---
- name: fail on unsupported system
  fail:
    msg: "System not supported {{ ansible_system }}"
  when: ansible_system not in ['Linux']

- name: fail on unsupported architecture
  fail:
    msg: "Architecture not supported {{ ansible_architecture }}"
  when: ansible_architecture not in ['x86_64', 'ppc64le', 'armv7l', 'aarch64']

- name: fail on unsupported distribution
  fail:
    msg: "Distribution not supported {{ ansible_os_family }}"
  when: ansible_os_family not in ['Debian', 'RedHat', 'ClearLinux', 'Suse']

- name: red hat based systems tasks
  when:
    - ceph_repository == 'rhcs'
    - ansible_distribution == 'Red Hat Enterprise Linux'
  block:
    - name: fail on unsupported distribution for red hat ceph storage
      fail:
        msg: "Distribution not supported {{ ansible_distribution_version }} by Red Hat Ceph Storage, only RHEL >= 7.3"
      when: ansible_distribution_version | version_compare('7.3', '<')

    - name: subscription manager related tasks
      when: ceph_repository_type == 'cdn'
      block:
        - name: determine if node is registered with subscription-manager
          command: subscription-manager identity
          register: subscription
          changed_when: false
          failed_when: false
          check_mode: no

        - name: fail on unregistered red hat rhcs linux
          fail:
            msg: "You must register your machine with subscription-manager"
          when: subscription.rc != '0'

- name: fail on unsupported distribution for ubuntu cloud archive
  fail:
    msg: "Distribution not supported by Ubuntu Cloud Archive: {{ ansible_distribution }}"
  when:
    - ceph_repository == 'uca'
    - ansible_distribution != 'Ubuntu'

- name: fail on unsupported openSUSE distribution
  fail:
    msg: "Distribution not supported: {{ ansible_distribution }}"
  when:
    - ansible_distribution == 'openSUSE Leap'
    - ansible_distribution_version is version_compare('42.3', '<')

- name: fail on unsupported ansible version (1.X)
  fail:
    msg: "Ansible version must be >= 2.8.x, please update!"
  when: ansible_version.major|int < 2

- name: fail on unsupported ansible version
  fail:
    msg: "Ansible version must be 2.8!"
  when:
    - ansible_version.major|int == 2
    - ansible_version.minor|int != 8

- name: fail if systemd is not present
  fail:
    msg: "Systemd must be present"
  when: ansible_service_mgr != 'systemd'

- name: check if iscsi gateways is target on supported distros and versions
  block:
    - name: fail on unsupported distribution for iscsi gateways
      fail:
        msg: "iSCSI gateways can only be deployed on Red Hat Enterprise Linux, CentOS or Fedora"
      when: ansible_distribution not in ['RedHat', 'CentOS', 'Fedora']

    - name: fail on unsupported distribution version for iscsi gateways
      command: 'grep -q {{ item }}=m {% if is_atomic|bool %}/usr/lib/ostree-boot{% else %}/boot{% endif %}/config-{{ ansible_kernel }}'
      register: iscsi_kernel
      changed_when: false
      failed_when: iscsi_kernel.rc != 0
      loop:
        - CONFIG_TARGET_CORE
        - CONFIG_TCM_USER2
        - CONFIG_ISCSI_TARGET
      when: ansible_distribution in ['RedHat', 'CentOS']
  when: iscsi_gw_group_name in group_names