anchor.diff:            - node-status
             - check
         haproxy-openstack:
  -        policy: majority_of_members
  +        policy: availability_of_members
           group_by: hostname
           members:
             - check
         apache:
  -        policy: majority_of_members
  +        policy: availability_of_members
           group_by: hostname
           members:
             - worker
             - check
         memcached-service:
  -        policy: majority_of_members
  +        policy: availability_of_members
           group_by: hostname
           members:
             - check
  
positive.code:         members:
            - health
        elasticsearch-service:
          policy: majority_of_members
          group_by: hostname
          members:
            - check
  
negative.code:               function: percent
        - status: okay
  
      # A policy that is used to derive a cluster status based
      # on the status okay or down status for its members.
      availability_of_members:
        - status: down
          trigger:
  