---
# 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.

# Due to https://github.com/ansible/ansible-modules-extras/issues/2577 the
# next two tasks do not use the lxc_container module.
# TODO(odyssey4me): Revisit this once a fix has merged
- name: Check if container exists
  command: "lxc-info -n {{ inventory_hostname }}"
  failed_when: false
  delegate_to: "{{ physical_host }}"
  register: lxc_container_info
  tags:
    - skip_ansible_lint

# Due to https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1591510
# the '-B' option is used, instead of the more understandable
# '--backingstore'.
# TODO(odyssey4me): Revisit this once a fix has merged
- name: Create container (cow)
  command: >
    lxc-copy --snapshot -B {{ lxc_container_backing_store }}
    --name {{ lxc_container_base_name }}
    --newname {{ inventory_hostname }}
    -L {{ properties.container_fs_size | default(lxc_container_fs_size) }}
    --logfile {{ lxc_container_log_path }}/lxc-{{ inventory_hostname }}.log
    --logpriority {{ (debug | bool) | ternary('DEBUG', 'INFO') }}
  delegate_to: "{{ physical_host }}"
  changed_when: false
  when:
    - lxc_container_info.rc != 0

- name: Set the qgroup limits for btrfs backing stores
  block:
    - name: Set the qgroup size|compression limits on machines
      command: "btrfs qgroup limit {{ item }} /var/lib/lxc/{{ inventory_hostname }}"
      changed_when: false
      delegate_to: "{{ physical_host }}"
      with_items:
        - "-e {{ lxc_host_btrfs_qgroup_space_limit }}"
        - "-c {{ lxc_host_btrfs_qgroup_compression_limit }}"
      when:
        - not (lxc_host_btrfs_quota_disabled | bool)
  rescue:
    - name: Notice regarding quota system
      debug:
        msg: >-
          There was an error processing the setup of qgroups. Check the system
          to ensure they're available otherwise disable the quota system by
          setting `lxc_host_btrfs_quota_disabled` to true.
  when:
    - lxc_container_backing_store == 'btrfs'