Syntax fixes in the rabbitmq.yml playbook.

playbooks/edx-east/rabbitmq.yml

@@ -17,7 +17,8 @@
   pre_tasks:
     - action: ec2_facts
       when: elb_pre_post
-    - debug: var="{{ ansible_ec2_instance_id }}"
+    - debug:
+        var: ansible_ec2_instance_id
       when: elb_pre_post
     - name: Instance De-register
       local_action: ec2_elb
@@ -32,7 +33,8 @@
     - aws
     - rabbitmq
   post_tasks:
-    - debug: var="{{ ansible_ec2_instance_id }}"
+    - debug:
+        var: ansible_ec2_instance_id
       when: elb_pre_post
     - name: Register instance in the elb
       local_action: ec2_elb
@@ -42,6 +44,6 @@
         region: us-east-1
         state: present
         wait_timeout: 60
-      with_items: ec2_elbs
+      with_items: "{{ ec2_elbs }}"
       become: False
       when: elb_pre_post