---
# Copyright 2016, 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: Set hostname alias for local lookup compatibility
  hosts: "hosts"
  gather_facts: true
  tasks:
    - name: Update Alias hostnames
      lineinfile:
        dest: /etc/hosts
        insertafter: "^127.0.0.1"
        regexp: "^127.0.1.1"
        line: "127.0.1.1 {{ rfc_1034_1035_name }}.{{ domain_name }} {{ rfc_1034_1035_name }} {{ inventory_hostname }} {{ ansible_hostname }}"
        state: present
      register: result1
      when:
        - rfc_1034_1035_name != inventory_hostname
        - rfc_1034_1035_name != ansible_hostname
    - name: Update Alias hostnames
      lineinfile:
        dest: /etc/hosts
        insertafter: "^127.0.0.1"
        regexp: "^127.0.1.1"
        line: "127.0.1.1 {{ rfc_1034_1035_name }}.{{ domain_name }} {{ rfc_1034_1035_name }} {{ ansible_hostname }}"
        state: present
      register: result2
      when:
        - rfc_1034_1035_name == inventory_hostname
        - rfc_1034_1035_name != ansible_hostname
    - name: Update Alias hostnames
      lineinfile:
        dest: /etc/hosts
        insertafter: "^127.0.0.1"
        regexp: "^127.0.1.1"
        line: "127.0.1.1 {{ rfc_1034_1035_name }}.{{ domain_name }} {{ rfc_1034_1035_name }} {{ inventory_hostname }}"
        state: present
      when:
        - result1 | skipped
        - result2 | skipped
  vars:
    rfc_1034_1035_name: "{{ inventory_hostname | replace('_', '-') }}"
    domain_name: "{{ openstack_domain|default('openstack.local') }}"