Merge pull request #25738 from wojtek-t/default_protobuf

Automatic merge from submit-queue

Use protobufs by default to communicate with apiserver (still store JSONs in etcd)

@lavalamp @kubernetes/sig-api-machinery

cmd/kube-controller-manager/app/options/options.go

@@ -82,6 +82,7 @@ func NewCMServer() *CMServer {
 					IncrementTimeoutHostPath: 30,
 				},
 			},
+			ContentType:             "application/vnd.kubernetes.protobuf",
 			KubeAPIQPS:              20.0,
 			KubeAPIBurst:            30,
 			LeaderElection:          leaderelection.DefaultLeaderElectionConfiguration(),
@@ -148,7 +149,7 @@ func (s *CMServer) AddFlags(fs *pflag.FlagSet) {
 	fs.StringVar(&s.Master, "master", s.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig)")
 	fs.StringVar(&s.Kubeconfig, "kubeconfig", s.Kubeconfig, "Path to kubeconfig file with authorization and master location information.")
 	fs.StringVar(&s.RootCAFile, "root-ca-file", s.RootCAFile, "If set, this root certificate authority will be included in service account's token secret. This must be a valid PEM-encoded CA bundle.")
-	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.")
+	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "Content type of requests sent to apiserver.")
 	fs.Float32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
 	fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
 	fs.DurationVar(&s.ControllerStartInterval.Duration, "controller-start-interval", s.ControllerStartInterval.Duration, "Interval between starting controller managers.")

cmd/kube-proxy/app/options/options.go

@@ -53,6 +53,7 @@ func NewProxyConfig() *ProxyServerConfig {
 	api.Scheme.Convert(&v1alpha1.KubeProxyConfiguration{}, &config)
 	return &ProxyServerConfig{
 		KubeProxyConfiguration: config,
+		ContentType:            "application/vnd.kubernetes.protobuf",
 		KubeAPIQPS:             5.0,
 		KubeAPIBurst:           10,
 		ConfigSyncPeriod:       15 * time.Minute,
@@ -78,7 +79,7 @@ func (s *ProxyServerConfig) AddFlags(fs *pflag.FlagSet) {
 	fs.BoolVar(&s.MasqueradeAll, "masquerade-all", s.MasqueradeAll, "If using the pure iptables proxy, SNAT everything")
 	fs.StringVar(&s.ClusterCIDR, "cluster-cidr", s.ClusterCIDR, "The CIDR range of pods in the cluster. It is used to bridge traffic coming from outside of the cluster. If not provided, no off-cluster bridging will be performed.")
 	fs.BoolVar(&s.CleanupAndExit, "cleanup-iptables", s.CleanupAndExit, "If true cleanup iptables rules and exit.")
-	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.")
+	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "Content type of requests sent to apiserver.")
 	fs.Float32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
 	fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
 	fs.DurationVar(&s.UDPIdleTimeout.Duration, "udp-timeout", s.UDPIdleTimeout.Duration, "How long an idle UDP connection will be kept open (e.g. '250ms', '2s').  Must be greater than 0. Only applicable for proxy-mode=userspace")

cmd/kubelet/app/options/options.go

@@ -136,6 +136,7 @@ func NewKubeletServer() *KubeletServer {
 			SyncFrequency:                    unversioned.Duration{Duration: 1 * time.Minute},
 			SystemCgroups:                    "",
 			ReconcileCIDR:                    true,
+			ContentType:                      "application/vnd.kubernetes.protobuf",
 			KubeAPIQPS:                       5.0,
 			KubeAPIBurst:                     10,
 			ExperimentalFlannelOverlay:       experimentalFlannelOverlay,
@@ -246,7 +247,7 @@ func (s *KubeletServer) AddFlags(fs *pflag.FlagSet) {
 	fs.Var(&s.SystemReserved, "system-reserved", "A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for non-kubernetes components. Currently only cpu and memory are supported. See http://releases.k8s.io/HEAD/docs/user-guide/compute-resources.md for more detail. [default=none]")
 	fs.Var(&s.KubeReserved, "kube-reserved", "A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for kubernetes system components. Currently only cpu and memory are supported. See http://releases.k8s.io/HEAD/docs/user-guide/compute-resources.md for more detail. [default=none]")
 	fs.BoolVar(&s.RegisterSchedulable, "register-schedulable", s.RegisterSchedulable, "Register the node as schedulable. No-op if register-node is false. [default=true]")
-	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.")
+	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "Content type of requests sent to apiserver.")
 	fs.Float32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
 	fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
 	fs.BoolVar(&s.SerializeImagePulls, "serialize-image-pulls", s.SerializeImagePulls, "Pull images one at a time. We recommend *not* changing the default value on nodes that run docker daemon with version < 1.9 or an Aufs storage backend. Issue #10959 has more details. [default=true]")

cmd/kubemark/hollow-node.go

@@ -61,7 +61,7 @@ func (c *HollowNodeConfig) addFlags(fs *pflag.FlagSet) {
 	fs.StringVar(&c.NodeName, "name", "fake-node", "Name of this Hollow Node.")
 	fs.IntVar(&c.ServerPort, "api-server-port", 443, "Port on which API server is listening.")
 	fs.StringVar(&c.Morph, "morph", "", fmt.Sprintf("Specifies into which Hollow component this binary should morph. Allowed values: %v", knownMorphs.List()))
-	fs.StringVar(&c.ContentType, "kube-api-content-type", "application/json", "ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.")
+	fs.StringVar(&c.ContentType, "kube-api-content-type", "application/vnd.kubernetes.protobuf", "ContentType of requests sent to apiserver.")
 }
 
 func (c *HollowNodeConfig) createClientFromFile() (*client.Client, error) {

docs/admin/kube-controller-manager.md

@@ -76,7 +76,7 @@ kube-controller-manager
       --google-json-key="": The Google Cloud Platform Service Account JSON Key to use for authentication.
       --horizontal-pod-autoscaler-sync-period=30s: The period for syncing the number of pods in horizontal pod autoscaler.
       --kube-api-burst=30: Burst to use while talking with kubernetes apiserver
-      --kube-api-content-type="": ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.
+      --kube-api-content-type="application/vnd.kubernetes.protobuf": Content type of requests sent to apiserver.
       --kube-api-qps=20: QPS to use while talking with kubernetes apiserver
       --kubeconfig="": Path to kubeconfig file with authorization and master location information.
       --leader-elect[=false]: Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability.
@@ -112,7 +112,7 @@ kube-controller-manager
       --terminated-pod-gc-threshold=12500: Number of terminated pods that can exist before the terminated pod garbage collector starts deleting terminated pods. If <= 0, the terminated pod garbage collector is disabled.
 ```
 
-###### Auto generated by spf13/cobra on 17-May-2016
+###### Auto generated by spf13/cobra on 21-May-2016
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->

docs/admin/kube-proxy.md

@@ -67,7 +67,7 @@ kube-proxy
       --iptables-masquerade-bit=14: If using the pure iptables proxy, the bit of the fwmark space to mark packets requiring SNAT with.  Must be within the range [0, 31].
       --iptables-sync-period=30s: How often iptables rules are refreshed (e.g. '5s', '1m', '2h22m').  Must be greater than 0.
       --kube-api-burst=10: Burst to use while talking with kubernetes apiserver
-      --kube-api-content-type="": ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.
+      --kube-api-content-type="application/vnd.kubernetes.protobuf": Content type of requests sent to apiserver.
       --kube-api-qps=5: QPS to use while talking with kubernetes apiserver
       --kubeconfig="": Path to kubeconfig file with authorization information (the master location is set by the master flag).
       --log-flush-frequency=5s: Maximum number of seconds between log flushes
@@ -79,7 +79,7 @@ kube-proxy
       --udp-timeout=250ms: How long an idle UDP connection will be kept open (e.g. '250ms', '2s').  Must be greater than 0. Only applicable for proxy-mode=userspace
 ```
 
-###### Auto generated by spf13/cobra on 21-Apr-2016
+###### Auto generated by spf13/cobra on 20-May-2016
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->

docs/admin/kube-scheduler.md

@@ -60,7 +60,7 @@ kube-scheduler
       --google-json-key="": The Google Cloud Platform Service Account JSON Key to use for authentication.
       --hard-pod-affinity-symmetric-weight=1: RequiredDuringScheduling affinity is not symmetric, but there is an implicit PreferredDuringScheduling affinity rule corresponding to every RequiredDuringScheduling affinity rule. --hard-pod-affinity-symmetric-weight represents the weight of implicit PreferredDuringScheduling affinity rule.
       --kube-api-burst=100: Burst to use while talking with kubernetes apiserver
-      --kube-api-content-type="": ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.
+      --kube-api-content-type="application/vnd.kubernetes.protobuf": Content type of requests sent to apiserver.
       --kube-api-qps=50: QPS to use while talking with kubernetes apiserver
       --kubeconfig="": Path to kubeconfig file with authorization and master location information.
       --leader-elect[=false]: Start a leader election client and gain leadership before executing the main loop. Enable this when running replicated components for high availability.
@@ -75,7 +75,7 @@ kube-scheduler
       --scheduler-name="default-scheduler": Name of the scheduler, used to select which pods will be processed by this scheduler, based on pod's annotation with key 'scheduler.alpha.kubernetes.io/name'
 ```
 
-###### Auto generated by spf13/cobra on 5-May-2016
+###### Auto generated by spf13/cobra on 20-May-2016
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->

docs/admin/kubelet.md

@@ -108,7 +108,7 @@ kubelet
       --image-gc-high-threshold=90: The percent of disk usage after which image garbage collection is always run. Default: 90%
       --image-gc-low-threshold=80: The percent of disk usage before which image garbage collection is never run. Lowest disk usage to garbage collect to. Default: 80%
       --kube-api-burst=10: Burst to use while talking with kubernetes apiserver
-      --kube-api-content-type="": ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.
+      --kube-api-content-type="application/vnd.kubernetes.protobuf": Content type of requests sent to apiserver.
       --kube-api-qps=5: QPS to use while talking with kubernetes apiserver
       --kube-reserved=: A set of ResourceName=ResourceQuantity (e.g. cpu=200m,memory=150G) pairs that describe resources reserved for kubernetes system components. Currently only cpu and memory are supported. See http://releases.k8s.io/HEAD/docs/user-guide/compute-resources.md for more detail. [default=none]
       --kubeconfig="/var/lib/kubelet/kubeconfig": Path to a kubeconfig file, specifying how to authenticate to API server (the master location is set by the api-servers flag).
@@ -160,7 +160,7 @@ kubelet
       --volume-stats-agg-period=1m0s: Specifies interval for kubelet to calculate and cache the volume disk usage for all pods and volumes.  To disable volume calculations, set to 0.  Default: '1m'
 ```
 
-###### Auto generated by spf13/cobra on 18-May-2016
+###### Auto generated by spf13/cobra on 21-May-2016
 
 
 <!-- BEGIN MUNGE: GENERATED_ANALYTICS -->

pkg/apis/componentconfig/v1alpha1/defaults.go

@@ -80,6 +80,9 @@ func SetDefaults_KubeSchedulerConfiguration(obj *KubeSchedulerConfiguration) {
 	if obj.AlgorithmProvider == "" {
 		obj.AlgorithmProvider = "DefaultProvider"
 	}
+	if obj.ContentType == "" {
+		obj.ContentType = "application/vnd.kubernetes.protobuf"
+	}
 	if obj.KubeAPIQPS == 0 {
 		obj.KubeAPIQPS = 50.0
 	}

plugin/cmd/kube-scheduler/app/options/options.go

@@ -63,7 +63,7 @@ func (s *SchedulerServer) AddFlags(fs *pflag.FlagSet) {
 	var unusedBindPodsBurst int32
 	fs.Int32Var(&unusedBindPodsBurst, "bind-pods-burst", 0, "unused, use --kube-api-burst")
 	fs.MarkDeprecated("bind-pods-burst", "flag is unused and will be removed. Use kube-api-burst instead.")
-	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "ContentType of requests sent to apiserver. Passing application/vnd.kubernetes.protobuf is an experimental feature now.")
+	fs.StringVar(&s.ContentType, "kube-api-content-type", s.ContentType, "Content type of requests sent to apiserver.")
 	fs.Float32Var(&s.KubeAPIQPS, "kube-api-qps", s.KubeAPIQPS, "QPS to use while talking with kubernetes apiserver")
 	fs.Int32Var(&s.KubeAPIBurst, "kube-api-burst", s.KubeAPIBurst, "Burst to use while talking with kubernetes apiserver")
 	fs.StringVar(&s.SchedulerName, "scheduler-name", s.SchedulerName, "Name of the scheduler, used to select which pods will be processed by this scheduler, based on pod's annotation with key 'scheduler.alpha.kubernetes.io/name'")