Extract out CNI setup so we can call it from a test
Extract out CNI setup so we can call it from a test

n054/weave,n054/weave,weaveworks/weave,weaveworks/weave,paulbellamy/weave,paulbellamy/weave,paulbellamy/weave,paulbellamy/weave,weaveworks/weave,weaveworks/weave,n054/weave,n054/weave,n054/weave