# Create a libvirt volume pool.  This is where we'll be creating
# images for the VMs
# Note: the virt_pool module is not working properly on rhel-7.2
# https://bugs.launchpad.net/tripleo-quickstart/+bug/1597905
- name: ensure libvirt volume path exists
  become: true
  file:
    path: "{{ libvirt_volume_path }}"
    state: directory
    mode: 0755

- name: Check volume pool
  command: >
    virsh pool-uuid "{{ libvirt_volume_pool }}"
  register: pool_check
  ignore_errors: true
  changed_when: false
  environment:
    LIBVIRT_DEFAULT_URI: "{{ libvirt_uri }}"

- name: create the volume pool xml file
  template:
    src: volume_pool.xml.j2
    dest: "{{ working_dir }}/volume_pool.xml"
  when: pool_check is failed

- name: Define volume pool
  command: "virsh pool-define {{ working_dir }}/volume_pool.xml"
  when: pool_check is failed
  environment:
    LIBVIRT_DEFAULT_URI: "{{ libvirt_uri }}"

- name: Start volume pool
  virt_pool:
    command: start
    state: active
    name: "{{ libvirt_volume_pool }}"
    uri: "{{ libvirt_uri }}"

# In some cases the pool_check can pass and the pool xml config is absent
# In this case it is required to dump the xml and redefine the pool.
- name: ensure tripleo-quickstart volume pool is defined
  shell: >
    virsh pool-dumpxml {{ libvirt_volume_pool }} |
    virsh pool-define /dev/stdin
  changed_when: true
  environment:
    LIBVIRT_DEFAULT_URI: "{{ libvirt_uri }}"

- name: Mark volume pool for autostart
  virt_pool:
    name: "{{ libvirt_volume_pool }}"
    autostart: "yes"
    uri: "{{ libvirt_uri }}"

- when: vm_nodes
  environment:
    LIBVIRT_DEFAULT_URI: "{{ libvirt_uri }}"
  block:

    # Create libvirt volumes for the vm hosts.
    - name: Check if vm volumes exist
      command: >
        virsh vol-info --pool '{{ libvirt_volume_pool }}' '{{ item.name }}.qcow2'
      register: vm_vol_check
      ignore_errors: true
      with_items: "{{ vm_nodes }}"

    - name: Create vm vm storage
      command: >
        virsh vol-create-as '{{ libvirt_volume_pool }}'
        '{{ item.item.name }}'.qcow2 '{{ flavors[item.item.flavor].disk }}'G
        --format qcow2
      when:
        - item is failed
      with_items: "{{ vm_vol_check.results }}"

    # Define (but do not start) the vm nodes.  These will be
    # booted later by ironic during the provisioning process.
    - name: Define vm vms
      virt:
        name: "{{ item.name }}"
        command: define
        xml: "{{ lookup('template', 'baremetalvm.xml.j2') }}"
        uri: "{{ libvirt_uri }}"
      with_items: "{{ vm_nodes }}"

    # Create additional blockdevices for each objectstorage flavor node
    # These are sparse files, not using space if unused
    - name: Create additional blockdevice for objectstorage nodes
      command: >
        dd if=/dev/zero of={{ libvirt_volume_path }}/{{ item[0].name }}_{{ item[1] }}.img bs=1 count=0 seek={{ extradisks_size }}
      when: flavors[item[0].flavor].extradisks|default(false)
      with_nested:
        - "{{ vm_nodes }}"
        - "{{ extradisks_list }}"

    - name: Check if additional blockdevices are attached
      command: >
        virsh domblkinfo {{ item[0].name }} {{ libvirt_volume_path }}/{{ item[0].name }}_{{ item[1] }}.img
      when: flavors[item[0].flavor].extradisks|default(false)
      changed_when: false
      ignore_errors: true
      register: vm_extradisks_check
      with_nested:
        - "{{ vm_nodes }}"
        - "{{ extradisks_list }}"

    - name: Attach additional blockdevices to vm objectstorage VMs
      command: >
        virsh attach-disk --config {{ item.item[0].name }} {{ libvirt_volume_path }}/{{ item.item[0].name }}_{{ item.item[1] }}.img {{ item.item[1] }}
      when: item is failed
      with_items: "{{ vm_extradisks_check.results }}"

# Generate the ironic node inventory files.  Note that this
# task *must* occur after the above vm tasks, because if
# `vm_nodes` is defined the template depends on the
# `node_mac_map` variable.
- name: Write ironic node json files
  template:
    src: ../templates/ironic_nodes.json.j2
    dest: "{{ working_dir }}/ironic_nodes.json"