@aws-cdk/core
Version:
AWS Cloud Development Kit Core Library
139 lines • 22.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DockerVolumeConsistency = exports.BundlingDockerImage = void 0;
const child_process_1 = require("child_process");
const fs_1 = require("./fs");
/**
* A Docker image used for asset bundling.
*/
class BundlingDockerImage {
/** @param image The Docker image */
constructor(image, _imageHash) {
this.image = image;
this._imageHash = _imageHash;
}
/**
* Reference an image on DockerHub or another online registry.
*
* @param image the image name.
*/
static fromRegistry(image) {
return new BundlingDockerImage(image);
}
/**
* Reference an image that's built directly from sources on disk.
*
* @param path The path to the directory containing the Docker file.
* @param options Docker build options.
*/
static fromAsset(path, options = {}) {
const buildArgs = options.buildArgs || {};
const dockerArgs = [
'build', '-q',
...(options.file ? ['-f', options.file] : []),
...flatten(Object.entries(buildArgs).map(([k, v]) => ['--build-arg', `${k}=${v}`])),
path,
];
const docker = dockerExec(dockerArgs);
const match = docker.stdout.toString().match(/sha256:([a-z0-9]+)/);
if (!match) {
throw new Error('Failed to extract image ID from Docker build output');
}
// Fingerprints the directory containing the Dockerfile we're building and
// differentiates the fingerprint based on build arguments. We do this so
// we can provide a stable image hash. Otherwise, the image ID will be
// different every time the Docker layer cache is cleared, due primarily to
// timestamps.
const hash = fs_1.FileSystem.fingerprint(path, { extraHash: JSON.stringify(options) });
return new BundlingDockerImage(match[1], hash);
}
/**
* Provides a stable representation of this image for JSON serialization.
*
* @returns The overridden image name if set or image hash name in that order
*/
toJSON() {
var _a;
return (_a = this._imageHash) !== null && _a !== void 0 ? _a : this.image;
}
/**
* Runs a Docker image.
*/
run(options = {}) {
const volumes = options.volumes || [];
const environment = options.environment || {};
const command = options.command || [];
const dockerArgs = [
'run', '--rm',
...options.user
? ['-u', options.user]
: [],
...flatten(volumes.map(v => { var _a; return ['-v', `${v.hostPath}:${v.containerPath}:${(_a = v.consistency) !== null && _a !== void 0 ? _a : DockerVolumeConsistency.DELEGATED}`]; })),
...flatten(Object.entries(environment).map(([k, v]) => ['--env', `${k}=${v}`])),
...options.workingDirectory
? ['-w', options.workingDirectory]
: [],
this.image,
...command,
];
dockerExec(dockerArgs, {
stdio: [
'ignore',
process.stderr,
'inherit',
],
});
}
/**
* Copies a file or directory out of the Docker image to the local filesystem.
*/
cp(imagePath, outputPath) {
const { stdout } = dockerExec(['create', this.image]);
const match = stdout.toString().match(/([0-9a-f]{16,})/);
if (!match) {
throw new Error('Failed to extract container ID from Docker create output');
}
const containerId = match[1];
const containerPath = `${containerId}:${imagePath}`;
try {
dockerExec(['cp', containerPath, outputPath]);
}
catch (err) {
throw new Error(`Failed to copy files from ${containerPath} to ${outputPath}: ${err}`);
}
finally {
dockerExec(['rm', '-v', containerId]);
}
}
}
exports.BundlingDockerImage = BundlingDockerImage;
/**
* Supported Docker volume consistency types.
*
* Only valid on macOS due to the way file storage works on Mac
*/
var DockerVolumeConsistency;
(function (DockerVolumeConsistency) {
DockerVolumeConsistency["CONSISTENT"] = "consistent";
DockerVolumeConsistency["DELEGATED"] = "delegated";
DockerVolumeConsistency["CACHED"] = "cached";
})(DockerVolumeConsistency = exports.DockerVolumeConsistency || (exports.DockerVolumeConsistency = {}));
function flatten(x) {
return Array.prototype.concat([], ...x);
}
function dockerExec(args, options) {
var _a, _b, _c;
const prog = (_a = process.env.CDK_DOCKER) !== null && _a !== void 0 ? _a : 'docker';
const proc = child_process_1.spawnSync(prog, args, options);
if (proc.error) {
throw proc.error;
}
if (proc.status !== 0) {
if (proc.stdout || proc.stderr) {
throw new Error(`[Status ${proc.status}] stdout: ${(_b = proc.stdout) === null || _b === void 0 ? void 0 : _b.toString().trim()}\n\n\nstderr: ${(_c = proc.stderr) === null || _c === void 0 ? void 0 : _c.toString().trim()}`);
}
throw new Error(`${prog} exited with status ${proc.status}`);
}
return proc;
}
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};\n\n                                                                                               \n  readonly workingDirectory?: string;\n\n                                                                                                                                                                                                                                                                                   \n  readonly user?: string;\n\n                                                                                                                                                                                                                                                                                                                                 \n  readonly local?: ILocalBundling;\n}\n\n                                             \nexport interface ILocalBundling {\n                                                                                                                                                                                                                                                                                                                                                                                \n  tryBundle(outputDir: string, options: BundlingOptions): boolean;\n}\n\n                                                 \nexport class BundlingDockerImage {\n                                                                                                                  \n  public static fromRegistry(image: string) {\n    return new BundlingDockerImage(image);\n  }\n\n                                                                                                                                                                                                   \n  public static fromAsset(path: string, options: DockerBuildOptions = {}) {\n    const buildArgs = options.buildArgs || {};\n\n    const dockerArgs: string[] = [\n      'build', '-q',\n      ...(options.file ? ['-f', options.file] : []),\n      ...flatten(Object.entries(buildArgs).map(([k, v]) => ['--build-arg', `${k}=${v}`])),\n      path,\n    ];\n\n    const docker = dockerExec(dockerArgs);\n\n    const match = docker.stdout.toString().match(/sha256:([a-z0-9]+)/);\n\n    if (!match) {\n      throw new Error('Failed to extract image ID from Docker build output');\n    }\n\n    // Fingerprints the directory containing the Dockerfile we're building and\n    // differentiates the fingerprint based on build arguments. We do this so\n    // we can provide a stable image hash. Otherwise, the image ID will be\n    // different every time the Docker layer cache is cleared, due primarily to\n    // timestamps.\n    const hash = FileSystem.fingerprint(path, { extraHash: JSON.stringify(options) });\n    return new BundlingDockerImage(match[1], hash);\n  }\n\n  /** @param image The Docker image */\n  private constructor(public readonly image: string, private readonly _imageHash?: string) {}\n\n                                                                                                                                                                           \n  public toJSON() {\n    return this._imageHash ?? this.image;\n  }\n\n                                    \n  public run(options: DockerRunOptions = {}) {\n    const volumes = options.volumes || [];\n    const environment = options.environment || {};\n    const command = options.command || [];\n\n    const dockerArgs: string[] = [\n      'run', '--rm',\n      ...options.user\n        ? ['-u', options.user]\n        : [],\n      ...flatten(volumes.map(v => ['-v', `${v.hostPath}:${v.containerPath}:${v.consistency ?? DockerVolumeConsistency.DELEGATED}`])),\n      ...flatten(Object.entries(environment).map(([k, v]) => ['--env', `${k}=${v}`])),\n      ...options.workingDirectory\n        ? ['-w', options.workingDirectory]\n        : [],\n      this.image,\n      ...command,\n    ];\n\n    dockerExec(dockerArgs, {\n      stdio: [ // show Docker output\n        'ignore', // ignore stdio\n        process.stderr, // redirect stdout to stderr\n        'inherit', // inherit stderr\n      ],\n    });\n  }\n\n                                                                                           \n  public cp(imagePath: string, outputPath: string) {\n    const { stdout } = dockerExec(['create', this.image]);\n    const match = stdout.toString().match(/([0-9a-f]{16,})/);\n    if (!match) {\n      throw new Error('Failed to extract container ID from Docker create output');\n    }\n\n    const containerId = match[1];\n    const containerPath = `${containerId}:${imagePath}`;\n    try {\n      dockerExec(['cp', containerPath, outputPath]);\n    } catch (err) {\n      throw new Error(`Failed to copy files from ${containerPath} to ${outputPath}: ${err}`);\n    } finally {\n      dockerExec(['rm', '-v', containerId]);\n    }\n  }\n}\n\n                          \nexport interface DockerVolume {\n                                                                      \n  readonly hostPath: string;\n\n                                                                                 \n  readonly containerPath: string;\n\n                                                                                                                                                                                                         \n  readonly consistency?: DockerVolumeConsistency;\n}\n\n                                                                                                                  \nexport enum DockerVolumeConsistency {\n                                                                                                                              \n  CONSISTENT = 'consistent',\n                                                                                                                                                 \n  DELEGATED = 'delegated',\n                                                                                                                                             \n  CACHED = 'cached',\n}\n\n                             \nexport interface DockerRunOptions {\n                                                                                                               \n  readonly command?: string[];\n\n                                                                                     \n  readonly volumes?: DockerVolume[];\n\n                                                                                                                   \n  readonly environment?: { [key: string]: string; };\n\n                                                                                           \n  readonly workingDirectory?: string;\n\n                                                                                                       \n  readonly user?: string;\n}\n\n                               \nexport interface DockerBuildOptions {\n                                                              \n  readonly buildArgs?: { [key: string]: string };\n\n                                                                                                                     \n  readonly file?: string;\n}\n\nfunction flatten(x: string[][]) {\n  return Array.prototype.concat([], ...x);\n}\n\nfunction dockerExec(args: string[], options?: SpawnSyncOptions) {\n  const prog = process.env.CDK_DOCKER ?? 'docker';\n  const proc = spawnSync(prog, args, options);\n\n  if (proc.error) {\n    throw proc.error;\n  }\n\n  if (proc.status !== 0) {\n    if (proc.stdout || proc.stderr) {\n      throw new Error(`[Status ${proc.status}] stdout: ${proc.stdout?.toString().trim()}\\n\\n\\nstderr: ${proc.stderr?.toString().trim()}`);\n    }\n    throw new Error(`${prog} exited with status ${proc.status}`);\n  }\n\n  return proc;\n}\n"]}