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120 lines
3.5 KiB
120 lines
3.5 KiB
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2015 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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Docker server module.
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"""
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import asyncio
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import logging
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import aiohttp
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import docker
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from requests.exceptions import ConnectionError
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log = logging.getLogger(__name__)
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from ..base_manager import BaseManager
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from ..project_manager import ProjectManager
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from .docker_vm import Container
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from .docker_error import DockerError
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class Docker(BaseManager):
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_VM_CLASS = Container
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def __init__(self):
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super().__init__()
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# FIXME: make configurable and start docker before trying
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self._server_url = 'unix://var/run/docker.sock'
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self._client = docker.Client(base_url=self._server_url)
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self._execute_lock = asyncio.Lock()
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@property
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def server_url(self):
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"""Returns the Docker server url.
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:returns: url
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:rtype: string
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"""
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return self._server_url
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@server_url.setter
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def server_url(self, value):
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self._server_url = value
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self._client = docker.Client(base_url=value)
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@asyncio.coroutine
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def execute(self, command, kwargs, timeout=60):
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command = getattr(self._client, command)
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log.debug("Executing Docker with command: {}".format(command))
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try:
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result = command(**kwargs)
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except Exception as error:
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raise DockerError("Docker has returned an error: {}".format(error))
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return result
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@asyncio.coroutine
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def list_images(self):
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"""Gets Docker image list.
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:returns: list of dicts
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:rtype: list
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"""
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images = []
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try:
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for image in self._client.images():
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for tag in image['RepoTags']:
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images.append({'imagename': tag})
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return images
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except ConnectionError as error:
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raise DockerError(
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"""Docker couldn't list images and returned an error: {}
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Is the Docker service running?""".format(error))
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@asyncio.coroutine
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def list_containers(self):
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"""Gets Docker container list.
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:returns: list of dicts
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:rtype: list
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"""
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return self._client.containers()
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def get_container(self, cid, project_id=None):
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"""Returns a Docker container.
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:param id: Docker container identifier
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:param project_id: Project identifier
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:returns: Docker container
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"""
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if project_id:
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project = ProjectManager.instance().get_project(project_id)
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if cid not in self._vms:
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raise aiohttp.web.HTTPNotFound(
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text="Docker container with ID {} doesn't exist".format(cid))
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container = self._vms[cid]
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if project_id:
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if container.project.id != project.id:
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raise aiohttp.web.HTTPNotFound(
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text="Project ID {} doesn't belong to container {}".format(
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project_id, container.name))
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return container
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