Merge pull request #1111 from yue9944882/kubectl-version

Kubectl version wrapper and shortcut

Author: k8s-ci-robot

extended/src/main/java/io/kubernetes/client/extended/kubectl/Kubectl.java

@@ -48,6 +48,25 @@ public static <ApiType extends KubernetesObject> KubectlLabel<ApiType> label(
     return new KubectlLabel<>(apiClient, apiTypeClass);
   }
 
+  /**
+   * Equivalence for `kubectl version`.
+   *
+   * @return the kubectl version
+   */
+  public static KubectlVersion version() {
+    return version(Configuration.getDefaultApiClient());
+  }
+
+  /**
+   * Equivalence for `kubectl version`.
+   *
+   * @param apiClient the api client instance
+   * @return the kubectl version
+   */
+  public static KubectlVersion version(ApiClient apiClient) {
+    return new KubectlVersion(apiClient);
+  }
+
   /**
    * Executable executes a kubectl helper.
    *

extended/src/main/java/io/kubernetes/client/extended/kubectl/KubectlVersion.java

@@ -0,0 +1,38 @@
+/*
+Copyright 2020 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 io.kubernetes.client.extended.kubectl;
+
+import io.kubernetes.client.extended.kubectl.exception.KubectlException;
+import io.kubernetes.client.openapi.ApiClient;
+import io.kubernetes.client.openapi.ApiException;
+import io.kubernetes.client.openapi.models.VersionInfo;
+import io.kubernetes.client.util.version.Version;
+import java.io.IOException;
+
+class KubectlVersion implements Kubectl.Executable<VersionInfo> {
+
+  private final Version version;
+
+  KubectlVersion(ApiClient apiClient) {
+    this.version = new Version(apiClient);
+  }
+
+  @Override
+  public VersionInfo execute() throws KubectlException {
+    try {
+      return this.version.getVersion();
+    } catch (ApiException | IOException e) {
+      throw new KubectlException(e);
+    }
+  }
+}