Merge pull request #11613 from dcbw/sdn-start-pod-manager-earlier

Merged by openshift-bot

Author: OpenShift Bot

images/dind/dind-setup.sh

@@ -42,4 +42,5 @@ function enable-overlay-storage() {
 }
 
 mount --make-shared /
+mount --make-shared /run
 enable-overlay-storage

pkg/sdn/plugin/cniserver/cniserver.go

@@ -12,6 +12,9 @@ import (
 
 	"github.com/golang/glog"
 	"github.com/gorilla/mux"
+
+	utilruntime "k8s.io/kubernetes/pkg/util/runtime"
+	utilwait "k8s.io/kubernetes/pkg/util/wait"
 )
 
 // *** The CNIServer is PRIVATE API between OpenShift SDN components and may be
@@ -141,7 +144,11 @@ func (s *CNIServer) Start(requestFunc cniRequestFunc) error {
 	}
 
 	s.SetKeepAlivesEnabled(false)
-	go s.Serve(l)
+	go utilwait.Forever(func() {
+		if err := s.Serve(l); err != nil {
+			utilruntime.HandleError(fmt.Errorf("CNI server Serve() failed: %v", err))
+		}
+	}, 0)
 	return nil
 }
 

pkg/sdn/plugin/controller.go

@@ -90,7 +90,7 @@ func (plugin *OsdnNode) alreadySetUp(localSubnetGatewayCIDR, clusterNetworkCIDR
 	}
 	found = false
 	for _, addr := range addrs {
-		if strings.Contains(addr, localSubnetGatewayCIDR+" ") {
+		if strings.Contains(addr, localSubnetGatewayCIDR) {
 			found = true
 			break
 		}

pkg/sdn/plugin/node.go

@@ -40,6 +40,7 @@ type OsdnNode struct {
 	localIP            string
 	hostName           string
 	podNetworkReady    chan struct{}
+	kubeletInitReady   chan struct{}
 	vnids              *nodeVNIDMap
 	iptablesSyncPeriod time.Duration
 	mtu                uint32
@@ -95,6 +96,7 @@ func NewNodePlugin(pluginName string, osClient *osclient.Client, kClient *kclien
 		hostName:           hostname,
 		vnids:              newNodeVNIDMap(),
 		podNetworkReady:    make(chan struct{}),
+		kubeletInitReady:   make(chan struct{}),
 		iptablesSyncPeriod: iptablesSyncPeriod,
 		mtu:                mtu,
 		egressPolicies:     make(map[uint32][]*osapi.EgressNetworkPolicy),
@@ -202,10 +204,18 @@ func (node *OsdnNode) Start() error {
 		}
 	}
 
+	log.V(5).Infof("Creating and initializing openshift-sdn pod manager")
 	node.podManager, err = newPodManager(node.host, node.multitenant, node.localSubnetCIDR, node.networkInfo, node.kClient, node.vnids, node.mtu)
 	if err != nil {
 		return err
 	}
+	if err := node.podManager.Start(cniserver.CNIServerSocketPath); err != nil {
+		return err
+	}
+
+	// Wait for kubelet to init the plugin so we get a knetwork.Host
+	log.V(5).Infof("Waiting for kubelet network plugin initialization")
+	<-node.kubeletInitReady
 
 	if networkChanged {
 		var pods []kapi.Pod
@@ -221,10 +231,7 @@ func (node *OsdnNode) Start() error {
 		}
 	}
 
-	if err := node.podManager.Start(cniserver.CNIServerSocketPath); err != nil {
-		return err
-	}
-
+	log.V(5).Infof("openshift-sdn network plugin ready")
 	node.markPodNetworkReady()
 
 	return nil

pkg/sdn/plugin/plugin.go

@@ -8,6 +8,8 @@ import (
 	knetwork "k8s.io/kubernetes/pkg/kubelet/network"
 	kcni "k8s.io/kubernetes/pkg/kubelet/network/cni"
 	utilsets "k8s.io/kubernetes/pkg/util/sets"
+
+	"github.com/golang/glog"
 )
 
 // This kubelet network plugin shim only exists to grab the knetwork.Host
@@ -22,7 +24,13 @@ func (node *OsdnNode) Init(host knetwork.Host, hairpinMode componentconfig.Hairp
 	node.host = host
 	node.kubeletCniPlugin = plugins[0]
 
-	return node.kubeletCniPlugin.Init(host, hairpinMode, nonMasqueradeCIDR, mtu)
+	err := node.kubeletCniPlugin.Init(host, hairpinMode, nonMasqueradeCIDR, mtu)
+
+	// Let initial pod updates happen if they need to
+	glog.V(5).Infof("openshift-sdn CNI plugin initialized")
+	close(node.kubeletInitReady)
+
+	return err
 }
 
 func (node *OsdnNode) Name() string {