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kata-deploy: nydus: Always start from a clean state

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Clean up existing nydus-snapshotter state to ensure fresh start with new
version.

This is safe across all K8s distributions (k3s, rke2, k0s, microk8s,
etc.) because we only touch the nydus data directory, not containerd's
internals.

When containerd tries to use non-existent snapshots, it will
re-pull/re-unpack.

Signed-off-by: Fabiano Fidêncio <ffidencio@nvidia.com>
This commit is contained in:
Fabiano Fidêncio
2026-02-02 11:05:59 +01:00
parent d7ff54769c
commit 62ad0814c5
1 changed files with 16 additions and 0 deletions
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16
tools/packaging/kata-deploy/binary/src/artifacts/snapshotters.rs
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@@ -145,6 +145,22 @@ pub async fn install_nydus_snapshotter(config: &Config) -> Result<()> {
_ => "nydus-snapshotter".to_string(),
};
// Clean up existing nydus-snapshotter state to ensure fresh start with new version.
// This is safe across all K8s distributions (k3s, rke2, k0s, microk8s, etc.) because
// we only touch the nydus data directory, not containerd's internals.
// When containerd tries to use non-existent snapshots, it will re-pull/re-unpack.
let nydus_data_dir = format!("/host/var/lib/{nydus_snapshotter}");
info!("Cleaning up existing nydus-snapshotter state at {}", nydus_data_dir);
// Stop the service first if it exists (ignore errors if not running)
let _ = utils::host_systemctl(&["stop", &format!("{nydus_snapshotter}.service")]);
// Remove the data directory to clean up old snapshots with potentially incorrect labels
if Path::new(&nydus_data_dir).exists() {
info!("Removing nydus data directory: {}", nydus_data_dir);
fs::remove_dir_all(&nydus_data_dir).ok();
}
let config_guest_pulling = "/opt/kata-artifacts/nydus-snapshotter/config-guest-pulling.toml";
let nydus_snapshotter_service =
"/opt/kata-artifacts/nydus-snapshotter/nydus-snapshotter.service";