @@ impl GuestLauncher {
             pcis: request.pcis.clone(),
             filesystems: vec![],
             extra_keys,
-            extra_rw_paths: vec!["krata/guest".to_string()],
+            extra_rw_paths: vec!["krata/zone".to_string()],
         };
         match context.xen.create(&config).await {
             Ok(created) => {
                 ip.commit().await?;
-                Ok(GuestInfo {
+                Ok(ZoneInfo {
                     name: request.name.as_ref().map(|x| x.to_string()),
                     uuid,
                     domid: created.domid,
                     image: request.image.digest,
                     loops: vec![],
-                    guest_ipv4: Some(IpNetwork::new(IpAddr::V4(ip.ipv4), ip.ipv4_prefix)?),
+                    zone_ipv4: Some(IpNetwork::new(IpAddr::V4(ip.ipv4), ip.ipv4_prefix)?),
-                    guest_ipv6: Some(IpNetwork::new(IpAddr::V6(ip.ipv6), ip.ipv6_prefix)?),
+                    zone_ipv6: Some(IpNetwork::new(IpAddr::V6(ip.ipv6), ip.ipv6_prefix)?),
-                    guest_mac: Some(guest_mac_string.clone()),
+                    zone_mac: Some(zone_mac_string.clone()),
                     gateway_ipv4: Some(IpNetwork::new(
                         IpAddr::V4(ip.gateway_ipv4),
                         ip.ipv4_prefix,
@@ -271,7 +271,7 @@ impl GuestLauncher {
                         ip.ipv6_prefix,
                     )?),
                     gateway_mac: Some(gateway_mac_string.clone()),
-                    state: GuestState { exit_code: None },
+                    state: ZoneState { exit_code: None },
                 })
             }
             Err(error) => {

crates/runtime/src/lib.rs

@@ -12,7 +12,7 @@ use xenstore::{XsdClient, XsdInterface};
 
 use self::{
     autoloop::AutoLoop,
-    launch::{GuestLaunchRequest, GuestLauncher},
+    launch::{ZoneLaunchRequest, ZoneLauncher},
     power::PowerManagementContext,
 };
 
@@ -29,29 +29,32 @@ type RuntimePlatform = xenplatform::x86pv::X86PvPlatform;
 #[cfg(not(target_arch = "x86_64"))]
 type RuntimePlatform = xenplatform::unsupported::UnsupportedPlatform;
 
-pub struct GuestLoopInfo {
+#[derive(Clone)]
+pub struct ZoneLoopInfo {
     pub device: String,
     pub file: String,
     pub delete: Option<String>,
 }
 
-pub struct GuestState {
+#[derive(Clone)]
+pub struct ZoneState {
     pub exit_code: Option<i32>,
 }
 
-pub struct GuestInfo {
+#[derive(Clone)]
+pub struct ZoneInfo {
     pub name: Option<String>,
     pub uuid: Uuid,
     pub domid: u32,
     pub image: String,
-    pub loops: Vec<GuestLoopInfo>,
+    pub loops: Vec<ZoneLoopInfo>,
-    pub guest_ipv4: Option<IpNetwork>,
+    pub zone_ipv4: Option<IpNetwork>,
-    pub guest_ipv6: Option<IpNetwork>,
+    pub zone_ipv6: Option<IpNetwork>,
-    pub guest_mac: Option<String>,
+    pub zone_mac: Option<String>,
     pub gateway_ipv4: Option<IpNetwork>,
     pub gateway_ipv6: Option<IpNetwork>,
     pub gateway_mac: Option<String>,
-    pub state: GuestState,
+    pub state: ZoneState,
 }
 
 #[derive(Clone)]
@@ -75,8 +78,8 @@ impl RuntimeContext {
         })
     }
 
-    pub async fn list(&self) -> Result<Vec<GuestInfo>> {
+    pub async fn list(&self) -> Result<Vec<ZoneInfo>> {
-        let mut guests: Vec<GuestInfo> = Vec::new();
+        let mut zones: Vec<ZoneInfo> = Vec::new();
         for domid_candidate in self.xen.store.list("/local/domain").await? {
             if domid_candidate == "0" {
                 continue;
@@ -112,20 +115,20 @@ impl RuntimeContext {
                 .store
                 .read_string(&format!("{}/krata/loops", &dom_path))
                 .await?;
-            let guest_ipv4 = self
+            let zone_ipv4 = self
                 .xen
                 .store
-                .read_string(&format!("{}/krata/network/guest/ipv4", &dom_path))
+                .read_string(&format!("{}/krata/network/zone/ipv4", &dom_path))
                 .await?;
-            let guest_ipv6 = self
+            let zone_ipv6 = self
                 .xen
                 .store
-                .read_string(&format!("{}/krata/network/guest/ipv6", &dom_path))
+                .read_string(&format!("{}/krata/network/zone/ipv6", &dom_path))
                 .await?;
-            let guest_mac = self
+            let zone_mac = self
                 .xen
                 .store
-                .read_string(&format!("{}/krata/network/guest/mac", &dom_path))
+                .read_string(&format!("{}/krata/network/zone/mac", &dom_path))
                 .await?;
             let gateway_ipv4 = self
                 .xen
@@ -143,14 +146,14 @@ impl RuntimeContext {
                 .read_string(&format!("{}/krata/network/gateway/mac", &dom_path))
                 .await?;
 
-            let guest_ipv4 = if let Some(guest_ipv4) = guest_ipv4 {
+            let zone_ipv4 = if let Some(zone_ipv4) = zone_ipv4 {
-                IpNetwork::from_str(&guest_ipv4).ok()
+                IpNetwork::from_str(&zone_ipv4).ok()
             } else {
                 None
             };
 
-            let guest_ipv6 = if let Some(guest_ipv6) = guest_ipv6 {
+            let zone_ipv6 = if let Some(zone_ipv6) = zone_ipv6 {
-                IpNetwork::from_str(&guest_ipv6).ok()
+                IpNetwork::from_str(&zone_ipv6).ok()
             } else {
                 None
             };
@@ -170,7 +173,7 @@ impl RuntimeContext {
             let exit_code = self
                 .xen
                 .store
-                .read_string(&format!("{}/krata/guest/exit-code", &dom_path))
+                .read_string(&format!("{}/krata/zone/exit-code", &dom_path))
                 .await?;
 
             let exit_code: Option<i32> = match exit_code {
@@ -178,37 +181,37 @@ impl RuntimeContext {
                 None => None,
             };
 
-            let state = GuestState { exit_code };
+            let state = ZoneState { exit_code };
 
             let loops = RuntimeContext::parse_loop_set(&loops);
-            guests.push(GuestInfo {
+            zones.push(ZoneInfo {
                 name,
                 uuid,
                 domid,
                 image,
                 loops,
-                guest_ipv4,
+                zone_ipv4,
-                guest_ipv6,
+                zone_ipv6,
-                guest_mac,
+                zone_mac,
                 gateway_ipv4,
                 gateway_ipv6,
                 gateway_mac,
                 state,
             });
         }
-        Ok(guests)
+        Ok(zones)
     }
 
-    pub async fn resolve(&self, uuid: Uuid) -> Result<Option<GuestInfo>> {
+    pub async fn resolve(&self, uuid: Uuid) -> Result<Option<ZoneInfo>> {
-        for guest in self.list().await? {
+        for zone in self.list().await? {
-            if guest.uuid == uuid {
+            if zone.uuid == uuid {
-                return Ok(Some(guest));
+                return Ok(Some(zone));
             }
         }
         Ok(None)
     }
 
-    fn parse_loop_set(input: &Option<String>) -> Vec<GuestLoopInfo> {
+    fn parse_loop_set(input: &Option<String>) -> Vec<ZoneLoopInfo> {
         let Some(input) = input else {
             return Vec::new();
         };
@@ -219,7 +222,7 @@ impl RuntimeContext {
             .map(|x| (x[0].clone(), x[1].clone(), x[2].clone()))
             .collect::<Vec<(String, String, String)>>();
         sets.iter()
-            .map(|(device, file, delete)| GuestLoopInfo {
+            .map(|(device, file, delete)| ZoneLoopInfo {
                 device: device.clone(),
                 file: file.clone(),
                 delete: if delete == "none" {
@@ -228,7 +231,7 @@ impl RuntimeContext {
                     Some(delete.clone())
                 },
             })
-            .collect::<Vec<GuestLoopInfo>>()
+            .collect::<Vec<ZoneLoopInfo>>()
     }
 }
 
@@ -249,8 +252,8 @@ impl Runtime {
         })
     }
 
-    pub async fn launch(&self, request: GuestLaunchRequest) -> Result<GuestInfo> {
+    pub async fn launch(&self, request: ZoneLaunchRequest) -> Result<ZoneInfo> {
-        let mut launcher = GuestLauncher::new(self.launch_semaphore.clone())?;
+        let mut launcher = ZoneLauncher::new(self.launch_semaphore.clone())?;
         launcher.launch(&self.context, request).await
     }
 
@@ -259,7 +262,7 @@ impl Runtime {
             .context
             .resolve(uuid)
             .await?
-            .ok_or_else(|| anyhow!("unable to resolve guest: {}", uuid))?;
+            .ok_or_else(|| anyhow!("unable to resolve zone: {}", uuid))?;
         let domid = info.domid;
         let store = XsdClient::open().await?;
         let dom_path = store.get_domain_path(domid).await?;
@@ -307,7 +310,7 @@ impl Runtime {
         if let Some(ip) = ip {
             if let Err(error) = self.context.ipvendor.recall(&ip).await {
                 error!(
-                    "failed to recall ip assignment for guest {}: {}",
+                    "failed to recall ip assignment for zone {}: {}",
                     uuid, error
                 );
             }
@@ -316,7 +319,7 @@ impl Runtime {
         Ok(uuid)
     }
 
-    pub async fn list(&self) -> Result<Vec<GuestInfo>> {
+    pub async fn list(&self) -> Result<Vec<ZoneInfo>> {
         self.context.list().await
     }
 

crates/runtime/src/power.rs

@@ -25,7 +25,7 @@ pub struct CpuTopologyInfo {
     pub class: CpuClass,
 }
 
-fn labelled_topo(input: &[SysctlCputopo]) -> Vec<CpuTopologyInfo> {
+fn labeled_topology(input: &[SysctlCputopo]) -> Vec<CpuTopologyInfo> {
     let mut cores: IndexMap<(u32, u32, u32), Vec<CpuTopologyInfo>> = IndexMap::new();
     let mut pe_cores = false;
     let mut last: Option<SysctlCputopo> = None;
@@ -140,9 +140,9 @@ impl PowerManagementContext {
     /// If there is a p-core/e-core split, then CPU class will be defined as
     /// `CpuClass::Performance` or `CpuClass::Efficiency`, else `CpuClass::Standard`.
     pub async fn cpu_topology(&self) -> Result<Vec<CpuTopologyInfo>> {
-        let xentopo = self.context.xen.call.cpu_topology().await?;
+        let xen_topology = self.context.xen.call.cpu_topology().await?;
-        let logicaltopo = labelled_topo(&xentopo);
+        let logical_topology = labeled_topology(&xen_topology);
-        Ok(logicaltopo)
+        Ok(logical_topology)
     }
 
     /// Enable or disable SMT awareness in the scheduler.

crates/zone/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "krata-guest"
+name = "krata-zone"
-description = "Guest services for the krata isolation engine"
+description = "zone services for the krata isolation engine"
 license.workspace = true
 version.workspace = true
 homepage.workspace = true
@@ -30,8 +30,8 @@ sysinfo = { workspace = true }
 tokio = { workspace = true }
 
 [lib]
-name = "krataguest"
+name = "kratazone"
 
 [[bin]]
-name = "krataguest"
+name = "krata-zone"
 path = "bin/init.rs"

crates/zone/bin/init.rs

@@ -0,0 +1,19 @@
+use anyhow::Result;
+use env_logger::Env;
+use kratazone::{death, init::ZoneInit};
+use log::error;
+use std::env;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env::set_var("RUST_BACKTRACE", "1");
+    env_logger::Builder::from_env(Env::default().default_filter_or("warn")).init();
+    let mut zone = ZoneInit::new();
+    if let Err(error) = zone.init().await {
+        error!("failed to initialize zone: {}", error);
+        death(127).await?;
+        return Ok(());
+    }
+    death(1).await?;
+    Ok(())
+}

crates/zone/src/background.rs

@@ -1,7 +1,7 @@
 use crate::{
     childwait::{ChildEvent, ChildWait},
     death,
-    exec::GuestExecTask,
+    exec::ZoneExecTask,
     metrics::MetricsCollector,
 };
 use anyhow::Result;
@@ -18,20 +18,16 @@ use log::debug;
 use nix::unistd::Pid;
 use tokio::{select, sync::broadcast};
 
-pub struct GuestBackground {
+pub struct ZoneBackground {
     idm: IdmInternalClient,
     child: Pid,
     _cgroup: Cgroup,
     wait: ChildWait,
 }
 
-impl GuestBackground {
+impl ZoneBackground {
-    pub async fn new(
+    pub async fn new(idm: IdmInternalClient, cgroup: Cgroup, child: Pid) -> Result<ZoneBackground> {
-        idm: IdmInternalClient,
+        Ok(ZoneBackground {
-        cgroup: Cgroup,
-        child: Pid,
-    ) -> Result<GuestBackground> {
-        Ok(GuestBackground {
             idm,
             child,
             _cgroup: cgroup,
@@ -134,7 +130,7 @@ impl GuestBackground {
     ) -> Result<()> {
         if let Some(RequestType::ExecStream(_)) = &handle.initial.request {
             tokio::task::spawn(async move {
-                let exec = GuestExecTask { handle };
+                let exec = ZoneExecTask { handle };
                 if let Err(error) = exec.run().await {
                     let _ = exec
                         .handle

crates/zone/src/exec.rs

@@ -15,11 +15,11 @@ use tokio::{
     process::Command,
 };
 
-pub struct GuestExecTask {
+pub struct ZoneExecTask {
     pub handle: IdmClientStreamResponseHandle<Request>,
 }
 
-impl GuestExecTask {
+impl ZoneExecTask {
     pub async fn run(&self) -> Result<()> {
         let mut receiver = self.handle.take().await?;
 

crates/zone/src/init.rs

@@ -26,7 +26,7 @@ use std::str::FromStr;
 use sys_mount::{FilesystemType, Mount, MountFlags};
 use tokio::fs;
 
-use crate::background::GuestBackground;
+use crate::background::ZoneBackground;
 
 const IMAGE_BLOCK_DEVICE_PATH: &str = "/dev/xvda";
 const CONFIG_BLOCK_DEVICE_PATH: &str = "/dev/xvdb";
@@ -57,17 +57,17 @@ const ADDONS_MODULES_PATH: &str = "/addons/modules";
 
 ioctl_write_int_bad!(set_controlling_terminal, TIOCSCTTY);
 
-pub struct GuestInit {}
+pub struct ZoneInit {}
 
-impl Default for GuestInit {
+impl Default for ZoneInit {
     fn default() -> Self {
         Self::new()
     }
 }
 
-impl GuestInit {
+impl ZoneInit {
-    pub fn new() -> GuestInit {
+    pub fn new() -> ZoneInit {
-        GuestInit {}
+        ZoneInit {}
     }
 
     pub async fn init(&mut self) -> Result<()> {
@@ -127,7 +127,7 @@ impl GuestInit {
         }
 
         if let Some(cfg) = config.config() {
-            trace!("running guest task");
+            trace!("running zone task");
             self.run(cfg, &launch, idm).await?;
         } else {
             return Err(anyhow!(
@@ -521,7 +521,7 @@ impl GuestInit {
 
         let mut env = HashMap::new();
         if let Some(config_env) = config.env() {
-            env.extend(GuestInit::env_map(config_env));
+            env.extend(ZoneInit::env_map(config_env));
         }
         env.extend(launch.env.clone());
         env.insert("KRATA_CONTAINER".to_string(), "1".to_string());
@@ -540,13 +540,13 @@ impl GuestInit {
             return Err(anyhow!("cannot get file name of command path as str"));
         };
         cmd.insert(0, file_name.to_string());
-        let env = GuestInit::env_list(env);
+        let env = ZoneInit::env_list(env);
 
-        trace!("running guest command: {}", cmd.join(" "));
+        trace!("running zone command: {}", cmd.join(" "));
 
         let path = CString::new(path.as_os_str().as_bytes())?;
-        let cmd = GuestInit::strings_as_cstrings(cmd)?;
+        let cmd = ZoneInit::strings_as_cstrings(cmd)?;
-        let env = GuestInit::strings_as_cstrings(env)?;
+        let env = ZoneInit::strings_as_cstrings(env)?;
         let mut working_dir = config
             .working_dir()
             .as_ref()
@@ -566,7 +566,7 @@ impl GuestInit {
     async fn init_cgroup(&self) -> Result<Cgroup> {
         trace!("initializing cgroup");
         let hierarchy = cgroups_rs::hierarchies::auto();
-        let cgroup = Cgroup::new(hierarchy, "krata-guest-task")?;
+        let cgroup = Cgroup::new(hierarchy, "krata-zone-task")?;
         cgroup.set_cgroup_type("threaded")?;
         trace!("initialized cgroup");
         Ok(cgroup)
@@ -619,7 +619,7 @@ impl GuestInit {
         cmd: Vec<CString>,
         env: Vec<CString>,
     ) -> Result<()> {
-        GuestInit::set_controlling_terminal()?;
+        ZoneInit::set_controlling_terminal()?;
         std::env::set_current_dir(working_dir)?;
         cgroup.add_task(CgroupPid::from(std::process::id() as u64))?;
         execve(&path, &cmd, &env)?;
@@ -640,7 +640,7 @@ impl GuestInit {
         cgroup: Cgroup,
         executed: Pid,
     ) -> Result<()> {
-        let mut background = GuestBackground::new(idm, cgroup, executed).await?;
+        let mut background = ZoneBackground::new(idm, cgroup, executed).await?;
         background.run().await?;
         Ok(())
     }

crates/zone/src/lib.rs

@@ -13,7 +13,7 @@ pub mod metrics;
 pub async fn death(code: c_int) -> Result<()> {
     let store = XsdClient::open().await?;
     store
-        .write_string("krata/guest/exit-code", &code.to_string())
+        .write_string("krata/zone/exit-code", &code.to_string())
         .await?;
     drop(store);
     loop {

crates/zone/src/metrics.rs

@@ -14,7 +14,7 @@ impl MetricsCollector {
     pub fn collect(&self) -> Result<MetricNode> {
         let mut sysinfo = sysinfo::System::new();
         Ok(MetricNode::structural(
-            "guest",
+            "zone",
             vec![
                 self.collect_system(&mut sysinfo)?,
                 self.collect_processes(&mut sysinfo)?,

hack/debug/common.sh

@@ -19,12 +19,12 @@ fi
 build_and_run() {
   EXE_TARGET="${1}"
   shift
-  sudo mkdir -p /var/lib/krata/guest
+  sudo mkdir -p /var/lib/krata/zone
   if [ "${KRATA_BUILD_INITRD}" = "1" ]
   then
     TARGET_ARCH="$(./hack/build/arch.sh)"
     ./hack/initrd/build.sh ${CARGO_BUILD_FLAGS}
-    sudo cp "target/initrd/initrd-${TARGET_ARCH}" "/var/lib/krata/guest/initrd"
+    sudo cp "target/initrd/initrd-${TARGET_ARCH}" "/var/lib/krata/zone/initrd"
   fi
   RUST_TARGET="$(./hack/build/target.sh)"
   ./hack/build/cargo.sh build ${CARGO_BUILD_FLAGS} --bin "${EXE_TARGET}"

hack/dist/systar.sh

@@ -38,9 +38,9 @@ else
   mv ../krata/kratad.service ../krata/kratanet.service usr/lib/systemd/system/
 fi
 
-mkdir -p usr/share/krata/guest
+mkdir -p usr/share/krata/zone
-mv ../krata/kernel ../krata/initrd usr/share/krata/guest
+mv ../krata/kernel ../krata/initrd usr/share/krata/zone
-mv ../krata/addons.squashfs usr/share/krata/guest/addons.squashfs
+mv ../krata/addons.squashfs usr/share/krata/zone/addons.squashfs
 
 tar czf "${SYSTAR}" --owner 0 --group 0 .
 

hack/initrd/build.sh

@@ -12,9 +12,9 @@ export TARGET_LIBC="musl"
 RUST_TARGET="$(./hack/build/target.sh)"
 export RUSTFLAGS="-Ctarget-feature=+crt-static"
 
-./hack/build/cargo.sh build "${@}" --release --bin krataguest
+./hack/build/cargo.sh build "${@}" --release --bin krata-zone
 INITRD_DIR="$(mktemp -d /tmp/krata-initrd.XXXXXXXXXXXXX)"
-cp "target/${RUST_TARGET}/release/krataguest" "${INITRD_DIR}/init"
+cp "target/${RUST_TARGET}/release/krata-zone" "${INITRD_DIR}/init"
 chmod +x "${INITRD_DIR}/init"
 cd "${INITRD_DIR}"
 mkdir -p "${KRATA_DIR}/target/initrd"

release-plz.toml

@@ -14,7 +14,7 @@ changelog_path = "./CHANGELOG.md"
 changelog_include = [
     "krata-daemon",
     "krata-ctl",
-    "krata-guest",
+    "krata-zone",
     "krata-network",
     "krata-runtime",
     "krata-oci",

resources/bundle/install.sh

@@ -30,9 +30,9 @@ chmod +x /usr/sbin/kratad
 chmod +x /usr/sbin/kratanet
 chmod +x /usr/bin/kratactl
 
-mkdir -p /var/lib/krata /usr/share/krata/guest
+mkdir -p /var/lib/krata /usr/share/krata/zone
-cp kernel /usr/share/krata/guest/kernel
+cp kernel /usr/share/krata/zone/kernel
-cp initrd /usr/share/krata/guest/initrd
+cp initrd /usr/share/krata/zone/initrd
 
 systemctl daemon-reload
 systemctl enable kratad.service kratanet.service