56 lines
1.8 KiB
TypeScript
56 lines
1.8 KiB
TypeScript
// Copyright 2019-2020 The Kubeflow Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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import * as fs from 'fs';
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import { V1Pod } from '@kubernetes/client-node';
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import { getPod } from '../k8s-helper';
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const namespaceFilePath = '/var/run/secrets/kubernetes.io/serviceaccount/namespace';
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let serverNamespace: string | undefined;
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let hostPod: V1Pod | undefined;
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// The file path contains pod namespace when in Kubernetes cluster.
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if (fs.existsSync(namespaceFilePath)) {
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serverNamespace = fs.readFileSync(namespaceFilePath, 'utf-8');
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}
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// get ml-pipeline-ui host pod
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export async function getHostPod(): Promise<[V1Pod | undefined, undefined] | [undefined, string]> {
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// use cached hostPod
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if (hostPod) {
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return [hostPod, undefined];
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}
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if (!serverNamespace) {
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return [undefined, "server namespace can't be obtained"];
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}
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// get ml-pipeline-ui server pod name
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const { HOSTNAME: POD_NAME } = process.env;
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if (!POD_NAME) {
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return [undefined, "server pod name can't be obtained"];
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}
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const [pod, err] = await getPod(POD_NAME, serverNamespace);
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if (err) {
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const { message, additionalInfo } = err;
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console.error(message, additionalInfo);
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return [undefined, `Failed to get host pod: ${message}`];
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}
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hostPod = pod;
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return [hostPod, undefined];
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}
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