Fix RabbitMQ server error in bifrost

Update playbooks to ensure rabbitMQ server starts successfully in the
bifrost container.

Change-Id: I73e3d7f2b50221aeff75576d594f64abcea2d43b
Closes-Bug: #1658768

ansible/roles/bifrost/tasks/bootstrap.yml

@@ -3,9 +3,11 @@
   command: >
      docker exec bifrost_deploy
      bash -c '/bifrost/scripts/env-setup.sh && source /bifrost/env-vars
-     && ansible-playbook -vvvv -i /bifrost/playbooks/inventory/localhost
+     && cp /etc/bifrost/rabbitmq-env.conf /etc/rabbitmq/rabbitmq-env.conf &&
+     ansible-playbook -vvvv -i /bifrost/playbooks/inventory/localhost
      /bifrost/playbooks/install.yaml -e @/etc/bifrost/bifrost.yml
      -e @/etc/bifrost/dib.yml -e  skip_package_install=true'
+
 - name: Installing ssh keys
   command: >
      docker exec bifrost_deploy

ansible/roles/bifrost/tasks/config.yml

@@ -19,6 +19,13 @@
     - "dib"
     - "servers"
 
+- name: Copying over rabbitmq config
+  template:
+    src: "{{ item }}"
+    dest: "{{ node_config_directory }}/bifrost/{{ item }}"
+  with_items:
+     - "rabbitmq-env.conf"
+
 - name: Template ssh keys
   template:
     src: "{{ item.src }}"

ansible/roles/bifrost/templates/rabbitmq-env.conf

@@ -0,0 +1,15 @@
+# Defaults to rabbit. This can be useful if you want to run more than one node
+# per machine - RABBITMQ_NODENAME should be unique per erlang-node-and-machine
+# combination. See the clustering on a single machine guide for details:
+# http://www.rabbitmq.com/clustering.html#single-machine
+#NODENAME=rabbit
+
+# By default RabbitMQ will bind to all interfaces, on IPv4 and IPv6 if
+# available. Set this if you only want to bind to one network interface or#
+# address family.
+#NODE_IP_ADDRESS=127.0.0.1
+
+HOME=/var/lib/rabbitmq
+
+# Defaults to 5672.
+#NODE_PORT=5672