1 # Copyright (c) 2015 SONATA-NFV and Paderborn University
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
16 # Neither the name of the SONATA-NFV, Paderborn University
17 # nor the names of its contributors may be used to endorse or promote
18 # products derived from this software without specific prior written
21 # This work has been performed in the framework of the SONATA project,
22 # funded by the European Commission under Grant number 671517 through
23 # the Horizon 2020 and 5G-PPP programmes. The authors would like to
24 # acknowledge the contributions of their colleagues of the SONATA
25 # partner consortium (www.sonata-nfv.eu).
30 from emuvim
.dcemulator
.net
import DCNetwork
31 from emuvim
.api
.rest
.rest_api_endpoint
import RestApiEndpoint
32 from mininet
.clean
import cleanup
33 from mininet
.node
import Controller
36 class SimpleTestTopology(unittest
.TestCase
):
38 Helper class to do basic test setups.
39 s1 -- s2 -- s3 -- ... -- sN
42 def __init__(self
, *args
, **kwargs
):
45 self
.s
= [] # list of switches
46 self
.h
= [] # list of hosts
47 self
.d
= [] # list of docker containers
48 self
.dc
= [] # list of data centers
49 self
.docker_cli
= None
50 super(SimpleTestTopology
, self
).__init
__(*args
, **kwargs
)
54 nswitches
=0, ndatacenter
=0, nhosts
=0, ndockers
=0,
55 autolinkswitches
=False, controller
=Controller
, **kwargs
):
57 Creates a Mininet instance and automatically adds some
60 Attention, we should always use Mininet's default controller
61 for our tests. Only use other controllers if you want to test
62 specific controller functionality.
64 self
.net
= DCNetwork(controller
=controller
, **kwargs
)
65 self
.api
= RestApiEndpoint("127.0.0.1", 5001, self
.net
)
67 # start from s1 because ovs does not like to have dpid = 0
68 # and switch name-number is being used by mininet to set the dpid
69 for i
in range(1, nswitches
+ 1):
70 self
.s
.append(self
.net
.addSwitch('s%d' % i
))
71 # if specified, chain all switches
73 for i
in range(0, len(self
.s
) - 1):
74 self
.net
.addLink(self
.s
[i
], self
.s
[i
+ 1])
75 # add some data centers
76 for i
in range(0, ndatacenter
):
78 self
.net
.addDatacenter(
80 metadata
={"unittest_dc": i
}))
81 # connect data centers to the endpoint
82 for i
in range(0, ndatacenter
):
83 self
.api
.connectDatacenter(self
.dc
[i
])
85 for i
in range(0, nhosts
):
86 self
.h
.append(self
.net
.addHost('h%d' % i
))
88 for i
in range(0, ndockers
):
89 self
.d
.append(self
.net
.addDocker('d%d' %
90 i
, dimage
="ubuntu:trusty"))
104 def getDockerCli(self
):
106 Helper to interact with local docker instance.
108 if self
.docker_cli
is None:
109 self
.docker_cli
= docker
.APIClient(
110 base_url
='unix://var/run/docker.sock')
111 return self
.docker_cli
113 def getContainernetContainers(self
):
115 List the containers managed by containernet
117 return self
.getDockerCli().containers(
118 filters
={"label": "com.containernet"})
127 # make sure that all pending docker containers are killed
128 with
open(os
.devnull
, 'w') as devnull
:
130 "sudo docker rm -f $(sudo docker ps --filter 'label=com.containernet' -a -q)",