---
# 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: Update hosts file from ansible inventory
  lineinfile:
    dest: /etc/hosts
    line: "{{ hostvars[item]['ansible_ssh_host'] }} {{ item }}"
    state: present
  with_items:
    - "{{ groups['all_containers'] }}"
    - "{{ groups['hosts'] }}"

---
# 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: Update hosts file remove stale IP entries
  lineinfile:
    dest: /etc/hosts
    regexp: "^{{ hostvars[item]['ansible_ssh_host'] }} (?!{{ item }}$)"
    state: absent
  with_items:
    - "{{ groups['all_containers'] }}"
    - "{{ groups['hosts'] }}"

- name: Update hosts file remove stale Host entries
  lineinfile:
    dest: /etc/hosts
    regexp: "(?<!^{{ hostvars[item]['ansible_ssh_host'] }}) {{ item }}$"
    state: absent
  with_items:
    - "{{ groups['all_containers'] }}"
    - "{{ groups['hosts'] }}"

- name: Update hosts file from ansible inventory
  lineinfile:
    dest: /etc/hosts
    line: "{{ hostvars[item]['ansible_ssh_host'] }} {{ item }}"
    state: present
  with_items:
    - "{{ groups['all_containers'] }}"
    - "{{ groups['hosts'] }}"

Fix hosts file entries - remove duplicates/stale entries
Fix hosts file entries - remove duplicates/stale entries

Adds to tasks in the updatehostsfile play that will do the following to the
/etc/hosts file:
* Removes any entries that match the IP of current host, but with a different
  hostname
* Removes any entries that match the hostname of the current host but with a
  different IP

This will prevent duplicate entries and other /etc/hosts file related
strangeness.

Fixes #13
