sql back to centos

Former-commit-id: 9d58dfab

CICD/heat/gc_HOT.yaml

@@ -69,12 +69,12 @@ resources:
      list_join: [ '-', [ { get_param: "OS::stack_name" }, 'sql0' ]]
     availability_zone: { get_param: avz }
     flavor: m3.xsmall
-    image: { get_param: ubuntu_1804_image_id }
+    image: { get_param: centos_7_image_id }
     key_name: { get_param: ssh_key }
     security_groups: [ { get_param: SSHMonashSecGroupID }, { get_param: SlurmSecGroupID }, { get_param: MySQLSecGroupID }, { get_param: NFSSecGroupID } ]
     metadata:
      ansible_host_groups: [ SQLNodes, NFSNodes ]
-     ansible_ssh_user: ubuntu
+     ansible_ssh_user: ec2-user
      project_name: { get_param: project_name }
     networks:
       - network: { get_param: NetID }