homeserver/roles/mgrote.zfs_scrub/tasks/main.yml

---
  - name: template unit-template
    become: true
    ansible.builtin.template:
      src: zpool-scrub@.service.j2
      dest: /etc/systemd/system/zpool-scrub@.service
      owner: root
      group: root
      mode: 0644
    register: template_unit

  - name: template timer
    become: true
    ansible.builtin.template:
      src: zpool-scrub@.timer.j2
      dest: "/etc/systemd/system/zpool-scrub@{{ item.name }}.timer"
      owner: root
      group: root
      mode: 0644
    loop: "{{ zfs_extra_zfs_pools }}"
    register: template_timer

  - name: template mail.service
    become: true
    ansible.builtin.template:
      src: zpool-scrub-mail.service.j2
      dest: "/etc/systemd/system/zpool-scrub-mail.service"
      owner: root
      group: root
      mode: 0644
    register: template_mail

  - name: systemctl daemon-reload
    become: yes
    ansible.builtin.systemd:
      daemon_reload: yes
    when:
      - template_unit.changed
      - template_timer.changed

  - name: systemctl enable units - timer
    become: yes
    ansible.builtin.systemd:
      name: "zpool-scrub@{{ item.name }}.timer"
      enabled: yes
      masked: no
    loop: "{{ zfs_extra_zfs_pools }}"
    when:
      - template_unit.changed
      - template_timer.changed

  - name: systemctl enable units - mail
    become: yes
    ansible.builtin.systemd:
      name: "zpool-scrub-mail.service"
      enabled: yes
      masked: no
    when:
      - template_mail

  - name: systemctl start units
    become: yes
    ansible.builtin.systemd:
      name: "zpool-scrub@{{ item.name }}.timer"
      state: restarted
      enabled: yes
    loop: "{{ zfs_extra_zfs_pools }}"
    when:
      - template_unit.changed
      - template_timer.changed

  - name: remove old cronjobs
    become: yes
    ansible.builtin.cron:
      name: zfs-scrub - "{{ item.name }}"
      state: absent
    with_items: "{{ zfs_extra_zfs_pools }}"

  - name: remove proxmox system scrub job #https://forum.proxmox.com/threads/script-sequential-zfs-scrub-for-cron.25124/
    become: true
    ansible.builtin.lineinfile:
      path: /etc/cron.d/zfsutils-linux
      state: absent
      line: '24 0 8-14 * * root if [ $(date +\%w) -eq 0 ] && [ -x /usr/lib/zfs-linux/scrub ]; then /usr/lib/zfs-linux/scrub; fi'