Add support for kubernetes config parsing

Signed-off-by: Denis Golovin <[email protected]>

src/kubeconfig.ts

@@ -0,0 +1,38 @@
+/**********************************************************************
+ * Copyright (C) 2022 - 2023 Red Hat, Inc.
+ *
+ * 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.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ ***********************************************************************/
+
+import { KubeConfig } from '@kubernetes/client-node'
+import * as fs from 'fs-extra';
+import * as jsYaml from 'js-yaml';
+
+export function createOrLoadFromFile(configFile: string): KubeConfig {
+  let config = new KubeConfig();
+
+  if (fs.existsSync(configFile)) {
+   config.loadFromFile(configFile);
+  }
+  return config;
+}
+
+export function exportToFile(kubeconfig: KubeConfig, configLocation: string): void {
+  const configContents = JSON.parse(kubeconfig.exportConfig());
+  fs.writeFileSync(
+    configLocation, jsYaml.dump(configContents, { noArrayIndent: true, quotingType: '"', lineWidth: -1 }),
+    'utf-8',
+  );
+}