/
options.go
124 lines (100 loc) · 4.47 KB
/
options.go
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package options
import (
v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/runtime"
clientset "k8s.io/client-go/kubernetes"
"k8s.io/client-go/kubernetes/scheme"
v1core "k8s.io/client-go/kubernetes/typed/core/v1"
restclient "k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
"k8s.io/client-go/tools/leaderelection/resourcelock"
"k8s.io/client-go/tools/record"
cliflag "k8s.io/component-base/cli/flag"
componentbaseconfig "k8s.io/component-base/config"
"k8s.io/component-base/config/options"
componentbaseconfigv1alpha1 "k8s.io/component-base/config/v1alpha1"
"k8s.io/component-base/logs"
logsapi "k8s.io/component-base/logs/api/v1"
"github.com/clusterpedia-io/clusterpedia/cmd/controller-manager/app/config"
crdclientset "github.com/clusterpedia-io/clusterpedia/pkg/generated/clientset/versioned"
)
const (
ControllerManagerUserAgent = "controller-manager"
)
type Options struct {
LeaderElection componentbaseconfig.LeaderElectionConfiguration
ClientConnection componentbaseconfig.ClientConnectionConfiguration
Logs *logs.Options
Master string
Kubeconfig string
}
func NewControllerManagerOptions() (*Options, error) {
var (
leaderElection componentbaseconfigv1alpha1.LeaderElectionConfiguration
clientConnection componentbaseconfigv1alpha1.ClientConnectionConfiguration
)
componentbaseconfigv1alpha1.RecommendedDefaultLeaderElectionConfiguration(&leaderElection)
componentbaseconfigv1alpha1.RecommendedDefaultClientConnectionConfiguration(&clientConnection)
leaderElection.ResourceName = "clusterpedia-controller-manager"
leaderElection.ResourceNamespace = "clusterpedia-system"
leaderElection.ResourceLock = resourcelock.LeasesResourceLock
clientConnection.ContentType = runtime.ContentTypeJSON
var options Options
// not need scheme.Convert
if err := componentbaseconfigv1alpha1.Convert_v1alpha1_LeaderElectionConfiguration_To_config_LeaderElectionConfiguration(&leaderElection, &options.LeaderElection, nil); err != nil {
return nil, err
}
if err := componentbaseconfigv1alpha1.Convert_v1alpha1_ClientConnectionConfiguration_To_config_ClientConnectionConfiguration(&clientConnection, &options.ClientConnection, nil); err != nil {
return nil, err
}
options.Logs = logs.NewOptions()
return &options, nil
}
func (o *Options) Flags() cliflag.NamedFlagSets {
var fss cliflag.NamedFlagSets
genericfs := fss.FlagSet("generic")
genericfs.StringVar(&o.ClientConnection.ContentType, "kube-api-content-type", o.ClientConnection.ContentType, "Content type of requests sent to apiserver.")
genericfs.Float32Var(&o.ClientConnection.QPS, "kube-api-qps", o.ClientConnection.QPS, "QPS to use while talking with kubernetes apiserver.")
genericfs.Int32Var(&o.ClientConnection.Burst, "kube-api-burst", o.ClientConnection.Burst, "Burst to use while talking with kubernetes apiserver.")
options.BindLeaderElectionFlags(&o.LeaderElection, genericfs)
fs := fss.FlagSet("misc")
fs.StringVar(&o.Master, "master", o.Master, "The address of the Kubernetes API server (overrides any value in kubeconfig).")
fs.StringVar(&o.Kubeconfig, "kubeconfig", o.Kubeconfig, "Path to kubeconfig file with authorization and master location information.")
logsapi.AddFlags(o.Logs, fss.FlagSet("logs"))
return fss
}
func (o *Options) Validate() error {
return nil
}
func (o *Options) Config() (*config.Config, error) {
if err := o.Validate(); err != nil {
return nil, err
}
kubeconfig, err := clientcmd.BuildConfigFromFlags(o.Master, o.Kubeconfig)
if err != nil {
return nil, err
}
kubeconfig.ContentConfig.AcceptContentTypes = o.ClientConnection.AcceptContentTypes
kubeconfig.ContentConfig.ContentType = o.ClientConnection.ContentType
kubeconfig.QPS = o.ClientConnection.QPS
kubeconfig.Burst = int(o.ClientConnection.Burst)
client, err := clientset.NewForConfig(restclient.AddUserAgent(kubeconfig, ControllerManagerUserAgent))
if err != nil {
return nil, err
}
crdclient, err := crdclientset.NewForConfig(restclient.AddUserAgent(kubeconfig, ControllerManagerUserAgent))
if err != nil {
return nil, err
}
eventBroadcaster := record.NewBroadcaster()
eventBroadcaster.StartStructuredLogging(0)
eventBroadcaster.StartRecordingToSink(&v1core.EventSinkImpl{Interface: client.CoreV1().Events("")})
eventRecorder := eventBroadcaster.NewRecorder(scheme.Scheme, v1.EventSource{Component: ControllerManagerUserAgent})
return &config.Config{
Client: client,
CRDClient: crdclient,
Kubeconfig: kubeconfig,
EventRecorder: eventRecorder,
LeaderElection: o.LeaderElection,
}, nil
}