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more builder race condition; do restart if could not remove, and only go via container ID

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Signed-off-by: Avi Deitcher <avi@deitcher.net>
This commit is contained in:
Avi Deitcher 2025-06-25 20:39:32 +03:00
parent 5a13eda661
commit 86d7a47a7e
1 changed files with 18 additions and 4 deletions
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22
src/cmd/linuxkit/pkglib/docker.go
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@ -276,6 +276,7 @@ func (dr *dockerRunnerImpl) builderEnsureContainer(ctx context.Context, name, im
)
for range buildKitCheckRetryCount {
var b bytes.Buffer
var cid string
if err := dr.command(nil, &b, io.Discard, "--context", dockerContext, "container", "inspect", name); err == nil {
// we already have a container named "linuxkit-builder" in the provided context.
// get its state and config
@ -284,6 +285,7 @@ func (dr *dockerRunnerImpl) builderEnsureContainer(ctx context.Context, name, im
return nil, fmt.Errorf("unable to read results of 'container inspect %s': %v", name, err)
}
cid = containerJSON[0].ID
existingImage := containerJSON[0].Config.Image
isRunning := containerJSON[0].State.Status == "running"
@ -326,13 +328,25 @@ func (dr *dockerRunnerImpl) builderEnsureContainer(ctx context.Context, name, im
// if we made it here, we need to stop and remove the container, either because of a config mismatch,
// or because we received the CLI option
if stop {
if err := dr.command(nil, io.Discard, io.Discard, "--context", dockerContext, "container", "stop", name); err != nil {
return nil, fmt.Errorf("failed to stop existing container %s", name)
if cid == "" {
// we don't have a container ID, so we can't stop it
return nil, fmt.Errorf("unable to stop existing container %s, no ID found", name)
}
if err := dr.command(nil, io.Discard, io.Discard, "--context", dockerContext, "container", "stop", cid); err != nil {
// if we failed, do a retry; maybe it does not even exist anymore
time.Sleep(buildkitCheckInterval)
continue
}
}
if remove {
if err := dr.command(nil, io.Discard, io.Discard, "--context", dockerContext, "container", "rm", name); err != nil {
return nil, fmt.Errorf("failed to remove existing container %s", name)
if cid == "" {
// we don't have a container ID, so we can't remove it
return nil, fmt.Errorf("unable to remove existing container %s, no ID found", name)
}
if err := dr.command(nil, io.Discard, io.Discard, "--context", dockerContext, "container", "rm", cid); err != nil {
// if we failed, do a retry; maybe it does not even exist anymore
time.Sleep(buildkitCheckInterval)
continue
}
}
if recreate {