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59 lines
1.9 KiB
Python
59 lines
1.9 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 logging
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from types import TracebackType
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from typing import Optional
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import docker
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from docker.models.containers import Container
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LOGGER = logging.getLogger(__name__)
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class DockerRunner:
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def __init__(
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self,
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image_name: str,
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docker_client: docker.DockerClient = docker.from_env(),
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command: str = "sleep infinity",
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):
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self.container: Optional[Container] = None
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self.image_name: str = image_name
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self.command: str = command
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self.docker_client: docker.DockerClient = docker_client
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def __enter__(self) -> Container:
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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,
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command=self.command,
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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__(
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self,
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exc_type: Optional[type[BaseException]],
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exc_val: Optional[BaseException],
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exc_tb: Optional[TracebackType],
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) -> None:
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assert self.container is not None
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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(
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container: Container, cmd: str, print_result: bool = True
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) -> str:
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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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result = out.output.decode("utf-8").rstrip()
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assert isinstance(result, str)
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if print_result:
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LOGGER.info(f"Command result: {result}")
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assert out.exit_code == 0, f"Command: {cmd} failed"
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return result
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