# Update an existing deployment.
  kubectl get deployment -o yaml | istioctl kube-inject -f - | kubectl apply -f -

  # Capture cluster configuration for later use with kube-inject
  kubectl -n istio-system get cm istio-sidecar-injector  -o jsonpath="{.data.config}" > /tmp/inj-template.tmpl
  kubectl -n istio-system get cm istio -o jsonpath="{.data.mesh}" > /tmp/mesh.yaml