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sanitize names and add more comments, and other essential boilerplate changes

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This commit is contained in:
wlan0 2016-12-17 09:27:48 -08:00
parent 1e48fd18cb
commit 75da310757
12 changed files with 44 additions and 69 deletions
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3
cmd/cloud-controller-manager/BUILD
View File

@ -5,9 +5,6 @@ licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_binary(

7
cmd/cloud-controller-manager/app/BUILD
View File

@ -4,10 +4,7 @@ licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(
@ -17,8 +14,8 @@ go_library(
deps = [
"//cmd/cloud-controller-manager/app/options:go_default_library",
"//pkg/api/v1:go_default_library",
"//pkg/client/clientset_generated/release_1_5:go_default_library",
"//pkg/client/clientset_generated/release_1_5/typed/core/v1:go_default_library",
"//pkg/client/clientset_generated/clientset:go_default_library",
"//pkg/client/clientset_generated/clientset/typed/core/v1:go_default_library",
"//pkg/client/leaderelection:go_default_library",
"//pkg/client/leaderelection/resourcelock:go_default_library",
"//pkg/client/record:go_default_library",

44
cmd/cloud-controller-manager/app/controllermanager.go
View File

@ -14,12 +14,6 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
// Package app implements a server that runs a set of active
// components. This includes replication controllers, service endpoints and
// nodes.
//
// CAUTION: If you update code in this file, you may need to also update code
// in contrib/mesos/pkg/controllermanager/controllermanager.go
package app
import (
@ -33,8 +27,8 @@ import (
"k8s.io/kubernetes/cmd/cloud-controller-manager/app/options"
"k8s.io/kubernetes/pkg/api/v1"
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5"
v1core "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/typed/core/v1"
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
v1core "k8s.io/kubernetes/pkg/client/clientset_generated/clientset/typed/core/v1"
"k8s.io/kubernetes/pkg/client/leaderelection"
"k8s.io/kubernetes/pkg/client/leaderelection/resourcelock"
"k8s.io/kubernetes/pkg/client/record"
@ -61,20 +55,14 @@ const (
ControllerStartJitter = 1.0
)
// NewControllerManagerCommand creates a *cobra.Command object with default parameters
func NewControllerManagerCommand() *cobra.Command {
s := options.NewExternalCMServer()
// NewCloudControllerManagerCommand creates a *cobra.Command object with default parameters
func NewCloudControllerManagerCommand() *cobra.Command {
s := options.NewCloudControllerManagerServer()
s.AddFlags(pflag.CommandLine)
cmd := &cobra.Command{
Use: "cloud-controller-manager",
Long: `The Kubernetes controller manager is a daemon that embeds
the core control loops shipped with Kubernetes. In applications of robotics and
automation, a control loop is a non-terminating loop that regulates the state of
the system. In Kubernetes, a controller is a control loop that watches the shared
state of the cluster through the apiserver and makes changes attempting to move the
current state towards the desired state. Examples of controllers that ship with
Kubernetes today are the replication controller, endpoints controller, namespace
controller, and serviceaccounts controller.`,
Long: `The Cloud controller manager is a daemon that embeds
the cloud specific control loops shipped with Kubernetes.`,
Run: func(cmd *cobra.Command, args []string) {
},
}
@ -82,7 +70,8 @@ controller, and serviceaccounts controller.`,
return cmd
}
func ResyncPeriod(s *options.ExternalCMServer) func() time.Duration {
// ResyncPeriod computes the time interval a shared informer waits before resyncing with the api server
func ResyncPeriod(s *options.CloudControllerManagerServer) func() time.Duration {
return func() time.Duration {
factor := rand.Float64() + 1
return time.Duration(float64(s.MinResyncPeriod.Nanoseconds()) * factor)
@ -90,7 +79,7 @@ func ResyncPeriod(s *options.ExternalCMServer) func() time.Duration {
}
// Run runs the ExternalCMServer. This should never exit.
func Run(s *options.ExternalCMServer, cloud cloudprovider.Interface) error {
func Run(s *options.CloudControllerManagerServer, cloud cloudprovider.Interface) error {
if c, err := configz.New("componentconfig"); err == nil {
c.Set(s.KubeControllerManagerConfiguration)
} else {
@ -101,6 +90,7 @@ func Run(s *options.ExternalCMServer, cloud cloudprovider.Interface) error {
return err
}
// Set the ContentType of the requests from kube client
kubeconfig.ContentConfig.ContentType = s.ContentType
// Override kubeconfig qps/burst settings from flags
kubeconfig.QPS = s.KubeAPIQPS
@ -111,6 +101,7 @@ func Run(s *options.ExternalCMServer, cloud cloudprovider.Interface) error {
}
leaderElectionClient := clientset.NewForConfigOrDie(restclient.AddUserAgent(kubeconfig, "leader-election"))
// Start the external controller manager server
go func() {
mux := http.NewServeMux()
healthz.InstallHandler(mux)
@ -159,12 +150,13 @@ func Run(s *options.ExternalCMServer, cloud cloudprovider.Interface) error {
panic("unreachable")
}
// Identity used to distinguish between multiple cloud controller manager instances
id, err := os.Hostname()
if err != nil {
return err
}
// TODO: enable other lock types
// Lock required for leader election
rl := resourcelock.EndpointsLock{
EndpointsMeta: v1.ObjectMeta{
Namespace: "kube-system",
@ -177,6 +169,7 @@ func Run(s *options.ExternalCMServer, cloud cloudprovider.Interface) error {
},
}
// Try and become the leader and start cloud controller manager loops
leaderelection.RunOrDie(leaderelection.LeaderElectionConfig{
Lock: &rl,
LeaseDuration: s.LeaderElection.LeaseDuration.Duration,
@ -192,7 +185,9 @@ func Run(s *options.ExternalCMServer, cloud cloudprovider.Interface) error {
panic("unreachable")
}
func StartControllers(s *options.ExternalCMServer, kubeconfig *restclient.Config, rootClientBuilder, clientBuilder controller.ControllerClientBuilder, stop <-chan struct{}, recorder record.EventRecorder, cloud cloudprovider.Interface) error {
// StartControllers starts the cloud specific controller loops.
func StartControllers(s *options.CloudControllerManagerServer, kubeconfig *restclient.Config, rootClientBuilder, clientBuilder controller.ControllerClientBuilder, stop <-chan struct{}, recorder record.EventRecorder, cloud cloudprovider.Interface) error {
// Function to build the kube client object
client := func(serviceAccountName string) clientset.Interface {
return rootClientBuilder.ClientOrDie(serviceAccountName)
}
@ -203,6 +198,7 @@ func StartControllers(s *options.ExternalCMServer, kubeconfig *restclient.Config
glog.Warningf("Unsuccessful parsing of cluster CIDR %v: %v", s.ClusterCIDR, err)
}
// Start the CloudNodeController
nodeController, err := nodecontroller.NewCloudNodeController(
sharedInformers.Nodes(),
client("cloud-node-controller"), cloud,
@ -213,6 +209,7 @@ func StartControllers(s *options.ExternalCMServer, kubeconfig *restclient.Config
nodeController.Run()
time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
// Start the service controller
serviceController, err := servicecontroller.New(cloud, client("service-controller"), s.ClusterName)
if err != nil {
glog.Errorf("Failed to start service controller: %v", err)
@ -221,6 +218,7 @@ func StartControllers(s *options.ExternalCMServer, kubeconfig *restclient.Config
}
time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
// If CIDRs should be allocated for pods and set on the CloudProvider, then start the route controller
if s.AllocateNodeCIDRs && s.ConfigureCloudRoutes {
if routes, ok := cloud.Routes(); !ok {
glog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.")

3
cmd/cloud-controller-manager/app/options/BUILD
View File

@ -4,10 +4,7 @@ licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(

25
cmd/cloud-controller-manager/app/options/options.go
View File

@ -14,10 +14,6 @@ See the License for the specific language governing permissions and
limitations under the License.
*/
// Package options provides the flags used for the controller manager.
//
// CAUTION: If you update code in this file, you may need to also update code
// in contrib/mesos/pkg/controllermanager/controllermanager.go
package options
import (
@ -32,23 +28,22 @@ import (
"github.com/spf13/pflag"
)
// ExternalCMServer is the main context object for the controller manager.
type ExternalCMServer struct {
// CloudControllerMangerServer is the main context object for the controller manager.
type CloudControllerManagerServer struct {
componentconfig.KubeControllerManagerConfiguration
Master string
Kubeconfig string
}
// NewCMServer creates a new ExternalCMServer with a default config.
func NewExternalCMServer() *ExternalCMServer {
s := ExternalCMServer{
// NewCloudControllerManagerServer creates a new ExternalCMServer with a default config.
func NewCloudControllerManagerServer() *CloudControllerManagerServer {
s := CloudControllerManagerServer{
KubeControllerManagerConfiguration: componentconfig.KubeControllerManagerConfiguration{
Port: ports.ControllerManagerPort,
Port: ports.CloudControllerManagerPort,
Address: "0.0.0.0",
ConcurrentServiceSyncs: 1,
MinResyncPeriod: metav1.Duration{Duration: 12 * time.Hour},
RegisterRetryCount: 10,
NodeMonitorPeriod: metav1.Duration{Duration: 5 * time.Second},
ClusterName: "kubernetes",
ConfigureCloudRoutes: true,
@ -57,10 +52,6 @@ func NewExternalCMServer() *ExternalCMServer {
KubeAPIBurst: 30,
LeaderElection: leaderelection.DefaultLeaderElectionConfiguration(),
ControllerStartInterval: metav1.Duration{Duration: 0 * time.Second},
EnableGarbageCollector: true,
ConcurrentGCSyncs: 20,
ClusterSigningCertFile: "/etc/kubernetes/ca/ca.pem",
ClusterSigningKeyFile: "/etc/kubernetes/ca/ca.key",
},
}
s.LeaderElection.LeaderElect = true
@ -68,8 +59,8 @@ func NewExternalCMServer() *ExternalCMServer {
}
// AddFlags adds flags for a specific ExternalCMServer to the specified FlagSet
func (s *ExternalCMServer) AddFlags(fs *pflag.FlagSet) {
fs.Int32Var(&s.Port, "port", s.Port, "The port that the controller-manager's http service runs on")
func (s *CloudControllerManagerServer) AddFlags(fs *pflag.FlagSet) {
fs.Int32Var(&s.Port, "port", s.Port, "The port that the cloud-controller-manager's http service runs on")
fs.Var(componentconfig.IPVar{Val: &s.Address}, "address", "The IP address to serve on (set to 0.0.0.0 for all interfaces)")
fs.StringVar(&s.CloudProvider, "cloud-provider", s.CloudProvider, "The provider of cloud services. Empty for no provider.")
fs.StringVar(&s.CloudConfigFile, "cloud-config", s.CloudConfigFile, "The path to the cloud provider configuration file. Empty string for no configuration file.")

4
cmd/cloud-controller-manager/controller-manager.go
View File

@ -15,7 +15,7 @@ limitations under the License.
*/
// The external controller manager is responsible for running controller loops that
// are cloud provider dependent. It uses the API to listen for new events on resources.
// are cloud provider dependent. It uses the API to listen to new events on resources.
package main
@ -43,7 +43,7 @@ func init() {
}
func main() {
s := options.NewExternalCMServer()
s := options.NewCloudControllerManagerServer()
s.AddFlags(pflag.CommandLine)
flag.InitFlags()

4
cmd/kube-controller-manager/app/controllermanager.go
View File

@ -378,9 +378,7 @@ func StartControllers(controllers map[string]InitFunc, s *options.CMServer, root
time.Sleep(wait.Jitter(s.ControllerStartInterval.Duration, ControllerStartJitter))
if s.AllocateNodeCIDRs && s.ConfigureCloudRoutes {
if s.CloudProvider == "external" {
glog.Warning("configure-cloud-routes is set, but external cloudprovider is specified. This manager will not configure cloud provider routes.")
} else if cloud == nil {
if cloud == nil {
glog.Warning("configure-cloud-routes is set, but no cloud provider specified. Will not configure cloud provider routes.")
} else if routes, ok := cloud.Routes(); !ok {
glog.Warning("configure-cloud-routes is set, but cloud provider does not support routes. Will not configure cloud provider routes.")

5
pkg/cloudprovider/plugins.go
View File

@ -90,11 +90,6 @@ func InitCloudProvider(name string, configFilePath string) (Interface, error) {
var cloud Interface
var err error
if name == "external" {
glog.Info("cloud provider external specified.")
return nil, nil
}
if name == "" {
glog.Info("No cloud provider specified.")
return nil, nil

8
pkg/controller/cloud/BUILD
View File

@ -4,10 +4,8 @@ licenses(["notice"])
load(
"@io_bazel_rules_go//go:def.bzl",
"go_binary",
"go_library",
"go_test",
"cgo_library",
)
go_library(
@ -17,8 +15,8 @@ go_library(
deps = [
"//pkg/api/v1:go_default_library",
"//pkg/apis/meta/v1:go_default_library",
"//pkg/client/clientset_generated/release_1_5:go_default_library",
"//pkg/client/clientset_generated/release_1_5/typed/core/v1:go_default_library",
"//pkg/client/clientset_generated/clientset:go_default_library",
"//pkg/client/clientset_generated/clientset/typed/core/v1:go_default_library",
"//pkg/client/record:go_default_library",
"//pkg/cloudprovider:go_default_library",
"//pkg/controller/informers:go_default_library",
@ -37,7 +35,7 @@ go_test(
deps = [
"//pkg/api/v1:go_default_library",
"//pkg/apis/meta/v1:go_default_library",
"//pkg/client/clientset_generated/release_1_5/fake:go_default_library",
"//pkg/client/clientset_generated/clientset/fake:go_default_library",
"//pkg/client/record:go_default_library",
"//pkg/cloudprovider:go_default_library",
"//pkg/cloudprovider/providers/fake:go_default_library",

5
pkg/controller/cloud/nodecontroller.go
View File

@ -24,8 +24,8 @@ import (
"k8s.io/kubernetes/pkg/api/v1"
metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5"
v1core "k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/typed/core/v1"
clientset "k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
v1core "k8s.io/kubernetes/pkg/client/clientset_generated/clientset/typed/core/v1"
"k8s.io/kubernetes/pkg/client/record"
"k8s.io/kubernetes/pkg/cloudprovider"
"k8s.io/kubernetes/pkg/controller/informers"
@ -55,6 +55,7 @@ const (
retrySleepTime = 20 * time.Millisecond
)
// NewCloudNodeController creates a CloudNodeController object
func NewCloudNodeController(
nodeInformer informers.NodeInformer,
kubeClient clientset.Interface,

2
pkg/controller/cloud/nodecontroller_test.go
View File

@ -23,7 +23,7 @@ import (
"github.com/golang/glog"
"k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/client/clientset_generated/release_1_5/fake"
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset/fake"
metav1 "k8s.io/kubernetes/pkg/apis/meta/v1"
"k8s.io/kubernetes/pkg/client/record"

3
pkg/master/ports/ports.go
View File

@ -29,6 +29,9 @@ const (
// ControllerManagerPort is the default port for the controller manager status server.
// May be overridden by a flag at startup.
ControllerManagerPort = 10252
// CloudControllerManagerPort is the default port for the cloud controller manager server.
// This value may be overriden by a flag at startup.
CloudControllerManagerPort = 10253
// KubeletReadOnlyPort exposes basic read-only services from the kubelet.
// May be overridden by a flag at startup.
// This is necessary for heapster to collect monitoring stats from the kubelet