mirror of
https://github.com/GNS3/gns3-server.git
synced 2024-12-30 17:46:59 +00:00
141 lines
4.6 KiB
Python
141 lines
4.6 KiB
Python
# -*- 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 urllib
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import json
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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 DockerVM
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from .docker_error import DockerError
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class Docker(BaseManager):
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_VM_CLASS = DockerVM
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def __init__(self):
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super().__init__()
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self._server_url = '/var/run/docker.sock'
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self._connected = False
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# Allow locking during ubridge operations
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self.ubridge_lock = asyncio.Lock()
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@asyncio.coroutine
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def connector(self):
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if not self._connected:
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try:
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self._connector = aiohttp.connector.UnixConnector(self._server_url)
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self._connected = True
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yield from self.query("GET", "info")
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except (aiohttp.errors.ClientOSError, FileNotFoundError):
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self._connected = False
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raise DockerError("Can't connect to docker daemon")
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return self._connector
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def __del__(self):
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if self._connected:
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self._connector.close()
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@asyncio.coroutine
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def query(self, method, path, data={}, params={}):
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"""
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Make a query to the docker daemon and decode the request
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:param method: HTTP method
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:param path: Endpoint in API
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:param data: Dictionnary with the body. Will be transformed to a JSON
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:param params: Parameters added as a query arg
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"""
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response = yield from self.http_query(method, path, data=data, params=params)
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body = yield from response.read()
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if len(body):
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body = json.loads(body.decode("utf-8"))
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log.debug("Query Docker %s %s params=%s data=%s Response: %s", method, path, params, data, body)
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return body
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@asyncio.coroutine
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def http_query(self, method, path, data={}, params={}):
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"""
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Make a query to the docker daemon
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:param method: HTTP method
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:param path: Endpoint in API
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:param data: Dictionnary with the body. Will be transformed to a JSON
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:param params: Parameters added as a query arg
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:returns: HTTP response
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"""
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data = json.dumps(data)
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url = "http://docker/" + path
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response = yield from aiohttp.request(
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method,
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url,
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connector=(yield from self.connector()),
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params=params,
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data=data,
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headers={"content-type": "application/json", },
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)
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if response.status >= 300:
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body = yield from response.read()
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try:
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body = json.loads(body.decode("utf-8"))["message"]
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except ValueError:
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pass
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log.debug("Query Docker %s %s params=%s data=%s Response: %s", method, path, params, data, body)
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raise DockerError("Docker has returned an error: {}".format(body))
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return response
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@asyncio.coroutine
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def websocket_query(self, path, params={}):
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"""
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Open a websocket connection
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:param path: Endpoint in API
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:param params: Parameters added as a query arg
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:returns: Websocket
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"""
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url = "http://docker/" + path
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connection = yield from aiohttp.ws_connect(url,
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connector=(yield from self.connector()),
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origin="http://docker",
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autoping=True)
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return connection
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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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for image in (yield from self.query("GET", "images/json", params={"all": 0})):
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for tag in image['RepoTags']:
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if tag != "<none>:<none>":
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images.append({'image': tag})
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return sorted(images, key=lambda i: i['image'])
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