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-rw-r--r--runsc/sandbox/chroot.go2
-rw-r--r--runsc/sandbox/sandbox.go14
2 files changed, 12 insertions, 4 deletions
diff --git a/runsc/sandbox/chroot.go b/runsc/sandbox/chroot.go
index 749bf3782..30a4bae35 100644
--- a/runsc/sandbox/chroot.go
+++ b/runsc/sandbox/chroot.go
@@ -74,6 +74,8 @@ func setUpChroot() (string, error) {
// tearDownChroot unmounts /proc and /runsc from the chroot before deleting the
// directory.
func tearDownChroot(chroot string) error {
+ log.Debugf("Removing chroot mounts %q", chroot)
+
// Unmount /proc.
proc := filepath.Join(chroot, "proc")
if err := syscall.Unmount(proc, 0); err != nil {
diff --git a/runsc/sandbox/sandbox.go b/runsc/sandbox/sandbox.go
index 07a6bf388..67244c725 100644
--- a/runsc/sandbox/sandbox.go
+++ b/runsc/sandbox/sandbox.go
@@ -451,6 +451,7 @@ func (s *Sandbox) createSandboxProcess(spec *specs.Spec, conf *boot.Config, bund
if err != nil {
return fmt.Errorf("error setting up chroot: %v", err)
}
+ s.Chroot = chroot // Remember path so it can cleaned up.
cmd.SysProcAttr.Chroot = chroot
cmd.Args[0] = "/runsc"
cmd.Path = "/runsc"
@@ -549,9 +550,9 @@ func (s *Sandbox) IsRootContainer(cid string) bool {
return s.ID == cid
}
-// Destroy frees all resources associated with the sandbox.
-// Destroy returns error if any step fails, and the function can be safely retried.
-func (s *Sandbox) Destroy() error {
+// Destroy frees all resources associated with the sandbox. It fails fast and
+// is idempotent.
+func (s *Sandbox) destroy() error {
log.Debugf("Destroy sandbox %q", s.ID)
if s.Pid != 0 {
log.Debugf("Killing sandbox %q", s.ID)
@@ -674,7 +675,12 @@ func (s *Sandbox) Stacks() (string, error) {
func (s *Sandbox) DestroyContainer(cid string) error {
if s.IsRootContainer(cid) {
log.Debugf("Destroying root container %q by destroying sandbox", cid)
- return s.Destroy()
+ return s.destroy()
+ }
+
+ if !s.IsRunning() {
+ // Sandbox isn't running anymore, container is already destroyed.
+ return nil
}
log.Debugf("Destroying container %q in sandbox %q", cid, s.ID)