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minikube.ts
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minikube.ts
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/**
* Copyright (c) 2019-2021 Red Hat, Inc.
* This program and the accompanying materials are made
* available under the terms of the Eclipse Public License 2.0
* which is available at https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* Red Hat, Inc. - initial API and implementation
*/
import * as execa from 'execa'
import * as Listr from 'listr'
import {CheCtlContext, OIDCContext} from '../../context'
import { KubeClient } from '../../api/kube-client'
import {isCommandExists, sleep} from '../../utils/utls'
import {DOMAIN_FLAG} from '../../flags'
import {CommonTasks} from '../common-tasks'
export namespace MinikubeTasks {
/**
* Returns tasks list which perform preflight platform checks.
*/
export function getPreflightCheckTasks(): Listr.ListrTask<any>[] {
const flags = CheCtlContext.getFlags()
return [
CommonTasks.getVerifyCommand('Verify if kubectl is installed', 'kubectl not found', () => isCommandExists('kubectl')),
CommonTasks.getVerifyCommand('Verify if minikube is installed', 'minikube not found', () => isCommandExists('minikube')),
{
title: 'Verify if minikube is running',
task: async (_ctx: any, task: any) => {
const isRunning = await isMinikubeRunning()
if (!isRunning) {
await startMinikube()
}
task.title = `${task.title}...[OK]`
},
},
{
title: 'Enable minikube ingress addon',
task: async (_ctx: any, task: any) => {
const enabled = await isIngressAddonEnabled()
if (!enabled) {
await enableIngressAddon()
const kubeClient = KubeClient.getInstance()
await kubeClient.waitForPodReady('app.kubernetes.io/instance=ingress-nginx,app.kubernetes.io/component=controller', 'ingress-nginx')
}
task.title = `${task.title}...[Enabled]`
},
},
{
title: 'Retrieving minikube IP and domain for ingress URLs',
enabled: () => !flags[DOMAIN_FLAG],
task: async (_ctx: any, task: any) => {
const ip = await getMinikubeIP()
flags[DOMAIN_FLAG] = ip + '.nip.io'
task.title = `${task.title}...[${flags[DOMAIN_FLAG]}]`
},
},
{
title: 'Checking minikube version',
task: async (ctx: any, task: any) => {
const version = await getMinikubeVersion()
const versionComponents = version.split('.')
ctx.minikubeVersionMajor = Number.parseInt(versionComponents[0], 10)
ctx.minikubeVersionMinor = Number.parseInt(versionComponents[1], 10)
ctx.minikubeVersionPatch = Number.parseInt(versionComponents[2], 10)
task.title = `${task.title}...[${version}]`
},
},
]
}
export function configureApiServerForDex(): Listr.ListrTask<any>[] {
return [
{
title: 'Create /etc/ca-certificates directory',
enabled: (ctx: any) => Boolean(ctx[OIDCContext.CA_FILE]),
task: async (_ctx: any, task: any) => {
const args: string[] = []
args.push('ssh', 'sudo mkdir -p /etc/ca-certificates')
await execa('minikube', args, { timeout: 60_000 })
task.title = `${task.title}...[Created]`
},
},
{
title: 'Copy Dex certificate into Minikube',
enabled: (ctx: any) => Boolean(ctx[OIDCContext.CA_FILE]),
task: async (ctx: any, task: any) => {
const args: string[] = []
args.push('cp', ctx[OIDCContext.CA_FILE], '/etc/ca-certificates/dex-ca.crt')
await execa('minikube', args, { timeout: 60_000 })
task.title = `${task.title}...[OK]`
},
},
{
title: 'Configure Minikube API server',
task: async (ctx: any, task: any) => {
const args: string[] = []
args.push(`--extra-config=apiserver.oidc-issuer-url=${ctx[OIDCContext.ISSUER_URL]}`, `--extra-config=apiserver.oidc-client-id=${ctx[OIDCContext.CLIENT_ID]}`)
if (ctx[OIDCContext.CA_FILE]) {
args.push('--extra-config=apiserver.oidc-ca-file=/etc/ca-certificates/dex-ca.crt')
}
args.push('--extra-config=apiserver.oidc-username-claim=name', '--extra-config=apiserver.oidc-username-prefix=-', '--extra-config=apiserver.oidc-groups-claim=groups', 'start')
await execa('minikube', args, { timeout: 180_000 })
task.title = `${task.title}...[OK]`
},
},
{
title: 'Wait for Minikube API server',
task: async (_ctx: any, task: any) => {
await sleep(30 * 1000)
const kubeClient = KubeClient.getInstance()
await kubeClient.waitForPodReady('component=kube-apiserver', 'kube-system')
task.title = `${task.title}...[OK]`
},
},
]
}
async function isMinikubeRunning(): Promise<boolean> {
const {exitCode} = await execa('minikube', ['status'], {timeout: 10_000, reject: false})
return exitCode === 0
}
async function startMinikube() {
await execa('minikube', ['start', '--memory=4096', '--cpus=4', '--disk-size=50g'], { timeout: 180_000 })
}
async function isIngressAddonEnabled(): Promise<boolean> {
// try with json output (recent minikube version)
const { stdout, exitCode } = await execa('minikube', ['addons', 'list', '-o', 'json'], { timeout: 10_000, reject: false })
if (exitCode === 0) {
// grab json
const json = JSON.parse(stdout)
return json.ingress && json.ingress.Status === 'enabled'
} else {
// probably with old minikube, let's try with classic output
const { stdout } = await execa('minikube', ['addons', 'list'], { timeout: 10_000 })
return stdout.includes('ingress: enabled')
}
}
async function enableIngressAddon(): Promise<void> {
await execa('minikube', ['addons', 'enable', 'ingress'], { timeout: 60_000 })
}
async function getMinikubeIP(): Promise<string> {
const { stdout } = await execa('minikube', ['ip'], { timeout: 10_000 })
return stdout
}
async function getMinikubeVersion(): Promise<string> {
const { stdout } = await execa('minikube', ['version'], { timeout: 10_000 })
const versionLine = stdout.split('\n')[0]
const versionString = versionLine.trim().split(' ')[2].slice(1)
return versionString
}
}