edx-west/{prod,stage}-jumpbox: barebones playbooks

Just to facilitate user updates to the jumpboxes.

playbooks/edx-west/prod-jumpbox.yml

 - hosts: tag_Name_jumpbox_prod
   sudo: True
   vars_files:
-    - "{{ secure_dir }}/vars/users.yml"
+    - "{{ secure_dir }}/vars/users_jumpbox.yml"
   vars:
     secure_dir: '../../../configuration-secure/ansible'
-    # this indicates the path to site-specific (with precedence)
-    # things like nginx template files
     local_dir:  '../../../configuration-secure/ansible/local'
-
   roles:
-    - common
\ No newline at end of file
+    - common

playbooks/edx-west/stage-jumpbox.yml

+- hosts: tag_Name_jumpbox_stage
+  sudo: True
+  vars_files:
+    - "{{ secure_dir }}/vars/users_jumpbox.yml"
+  vars:
+    secure_dir: '../../../configuration-secure/ansible'
+    local_dir:  '../../../configuration-secure/ansible/local'
+  roles:
+    - common