forked from kubernetes-sigs/kube-storage-version-migrator
/
initializer.go
63 lines (58 loc) · 1.7 KB
/
initializer.go
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package app
import (
"fmt"
"os"
migrationclient "github.com/kubernetes-sigs/kube-storage-version-migrator/pkg/clients/clientset"
"github.com/kubernetes-sigs/kube-storage-version-migrator/pkg/initializer"
"github.com/spf13/cobra"
crdclient "k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
apiserviceclient "k8s.io/kube-aggregator/pkg/client/clientset_generated/clientset"
)
const (
initializerUserAgent = "storage-version-migration-initializer"
)
func NewInitializerCommand() *cobra.Command {
return &cobra.Command{
Use: "kube-storage-migrator-initializer",
Long: `The Kubernetes storage migrator initializer is a job that discovers resources that need migration and creates storageVersionMigration objects for such resources.`,
Run: func(cmd *cobra.Command, args []string) {
if err := Run(); err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
os.Exit(1)
}
},
}
}
func Run() error {
// creates the in-cluster config
config, err := rest.InClusterConfig()
if err != nil {
return err
}
clientset, err := kubernetes.NewForConfig(rest.AddUserAgent(config, initializerUserAgent))
if err != nil {
return err
}
crd, err := crdclient.NewForConfig(config)
if err != nil {
return err
}
apiservice, err := apiserviceclient.NewForConfig(config)
if err != nil {
return err
}
migration, err := migrationclient.NewForConfig(config)
if err != nil {
return err
}
init := initializer.NewInitializer(
clientset.Discovery(),
crd.ApiextensionsV1beta1().CustomResourceDefinitions(),
apiservice.ApiregistrationV1().APIServices(),
clientset.CoreV1().Namespaces(),
migration.MigrationV1alpha1(),
)
return init.Initialize()
}