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Diffstat (limited to 'internal/zfsutil/zfsutil.go')
| -rw-r--r-- | internal/zfsutil/zfsutil.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/internal/zfsutil/zfsutil.go b/internal/zfsutil/zfsutil.go index 8f1b0e2..918289c 100644 --- a/internal/zfsutil/zfsutil.go +++ b/internal/zfsutil/zfsutil.go @@ -33,6 +33,14 @@ func Rollback(ctx context.Context, out io.Writer, dataset, tag string) error { return sh.Run(ctx, out, "", "zfs", "rollback", "-r", snapRef(dataset, tag)) } +// DestroySnapshot removes a snapshot that was never needed as a rollback +// target - e.g. one taken right before an apply step that failed before +// anything actually changed. Left behind, it collides with the same tag on +// the next retry. +func DestroySnapshot(ctx context.Context, out io.Writer, dataset, tag string) error { + return sh.Run(ctx, out, "", "zfs", "destroy", snapRef(dataset, tag)) +} + // Snapshots lists snapshot names (without the dataset@ prefix), newest last. func Snapshots(ctx context.Context, dataset string) ([]string, error) { raw, err := sh.Output(ctx, "", "zfs", "list", "-H", "-t", "snapshot", "-o", "name", "-s", "creation", "-r", dataset) |