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docker/install: Support
version: master
Add support for installing Docker `master` packages from `moby/moby-bin` and `dockereng/cli-bin` images. This could also allow to install arbitrary version from these images but for now it's only used for `master`. Signed-off-by: Paweł Gronowski <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,141 @@ | ||
| import * as httpm from '@actions/http-client'; | ||
| import {Index} from './types/oci'; | ||
| import os from 'os'; | ||
| import * as core from '@actions/core'; | ||
| import {Manifest} from './types/oci/manifest'; | ||
| import * as tc from '@actions/tool-cache'; | ||
| import fs from 'fs'; | ||
| import {MEDIATYPE_IMAGE_INDEX_V1, MEDIATYPE_IMAGE_MANIFEST_V1} from './types/oci/mediatype'; | ||
| import {MEDIATYPE_IMAGE_MANIFEST_V2, MEDIATYPE_IMAGE_MANIFEST_LIST_V2} from './types/docker/mediatype'; | ||
| import {DockerHub} from './dockerhub'; | ||
|
|
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| export class HubRepository { | ||
| private repo: string; | ||
| private token: string; | ||
| private static readonly http: httpm.HttpClient = new httpm.HttpClient('setup-docker-action'); | ||
|
|
||
| private constructor(repository: string, token: string) { | ||
| this.repo = repository; | ||
| this.token = token; | ||
| } | ||
|
|
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| public static async build(repository: string): Promise<HubRepository> { | ||
| const token = await this.getToken(repository); | ||
| return new HubRepository(repository, token); | ||
| } | ||
|
|
||
| // Unpacks the image layers and returns the path to the extracted image. | ||
| // Only OCI indexes/manifest list are supported for now. | ||
| public async extractImage(tag: string, destDir?: string): Promise<string> { | ||
| const index = await this.getManifest<Index>(tag); | ||
| if (index.mediaType != MEDIATYPE_IMAGE_INDEX_V1 && index.mediaType != MEDIATYPE_IMAGE_MANIFEST_LIST_V2) { | ||
| throw new Error(`Unsupported image media type: ${index.mediaType}`); | ||
| } | ||
| const digest = HubRepository.getPlatformManifestDigest(index); | ||
| const manifest = await this.getManifest<Manifest>(digest); | ||
|
|
||
| const paths = manifest.layers.map(async layer => { | ||
| const url = this.blobUrl(layer.digest); | ||
|
|
||
| return await tc.downloadTool(url, undefined, undefined, { | ||
| authorization: `Bearer ${this.token}` | ||
| }); | ||
| }); | ||
|
|
||
| let files = await Promise.all(paths); | ||
| let extractFolder: string; | ||
| if (!destDir) { | ||
| extractFolder = await tc.extractTar(files[0]); | ||
| files = files.slice(1); | ||
| } else { | ||
| extractFolder = destDir; | ||
| } | ||
|
|
||
| await Promise.all( | ||
| files.map(async file => { | ||
| return await tc.extractTar(file, extractFolder); | ||
| }) | ||
| ); | ||
|
|
||
| fs.readdirSync(extractFolder).forEach(file => { | ||
| core.info(`extractImage(${this.repo}:${tag} file: ${file}`); | ||
| }); | ||
|
|
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| return extractFolder; | ||
| } | ||
|
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| private static async getToken(repo: string): Promise<string> { | ||
| const url = `https://auth.docker.io/token?service=registry.docker.io&scope=repository:${repo}:pull`; | ||
|
|
||
| const resp = await this.http.get(url); | ||
| const body = await resp.readBody(); | ||
| const statusCode = resp.message.statusCode || 500; | ||
| if (statusCode != 200) { | ||
| throw DockerHub.parseError(resp, body); | ||
| } | ||
|
|
||
| const json = JSON.parse(body); | ||
| return json.token; | ||
| } | ||
|
|
||
| private blobUrl(digest: string): string { | ||
| return `https://registry-1.docker.io/v2/${this.repo}/blobs/${digest}`; | ||
| } | ||
|
|
||
| public async getManifest<T>(tagOrDigest: string): Promise<T> { | ||
| const url = `https://registry-1.docker.io/v2/${this.repo}/manifests/${tagOrDigest}`; | ||
|
|
||
| const headers = { | ||
| Authorization: `Bearer ${this.token}`, | ||
| Accept: [MEDIATYPE_IMAGE_INDEX_V1, MEDIATYPE_IMAGE_MANIFEST_LIST_V2, MEDIATYPE_IMAGE_MANIFEST_V1, MEDIATYPE_IMAGE_MANIFEST_V2].join(', ') | ||
| }; | ||
| const resp = await HubRepository.http.get(url, headers); | ||
| const body = await resp.readBody(); | ||
| const statusCode = resp.message.statusCode || 500; | ||
| if (statusCode != 200) { | ||
| throw DockerHub.parseError(resp, body); | ||
| } | ||
|
|
||
| return <T>JSON.parse(body); | ||
| } | ||
|
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| private static getPlatformManifestDigest(index: Index): string { | ||
| // This doesn't handle all possible platforms normalizations, but it's good enough for now. | ||
| let pos: string = os.platform(); | ||
| if (pos == 'win32') { | ||
| pos = 'windows'; | ||
| } | ||
| let arch = os.arch(); | ||
| if (arch == 'x64') { | ||
| arch = 'amd64'; | ||
| } | ||
| let variant = ''; | ||
| if (arch == 'arm') { | ||
| variant = 'v7'; | ||
| } | ||
|
|
||
| const manifest = index.manifests.find(m => { | ||
| if (!m.platform) { | ||
| return false; | ||
| } | ||
| if (m.platform.os != pos) { | ||
| core.debug(`Skipping manifest ${m.digest} because of os: ${m.platform.os} != ${pos}`); | ||
| return false; | ||
| } | ||
| if (m.platform.architecture != arch) { | ||
| core.debug(`Skipping manifest ${m.digest} because of arch: ${m.platform.architecture} != ${arch}`); | ||
| return false; | ||
| } | ||
| if ((m.platform.variant || '') != variant) { | ||
| core.debug(`Skipping manifest ${m.digest} because of variant: ${m.platform.variant} != ${variant}`); | ||
| return false; | ||
| } | ||
|
|
||
| return true; | ||
| }); | ||
| if (!manifest) { | ||
| throw new Error(`Cannot find manifest for ${pos}/${arch}/${variant}`); | ||
| } | ||
| return manifest.digest; | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,3 @@ | ||
| export const MEDIATYPE_IMAGE_MANIFEST_LIST_V2 = 'application/vnd.docker.distribution.manifest.list.v2+json'; | ||
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| export const MEDIATYPE_IMAGE_MANIFEST_V2 = 'application/vnd.docker.distribution.manifest.v2+json'; |