Add ContainerStateExited and OCI delete() in cleanup()

To work better with Kata containers, we need to delete() from the
OCI runtime as a part of cleanup, to ensure resources aren't
retained longer than they need to be.

To enable this, we need to add a new state to containers,
ContainerStateExited. Containers transition from
ContainerStateStopped to ContainerStateExited via cleanupRuntime
which is invoked as part of cleanup(). A container in the Exited
state is identical to Stopped, except it has been removed from
the OCI runtime and thus will be handled differently when
initializing the container.

Signed-off-by: Matthew Heon <matthew.heon@gmail.com>

4 files changed, 12 insertions, 5 deletions

diff --git a/cmd/podman/cleanup.go b/cmd/podman/cleanup.go
index 6ebb682ed..316704f91 100644
--- a/cmd/podman/cleanup.go
+++ b/cmd/podman/cleanup.go
@@ -46,6 +46,8 @@ func cleanupCmd(c *cli.Context) error {
 
 	args := c.Args()
 
+	ctx := getContext()
+
 	var lastError error
 	var cleanupContainers []*libpod.Container
 	if c.Bool("all") {
@@ -80,7 +82,7 @@ func cleanupCmd(c *cli.Context) error {
 		}
 	}
 	for _, ctr := range cleanupContainers {
-		if err = ctr.Cleanup(); err != nil {
+		if err = ctr.Cleanup(ctx); err != nil {
 			if lastError != nil {
 				fmt.Fprintln(os.Stderr, lastError)
 			}
diff --git a/cmd/podman/pod_stop.go b/cmd/podman/pod_stop.go
index 03d04a3ec..6dc6a2b2d 100644
--- a/cmd/podman/pod_stop.go
+++ b/cmd/podman/pod_stop.go
@@ -50,9 +50,11 @@ func podStopCmd(c *cli.Context) error {
 	// in which case the following loop will be skipped.
 	pods, lastError := getPodsFromContext(c, runtime)
 
+	ctx := getContext()
+
 	for _, pod := range pods {
 		// set cleanup to true to clean mounts and namespaces
-		ctr_errs, err := pod.Stop(true)
+		ctr_errs, err := pod.Stop(ctx, true)
 		if ctr_errs != nil {
 			for ctr, err := range ctr_errs {
 				if lastError != nil {
diff --git a/cmd/podman/run.go b/cmd/podman/run.go
index f9a96e4a6..fbad4237d 100644
--- a/cmd/podman/run.go
+++ b/cmd/podman/run.go
@@ -140,7 +140,7 @@ func runCmd(c *cli.Context) error {
 		return runtime.RemoveContainer(ctx, ctr, true)
 	}
 
-	if err := ctr.Cleanup(); err != nil {
+	if err := ctr.Cleanup(ctx); err != nil {
 		// If the container has been removed already, no need to error on cleanup
 		// Also, if it was restarted, don't error either
 		if errors.Cause(err) == libpod.ErrNoSuchCtr ||
diff --git a/cmd/podman/start.go b/cmd/podman/start.go
index cb65ec6d4..a34f6df5d 100644
--- a/cmd/podman/start.go
+++ b/cmd/podman/start.go
@@ -81,6 +81,9 @@ func startCmd(c *cli.Context) error {
 		}
 		args = append(args, lastCtr.ID())
 	}
+
+	ctx := getContext()
+
 	var lastError error
 	for _, container := range args {
 		ctr, err := runtime.LookupContainer(container)
@@ -121,14 +124,14 @@ func startCmd(c *cli.Context) error {
 				exitCode = int(ecode)
 			}
 
-			return ctr.Cleanup()
+			return ctr.Cleanup(ctx)
 		}
 		if ctrRunning {
 			fmt.Println(ctr.ID())
 			continue
 		}
 		// Handle non-attach start
-		if err := ctr.Start(getContext()); err != nil {
+		if err := ctr.Start(ctx); err != nil {
 			if lastError != nil {
 				fmt.Fprintln(os.Stderr, lastError)
 			}