commands.py 文件源码

def install_docker(version=None, container_id=None):
    container_id = container_id or work.last_container_id
    try:
        quiet_docker('exec', container_id, *'which docker'.split(' '))
        logger.info('Docker already installed on container. Doing nothing')
        return
    except sh.ErrorReturnCode:
        pass
    cp(resources.DIR / 'docker.repo', ':/etc/yum.repos.d/docker.repo',
       container_id=container_id)
    version = version or _get_docker_version()
    install_docker_command = 'yum install -y -q docker-engine-{}'.format(
        version)
    docker('exec', container_id, *install_docker_command.split(' '))