Merge pull request #7070 from JoelKle/fix_rerun_ability

Installer - local_docker - fixed the ability to rerun the playbook

Reviewed-by: https://github.com/apps/softwarefactory-project-zuul

installer/roles/kubernetes/tasks/main.yml

@@ -4,6 +4,7 @@
     broadcast_websocket_secret: "{{ lookup('password', '/dev/null', length=128) }}"
   run_once: true
   no_log: true
+  when: broadcast_websocket_secret is not defined
 
 - fail:
     msg: "Only set one of kubernetes_context or openshift_host"