---
# Copyright 2014, 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: Check the state of the default qemu save directory
  stat:
    path: "/var/lib/libvirt/qemu/save"
  until: _qemu_save_dir.stat.exists | bool
  retries: 5
  delay: 10
  register: _qemu_save_dir

- name: Check if the qemu save directory is empty
  shell: 'ls -1A /var/lib/libvirt/qemu/save'
  register: _qemu_save_dir_contents

- name: Move the existing save directory to nova_libvirt_save_path
  command: "mv /var/lib/libvirt/qemu/save {{ nova_libvirt_save_path }}"
  when:
    - _qemu_save_dir.stat.isdir is defined
    - _qemu_save_dir.stat.isdir | bool
    - _qemu_save_dir_contents.stdout_lines | length == 0

- name: Create the new save directory
  file:
    path: "{{ nova_libvirt_save_path }}"
    state: directory

- 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 }}"

- name: Install pip packages
  pip:
    name: "{{ nova_compute_pip_packages | join(' ') }}"
    state: latest
    virtualenv: "{{ nova_bin | dirname }}"
    virtualenv_site_packages: "no"
    extra_args: "{{ pip_install_options|default('') }}"
  register: install_packages
  until: install_packages|success
  retries: 5
  delay: 2
  when:
    - nova_get_venv | failed or nova_developer_mode | bool
  tags:
    - nova-install
    - nova-pip-packages

# TODO(cloudnull): use a package from pypi when its made available
# This is being done because guestfs is not an installable package at this time.
#  There is a change in the works to upload the guestfs package to pypi in the
#  future however that's not been done as of yet.
#  related thread http://lists.openstack.org/pipermail/openstack-dev/2015-July/070927.html
#  link on bug about libguestfs on pypi https://bugzilla.redhat.com/show_bug.cgi?id=1075594
- name: Link guestfs into the venv
  file:
    src: "{{ item.name }}"
    dest: "{{ nova_bin | dirname }}/lib/python2.7/{{ item.name | basename }}"
    state: "{{ item.state }}"
    force: "yes"
  with_items:
    - { state: link, name: "/usr/lib/python2.7/dist-packages/libguestfsmod.so" }
    - { state: link, name: "/usr/lib/python2.7/dist-packages/guestfs.py" }
  tags:
    - nova-install
    - nova-pip-packages