---
- hosts: overcloud
  vars:
    metadata:
      name: Check if Ceph dependencies are installed
      description: >
        Prints a message if a ceph dependency is missed
      groups:
        - pre-deployment
    fail_without_deps: true
    tripleo_delegate_to: "{{ groups['overcloud'] | default([]) }}"
    packages:
     - lvm2
  tasks:
    - name: Gather the package facts
      package_facts:
        manager: auto

    - name: Warn about missing dependencies
      warn:
        msg: "If planning to use Ceph, it is necessary to check {{ item[0] }} is installed!"
      when:
        - "'{{ item[0] }}' not in ansible_facts.packages"
        - not fail_without_deps|default(false)|bool
      delegate_to: "{{ item[1] }}"
      with_nested:
        - "{{ packages }}"
        - "{{ tripleo_delegate_to }}"

    - name: Fail if a ceph dependency is missing
      fail:
        msg: "If planning to use Ceph, it is necessary to install {{ item[0] }} package"
      when:
        - "'{{ item[0] }}' not in ansible_facts.packages"
        - fail_without_deps|default(false)|bool
      delegate_to: "{{ item[1] }}"
      with_nested:
        - "{{ packages }}"
        - "{{ tripleo_delegate_to }}"