---
# Copyright 2018, 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: Gather variables for each operating system
  include_vars: "{{ item }}"
  with_first_found:
    - "{{ ansible_distribution | lower }}-{{ ansible_distribution_version | lower }}.yml"
    - "{{ ansible_distribution | lower }}-{{ ansible_distribution_major_version | lower }}.yml"
    - "{{ ansible_os_family | lower }}-{{ ansible_distribution_major_version | lower }}.yml"
    - "{{ ansible_distribution | lower }}.yml"
    - "{{ ansible_os_family | lower }}-{{ ansible_distribution_version.split('.')[0] }}.yml"
    - "{{ ansible_os_family | lower }}.yml"
  tags:
    - always

- name: Ensure beat is installed
  package:
    name: "{{ filebeat_distro_packages }}"
    state: "{{ elk_package_state | default('present') }}"
    update_cache: "{{ (ansible_pkg_mgr == 'apt') | ternary('yes', omit) }}"
  register: _package_task
  until: _package_task is success
  retries: 3
  delay: 2
  when:
    - ansible_architecture == 'x86_64'
  notify:
    - Enable and restart filebeat
  tags:
    - package_install

- name: Ensure beat is installed (aarch64)
  apt:
    deb: 'https://object-storage-ca-ymq-1.vexxhost.net/swift/v1/8709ca2640344a4ba85cba0a1d6eea69/aarch64/filebeat-6.5.0-arm64.deb'
  when:
    - ansible_pkg_mgr == 'apt'
    - ansible_architecture == 'aarch64'
  notify:
    - Enable and restart filebeat
  tags:
    - package_install

- name: Create filebeat systemd service config dir
  file:
    path: "/etc/systemd/system/filebeat.service.d"
    state: "directory"
    group: "root"
    owner: "root"
    mode: "0755"
  when:
    - ansible_service_mgr == 'systemd'

- name: Apply systemd options
  template:
    src: "{{ item.src }}"
    dest: "/etc/systemd/system/filebeat.service.d/{{ item.dest }}"
    mode: "0644"
  when:
    - ansible_service_mgr == 'systemd'
  with_items:
    - src: "systemd.general-overrides.conf.j2"
      dest: "filebeat-overrides.conf"
  notify:
    - Enable and restart filebeat

- name: Drop Filebeat conf file
  template:
    src: "filebeat.yml.j2"
    dest: "/etc/filebeat/filebeat.yml"
  notify:
    - Enable and restart filebeat

- include_role:
    name: elastic_ilm
  when: ilm_policy.keys() | length > 0

- name: Run the beat setup role
  include_role:
    name: elastic_beat_setup
  when:
    - (groups['kibana'] | length) > 0
  vars:
    elastic_beat_name: "filebeat"

- name: Force beat handlers
  meta: flush_handlers

- name: set filebeat service state (upstart)
  service:
    name: "filebeat"
    state: "{{ filebeat_service_state }}"
    enabled: "{{ filebeat_service_state in ['running', 'started', 'restarted'] }}"
  when:
    - ansible_service_mgr == 'upstart'
    - filebeat_service_state in ['started', 'stopped']

- name: set filebeat service state (systemd)
  systemd:
    name: "filebeat"
    state: "{{ filebeat_service_state }}"
    enabled: "{{ filebeat_service_state in ['running', 'started', 'restarted'] }}"
  when:
    - ansible_service_mgr == 'systemd'
    - filebeat_service_state in ['started', 'stopped']