Add a default cluster key and other defaults.

This is needed so that we can properly build devstacks without passing in any other config.

playbooks/roles/mongo_3_0/tasks/main.yml

@@ -270,6 +270,7 @@
   service:
     name: mongod
     state: restarted
+    enabled: true
   when: MONGO_CLUSTERED and initialize_replica_set
   tags:
     - "install"

playbooks/roles/mongo_3_2/defaults/main.yml

@@ -49,10 +49,14 @@ MONGO_BIND_IP: 127.0.0.1
 MONGO_REPL_SET: "rs0"
 MONGO_AUTH: true
 
+MONGO_CLUSTER_KEY: "CHANGEME"
+
 # Cluster member configuration
 # Fed directly into mongodb_replica_set module
 MONGO_RS_CONFIG:
-  members: []
+  _id: '{{ MONGO_REPL_SET }}'
+  members:
+    - host: '127.0.0.1'
 
 # Storage engine options in 3.2: "mmapv1" or "wiredTiger"
 # 3.2 and 3.4 default to wiredTiger

playbooks/roles/mongo_3_2/tasks/main.yml

@@ -104,7 +104,7 @@
 # and connect anonymously next.
 - name: determine if there is a replica set already
   mongodb_rs_status:
-    host: "{{ ansible_default_ipv4['address'] }}"
+    host: "{{ ansible_lo['ipv4']['address'] }}"
     username: "{{ MONGO_ADMIN_USER }}"
     password: "{{ MONGO_ADMIN_PASSWORD }}"
   run_once: true
@@ -116,7 +116,7 @@
 
 - name: Try checking the replica set with no user/pass in case this is a new box
   mongodb_rs_status:
-    host: "{{ ansible_default_ipv4['address'] }}"
+    host: "{{ ansible_lo['ipv4']['address'] }}"
   run_once: true
   register: unauthed_replica_set_already_configured
   when: authed_replica_set_already_configured.failed is defined
@@ -289,7 +289,7 @@
 # checking the replica set status until we see a PRIMARY in the results.
 - name: Wait for the replica set to update and (if needed) elect a primary
   mongodb_rs_status:
-      host: "{{ ansible_default_ipv4['address'] }}"
+      host: "{{ ansible_lo['ipv4']['address'] }}"
       username: "{{ MONGO_ADMIN_USER }}"
       password: "{{ MONGO_ADMIN_PASSWORD }}"
   register: status

util/jenkins/ansible-provision.sh

@@ -127,9 +127,9 @@ fi
 
 if [[ -z $ami ]]; then
   if [[ $server_type == "full_edx_installation" ]]; then
-    ami="ami-c20128d4"
+    ami="ami-aa2f25d1"
   elif [[ $server_type == "ubuntu_16.04" || $server_type == "full_edx_installation_from_scratch" ]]; then
-    ami="ami-20631a36"
+    ami="ami-1d4e7a66"
   fi
 fi