XPod: doStopPod: call removeFromSandbox with every p.containers

Some resource for containers needs to be released before p.sandbox.Shutdown.

Add this patch to call removeFromSandbox with every p.containers
before p.sandbox.Shutdown to release the resource.

Signed-off-by: Hui Zhu <teawater@hyper.sh>

Author: teawater

daemon/pod/decommission.go

@@ -382,6 +382,13 @@ func (p *XPod) doStopPod(graceful int) error {
 		return nil
 	}
 
+	for cid, c := range p.containers {
+		err = c.removeFromSandbox()
+		if err != nil {
+			c.Log(ERROR, "failed to remove %s from sandbox", cid)
+		}
+	}
+
 	p.Log(INFO, "stop container success, shutdown sandbox")
 	result := p.sandbox.Shutdown()
 	if result.IsSuccess() {