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hypha: init will now print the command from the image config

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This commit is contained in:
Alex Zenla
2024-01-22 02:26:43 -08:00
parent a412f6e823
commit 1980e870ba
1 changed files with 15 additions and 0 deletions
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15
hypha/src/container/init.rs
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@ -1,4 +1,5 @@
use crate::error::Result;
use oci_spec::image::ImageConfiguration;
use std::fs;
use std::path::Path;
use sys_mount::{FilesystemType, Mount, MountFlags};
@ -9,6 +10,8 @@ const CONFIG_BLOCK_DEVICE_PATH: &str = "/dev/xvdb";
const IMAGE_MOUNT_PATH: &str = "/image";
const CONFIG_MOUNT_PATH: &str = "/config";
const IMAGE_CONFIG_JSON_PATH: &str = "/config/image/config.json";
pub struct ContainerInit {}
impl Default for ContainerInit {
@ -24,6 +27,12 @@ impl ContainerInit {
pub fn init(&mut self) -> Result<()> {
self.prepare_mounts()?;
let config = self.parse_image_config()?;
if let Some(cfg) = config.config() {
if let Some(cmd) = cfg.cmd() {
println!("image command: {:?}", cmd);
}
}
Ok(())
}
@ -35,6 +44,12 @@ impl ContainerInit {
Ok(())
}
fn parse_image_config(&mut self) -> Result<ImageConfiguration> {
let image_config_path = Path::new(IMAGE_CONFIG_JSON_PATH);
let config = ImageConfiguration::from_file(image_config_path)?;
Ok(config)
}
fn mount_squashfs(&mut self, from: &Path, to: &Path) -> Result<()> {
if !to.is_dir() {
fs::create_dir(to)?;