add basic validate cluster command

clusterctl/cmd/validate.go

@@ -0,0 +1,33 @@
+/*
+Copyright 2018 The Kubernetes 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 cmd
+
+import (
+	"github.com/spf13/cobra"
+	"k8s.io/kubernetes/pkg/kubectl/util/i18n"
+)
+
+var validateCmd = &cobra.Command{
+	Use:   "validate",
+	Short: i18n.T("Validate an API resource created by cluster API."),
+	Long:  i18n.T("Validate an API resource created by cluster API."),
+}
+
+func init() {
+	validateCmd.AddCommand(validateClusterCmd)
+	RootCmd.AddCommand(validateCmd)
+}

clusterctl/cmd/validate_cluster.go

@@ -0,0 +1,50 @@
+/*
+Copyright 2018 The Kubernetes 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 cmd
+
+import (
+	"github.com/golang/glog"
+	"github.com/spf13/cobra"
+	"k8s.io/kubernetes/pkg/kubectl/util/i18n"
+	"sigs.k8s.io/cluster-api/errors"
+)
+
+type ValidateClusterOptions struct {
+	Name string
+}
+
+var vco = &ValidateClusterOptions{}
+
+var validateClusterCmd = &cobra.Command{
+	Use:   "cluster",
+	Short: i18n.T("Validate a cluster created by cluster API."),
+	Long:  i18n.T("Validate a cluster created by cluster API."),
+	Run: func(cmd *cobra.Command, args []string) {
+		if err := RunValidateCluster(vco); err != nil {
+			glog.Exit(err)
+		}
+	},
+}
+
+func RunValidateCluster(vco *ValidateClusterOptions) error {
+	return errors.NotImplementedError
+}
+
+func init() {
+	validateClusterCmd.Flags().StringVarP(&vco.Name, "name", "n", "", "Cluster name")
+	validateClusterCmd.MarkFlagRequired("name")
+}