Sending signals to containers prevents restart policy

Noticed this when testing some behavior with Docker.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

libpod/container_api.go

@@ -199,8 +199,15 @@ func (c *Container) Kill(signal uint) error {
 	if c.state.State != ContainerStateRunning {
 		return errors.Wrapf(ErrCtrStateInvalid, "can only kill running containers")
 	}
+
 	defer c.newContainerEvent(events.Kill)
-	return c.runtime.ociRuntime.killContainer(c, signal)
+	if err := c.runtime.ociRuntime.killContainer(c, signal); err != nil {
+		return err
+	}
+
+	c.state.StoppedByUser = true
+
+	return c.save()
 }
 
 // Exec starts a new process inside the container

libpod/pod_api.go

@@ -364,6 +364,13 @@ func (p *Pod) Kill(signal uint) (map[string]error, error) {
 		}
 
 		logrus.Debugf("Killed container %s with signal %d", ctr.ID(), signal)
+
+		ctr.state.StoppedByUser = true
+		if err := ctr.save(); err != nil {
+			ctrErrors[ctr.ID()] = err
+		}
+
+		ctr.lock.Unlock()
 	}
 
 	if len(ctrErrors) > 0 {