Deployment script to check available CNI plugins and test them

[kshafiee]

No description provided.

[karunchennuri]

@kshafiee Please confirm if the below scope works to meet the expectation.

Scope:

1. Identify existing CNI plugins running on the node
2. Install missing plugins on the node
3. Make CNI-Genie as primary plugin on the node
4. Restart the kubelet
5. Integrate script with 'make test' to run e2e tests, which should succeed.

[kshafiee]

@karunchennuri let's not do step 2 to ensure this same script can run on any node regardless of whether it runs all or only some of the CNI plugins

[karunchennuri]

I think we should make this more comprehensive:

1. create a daemon set that configures conf file and genie bin into /etc/cni/net.d or /opt/cni/bin
2. Restart kubelet so that genie takes precedence over existing cni plugin that cluster might have been configured with.

[karunchennuri]

Pt. 2 above is not needed. Make sure the genie conf is lexicographical precedes any other conf file in the same folder. Kubelet auto-picks every time first file in the /etc/cni/net.d

[karunchennuri]

PR #21 addresses this requirement.

We aren't meeting 1 and 2 yet, for now we expect plugins to be at place.

Created docker image for CNI-Genie.
Documented steps to install cni-genie here.