Template out known_users.csv, optionally add groups

inventory/group_vars/k8s-cluster.yml

@@ -39,6 +39,7 @@ kube_cert_group: kube-cert
 kube_log_level: 2
 
 # Users to create for basic auth in Kubernetes API via HTTP
+# Optionally add groups for user
 kube_api_pwd: "changeme"
 kube_users:
   kube:
@@ -47,6 +48,8 @@ kube_users:
   root:
     pass: "{{kube_api_pwd}}"
     role: admin
+    # groups:
+    #   - system:masters