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feat: oci compliance work (#85)

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* chore: rework oci crate to be more composable

* feat: image pull is now internally explicit

* feat: utilize vfs for assembling oci images

* feat: rework oci to preserve permissions via a vfs
This commit is contained in:
Alex Zenla
2024-04-15 10:24:14 -07:00
committed by GitHub
parent 24c71e9725
commit 89055ef77c
33 changed files with 1500 additions and 1164 deletions
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14
crates/runtime/src/cfgblk.rs
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@ -1,7 +1,7 @@
use anyhow::Result;
use backhand::{FilesystemWriter, NodeHeader};
use krata::launchcfg::LaunchInfo;
use krataoci::compiler::ImageInfo;
use krataoci::packer::OciImagePacked;
use log::trace;
use std::fs;
use std::fs::File;
@ -9,28 +9,24 @@ use std::path::PathBuf;
use uuid::Uuid;
pub struct ConfigBlock<'a> {
pub image_info: &'a ImageInfo,
pub image: &'a OciImagePacked,
pub file: PathBuf,
pub dir: PathBuf,
}
impl ConfigBlock<'_> {
pub fn new<'a>(uuid: &Uuid, image_info: &'a ImageInfo) -> Result<ConfigBlock<'a>> {
pub fn new<'a>(uuid: &Uuid, image: &'a OciImagePacked) -> Result<ConfigBlock<'a>> {
let mut dir = std::env::temp_dir().clone();
dir.push(format!("krata-cfg-{}", uuid));
fs::create_dir_all(&dir)?;
let mut file = dir.clone();
file.push("config.squashfs");
Ok(ConfigBlock {
image_info,
file,
dir,
})
Ok(ConfigBlock { image, file, dir })
}
pub fn build(&self, launch_config: &LaunchInfo) -> Result<()> {
trace!("build launch_config={:?}", launch_config);
let manifest = self.image_info.config.to_string()?;
let manifest = self.image.config.to_string()?;
let launch = serde_json::to_string(launch_config)?;
let mut writer = FilesystemWriter::default();
writer.push_dir(