diff options
Diffstat (limited to 'pkg/checkpoint/crutils')
| -rw-r--r-- | pkg/checkpoint/crutils/checkpoint_restore_utils.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/pkg/checkpoint/crutils/checkpoint_restore_utils.go b/pkg/checkpoint/crutils/checkpoint_restore_utils.go index 53ff55865..3b77368bb 100644 --- a/pkg/checkpoint/crutils/checkpoint_restore_utils.go +++ b/pkg/checkpoint/crutils/checkpoint_restore_utils.go @@ -1,6 +1,7 @@ package crutils import ( + "bytes" "io" "os" "os/exec" @@ -189,3 +190,13 @@ func CRRuntimeSupportsCheckpointRestore(runtimePath string) bool { } return false } + +// CRRuntimeSupportsCheckpointRestore tests if the runtime at 'runtimePath' +// supports restoring into existing Pods. The runtime needs to support +// the CRIU option --lsm-mount-context and the existence of this is checked +// by this function. In addition it is necessary to at least have CRIU 3.16. +func CRRuntimeSupportsPodCheckpointRestore(runtimePath string) bool { + cmd := exec.Command(runtimePath, "restore", "--lsm-mount-context") + out, _ := cmd.CombinedOutput() + return bytes.Contains(out, []byte("flag needs an argument")) +} |