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feat: oci tar format, bit-perfect disk storage for config and manifest, concurrent image pulls (#88)

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* oci: retain bit-perfect copies of manifest and config on disk

* feat: oci tar format support

* feat: concurrent image pulls
This commit is contained in:
Alex Zenla
2024-04-16 01:53:44 -07:00
committed by GitHub
parent 79f7742caa
commit e450ebd2a2
21 changed files with 493 additions and 144 deletions
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10
crates/runtime/src/cfgblk.rs
View File

@ -1,7 +1,7 @@
use anyhow::Result;
use backhand::{FilesystemWriter, NodeHeader};
use krata::launchcfg::LaunchInfo;
use krataoci::packer::OciImagePacked;
use krataoci::packer::OciPackedImage;
use log::trace;
use std::fs;
use std::fs::File;
@ -9,13 +9,13 @@ use std::path::PathBuf;
use uuid::Uuid;
pub struct ConfigBlock<'a> {
pub image: &'a OciImagePacked,
pub image: &'a OciPackedImage,
pub file: PathBuf,
pub dir: PathBuf,
}
impl ConfigBlock<'_> {
pub fn new<'a>(uuid: &Uuid, image: &'a OciImagePacked) -> Result<ConfigBlock<'a>> {
pub fn new<'a>(uuid: &Uuid, image: &'a OciPackedImage) -> Result<ConfigBlock<'a>> {
let mut dir = std::env::temp_dir().clone();
dir.push(format!("krata-cfg-{}", uuid));
fs::create_dir_all(&dir)?;
@ -26,7 +26,7 @@ impl ConfigBlock<'_> {
pub fn build(&self, launch_config: &LaunchInfo) -> Result<()> {
trace!("build launch_config={:?}", launch_config);
let manifest = self.image.config.to_string()?;
let config = self.image.config.raw();
let launch = serde_json::to_string(launch_config)?;
let mut writer = FilesystemWriter::default();
writer.push_dir(
@ -39,7 +39,7 @@ impl ConfigBlock<'_> {
},
)?;
writer.push_file(
manifest.as_bytes(),
config,
"/image/config.json",
NodeHeader {
permissions: 384,

4
crates/runtime/src/launch.rs
View File

@ -10,7 +10,7 @@ use krata::launchcfg::{
LaunchInfo, LaunchNetwork, LaunchNetworkIpv4, LaunchNetworkIpv6, LaunchNetworkResolver,
LaunchPackedFormat, LaunchRoot,
};
use krataoci::packer::OciImagePacked;
use krataoci::packer::OciPackedImage;
use tokio::sync::Semaphore;
use uuid::Uuid;
use xenclient::{DomainChannel, DomainConfig, DomainDisk, DomainNetworkInterface};
@ -30,7 +30,7 @@ pub struct GuestLaunchRequest {
pub env: HashMap<String, String>,
pub run: Option<Vec<String>>,
pub debug: bool,
pub image: OciImagePacked,
pub image: OciPackedImage,
}
pub struct GuestLauncher {