---
# Copyright 2017, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

- name: Nova compute fixes
  hosts: "nova_compute"
  gather_facts: false
  user: root
  vars:
    nova_system_user_name: nova
    nova_system_home_folder: "/var/lib/{{ nova_system_user_name }}"
    nova_libvirt_save_path: "{{ nova_system_home_folder }}/save"
    nova_qemu_user: libvirt-qemu
    nova_qemu_group: kvm
  tasks:
    - name: Check the state of the qemu save directory
      stat:
        path: "/var/lib/libvirt/qemu/save"
      failed_when: false
      register: _qemu_save_dir

    - name: Check the state of the nova save directory
      stat:
        path: "{{ nova_libvirt_save_path }}"
      failed_when: false
      register: _nova_save_dir

    - name: Create nova save directory
      file:
        dest: "{{ nova_libvirt_save_path }}"
        state: "directory"
        owner: "nova"
        group: "nova"
      when: not _nova_save_dir.stat.exists | bool

    - name: Index saved qemu items
      command: "ls -1 /var/lib/libvirt/qemu/save"
      changed_when: false
      register: _qemu_save_items

    - name: Move the existing save directory to nova_libvirt_save_path
      shell: "mv /var/lib/libvirt/qemu/save/{{ item }} {{ nova_libvirt_save_path }}/{{ item }}"
      with_items: "{{ _qemu_save_items.stdout_lines }}"
      when:
        - _qemu_save_dir.stat.isdir | bool
        - _qemu_save_items.stdout_lines | length > 0

    - name: Remove qemu save directory
      file:
        dest: "/var/lib/libvirt/qemu/save"
        state: "absent"
      when: _qemu_save_dir.stat.isdir | bool

    - name: Symlink qemu save dir to nova_libvirt_save_path
      file:
        src: "{{ nova_libvirt_save_path }}"
        dest: "/var/lib/libvirt/qemu/save"
        state: link
        owner: "{{ nova_qemu_user }}"
        group: "{{ nova_qemu_group }}"