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path: root/roles/storage/zfs/pools/tasks/main.yml
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---
- name: configure arc size
  when: zfs_arc_size is defined
  copy:
    content: |
      options zfs zfs_arc_min={{ zfs_arc_size.min | human_to_bytes }}
      options zfs zfs_arc_max={{ zfs_arc_size.max | human_to_bytes }}
    dest: /etc/modprobe.d/zfs.conf

- name: install zfs modules
  include_tasks: "{{ ansible_distribution }}.yml"

- name: load zfs kernel module
  modprobe:
    name: zfs
    state: present

- name: install zed and zfs file system utilities
  apt:
    name:
    - zfsutils-linux
    - zfs-zed
    state: present

- name: enable systemd mount-generator
  when: zfs_use_systemd_mount_generator
  import_tasks: enable-systemd-mount-generator.yml

- name: gather zpool facts
  zpool_facts:

- name: generate list of existing pools
  set_fact:
    zfs_existing_pools: "{{ ansible_zfs_pools | map(attribute='name') | list }}"

- name: try to import existing pools
  loop: "{{ zfs_pools | dict2items }}"
  loop_control:
    label: "{{ item.key }}"
  when: item.key not in zfs_existing_pools
  command: "zpool import{% for dev in (item.value.create_vdevs.split(' ') | select('match', '^/dev/') ) %} -d {{ dev }}{% endfor %} -f {{ item.key }}"
  register: zfs_import_result
  failed_when:
  - zfs_import_result.rc == 0
  - (zfs_import_result.stderr_lines | reject("regex", " no such pool available$") | list | length) > 0
  changed_when:
  - (zfs_import_result.stderr_lines | length) == 0

- name: gather zpool facts (again)
  zpool_facts:

- name: generate list of existing pools (again)
  set_fact:
    zfs_existing_pools: "{{ ansible_zfs_pools | map(attribute='name') | list }}"

- name: create pools
  loop: "{{ zfs_pools | dict2items }}"
  loop_control:
    label: "{{ item.key }}"
  when: item.key not in zfs_existing_pools
  command: "zpool create -m {{ item.value.mountpoint }} {% for prop, value in (item.value.properties | default(zfs_pool_default_properties)).items() %}-o {{ prop }}={{ value }} {% endfor %}{{ item.key }} {{ item.value.create_vdevs }}"