def __init__(self,<EOL>docker_network_id=None,<EOL>docker_client=None,<EOL>skip_pull_image=False):
self.skip_pull_image = skip_pull_image<EOL>self.docker_network_id = docker_network_id<EOL>self.docker_client = docker_client or docker.from_env()<EOL>
Instantiate the container manager

:param docker_network_id: Optional Docker network to run this container in.
:param docker_client: Optional docker client object
:param bool skip_pull_image: Should we pull new Docker container image?