add new command patch

Signed-off-by: zhzhuang-zju <m17799853869@163.com>

pkg/karmadactl/patch/patch.go

@@ -0,0 +1,53 @@
+/*
+Copyright 2024 The Karmada Authors.
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+    http://www.apache.org/licenses/LICENSE-2.0
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package patch
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"k8s.io/cli-runtime/pkg/genericiooptions"
+	kubectlpatch "k8s.io/kubectl/pkg/cmd/patch"
+	"k8s.io/kubectl/pkg/util/templates"
+
+	"github.com/karmada-io/karmada/pkg/karmadactl/util"
+)
+
+var (
+	patchExample = templates.Examples(`
+		# Partially update a node using a strategic merge patch, specifying the patch as JSON
+		[1]%s patch node k8s-node-1 -p '{"spec":{"unschedulable":true}}'
+
+		# Partially update a node using a strategic merge patch, specifying the patch as YAML
+		[1]%s patch node k8s-node-1 -p $'spec:\n unschedulable: true'
+
+		# Partially update a node identified by the type and name specified in "node.json" using strategic merge patch
+		[1]%s patch -f node.json -p '{"spec":{"unschedulable":true}}'
+
+		# Update a container's image; spec.containers[*].name is required because it's a merge key
+		[1]%s patch pod valid-pod -p '{"spec":{"containers":[{"name":"kubernetes-serve-hostname","image":"new image"}]}}'
+
+		# Update a container's image using a JSON patch with positional arrays
+		[1]%s patch pod valid-pod --type='json' -p='[{"op": "replace", "path": "/spec/containers/0/image", "value":"new image"}]'
+
+		# Update a deployment's replicas through the 'scale' subresource using a merge patch
+		[1]%s patch deployment nginx-deployment --subresource='scale' --type='merge' -p '{"spec":{"replicas":2}}'`)
+)
+
+// NewCmdPatch returns new initialized instance of patch sub command
+func NewCmdPatch(f util.Factory, parentCommnd string, ioStreams genericiooptions.IOStreams) *cobra.Command {
+	cmd := kubectlpatch.NewCmdPatch(f, ioStreams)
+	cmd.Example = fmt.Sprintf(patchExample, parentCommnd)
+	return cmd
+}