Added some ctl boilerplate

clitools/pkg/cmd/apply/apply.go

@@ -0,0 +1,54 @@
+package apply
+
+import (
+	"context"
+	"fmt"
+
+	"undecided.project/monok8s/pkg/crds"
+	"undecided.project/monok8s/pkg/kube"
+	"github.com/spf13/cobra"
+	apiextensionsv1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/cli-runtime/pkg/genericclioptions"
+	"k8s.io/klog/v2"
+)
+
+func NewCmdApply(flags *genericclioptions.ConfigFlags) *cobra.Command {
+	cmd := &cobra.Command{Use: "apply", Short: "Apply MonoK8s resources"}
+	cmd.AddCommand(newCmdApplyCRDs(flags))
+	return cmd
+}
+
+func newCmdApplyCRDs(flags *genericclioptions.ConfigFlags) *cobra.Command {
+	return &cobra.Command{
+		Use:   "crds",
+		Short: "Register the MonoKSConfig and OSUpgrade CRDs",
+		RunE: func(cmd *cobra.Command, _ []string) error {
+			clients, err := kube.NewClients(flags)
+			if err != nil {
+				return err
+			}
+			ctx := context.Background()
+			for _, wanted := range crds.Definitions() {
+				_, err := clients.APIExtensions.ApiextensionsV1().CustomResourceDefinitions().Create(ctx, wanted, metav1.CreateOptions{})
+				if apierrors.IsAlreadyExists(err) {
+					current, getErr := clients.APIExtensions.ApiextensionsV1().CustomResourceDefinitions().Get(ctx, wanted.Name, metav1.GetOptions{})
+					if getErr != nil {
+						return getErr
+					}
+					wanted.ResourceVersion = current.ResourceVersion
+					_, err = clients.APIExtensions.ApiextensionsV1().CustomResourceDefinitions().Update(ctx, wanted, metav1.UpdateOptions{})
+				}
+				if err != nil {
+					return err
+				}
+				klog.InfoS("crd applied", "name", wanted.Name)
+			}
+			_, _ = fmt.Fprintln(cmd.OutOrStdout(), "CRDs applied")
+			return nil
+		},
+	}
+}
+
+var _ *apiextensionsv1.CustomResourceDefinition