Utils for installing/cleaning Istio multi-cluster installations.
Install Istion on each cluster as a primary cluster and connects them all with remote secrets:
./setup.sh ctx1 ctx2
Removes namespaces, CRDs, webhooks, etc.
./cleanup.sh ctx1 ctx2
Used to run the helloworld based verification... only works for 2 clusters; needs rewrite to match setup/cleanup.
Used to change the image for istiod in each cluster.. needs rewrite