Method buildImageAwsLambda

packages/util/src/docker/index.js:484–556

* Build a Lambda-compatible Docker image from an existing image * @param {Object} params - Build parameters * @param {string} params.imageUri - The name of the existing Docker image * @param {number} [params.port=8080] - The port to expose in the Lambda image * @param {boolean} [params.l

({ imageUri, port = 8080, local = false })

   * @returns {Promise<string>} The URI of the built Lambda Docker image
   */
  async buildImageAwsLambda({ imageUri, port = 8080, local = false }) {
    const buildOutput = []

    // Remove -lambda suffix for base image if present
    const baseImageUri = imageUri.replace('-lambda', '')
    this.logger.debug(`Building AWS Lambda Docker image: ${imageUri}`)

    let dockerfileContent = `FROM ${baseImageUri}
    COPY --from=public.ecr.aws/lambda/nodejs:20 /usr/local/bin/aws-lambda-rie /aws-lambda-rie
    COPY --from=public.ecr.aws/awsguru/aws-lambda-adapter:0.8.4 /lambda-adapter /opt/extensions/lambda-adapter
    ENV AWS_LWA_PORT=${port}`

    if (local) {
      dockerfileContent = `${dockerfileContent}
    ENTRYPOINT ["/aws-lambda-rie", "--runtime-interface-emulator-address", "0.0.0.0:9000", "/cnb/process/web"]`
    }

    // Only append -lambda if it's not already present
    const lambdaImageUri = imageUri.endsWith('-lambda')
      ? imageUri
      : imageUri.includes(':')
        ? `${imageUri}-lambda`
        : `${imageUri}:lambda`

    return await new Promise((resolve, reject) => {
      const dockerProcess = spawn('docker', [
        'build',
        '--provenance=false',
        '--platform=linux/amd64',
        '--load',
        '-t',
        lambdaImageUri,
        '-f-',
        '.',
      ])

      dockerProcess.stdin.write(dockerfileContent)
      dockerProcess.stdin.end()

      dockerProcess.stdout.on('data', (data) =>
        this.#handleBuildOutput({ buildOutput, data }),
      )

      dockerProcess.stderr.on('data', (data) =>
        this.#handleBuildOutput({ buildOutput, data }),
      )

      dockerProcess.on('error', (error) => {
        const buildError = this.#handleBuildFailure({
          containerName: lambdaImageUri,
          buildOutput,
          error,
        })
        reject(buildError)
      })

      dockerProcess.on('close', (code) => {
        if (code === 0) {