Add more checkpoint/restore information to 'inspect'

This adds the following information to the output of 'podman inspect':

 * CheckpointedAt - time the container was checkpointed
   Only set if the container has been checkpointed

 * RestoredAt - time the container was restored
   Only set if the container has been restored

 * CheckpointLog - path to the checkpoint log file (CRIU's dump.log)
   Only set if the log file exists (--keep)

 * RestoreLog - path to the restore log file (CRIU's restore.log)
   Only set if the log file exists (--keep)

 * CheckpointPath - path to the actual (CRIU) checkpoint files
   Only set if the checkpoint files exists (--keep)

 * Restored - set to true if the container has been restored
   Only set if the container has been restored

Signed-off-by: Adrian Reber <areber@redhat.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/libpod/container_internal_linux.go b/libpod/container_internal_linux.go
index f4b629a83..9e6ae9f02 100644
--- a/libpod/container_internal_linux.go
+++ b/libpod/container_internal_linux.go
@@ -1134,6 +1134,10 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
 		return nil, 0, err
 	}
 
+	// Setting CheckpointLog early in case there is a failure.
+	c.state.CheckpointLog = path.Join(c.bundlePath(), "dump.log")
+	c.state.CheckpointPath = c.CheckpointPath()
+
 	runtimeCheckpointDuration, err := c.ociRuntime.CheckpointContainer(c, options)
 	if err != nil {
 		return nil, 0, err
@@ -1169,6 +1173,9 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
 	if !options.KeepRunning && !options.PreCheckPoint {
 		c.state.State = define.ContainerStateStopped
 		c.state.Checkpointed = true
+		c.state.CheckpointedTime = time.Now()
+		c.state.Restored = false
+		c.state.RestoredTime = time.Time{}
 
 		// Cleanup Storage and Network
 		if err := c.cleanup(ctx); err != nil {
@@ -1216,6 +1223,8 @@ func (c *Container) checkpoint(ctx context.Context, options ContainerCheckpointO
 				logrus.Debugf("Unable to remove file %s", file)
 			}
 		}
+		// The file has been deleted. Do not mention it.
+		c.state.CheckpointLog = ""
 	}
 
 	c.state.FinishedTime = time.Now()
@@ -1293,6 +1302,10 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 		return nil, 0, err
 	}
 
+	// Setting RestoreLog early in case there is a failure.
+	c.state.RestoreLog = path.Join(c.bundlePath(), "restore.log")
+	c.state.CheckpointPath = c.CheckpointPath()
+
 	// Read network configuration from checkpoint
 	var netStatus map[string]types.StatusBlock
 	_, err := metadata.ReadJSONFile(&netStatus, c.bundlePath(), metadata.NetworkStatusFile)
@@ -1559,6 +1572,9 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 
 	c.state.State = define.ContainerStateRunning
 	c.state.Checkpointed = false
+	c.state.Restored = true
+	c.state.CheckpointedTime = time.Time{}
+	c.state.RestoredTime = time.Now()
 
 	if !options.Keep {
 		// Delete all checkpoint related files. At this point, in theory, all files
@@ -1569,6 +1585,7 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 		if err != nil {
 			logrus.Debugf("Non-fatal: removal of checkpoint directory (%s) failed: %v", c.CheckpointPath(), err)
 		}
+		c.state.CheckpointPath = ""
 		err = os.RemoveAll(c.PreCheckPointPath())
 		if err != nil {
 			logrus.Debugf("Non-fatal: removal of pre-checkpoint directory (%s) failed: %v", c.PreCheckPointPath(), err)
@@ -1589,6 +1606,8 @@ func (c *Container) restore(ctx context.Context, options ContainerCheckpointOpti
 				logrus.Debugf("Non-fatal: removal of checkpoint file (%s) failed: %v", file, err)
 			}
 		}
+		c.state.CheckpointLog = ""
+		c.state.RestoreLog = ""
 	}
 
 	return criuStatistics, runtimeRestoreDuration, c.save()