CODEWITHSUNDEEP
pythonnetwork-programmingsdnonos
Luis Guerra
Luis Guerra

Reputation: 1

Is it possible to build a virtual network with running docker containers in ONOS SDN?

I am trying to build a dynamic virtual network with ONOS SDN. Until this point I successfully deployed a network with ONOS virtual switches and virtual hosts connected to them with Mininet. But I was trying and wondering how I could connect running docker containers to those switches, in order to build a network of containers/vms.

I accomplished to run (through Python scripts) some topologies that were present on ONOS SDN pre built VM. I am trying to enable a connection between some docker container (or even a VM) to a virtual SDN switch.

Is it possible to do something like this (connecting 2 ubuntu containers and 1 postgresql db container to the switches):

from mininet.net import Mininet
from mininet.node import Controller, Docker, OVSSwitch
from mininet.cli import CLI
from mininet.log import setLogLevel

setLogLevel('info')

net = Mininet(controller=Controller, switch=OVSSwitch, autoSetMacs=True)


s1 = net.addSwitch('s1')
s2 = net.addSwitch('s2')
s3 = net.addSwitch('s3')

ubuntu1 = net.addHost('ubuntu1', cls=Docker, dimage='ubuntu:latest', privileged=True)
ubuntu2 = net.addHost('ubuntu2', cls=Docker, dimage='ubuntu:latest', privileged=True)


postgres = net.addHost('postgres', cls=Docker, dimage='postgres:latest', privileged=True)


net.addLink(ubuntu1, s1)
net.addLink(ubuntu2, s3)
net.addLink(postgres, s2)

net.addLink(s1, s2)
net.addLink(s2, s3)

net.start()
controller_ip = '127.0.0.1'
controller_port = 6653
c0 = net.addController('c0', controller=RemoteController, ip=controller_ip, port=controller_port)
s1.start([c0])
s2.start([c0])
s3.start([c0])


CLI(net)


net.stop()

Upvotes: -2

Views: 522

Answers (1)

D Arjona
D Arjona

Reputation: 56

Something that needs to be considered is that by default each Docker container has its own IP address, which may be used by the host machine to reach each container and is obtained using the following command:

sudo docker inspect <container_name> | grep -i ipaddress

Also consider that Docker supports different network configurations. There is a Youtube video that explains them.

Upvotes: 0

Related Questions