Method tailLogs

packages/util/src/docker/index.js:629–654

* Tails logs for a container * @param {Object} params * @param {string} params.containerName - Name of the container to tail logs for * @param {Function} [params.onData] - Callback function to handle log data * @returns {Promise }

({
    containerName,
    onData = () => {},
    onError = () => {},
    onEnd = () => {},
  })

   * @returns {Promise<void>}
   */
  async tailLogs({
    containerName,
    onData = () => {},
    onError = () => {},
    onEnd = () => {},
  }) {
    const serviceContainer = await this.getContainerIfExists({ containerName })

    if (!serviceContainer) {
      throw new ServerlessError(
        `Unable to tail logs due to container "${containerName}" not found`,
        'CONTAINER_NOT_FOUND',
      )
    }
    const stream = await serviceContainer.logs({
      follow: true,
      stdout: true,
      stderr: true,
    })

    stream.on('data', onData)
    stream.on('error', onError)
    stream.on('end', onEnd)

    return stream
  }

  /**
   * Pushes a Docker image