- hosts: minio-backups
  gather_facts: true
  tasks:
  - name: ensure mdadm is installed
    package:
      name: mdadm
      state: present
    tags:
    - install
  - name: ensure usb hdd partitions are removed
    command:
      wipefs -fa {{ item }}
    args:
      removes: '{{ item }}-part1'
    loop: '{{ raid_disks }}'
    tags:
    - wipefs
  - name: ensure md raid array exists
    command: >-
      systemd-cat -t mdadm
      mdadm --create --run
      --name={{ md_name }}
      --level=raid1
      --raid-devices=2 
      /dev/md/{{ md_name }}
      {{ raid_disks | join(' ') }}
    args:
      creates: /dev/disk/by-id/md-name-{{ md_name }}
    tags:
    - mdadm
    - mdadm-create
  - name: ensure md-auto-readd script is installed
    copy:
      content: |+
        #!/bin/sh

        main() {
            md_dev=$(readlink -e /dev/disk/by-id/md-name-"$2")
            if [ -z "${md_dev}" ]; then
                printf 'Could not find block device for MD raid %s\n' "$2" >&2
                exit 1
            fi
            exec mdadm --re-add "${md_dev}" "$1"
        }

        main "$@" 2>&1 | logger
      dest: /usr/local/libexec/md-auto-readd
      owner: root
      group: root
      mode: u=rwx,go=rx
    tags:
    - script
  - name: ensure raid auto re-add udev rule exists
    copy:
      content: >+
        ACTION=="add",
        ENV{ID_FS_TYPE}=="linux_raid_member",
        ENV{ID_FS_USAGE}=="raid",
        RUN+="/usr/local/libexec/md-auto-readd $devnode $env{ID_FS_LABEL}"
      dest: /etc/udev/rules.d/80-md-auto-readd.rules
      mode: u=rw,go=r
      owner: root
      group: root
    notify:
    - reload udev
    tags:
    - udev
  handlers:
  - name: reload udev
    command:
      udevadm control --reload