Verify valid settings before deploy (#1705)

Also fix yaml lint issues

Fixes #1703

roles/kubernetes-apps/rotate_tokens/tasks/main.yml

@@ -1,6 +1,6 @@
 ---
-#FIXME(mattymo): Exclude built in secrets that were automatically rotated,
-#instead of filtering manually
+# FIXME(mattymo): Exclude built in secrets that were automatically rotated,
+# instead of filtering manually
 - name: Rotate Tokens | Get all serviceaccount tokens to expire
   shell: >-
     {{ bin_dir }}/kubectl get secrets --all-namespaces