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40 lines
1.4 KiB
Python
40 lines
1.4 KiB
Python
# Copyright (c) Jupyter Development Team.
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# Distributed under the terms of the Modified BSD License.
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import docker
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import logging
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logger = logging.getLogger(__name__)
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class DockerRunner:
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def __init__(self, image_name, docker_client=docker.from_env(), command="sleep infinity"):
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self.container = None
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self.image_name = image_name
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self.command = command
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self.docker_client = docker_client
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def __enter__(self):
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logger.info(f"Creating container for image {self.image_name} ...")
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self.container = self.docker_client.containers.run(
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image=self.image_name, command=self.command, detach=True,
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)
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logger.info(f"Container {self.container.name} created")
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return self.container
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def __exit__(self, exc_type, exc_value, traceback):
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logger.info(f"Removing container {self.container.name} ...")
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if self.container:
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self.container.remove(force=True)
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logger.info(f"Container {self.container.name} removed")
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@staticmethod
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def run_simple_command(container, cmd, print_result=True):
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logger.info(f"Running cmd: '{cmd}' on container: {container}")
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out = container.exec_run(cmd)
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assert out.exit_code == 0, f"Command: {cmd} failed"
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result = out.output.decode("utf-8").rstrip()
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if print_result:
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logger.info(f"Command result: {result}")
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return result
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