diff options
| -rw-r--r-- | libpod/container_internal_linux.go | 19 | ||||
| -rw-r--r-- | libpod/oci.go | 13 | ||||
| -rw-r--r-- | test/e2e/checkpoint_test.go | 11 |
3 files changed, 38 insertions, 5 deletions
diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go index b074efa3a..0e9a5124e 100644 --- a/libpod/container_internal_linux.go +++ b/libpod/container_internal_linux.go @@ -472,10 +472,19 @@ func (c *Container) addNamespaceContainer(g *generate.Generator, ns LinuxNS, ctr return nil } -func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointOptions) (err error) { - +func (c *Container) checkpointRestoreSupported() (err error) { if !criu.CheckForCriu() { - return errors.Errorf("checkpointing a container requires at least CRIU %d", criu.MinCriuVersion) + return errors.Errorf("Checkpoint/Restore requires at least CRIU %d", criu.MinCriuVersion) + } + if !c.runtime.ociRuntime.featureCheckCheckpointing() { + return errors.Errorf("Configured runtime does not support checkpoint/restore") + } + return nil +} + +func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointOptions) (err error) { + if err := c.checkpointRestoreSupported(); err != nil { + return err } if c.state.State != ContainerStateRunning { @@ -532,8 +541,8 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO func (c *Container) restore(ctx context.Context, options ContainerCheckpointOptions) (err error) { - if !criu.CheckForCriu() { - return errors.Errorf("restoring a container requires at least CRIU %d", criu.MinCriuVersion) + if err := c.checkpointRestoreSupported(); err != nil { + return err } if (c.state.State != ContainerStateConfigured) && (c.state.State != ContainerStateExited) { diff --git a/libpod/oci.go b/libpod/oci.go index 4bf76f619..2b3cc5db5 100644 --- a/libpod/oci.go +++ b/libpod/oci.go @@ -898,3 +898,16 @@ func (r *OCIRuntime) checkpointContainer(ctr *Container, options ContainerCheckp args = append(args, ctr.ID()) return utils.ExecCmdWithStdStreams(os.Stdin, os.Stdout, os.Stderr, nil, r.path, args...) } + +func (r *OCIRuntime) featureCheckCheckpointing() bool { + // Check if the runtime implements checkpointing. Currently only + // runc's checkpoint/restore implementation is supported. + cmd := exec.Command(r.path, "checkpoint", "-h") + if err := cmd.Start(); err != nil { + return false + } + if err := cmd.Wait(); err == nil { + return true + } + return false +} diff --git a/test/e2e/checkpoint_test.go b/test/e2e/checkpoint_test.go index 11332708b..583432df1 100644 --- a/test/e2e/checkpoint_test.go +++ b/test/e2e/checkpoint_test.go @@ -6,6 +6,7 @@ import ( "fmt" "net" "os" + "os/exec" "github.com/containers/libpod/pkg/criu" . "github.com/containers/libpod/test/utils" @@ -27,6 +28,16 @@ var _ = Describe("Podman checkpoint", func() { } podmanTest = PodmanTestCreate(tempdir) podmanTest.RestoreAllArtifacts() + // Check if the runtime implements checkpointing. Currently only + // runc's checkpoint/restore implementation is supported. + cmd := exec.Command(podmanTest.OCIRuntime, "checkpoint", "-h") + if err := cmd.Start(); err != nil { + Skip("OCI runtime does not support checkpoint/restore") + } + if err := cmd.Wait(); err != nil { + Skip("OCI runtime does not support checkpoint/restore") + } + if !criu.CheckForCriu() { Skip("CRIU is missing or too old.") } |