Contiv network plugin support

[lightcode]

FEATURE REQUEST:

I've made a support of Contiv for Kubespray. Contiv is a network plugin for Docker, Kubernetes, Mesos...

Few highlights of Contiv features:

• It supports vlan, vxlan, BGP and Cisco ACI.
• It allows to connect pods directly on physical networks which is a very demanding feature.
• It support firewall policies (not Kubernetes Network Policies).
• It's provided with a WebUI and a CLI client called netctl.

I've added this network plugin in the playbook. The installation relies on Kubernetes for deployment.

Contiv architecture:

There are three components:

• netplugin setups the network for pods. It's deployed on every nodes
• netmaster is the controller. The playbook install it on every kube-master
• auth_proxy is the UI and handle authentication for users to access the web UI

[Smana]

Hey @lightcode. Maybe i've missed something. Why did you mentionned calico architecture ?

[lightcode]

Hey @Smana, it's just to explain what I've implemented in the playbook.

[GuillaumeMorini]

I think it is a copy/paste error !

[lightcode]

@GuillaumeMorini Indeed, I didn't figure out when I read Smana's message. Yes, it's a pebkac.