@kubernetes/client-node
Version:
NodeJS client for kubernetes
56 lines • 2.59 kB
JavaScript
import fs from 'node:fs';
import { WritableStreamBuffer } from 'stream-buffers';
import * as tar from 'tar';
import tmp from 'tmp-promise';
import { Exec } from './exec.js';
export class Cp {
constructor(config, execInstance) {
this.execInstance = execInstance || new Exec(config);
}
/**
* @param {string} namespace - The namespace of the pod to exec the command inside.
* @param {string} podName - The name of the pod to exec the command inside.
* @param {string} containerName - The name of the container in the pod to exec the command inside.
* @param {string} srcPath - The source path in the pod
* @param {string} tgtPath - The target path in local
*/
async cpFromPod(namespace, podName, containerName, srcPath, tgtPath) {
const tmpFile = tmp.fileSync();
const tmpFileName = tmpFile.name;
const command = ['tar', 'zcf', '-', srcPath];
const writerStream = fs.createWriteStream(tmpFileName);
const errStream = new WritableStreamBuffer();
this.execInstance.exec(namespace, podName, containerName, command, writerStream, errStream, null, false, async () => {
if (errStream.size()) {
throw new Error(`Error from cpFromPod - details: \n ${errStream.getContentsAsString()}`);
}
await tar.x({
file: tmpFileName,
cwd: tgtPath,
});
});
}
/**
* @param {string} namespace - The namespace of the pod to exec the command inside.
* @param {string} podName - The name of the pod to exec the command inside.
* @param {string} containerName - The name of the container in the pod to exec the command inside.
* @param {string} srcPath - The source path in local
* @param {string} tgtPath - The target path in the pod
*/
async cpToPod(namespace, podName, containerName, srcPath, tgtPath) {
const tmpFile = tmp.fileSync();
const tmpFileName = tmpFile.name;
const command = ['tar', 'xf', '-', '-C', tgtPath];
await tar.c({
file: tmpFile.name,
}, [srcPath]);
const readStream = fs.createReadStream(tmpFileName);
const errStream = new WritableStreamBuffer();
this.execInstance.exec(namespace, podName, containerName, command, null, errStream, readStream, false, async () => {
if (errStream.size()) {
throw new Error(`Error from cpToPod - details: \n ${errStream.getContentsAsString()}`);
}
});
}
}
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