Initial take at the pieces neede for the persistanec layer.

playbooks/edx-persistance.yml

+---
+
+# Example sandbox configuration
+# for single server community
+# installs
+
+- name: Configure instance(s)
+  hosts: all
+  sudo: True
+  gather_facts: True
+  roles:
+    # This install mysql and creates users.
+    - role: edxlocal
+    - role: memcache
+    - role: mongo
+    - { role: 'rabbitmq', rabbitmq_ip: '127.0.0.1' }
+    - oraclejdk
+    - role: elasticsearch
+    - edx_ansible
+    - role: datadog
+      when: COMMON_ENABLE_DATADOG
+    - role: splunkforwarder
+      when: COMMON_ENABLE_SPLUNKFORWARDER
+    - role: newrelic
+      when: COMMON_ENABLE_NEWRELIC