Merge pull request #14163 from mrjana/cnm_integ

Fix endpoint leave failure for --net=host mode

daemon/container_linux.go

@@ -1003,33 +1003,47 @@ func (container *Container) ReleaseNetwork() {
 		return
 	}
 
-	err := container.daemon.netController.LeaveAll(container.ID)
-	if err != nil {
-		logrus.Errorf("Leave all failed for  %s: %v", container.ID, err)
-		return
-	}
-
 	eid := container.NetworkSettings.EndpointID
 	nid := container.NetworkSettings.NetworkID
 
 	container.NetworkSettings = &network.Settings{}
 
-	// In addition to leaving all endpoints, delete implicitly created endpoint
+	if nid == "" || eid == "" {
-	if container.Config.PublishService == "" && eid != "" && nid != "" {
+		return
+	}
+
 	n, err := container.daemon.netController.NetworkByID(nid)
 	if err != nil {
 		logrus.Errorf("error locating network id %s: %v", nid, err)
 		return
 	}
+
 	ep, err := n.EndpointByID(eid)
 	if err != nil {
 		logrus.Errorf("error locating endpoint id %s: %v", eid, err)
 		return
 	}
+
+	switch {
+	case container.hostConfig.NetworkMode.IsHost():
+		if err := ep.Leave(container.ID); err != nil {
+			logrus.Errorf("Error leaving endpoint id %s for container %s: %v", eid, container.ID, err)
+			return
+		}
+	default:
+		if err := container.daemon.netController.LeaveAll(container.ID); err != nil {
+			logrus.Errorf("Leave all failed for  %s: %v", container.ID, err)
+			return
+		}
+	}
+
+	// In addition to leaving all endpoints, delete implicitly created endpoint
+	if container.Config.PublishService == "" {
 		if err := ep.Delete(); err != nil {
 			logrus.Errorf("deleting endpoint failed: %v", err)
 		}
 	}
+
 }
 
 func disableAllActiveLinks(container *Container) {

hack/vendor.sh

@@ -18,7 +18,7 @@ clone git golang.org/x/net 3cffabab72adf04f8e3b01c5baf775361837b5fe https://gith
 clone hg code.google.com/p/gosqlite 74691fb6f837
 
 #get libnetwork packages
-clone git github.com/docker/libnetwork 1aaf1047fd48345619a875184538a0eb6c6cfb2a
+clone git github.com/docker/libnetwork 82a1f5634904b57e619fd715ded6903727e00143
 clone git github.com/armon/go-metrics eb0af217e5e9747e41dd5303755356b62d28e3ec
 clone git github.com/hashicorp/go-msgpack 71c2886f5a673a35f909803f38ece5810165097b
 clone git github.com/hashicorp/memberlist 9a1e242e454d2443df330bdd51a436d5a9058fc4

integration-cli/docker_cli_run_test.go

@@ -2820,6 +2820,22 @@ func (s *DockerSuite) TestRunNetHost(c *check.C) {
 	}
 }
 
+func (s *DockerSuite) TestRunNetHostTwiceSameName(c *check.C) {
+	testRequires(c, SameHostDaemon)
+
+	cmd := exec.Command(dockerBinary, "run", "--rm", "--name=thost", "--net=host", "busybox", "true")
+	out2, _, err := runCommandWithOutput(cmd)
+	if err != nil {
+		c.Fatal(err, out2)
+	}
+
+	cmd = exec.Command(dockerBinary, "run", "--rm", "--name=thost", "--net=host", "busybox", "true")
+	out2, _, err = runCommandWithOutput(cmd)
+	if err != nil {
+		c.Fatal(err, out2)
+	}
+}
+
 func (s *DockerSuite) TestRunNetContainerWhichHost(c *check.C) {
 	testRequires(c, SameHostDaemon)
 

vendor/src/github.com/docker/libnetwork/etchosts/etchosts.go

@@ -68,6 +68,10 @@ func Build(path, IP, hostname, domainname string, extraContent []Record) error {
 
 // Add adds an arbitrary number of Records to an already existing /etc/hosts file
 func Add(path string, recs []Record) error {
+	if len(recs) == 0 {
+		return nil
+	}
+
 	f, err := os.Open(path)
 	if err != nil {
 		return err
@@ -91,6 +95,10 @@ func Add(path string, recs []Record) error {
 
 // Delete deletes an arbitrary number of Records already existing in /etc/hosts file
 func Delete(path string, recs []Record) error {
+	if len(recs) == 0 {
+		return nil
+	}
+
 	old, err := ioutil.ReadFile(path)
 	if err != nil {
 		return err

vendor/src/github.com/docker/libnetwork/network.go

@@ -416,6 +416,11 @@ func (n *network) updateSvcRecord(ep *endpoint, isAdd bool) {
 	}
 	n.Unlock()
 
+	// If there are no records to add or delete then simply return here
+	if len(recs) == 0 {
+		return
+	}
+
 	var epList []*endpoint
 	n.WalkEndpoints(func(e Endpoint) bool {
 		cEp := e.(*endpoint)