--- /dev/null
+"""
+Copyright (c) 2015 SONATA-NFV
+ALL RIGHTS RESERVED.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+
+"""
+Helper module that implements helpers for test implementations.
+"""
+
+import unittest
+import os
+import subprocess
+import docker
+from emuvim.dcemulator.net import DCNetwork
+from emuvim.api.openstack.openstack_api_endpoint import OpenstackApiEndpoint
+from mininet.clean import cleanup
+from mininet.node import Controller
+
+class ApiBaseOpenStack(unittest.TestCase):
+ """
+ Helper class to do basic test setups.
+ s1 -- s2 -- s3 -- ... -- sN
+ """
+
+ def __init__(self, *args, **kwargs):
+ self.net = None
+ self.api = []
+ self.s = [] # list of switches
+ self.h = [] # list of hosts
+ self.d = [] # list of docker containers
+ self.dc = [] # list of data centers
+ self.docker_cli = None
+ super(ApiBaseOpenStack, self).__init__(*args, **kwargs)
+
+ def createNet(
+ self,
+ nswitches=0, ndatacenter=0, nhosts=0, ndockers=0,
+ autolinkswitches=False, controller=Controller, **kwargs):
+ """
+ Creates a Mininet instance and automatically adds some
+ nodes to it.
+
+ Attention, we should always use Mininet's default controller
+ for our tests. Only use other controllers if you want to test
+ specific controller functionality.
+ """
+ self.net = DCNetwork(controller=controller, **kwargs)
+ for i in range(0, ndatacenter):
+ self.api.append(OpenstackApiEndpoint("0.0.0.0", 5000+i))
+
+ # add some switches
+ # start from s1 because ovs does not like to have dpid = 0
+ # and switch name-number is being used by mininet to set the dpid
+ for i in range(1, nswitches+1):
+ self.s.append(self.net.addSwitch('s%d' % i))
+ # if specified, chain all switches
+ if autolinkswitches:
+ for i in range(0, len(self.s) - 1):
+ self.net.addLink(self.s[i], self.s[i + 1])
+ self.net.addLink(self.s[2], self.s[0]) # link switches s1, s2 and s3
+
+ # add some data centers
+ for i in range(0, ndatacenter):
+ self.dc.append(
+ self.net.addDatacenter(
+ 'dc%d' % i,
+ metadata={"unittest_dc": i}))
+ self.net.addLink(self.dc[0].switch, self.s[0]) # link switches dc0.s1 with s1
+ # connect data centers to the endpoint
+ for i in range(0, ndatacenter):
+ self.api[i].connect_datacenter(self.dc[i])
+ self.api[i].connect_dc_network(self.net)
+ # add some hosts
+ for i in range(0, nhosts):
+ self.h.append(self.net.addHost('h%d' % i))
+ # add some dockers
+ for i in range(0, ndockers):
+ self.d.append(self.net.addDocker('d%d' % i, dimage="ubuntu:trusty"))
+
+ def startApi(self):
+ for i in self.api:
+ i.start()
+
+ def stopApi(self):
+ for i in self.api:
+ i.manage.stop_floating_network()
+ i.stop()
+
+ def startNet(self):
+ self.net.start()
+
+ def stopNet(self):
+ self.net.stop()
+
+ def getDockerCli(self):
+ """
+ Helper to interact with local docker instance.
+ """
+ if self.docker_cli is None:
+ self.docker_cli = docker.Client(
+ base_url='unix://var/run/docker.sock')
+ return self.docker_cli
+
+ def getContainernetContainers(self):
+ """
+ List the containers managed by containernet
+ """
+ return self.getDockerCli().containers(filters={"label": "com.containernet"})
+
+ @staticmethod
+ def setUp():
+ pass
+
+
+ def tearDown(self):
+ print('->>>>>>> tear everything down ->>>>>>>>>>>>>>>')
+ self.stopApi() # stop all flask threads
+ self.stopNet() # stop some mininet and containernet stuff
+ cleanup()
+ # make sure that all pending docker containers are killed
+ with open(os.devnull, 'w') as devnull: # kill a possibly running docker process that blocks the open ports
+ subprocess.call("kill $(netstat -npl | grep '5000' | grep -o -e'[0-9]\+/docker' | grep -o -e '[0-9]\+')",
+ stdout=devnull,
+ stderr=devnull,
+ shell=True)
+
+ with open(os.devnull, 'w') as devnull:
+ subprocess.call(
+ "sudo docker rm -f $(sudo docker ps --filter 'label=com.containernet' -a -q)",
+ stdout=devnull,
+ stderr=devnull,
+ shell=True)
+
+
+
+
+