Merge pull request #2872 from dgoodwin/etcd-embedded-backup

Fix invalid embedded etcd fact in etcd upgrade playbook.

playbooks/common/openshift-cluster/upgrades/etcd/backup.yml

@@ -1,7 +1,7 @@
 - name: Backup etcd
   hosts: etcd_hosts_to_backup
   vars:
-    embedded_etcd: "{{ hostvars[groups.oo_first_master.0].openshift.master.embedded_etcd }}"
+    embedded_etcd: "{{ groups.oo_etcd_to_config | default([]) | length == 0 }}"
     timestamp: "{{ lookup('pipe', 'date +%Y%m%d%H%M%S') }}"
   roles:
   - openshift_facts