Merge pull request #1218 from edx/han/backup-server-vars

Moving create backup of server vars

playbooks/roles/edx_ansible/tasks/deploy.yml

@@ -34,11 +34,15 @@
     dest={{ COMMON_CFG_DIR }}/playbooks
     state=link
 
+- name: check to see if server vars already exists
+  stat: path={{ edx_ansible_var_file }}
+  register: edx_ansible_var_file_exists
+
 - name: create backup of server vars
   copy: >
     src={{ edx_ansible_var_file }}
     dest={{ edx_ansible_var_file }}.old
-  when: EDX_ANSIBLE_DUMP_VARS
+  when: edx_ansible_var_file_exists.stat.exists
 
 - name: dump all vars to yaml
   template: src=dumpall.yml.j2 dest={{ edx_ansible_var_file }} mode=0600