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https://github.com/GNS3/gns3-server.git
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Rename modules => hypervisor
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@@ -0,0 +1,155 @@
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# -*- 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
|
||||
# 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
|
||||
# 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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from pkg_resources import parse_version
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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 *
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DOCKER_MINIMUM_API_VERSION = "1.21"
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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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version = yield from self.query("GET", "version")
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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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if parse_version(version["ApiVersion"]) < parse_version(DOCKER_MINIMUM_API_VERSION):
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raise DockerError("Docker API version is {}. But GNS3 require a minimum API version {}".format(version["ApiVersion"], DOCKER_MINIMUM_API_VERSION))
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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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if response.headers['CONTENT-TYPE'] == 'application/json':
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body = json.loads(body.decode("utf-8"))
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else:
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body = 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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if response.status == 304:
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raise DockerHttp304Error("Docker has returned an error: {} {}".format(response.status, body))
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elif response.status == 404:
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raise DockerHttp404Error("Docker has returned an error: {} {}".format(response.status, body))
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else:
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raise DockerError("Docker has returned an error: {} {}".format(response.status, 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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@@ -0,0 +1,34 @@
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# -*- 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
|
||||
# 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
|
||||
# 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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Custom exceptions for the Docker module.
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"""
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from ..vm_error import VMError
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class DockerError(VMError):
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pass
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class DockerHttp304Error(DockerError):
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pass
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class DockerHttp404Error(DockerError):
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pass
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@@ -0,0 +1,730 @@
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# -*- 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
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# 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 container instance.
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"""
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import asyncio
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import shutil
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import psutil
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import shlex
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import aiohttp
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import json
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import os
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from ...ubridge.hypervisor import Hypervisor
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from .docker_error import *
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from ..base_vm import BaseVM
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from ..adapters.ethernet_adapter import EthernetAdapter
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from ..nios.nio_udp import NIOUDP
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from ...utils.asyncio.telnet_server import AsyncioTelnetServer
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from ...utils.asyncio import wait_for_file_creation
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from ...utils.get_resource import get_resource
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from ...ubridge.ubridge_error import UbridgeError, UbridgeNamespaceError
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import logging
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log = logging.getLogger(__name__)
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class DockerVM(BaseVM):
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"""Docker container implementation.
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:param name: Docker container name
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:param vm_id: Docker VM identifier
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:param project: Project instance
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:param manager: Manager instance
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:param image: Docker image
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:param console: TCP console port
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:param console_type: Console type
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:param aux: TCP aux console port
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"""
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def __init__(self, name, vm_id, project, manager, image,
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console=None, aux=None, start_command=None,
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adapters=None, environment=None, console_type="telnet"):
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super().__init__(name, vm_id, project, manager, console=console, aux=aux, allocate_aux=True, console_type=console_type)
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self._image = image
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self._start_command = start_command
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self._environment = environment
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self._cid = None
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self._ethernet_adapters = []
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self._ubridge_hypervisor = None
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self._temporary_directory = None
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self._telnet_servers = []
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if adapters is None:
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self.adapters = 1
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else:
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self.adapters = adapters
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log.debug(
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"{module}: {name} [{image}] initialized.".format(
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module=self.manager.module_name,
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name=self.name,
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image=self._image))
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def __json__(self):
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return {
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"name": self._name,
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"vm_id": self._id,
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"container_id": self._cid,
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"project_id": self._project.id,
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"image": self._image,
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"adapters": self.adapters,
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"console": self.console,
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"console_type": self.console_type,
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"aux": self.aux,
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"start_command": self.start_command,
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"environment": self.environment,
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"vm_directory": self.working_dir
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}
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def _get_free_display_port(self):
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"""
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Search a free display port
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"""
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display = 100
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if not os.path.exists("/tmp/.X11-unix/"):
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return display
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while True:
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if not os.path.exists("/tmp/.X11-unix/X{}".format(display)):
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return display
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display += 1
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@property
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def start_command(self):
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return self._start_command
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@start_command.setter
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def start_command(self, command):
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command = command.strip()
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if len(command) == 0:
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self._start_command = None
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else:
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self._start_command = command
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@property
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def environment(self):
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return self._environment
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@environment.setter
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def environment(self, command):
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self._environment = command
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@asyncio.coroutine
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def _get_container_state(self):
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"""Returns the container state (e.g. running, paused etc.)
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:returns: state
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:rtype: str
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"""
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result = yield from self.manager.query("GET", "containers/{}/json".format(self._cid))
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if result["State"]["Paused"]:
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return "paused"
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if result["State"]["Running"]:
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return "running"
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return "exited"
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@asyncio.coroutine
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def _get_image_informations(self):
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"""
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:returns: Dictionnary informations about the container image
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"""
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result = yield from self.manager.query("GET", "images/{}/json".format(self._image))
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return result
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def _mount_binds(self, image_infos):
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"""
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:returns: Return the path that we need to map to local folders
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"""
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binds = []
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binds.append("{}:/gns3:ro".format(get_resource("hypervisor/docker/resources")))
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volumes = image_infos.get("ContainerConfig", {}).get("Volumes")
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if volumes is None:
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return binds
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for volume in volumes.keys():
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source = os.path.join(self.working_dir, os.path.relpath(volume, "/"))
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os.makedirs(source, exist_ok=True)
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binds.append("{}:{}".format(source, volume))
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return binds
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@asyncio.coroutine
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def create(self):
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"""Creates the Docker container."""
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try:
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image_infos = yield from self._get_image_informations()
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except DockerHttp404Error:
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log.info("Image %s is missing pulling it from docker hub", self._image)
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yield from self.pull_image(self._image)
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image_infos = yield from self._get_image_informations()
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params = {
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"Hostname": self._name,
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"Name": self._name,
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"Image": self._image,
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"NetworkDisabled": True,
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"Tty": True,
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"OpenStdin": True,
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"StdinOnce": False,
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"HostConfig": {
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"CapAdd": ["ALL"],
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"Privileged": True,
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"Binds": self._mount_binds(image_infos)
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},
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"Volumes": {},
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"Env": [],
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"Cmd": image_infos.get("ContainerConfig", {"Cmd": []})["Cmd"]
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}
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params["Cmd"].insert(0, "/bin/sh")
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params["Cmd"].insert(1, "/gns3/init.sh")
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if self._start_command:
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params["Cmd"] += shlex.split(self._start_command)
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else:
|
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if len(params["Cmd"]) == 2:
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params["Cmd"] += ["/bin/sh"]
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|
||||
if self._environment:
|
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params["Env"] += [e.strip() for e in self._environment.split("\n")]
|
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|
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if self._console_type == "vnc":
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yield from self._start_vnc()
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params["Env"].append("DISPLAY=:{}".format(self._display))
|
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params["HostConfig"]["Binds"].append("/tmp/.X11-unix/:/tmp/.X11-unix/")
|
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|
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result = yield from self.manager.query("POST", "containers/create", data=params)
|
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self._cid = result['Id']
|
||||
log.info("Docker container '{name}' [{id}] created".format(
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name=self._name, id=self._id))
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return True
|
||||
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||||
@asyncio.coroutine
|
||||
def update(self):
|
||||
"""
|
||||
Destroy an recreate the container with the new settings
|
||||
"""
|
||||
# We need to save the console and state and restore it
|
||||
console = self.console
|
||||
state = yield from self._get_container_state()
|
||||
|
||||
yield from self.close()
|
||||
yield from self.create()
|
||||
self.console = console
|
||||
if state == "running":
|
||||
yield from self.start()
|
||||
|
||||
@asyncio.coroutine
|
||||
def start(self):
|
||||
"""Starts this Docker container."""
|
||||
|
||||
state = yield from self._get_container_state()
|
||||
if state == "paused":
|
||||
yield from self.unpause()
|
||||
else:
|
||||
result = yield from self.manager.query("POST", "containers/{}/start".format(self._cid))
|
||||
|
||||
namespace = yield from self._get_namespace()
|
||||
|
||||
yield from self._start_ubridge()
|
||||
|
||||
for adapter_number in range(0, self.adapters):
|
||||
nio = self._ethernet_adapters[adapter_number].get_nio(0)
|
||||
with (yield from self.manager.ubridge_lock):
|
||||
try:
|
||||
yield from self._add_ubridge_connection(nio, adapter_number, namespace)
|
||||
except UbridgeNamespaceError:
|
||||
yield from self.stop()
|
||||
|
||||
# The container can crash soon after the start this mean we can not move the interface to the container namespace
|
||||
logdata = yield from self._get_log()
|
||||
for line in logdata.split('\n'):
|
||||
log.error(line)
|
||||
raise DockerError(logdata)
|
||||
|
||||
if self.console_type == "telnet":
|
||||
yield from self._start_console()
|
||||
|
||||
if self.allocate_aux:
|
||||
yield from self._start_aux()
|
||||
|
||||
self.status = "started"
|
||||
log.info("Docker container '{name}' [{image}] started listen for {console_type} on {console}".format(name=self._name, image=self._image, console=self.console, console_type=self.console_type))
|
||||
|
||||
@asyncio.coroutine
|
||||
def _start_aux(self):
|
||||
"""
|
||||
Start an auxilary console
|
||||
"""
|
||||
|
||||
# We can not use the API because docker doesn't expose a websocket api for exec
|
||||
# https://github.com/GNS3/gns3-gui/issues/1039
|
||||
process = yield from asyncio.subprocess.create_subprocess_exec(
|
||||
"docker", "exec", "-i", self._cid, "/bin/sh", "-i",
|
||||
stdout=asyncio.subprocess.PIPE,
|
||||
stderr=asyncio.subprocess.STDOUT,
|
||||
stdin=asyncio.subprocess.PIPE)
|
||||
server = AsyncioTelnetServer(reader=process.stdout, writer=process.stdin, binary=False, echo=False)
|
||||
self._telnet_servers.append((yield from asyncio.start_server(server.run, self._manager.port_manager.console_host, self.aux)))
|
||||
log.debug("Docker container '%s' started listen for auxilary telnet on %d", self.name, self.aux)
|
||||
|
||||
@asyncio.coroutine
|
||||
def _start_vnc(self):
|
||||
"""
|
||||
Start a VNC server for this container
|
||||
"""
|
||||
|
||||
self._display = self._get_free_display_port()
|
||||
if shutil.which("Xvfb") is None or shutil.which("x11vnc") is None:
|
||||
raise DockerError("Please install Xvfb and x11vnc before using the VNC support")
|
||||
self._xvfb_process = yield from asyncio.create_subprocess_exec("Xvfb", "-nolisten", "tcp", ":{}".format(self._display), "-screen", "0", "1024x768x16")
|
||||
self._x11vnc_process = yield from asyncio.create_subprocess_exec("x11vnc", "-forever", "-nopw", "-display", "WAIT:{}".format(self._display), "-rfbport", str(self.console), "-noncache", "-listen", self._manager.port_manager.console_host)
|
||||
|
||||
x11_socket = os.path.join("/tmp/.X11-unix/", "X{}".format(self._display))
|
||||
yield from wait_for_file_creation(x11_socket)
|
||||
|
||||
@asyncio.coroutine
|
||||
def _start_console(self):
|
||||
"""
|
||||
Start streaming the console via telnet
|
||||
"""
|
||||
class InputStream:
|
||||
|
||||
def __init__(self):
|
||||
self._data = b""
|
||||
|
||||
def write(self, data):
|
||||
self._data += data
|
||||
|
||||
@asyncio.coroutine
|
||||
def drain(self):
|
||||
if not self.ws.closed:
|
||||
self.ws.send_bytes(self._data)
|
||||
self._data = b""
|
||||
|
||||
output_stream = asyncio.StreamReader()
|
||||
input_stream = InputStream()
|
||||
|
||||
telnet = AsyncioTelnetServer(reader=output_stream, writer=input_stream, echo=True)
|
||||
self._telnet_servers.append((yield from asyncio.start_server(telnet.run, self._manager.port_manager.console_host, self.console)))
|
||||
|
||||
ws = yield from self.manager.websocket_query("containers/{}/attach/ws?stream=1&stdin=1&stdout=1&stderr=1".format(self._cid))
|
||||
input_stream.ws = ws
|
||||
|
||||
output_stream.feed_data(self.name.encode() + b" console is now available... Press RETURN to get started.\r\n")
|
||||
|
||||
asyncio.async(self._read_console_output(ws, output_stream))
|
||||
|
||||
@asyncio.coroutine
|
||||
def _read_console_output(self, ws, out):
|
||||
"""
|
||||
Read websocket and forward it to the telnet
|
||||
:params ws: Websocket connection
|
||||
:param out: Output stream
|
||||
"""
|
||||
|
||||
while True:
|
||||
msg = yield from ws.receive()
|
||||
if msg.tp == aiohttp.MsgType.text:
|
||||
out.feed_data(msg.data.encode())
|
||||
else:
|
||||
out.feed_eof()
|
||||
ws.close()
|
||||
break
|
||||
|
||||
def is_running(self):
|
||||
"""Checks if the container is running.
|
||||
|
||||
:returns: True or False
|
||||
:rtype: bool
|
||||
"""
|
||||
state = yield from self._get_container_state()
|
||||
if state == "running":
|
||||
return True
|
||||
return False
|
||||
|
||||
@asyncio.coroutine
|
||||
def restart(self):
|
||||
"""Restart this Docker container."""
|
||||
yield from self.manager.query("POST", "containers/{}/restart".format(self._cid))
|
||||
log.info("Docker container '{name}' [{image}] restarted".format(
|
||||
name=self._name, image=self._image))
|
||||
|
||||
@asyncio.coroutine
|
||||
def stop(self):
|
||||
"""Stops this Docker container."""
|
||||
|
||||
try:
|
||||
if len(self._telnet_servers) > 0:
|
||||
for telnet_server in self._telnet_servers:
|
||||
telnet_server.close()
|
||||
yield from telnet_server.wait_closed()
|
||||
self._telnet_servers = []
|
||||
|
||||
if self._ubridge_hypervisor and self._ubridge_hypervisor.is_running():
|
||||
yield from self._ubridge_hypervisor.stop()
|
||||
|
||||
state = yield from self._get_container_state()
|
||||
if state == "paused":
|
||||
yield from self.unpause()
|
||||
|
||||
# t=5 number of seconds to wait before killing the container
|
||||
try:
|
||||
yield from self.manager.query("POST", "containers/{}/stop".format(self._cid), params={"t": 5})
|
||||
log.info("Docker container '{name}' [{image}] stopped".format(
|
||||
name=self._name, image=self._image))
|
||||
except DockerHttp304Error:
|
||||
# Container is already stopped
|
||||
pass
|
||||
# Ignore runtime error because when closing the server
|
||||
except RuntimeError as e:
|
||||
log.debug("Docker runtime error when closing: {}".format(str(e)))
|
||||
return
|
||||
|
||||
@asyncio.coroutine
|
||||
def pause(self):
|
||||
"""Pauses this Docker container."""
|
||||
yield from self.manager.query("POST", "containers/{}/pause".format(self._cid))
|
||||
log.info("Docker container '{name}' [{image}] paused".format(
|
||||
name=self._name, image=self._image))
|
||||
self.status = "paused"
|
||||
|
||||
@asyncio.coroutine
|
||||
def unpause(self):
|
||||
"""Unpauses this Docker container."""
|
||||
yield from self.manager.query("POST", "containers/{}/unpause".format(self._cid))
|
||||
log.info("Docker container '{name}' [{image}] unpaused".format(
|
||||
name=self._name, image=self._image))
|
||||
self.status = "started"
|
||||
|
||||
@asyncio.coroutine
|
||||
def close(self):
|
||||
"""Closes this Docker container."""
|
||||
|
||||
if not (yield from super().close()):
|
||||
return False
|
||||
|
||||
try:
|
||||
if self.console_type == "vnc":
|
||||
self._x11vnc_process.terminate()
|
||||
self._xvfb_process.terminate()
|
||||
yield from self._x11vnc_process.wait()
|
||||
yield from self._xvfb_process.wait()
|
||||
|
||||
state = yield from self._get_container_state()
|
||||
if state == "paused" or state == "running":
|
||||
yield from self.stop()
|
||||
yield from self.manager.query("DELETE", "containers/{}".format(self._cid), params={"force": 1})
|
||||
log.info("Docker container '{name}' [{image}] removed".format(
|
||||
name=self._name, image=self._image))
|
||||
|
||||
for adapter in self._ethernet_adapters:
|
||||
if adapter is not None:
|
||||
for nio in adapter.ports.values():
|
||||
if nio and isinstance(nio, NIOUDP):
|
||||
self.manager.port_manager.release_udp_port(nio.lport, self._project)
|
||||
# Ignore runtime error because when closing the server
|
||||
except (DockerHttp404Error, RuntimeError) as e:
|
||||
log.debug("Docker error when closing: {}".format(str(e)))
|
||||
return
|
||||
|
||||
@asyncio.coroutine
|
||||
def _add_ubridge_connection(self, nio, adapter_number, namespace):
|
||||
"""
|
||||
Creates a connection in uBridge.
|
||||
|
||||
:param nio: NIO instance or None if it's a dummu interface (if an interface is missing in ubridge you can't see it via ifconfig in the container)
|
||||
:param adapter_number: adapter number
|
||||
:param namespace: Container namespace (pid)
|
||||
"""
|
||||
try:
|
||||
adapter = self._ethernet_adapters[adapter_number]
|
||||
except IndexError:
|
||||
raise DockerError(
|
||||
"Adapter {adapter_number} doesn't exist on Docker container '{name}'".format(name=self.name, adapter_number=adapter_number))
|
||||
|
||||
for index in range(128):
|
||||
if "veth-gns3-ext{}".format(index) not in psutil.net_if_addrs():
|
||||
adapter.ifc = "eth{}".format(str(index))
|
||||
adapter.host_ifc = "veth-gns3-ext{}".format(str(index))
|
||||
adapter.guest_ifc = "veth-gns3-int{}".format(str(index))
|
||||
break
|
||||
if not hasattr(adapter, "ifc"):
|
||||
raise DockerError(
|
||||
"Adapter {adapter_number} couldn't allocate interface on Docker container '{name}'. Too many Docker interfaces already exists".format(
|
||||
name=self.name, adapter_number=adapter_number))
|
||||
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'docker create_veth {hostif} {guestif}'.format(
|
||||
guestif=adapter.guest_ifc, hostif=adapter.host_ifc))
|
||||
|
||||
log.debug("Move container %s adapter %s to namespace %s", self.name, adapter.guest_ifc, namespace)
|
||||
try:
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'docker move_to_ns {ifc} {ns} eth{adapter}'.format(
|
||||
ifc=adapter.guest_ifc, ns=namespace, adapter=adapter_number))
|
||||
except UbridgeError as e:
|
||||
raise UbridgeNamespaceError(e)
|
||||
|
||||
if isinstance(nio, NIOUDP):
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'bridge create bridge{}'.format(adapter_number))
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'bridge add_nio_linux_raw bridge{adapter} {ifc}'.format(
|
||||
ifc=adapter.host_ifc, adapter=adapter_number))
|
||||
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'bridge add_nio_udp bridge{adapter} {lport} {rhost} {rport}'.format(
|
||||
adapter=adapter_number, lport=nio.lport, rhost=nio.rhost,
|
||||
rport=nio.rport))
|
||||
|
||||
if nio.capturing:
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'bridge start_capture bridge{adapter} "{pcap_file}"'.format(
|
||||
adapter=adapter_number, pcap_file=nio.pcap_output_file))
|
||||
|
||||
yield from self._ubridge_hypervisor.send(
|
||||
'bridge start bridge{adapter}'.format(adapter=adapter_number))
|
||||
|
||||
def _delete_ubridge_connection(self, adapter_number):
|
||||
"""Deletes a connection in uBridge.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
"""
|
||||
if not self._ubridge_hypervisor or not self._ubridge_hypervisor.is_running():
|
||||
return
|
||||
|
||||
yield from self._ubridge_hypervisor.send("bridge delete bridge{name}".format(
|
||||
name=adapter_number))
|
||||
|
||||
adapter = self._ethernet_adapters[adapter_number]
|
||||
yield from self._ubridge_hypervisor.send('docker delete_veth {hostif}'.format(hostif=adapter.host_ifc))
|
||||
|
||||
@asyncio.coroutine
|
||||
def _get_namespace(self):
|
||||
result = yield from self.manager.query("GET", "containers/{}/json".format(self._cid))
|
||||
return int(result['State']['Pid'])
|
||||
|
||||
@asyncio.coroutine
|
||||
def adapter_add_nio_binding(self, adapter_number, nio):
|
||||
"""Adds an adapter NIO binding.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
:param nio: NIO instance to add to the slot/port
|
||||
"""
|
||||
try:
|
||||
adapter = self._ethernet_adapters[adapter_number]
|
||||
except IndexError:
|
||||
raise DockerError(
|
||||
"Adapter {adapter_number} doesn't exist on Docker container '{name}'".format(
|
||||
name=self.name, adapter_number=adapter_number))
|
||||
|
||||
adapter.add_nio(0, nio)
|
||||
log.info(
|
||||
"Docker container '{name}' [{id}]: {nio} added to adapter {adapter_number}".format(
|
||||
name=self.name,
|
||||
id=self._id,
|
||||
nio=nio,
|
||||
adapter_number=adapter_number))
|
||||
|
||||
@asyncio.coroutine
|
||||
def adapter_remove_nio_binding(self, adapter_number):
|
||||
"""
|
||||
Removes an adapter NIO binding.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
|
||||
:returns: NIO instance
|
||||
"""
|
||||
try:
|
||||
adapter = self._ethernet_adapters[adapter_number]
|
||||
except IndexError:
|
||||
raise DockerError(
|
||||
"Adapter {adapter_number} doesn't exist on Docker VM '{name}'".format(
|
||||
name=self.name, adapter_number=adapter_number))
|
||||
|
||||
adapter.remove_nio(0)
|
||||
yield from self._delete_ubridge_connection(adapter_number)
|
||||
|
||||
log.info(
|
||||
"Docker VM '{name}' [{id}]: {nio} removed from adapter {adapter_number}".format(
|
||||
name=self.name, id=self.id, nio=adapter.host_ifc,
|
||||
adapter_number=adapter_number))
|
||||
|
||||
@property
|
||||
def adapters(self):
|
||||
"""Returns the number of Ethernet adapters for this Docker VM.
|
||||
|
||||
:returns: number of adapters
|
||||
:rtype: int
|
||||
"""
|
||||
return len(self._ethernet_adapters)
|
||||
|
||||
@adapters.setter
|
||||
def adapters(self, adapters):
|
||||
"""Sets the number of Ethernet adapters for this Docker container.
|
||||
|
||||
:param adapters: number of adapters
|
||||
"""
|
||||
|
||||
self._ethernet_adapters.clear()
|
||||
for adapter_number in range(0, adapters):
|
||||
self._ethernet_adapters.append(EthernetAdapter())
|
||||
|
||||
log.info(
|
||||
'Docker container "{name}" [{id}]: number of Ethernet adapters changed to {adapters}'.format(
|
||||
name=self._name,
|
||||
id=self._id,
|
||||
adapters=adapters))
|
||||
|
||||
@asyncio.coroutine
|
||||
def pull_image(self, image):
|
||||
"""
|
||||
Pull image from docker repository
|
||||
"""
|
||||
log.info("Pull %s from docker hub", image)
|
||||
response = yield from self.manager.http_query("POST", "images/create", params={"fromImage": image})
|
||||
# The pull api will stream status via an HTTP JSON stream
|
||||
content = ""
|
||||
while True:
|
||||
chunk = yield from response.content.read(1024)
|
||||
if not chunk:
|
||||
break
|
||||
content += chunk.decode("utf-8")
|
||||
|
||||
try:
|
||||
while True:
|
||||
content = content.lstrip(" \r\n\t")
|
||||
answer, index = json.JSONDecoder().raw_decode(content)
|
||||
if "progress" in answer:
|
||||
self.project.emit("log.info", {"message": "Pulling image {}:{}: {}".format(self._image, answer["id"], answer["progress"])})
|
||||
content = content[index:]
|
||||
except ValueError: # Partial JSON
|
||||
pass
|
||||
self.project.emit("log.info", {"message": "Success pulling image {}".format(self._image)})
|
||||
|
||||
@asyncio.coroutine
|
||||
def _start_ubridge_capture(self, adapter_number, output_file):
|
||||
"""
|
||||
Start a packet capture in uBridge.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
:param output_file: PCAP destination file for the capture
|
||||
"""
|
||||
|
||||
adapter = "bridge{}".format(adapter_number)
|
||||
if not self._ubridge_hypervisor or not self._ubridge_hypervisor.is_running():
|
||||
raise VMwareError("Cannot start the packet capture: uBridge is not running")
|
||||
yield from self._ubridge_hypervisor.send('bridge start_capture {name} "{output_file}"'.format(name=adapter, output_file=output_file))
|
||||
|
||||
@asyncio.coroutine
|
||||
def _stop_ubridge_capture(self, adapter_number):
|
||||
"""
|
||||
Stop a packet capture in uBridge.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
"""
|
||||
|
||||
adapter = "bridge{}".format(adapter_number)
|
||||
if not self._ubridge_hypervisor or not self._ubridge_hypervisor.is_running():
|
||||
raise VMwareError("Cannot stop the packet capture: uBridge is not running")
|
||||
yield from self._ubridge_hypervisor.send("bridge stop_capture {name}".format(name=adapter))
|
||||
|
||||
@asyncio.coroutine
|
||||
def start_capture(self, adapter_number, output_file):
|
||||
"""
|
||||
Starts a packet capture.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
:param output_file: PCAP destination file for the capture
|
||||
"""
|
||||
|
||||
try:
|
||||
adapter = self._ethernet_adapters[adapter_number]
|
||||
except KeyError:
|
||||
raise DockerError("Adapter {adapter_number} doesn't exist on Docker VM '{name}'".format(name=self.name,
|
||||
adapter_number=adapter_number))
|
||||
|
||||
nio = adapter.get_nio(0)
|
||||
|
||||
if not nio:
|
||||
raise DockerError("Adapter {} is not connected".format(adapter_number))
|
||||
|
||||
if nio.capturing:
|
||||
raise DockerError("Packet capture is already activated on adapter {adapter_number}".format(adapter_number=adapter_number))
|
||||
|
||||
nio.startPacketCapture(output_file)
|
||||
|
||||
if self.status == "started":
|
||||
yield from self._start_ubridge_capture(adapter_number, output_file)
|
||||
|
||||
log.info("Docker VM '{name}' [{id}]: starting packet capture on adapter {adapter_number}".format(name=self.name,
|
||||
id=self.id,
|
||||
adapter_number=adapter_number))
|
||||
|
||||
def stop_capture(self, adapter_number):
|
||||
"""
|
||||
Stops a packet capture.
|
||||
|
||||
:param adapter_number: adapter number
|
||||
"""
|
||||
|
||||
try:
|
||||
adapter = self._ethernet_adapters[adapter_number]
|
||||
except KeyError:
|
||||
raise DockerError("Adapter {adapter_number} doesn't exist on Docker VM '{name}'".format(name=self.name,
|
||||
adapter_number=adapter_number))
|
||||
|
||||
nio = adapter.get_nio(0)
|
||||
|
||||
if not nio:
|
||||
raise DockerError("Adapter {} is not connected".format(adapter_number))
|
||||
|
||||
nio.stopPacketCapture()
|
||||
|
||||
if self.status == "started":
|
||||
yield from self._stop_ubridge_capture(adapter_number)
|
||||
|
||||
log.info("Docker VM '{name}' [{id}]: stopping packet capture on adapter {adapter_number}".format(name=self.name,
|
||||
id=self.id,
|
||||
adapter_number=adapter_number))
|
||||
|
||||
@asyncio.coroutine
|
||||
def _get_log(self):
|
||||
"""
|
||||
Return the log from the container
|
||||
|
||||
:returns: string
|
||||
"""
|
||||
|
||||
result = yield from self.manager.query("GET", "containers/{}/logs".format(self._cid), params={"stderr": 1, "stdout": 1})
|
||||
return result
|
||||
|
||||
@asyncio.coroutine
|
||||
def delete(self):
|
||||
"""
|
||||
Delete the VM (including all its files).
|
||||
"""
|
||||
yield from self.close()
|
||||
yield from super().delete()
|
||||
@@ -0,0 +1,46 @@
|
||||
#!/bin/sh
|
||||
#
|
||||
# Copyright (C) 2016 GNS3 Technologies Inc.
|
||||
#
|
||||
# This program is free software: you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation, either version 3 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
|
||||
#
|
||||
# This script is injected into the container and launch before
|
||||
# the start command of the container
|
||||
#
|
||||
|
||||
# Wait 2 seconds to settle the network interfaces
|
||||
sleep 2
|
||||
|
||||
# /etc/hosts
|
||||
[ -s /etc/hosts ] || cat > /etc/hosts << __EOF__
|
||||
127.0.1.1 $HOSTNAME
|
||||
127.0.0.1 localhost
|
||||
::1 localhost ip6-localhost ip6-loopback
|
||||
fe00::0 ip6-localnet
|
||||
ff00::0 ip6-mcastprefix
|
||||
ff02::1 ip6-allnodes
|
||||
ff02::2 ip6-allrouters
|
||||
__EOF__
|
||||
|
||||
# configure loopback interface
|
||||
ip link set dev lo up
|
||||
|
||||
# configure eth interfaces
|
||||
sed -n 's/^ *\(eth[0-9]*\):.*/\1/p' < /proc/net/dev | while read dev; do
|
||||
ip link set dev $dev up
|
||||
done
|
||||
|
||||
# continue normal docker startup
|
||||
/bin/sh -c "$@"
|
||||
Reference in new issue
Block a user