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cdk8s-cli

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This is the command line tool for Cloud Development Kit (CDK) for Kubernetes (cdk8s).

301 lines • 36.4 kB
"use strict"; var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) { if (k2 === undefined) k2 = k; var desc = Object.getOwnPropertyDescriptor(m, k); if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) { desc = { enumerable: true, get: function() { return m[k]; } }; } Object.defineProperty(o, k2, desc); }) : (function(o, m, k, k2) { if (k2 === undefined) k2 = k; o[k2] = m[k]; })); var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) { Object.defineProperty(o, "default", { enumerable: true, value: v }); }) : function(o, v) { o["default"] = v; }); var __importStar = (this && this.__importStar) || function (mod) { if (mod && mod.__esModule) return mod; var result = {}; if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k); __setModuleDefault(result, mod); return result; }; Object.defineProperty(exports, "__esModule", { value: true }); exports.crdsArePresent = exports.isHelmImport = exports.isK8sImport = exports.deriveFileName = exports.hashAndEncode = exports.parseImports = exports.findConstructMetadata = exports.findManifests = exports.download = exports.safeParseYaml = exports.safeParseJson = exports.validateApp = exports.synthApp = exports.mkdtemp = exports.shell = exports.PREFIX_DELIM = void 0; const child_process_1 = require("child_process"); const crypto_1 = require("crypto"); const fs_1 = require("fs"); const http = __importStar(require("http")); const https = __importStar(require("https")); const os = __importStar(require("os")); const path = __importStar(require("path")); const url_1 = require("url"); const fs = __importStar(require("fs-extra")); const yaml = __importStar(require("yaml")); const crds_dev_1 = require("./import/crds-dev"); const validation_1 = require("./plugins/validation"); exports.PREFIX_DELIM = ':='; async function shell(program, args = [], options = {}) { const command = `"${program} ${args.join(' ')}" at ${path.resolve(options.cwd?.toString() ?? '.')}`; return new Promise((ok, ko) => { const child = (0, child_process_1.spawn)(program, args, { stdio: ['inherit', 'pipe', 'inherit'], ...options }); const data = new Array(); child.stdout?.on('data', chunk => data.push(chunk)); child.once('error', err => ko(new Error(`command ${command} failed: ${err}`))); child.once('exit', code => { if (code === 0) { return ok(Buffer.concat(data).toString('utf-8')); } else { return ko(new Error(`command ${command} returned a non-zero exit code ${code}`)); } }); }); } exports.shell = shell; async function mkdtemp(closure) { const workdir = await fs.mkdtemp(path.join(os.tmpdir(), 'cdk8s-')); try { await closure(workdir); } finally { await fs.remove(workdir); } } exports.mkdtemp = mkdtemp; async function synthApp(command, outdir, stdout, metadata) { if (!stdout) { console.log('Synthesizing application'); } await shell(command, [], { shell: true, env: { ...process.env, CDK8S_OUTDIR: outdir, // record metadata so that the validation report // has contruct aware context. CDK8S_RECORD_CONSTRUCT_METADATA: process.env.CDK8S_RECORD_CONSTRUCT_METADATA ?? (metadata ? 'true' : 'false'), }, }); if (!await fs.pathExists(outdir)) { console.error(`ERROR: synthesis failed, app expected to create "${outdir}"`); process.exit(1); } let found = false; const yamlFiles = await findManifests(outdir); if (yamlFiles?.length) { if (!stdout) { for (const yamlFile of yamlFiles) { console.log(` - ${yamlFile}`); } } found = true; } if (!found) { console.error('No manifests synthesized'); } const constructMetadata = findConstructMetadata(outdir); return { manifests: yamlFiles, constructMetadata }; } exports.synthApp = synthApp; async function validateApp(app, stdout, validations, pluginManager, reportsFile) { const validators = []; for (const validation of validations) { const { plugin, context } = validation_1.ValidationPlugin.load(validation, app, stdout, pluginManager); validators.push({ plugin, context }); } const reports = []; let success = true; console.log('Performing validations'); for (const validator of validators) { await validator.plugin.validate(validator.context); const report = validator.context.report; success = success && report.success; reports.push(report); } console.log('Validations finished'); // now we can print them. we don't incrementally print // so to not clutter the terminal in case of errors. for (const report of reports) { console.log(''); console.log(report.toString()); console.log(''); } if (reportsFile) { if (fs.existsSync(reportsFile)) { throw new Error(`Unable to write validation reports file. Already exists: ${reportsFile}`); } // write the reports in JSON to a file fs.writeFileSync(reportsFile, JSON.stringify({ reports: reports.map(r => r.toJson()), }, null, 2)); } // exit with failure if any report resulted in a failure if (!success) { console.error('Validation failed. See above reports for details'); process.exit(2); } console.log('Validations ended succesfully'); } exports.validateApp = validateApp; function safeParseJson(text, reviver) { const json = JSON.parse(text); reviver.sanitize(json); return json; } exports.safeParseJson = safeParseJson; function safeParseYaml(text, reviver) { // parseAllDocuments doesnt accept a reviver // so we first parse normally and than transform // to JS using the reviver. const parsed = yaml.parseAllDocuments(text); const docs = []; for (const doc of parsed) { const json = doc.toJS(); reviver.sanitize(json); docs.push(json); } return docs; } exports.safeParseYaml = safeParseYaml; async function download(url) { let client; const proto = (0, url_1.parse)(url).protocol; if (!proto || proto === 'file:') { return fs.readFile(url, 'utf-8'); } switch (proto) { case 'https:': client = https; break; case 'http:': client = http; break; default: throw new Error(`unsupported protocol ${proto}`); } return new Promise((ok, ko) => { const req = client.get(url, res => { switch (res.statusCode) { case 200: { const data = new Array(); res.on('data', chunk => data.push(chunk)); res.once('end', () => ok(Buffer.concat(data).toString('utf-8'))); res.once('error', ko); break; } case 301: case 302: { if (res.headers.location) { ok(download(res.headers.location)); } break; } default: { ko(new Error(`${res.statusMessage}: ${url}`)); } } }); req.once('error', ko); req.end(); }); } exports.download = download; async function findManifests(directory) { // Ensure path is valid try { await fs_1.promises.access(directory); } catch { return []; } // Read Path contents const entries = await fs_1.promises.readdir(directory, { withFileTypes: true }); // Get files within the current directory const files = entries .filter(file => (!file.isDirectory() && file.name.endsWith('.yaml'))) .map(file => (directory + '/' + file.name)); // Get sub-folders within the current folder const folders = entries.filter(folder => folder.isDirectory()); for (const folder of folders) { files.push(...await findManifests(`${directory}/${folder.name}`)); } return files; } exports.findManifests = findManifests; function findConstructMetadata(directory) { // this file is optionally created during synthesis const p = path.join(directory, 'construct-metadata.json'); return fs.existsSync(p) ? p : undefined; } exports.findConstructMetadata = findConstructMetadata; function parseImports(spec) { const splitImport = spec.split(exports.PREFIX_DELIM); // k8s@x.y.z // crd.yaml // url.com/crd.yaml if (splitImport.length === 1) { return { source: spec, }; } // crd:=crd.yaml // crd:=url.com/crd.yaml if (splitImport.length === 2) { return { moduleNamePrefix: splitImport[0], source: splitImport[1], }; } throw new Error('Unable to parse import specification. Syntax is [NAME:=]SPEC'); } exports.parseImports = parseImports; function hashAndEncode(input, algorithm = 'sha256', encoding = 'hex') { const hash = (0, crypto_1.createHash)(algorithm); hash.update(input); return hash.digest(encoding); } exports.hashAndEncode = hashAndEncode; function deriveFileName(url) { const devUrl = (0, crds_dev_1.matchCrdsDevUrl)(url); let filename = undefined; if (devUrl) { const lastIndexOfSlash = devUrl.lastIndexOf('/'); const lastIndexOfAt = devUrl.lastIndexOf('@'); filename = (lastIndexOfSlash > 0 && lastIndexOfAt > 0) ? devUrl.slice(lastIndexOfSlash + 1, lastIndexOfAt) : undefined; } else { const lastIndexOfSlash = url.lastIndexOf('/'); const lastIndexOfYaml = url.lastIndexOf('.yaml') > 0 ? url.lastIndexOf('.yaml') : url.lastIndexOf('.yml'); filename = (lastIndexOfSlash > 0 && lastIndexOfYaml > 0) ? url.slice(lastIndexOfSlash + 1, lastIndexOfYaml) : undefined; } if (!filename) { // If the url if for a local file, then just encode the filename and not the entire path // Since path can depend on platform let file = (0, fs_1.existsSync)(url) ? path.basename(url) : url; filename = hashAndEncode(file); } return filename; } exports.deriveFileName = deriveFileName; function isK8sImport(value) { if (value !== 'k8s' && !value.startsWith('k8s@')) { return false; } return true; } exports.isK8sImport = isK8sImport; function isHelmImport(value) { if (!value.startsWith('helm:') && !value.includes(':=helm:')) { return false; } return true; } exports.isHelmImport = isHelmImport; function crdsArePresent(imprts) { return (imprts ?? []).some(imprt => (!isK8sImport(imprt) && !isHelmImport(imprt))); } exports.crdsArePresent = crdsArePresent; //# 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{ spawn, SpawnOptions } from 'child_process';\nimport { BinaryToTextEncoding, createHash } from 'crypto';\nimport { existsSync, promises } from 'fs';\nimport * as http from 'http';\nimport * as https from 'https';\nimport * as os from 'os';\nimport * as path from 'path';\nimport { parse } from 'url';\nimport * as fs from 'fs-extra';\nimport * as yaml from 'yaml';\nimport { ImportSpec, ValidationConfig } from './config';\nimport { matchCrdsDevUrl } from './import/crds-dev';\nimport { PluginManager } from './plugins/_manager';\nimport { ValidationPlugin, ValidationContext, ValidationReport, Validation } from './plugins/validation';\nimport { SafeReviver } from './reviver';\n\nexport const PREFIX_DELIM = ':=';\n\nexport async function shell(program: string, args: string[] = [], options: SpawnOptions = { }): Promise<string> {\n  const command = `\"${program} ${args.join(' ')}\" at ${path.resolve(options.cwd?.toString() ?? '.')}`;\n  return new Promise((ok, ko) => {\n    const child = spawn(program, args, { stdio: ['inherit', 'pipe', 'inherit'], ...options });\n    const data = new Array<Buffer>();\n    child.stdout?.on('data', chunk => data.push(chunk));\n\n    child.once('error', err => ko(new Error(`command ${command} failed: ${err}`)));\n    child.once('exit', code => {\n      if (code === 0) {\n        return ok(Buffer.concat(data).toString('utf-8'));\n      } else {\n        return ko(new Error(`command ${command} returned a non-zero exit code ${code}`));\n      }\n    });\n  });\n}\n\nexport async function mkdtemp(closure: (dir: string) => Promise<void>) {\n  const workdir = await fs.mkdtemp(path.join(os.tmpdir(), 'cdk8s-'));\n  try {\n    await closure(workdir);\n  } finally {\n    await fs.remove(workdir);\n  }\n}\n\nexport async function synthApp(command: string, outdir: string, stdout: boolean, metadata: boolean): Promise<SynthesizedApp> {\n  if (!stdout) {\n    console.log('Synthesizing application');\n  }\n  await shell(command, [], {\n    shell: true,\n    env: {\n      ...process.env,\n      CDK8S_OUTDIR: outdir,\n      // record metadata so that the validation report\n      // has contruct aware context.\n      CDK8S_RECORD_CONSTRUCT_METADATA: process.env.CDK8S_RECORD_CONSTRUCT_METADATA ?? (metadata ? 'true' : 'false'),\n    },\n  });\n\n  if (!await fs.pathExists(outdir)) {\n    console.error(`ERROR: synthesis failed, app expected to create \"${outdir}\"`);\n    process.exit(1);\n  }\n\n  let found = false;\n  const yamlFiles = await findManifests(outdir);\n  if (yamlFiles?.length) {\n    if (!stdout) {\n      for (const yamlFile of yamlFiles) {\n        console.log(`  - ${yamlFile}`);\n      }\n    }\n    found = true;\n  }\n\n  if (!found) {\n    console.error('No manifests synthesized');\n  }\n\n  const constructMetadata = findConstructMetadata(outdir);\n\n  return { manifests: yamlFiles, constructMetadata };\n}\n\nexport async function validateApp(\n  app: SynthesizedApp,\n  stdout: boolean,\n  validations: ValidationConfig[],\n  pluginManager: PluginManager,\n  reportsFile?: string) {\n\n  const validators: { plugin: Validation; context: ValidationContext }[] = [];\n\n  for (const validation of validations) {\n    const { plugin, context } = ValidationPlugin.load(validation, app, stdout, pluginManager);\n    validators.push({ plugin, context });\n  }\n\n  const reports: ValidationReport[] = [];\n  let success = true;\n\n  console.log('Performing validations');\n\n  for (const validator of validators) {\n    await validator.plugin.validate(validator.context);\n    const report = validator.context.report;\n    success = success && report.success;\n    reports.push(report);\n  }\n\n  console.log('Validations finished');\n\n  // now we can print them. we don't incrementally print\n  // so to not clutter the terminal in case of errors.\n  for (const report of reports) {\n    console.log('');\n    console.log(report.toString());\n    console.log('');\n  }\n\n  if (reportsFile) {\n\n    if (fs.existsSync(reportsFile)) {\n      throw new Error(`Unable to write validation reports file. Already exists: ${reportsFile}`);\n    }\n    // write the reports in JSON to a file\n    fs.writeFileSync(reportsFile, JSON.stringify({\n      reports: reports.map(r => r.toJson()),\n    }, null, 2));\n  }\n\n  // exit with failure if any report resulted in a failure\n  if (!success) {\n    console.error('Validation failed. See above reports for details');\n    process.exit(2);\n  }\n\n  console.log('Validations ended succesfully');\n\n}\n\nexport function safeParseJson(text: string, reviver: SafeReviver): any {\n  const json = JSON.parse(text);\n  reviver.sanitize(json);\n  return json;\n}\n\nexport function safeParseYaml(text: string, reviver: SafeReviver): any[] {\n\n  // parseAllDocuments doesnt accept a reviver\n  // so we first parse normally and than transform\n  // to JS using the reviver.\n  const parsed = yaml.parseAllDocuments(text);\n  const docs = [];\n  for (const doc of parsed) {\n    const json = doc.toJS();\n    reviver.sanitize(json);\n    docs.push(json);\n  }\n  return docs;\n}\n\nexport async function download(url: string): Promise<string> {\n\n  let client: typeof http | typeof https;\n  const proto = parse(url).protocol;\n\n  if (!proto || proto === 'file:') {\n    return fs.readFile(url, 'utf-8');\n  }\n\n  switch (proto) {\n    case 'https:':\n      client = https;\n      break;\n\n    case 'http:':\n      client = http;\n      break;\n\n    default:\n      throw new Error(`unsupported protocol ${proto}`);\n  }\n\n  return new Promise((ok, ko) => {\n    const req = client.get(url, res => {\n      switch (res.statusCode) {\n        case 200: {\n          const data = new Array<Buffer>();\n          res.on('data', chunk => data.push(chunk));\n          res.once('end', () => ok(Buffer.concat(data).toString('utf-8')));\n          res.once('error', ko);\n          break;\n        }\n\n        case 301:\n        case 302: {\n          if (res.headers.location) {\n            ok(download(res.headers.location));\n          }\n          break;\n        }\n\n        default: {\n          ko(new Error(`${res.statusMessage}: ${url}`));\n        }\n      }\n    });\n\n    req.once('error', ko);\n    req.end();\n  });\n}\n\nexport async function findManifests(directory: string): Promise<string[]> {\n  // Ensure path is valid\n  try {\n    await promises.access(directory);\n  } catch {\n    return [];\n  }\n\n  // Read Path contents\n  const entries = await promises.readdir(directory, { withFileTypes: true });\n\n  // Get files within the current directory\n  const files = entries\n    .filter(file => (!file.isDirectory() && file.name.endsWith('.yaml')))\n    .map(file => (directory + '/' + file.name));\n\n  // Get sub-folders within the current folder\n  const folders = entries.filter(folder => folder.isDirectory());\n\n  for (const folder of folders) {\n    files.push(...await findManifests(`${directory}/${folder.name}`));\n  }\n\n  return files;\n}\n\nexport function findConstructMetadata(directory: string): string | undefined {\n  // this file is optionally created during synthesis\n  const p = path.join(directory, 'construct-metadata.json');\n  return fs.existsSync(p) ? p : undefined;\n}\n\n/**\n * Result of synthesizing an application.\n */\nexport interface SynthesizedApp {\n\n  /**\n   * The list of manifests produced by the app.\n   */\n  readonly manifests: readonly string[];\n\n  /**\n   * The construct metadata file (if exists).\n   */\n  readonly constructMetadata?: string;\n}\n\nexport function parseImports(spec: string): ImportSpec {\n  const splitImport = spec.split(PREFIX_DELIM);\n\n  // k8s@x.y.z\n  // crd.yaml\n  // url.com/crd.yaml\n  if (splitImport.length === 1) {\n    return {\n      source: spec,\n    };\n  }\n\n  // crd:=crd.yaml\n  // crd:=url.com/crd.yaml\n  if (splitImport.length === 2) {\n    return {\n      moduleNamePrefix: splitImport[0],\n      source: splitImport[1],\n    };\n  }\n\n  throw new Error('Unable to parse import specification. Syntax is [NAME:=]SPEC');\n}\n\nexport function hashAndEncode(input: string, algorithm: string = 'sha256', encoding: BinaryToTextEncoding = 'hex'): string {\n  const hash = createHash(algorithm);\n  hash.update(input);\n  return hash.digest(encoding);\n}\n\nexport function deriveFileName(url: string): string {\n  const devUrl = matchCrdsDevUrl(url);\n  let filename = undefined;\n\n  if (devUrl) {\n    const lastIndexOfSlash = devUrl.lastIndexOf('/');\n    const lastIndexOfAt = devUrl.lastIndexOf('@');\n    filename = (lastIndexOfSlash > 0 && lastIndexOfAt > 0) ? devUrl.slice(lastIndexOfSlash+1, lastIndexOfAt): undefined;\n  } else {\n    const lastIndexOfSlash = url.lastIndexOf('/');\n    const lastIndexOfYaml = url.lastIndexOf('.yaml') > 0 ? url.lastIndexOf('.yaml') : url.lastIndexOf('.yml');\n\n    filename = (lastIndexOfSlash > 0 && lastIndexOfYaml > 0) ? url.slice(lastIndexOfSlash+1, lastIndexOfYaml): undefined;\n  }\n\n  if (!filename) {\n    // If the url if for a local file, then just encode the filename and not the entire path\n    // Since path can depend on platform\n    let file = existsSync(url) ? path.basename(url) : url;\n\n    filename = hashAndEncode(file);\n  }\n\n  return filename;\n}\n\nexport function isK8sImport(value: string): boolean {\n  if (value !== 'k8s' && !value.startsWith('k8s@')) {\n    return false;\n  }\n\n  return true;\n}\n\nexport function isHelmImport(value: string): boolean {\n  if (!value.startsWith('helm:') && !value.includes(':=helm:')) {\n    return false;\n  }\n\n  return true;\n}\n\nexport function crdsArePresent(imprts: string[] | undefined): boolean {\n  return (imprts ?? []).some(imprt => (!isK8sImport(imprt) && !isHelmImport(imprt)));\n}"]}