CNI Plugin

The CNI Plugin used in MicroShift.

MicroShift uses the Flannel CNI network plugin as lightweight (but less featureful) alternative to OpenShiftSDN or OVNKubernetes.

This provides worker node to worker node pod connectivity via vxlan tunnels.

For single node operation the crio-bridge plugin could be used for additional resource saving.

Both flannel and crio-bridge have no support for NetworkPolicy.