system-config/playbooks/service-zookeeper.yaml

# We exclude !disabled because we want to run the noop task on all
# of the hosts in the group, not just the active ones, because we're
# pulling their hostvars from the fact cache. They don't stop being
# zookeeper servers just because they are disabled.
- hosts: "zookeeper"
  tasks:
    - name: Use the host so we have access to its hostvars
      debug:
        msg: "This debug statement is to get us access to hostvars"

- hosts: "zookeeper:!disabled"
  name: "Configure Zookeeper"
  serial: 1
  roles:
    - iptables
    - install-docker
    - zookeeper