---
# 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
  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: Check for apache
  stat:
    path: /etc/apache2
  register: apache2

- name: Check for auditd
  stat:
    path: /etc/audit
  register: audit

- name: Check for ceph
  stat:
    path: /var/log/ceph
  register: ceph

- name: Check for cinder
  stat:
    path: /var/log/cinder
  register: cinder

- name: Check for glance
  stat:
    path: /var/log/glance
  register: glance

- name: Check for heat
  stat:
    path: /var/log/heat
  register: heat

- name: Check for horizon
  stat:
    path: /var/log/horizon
  register: horizon

- name: Check for httpd
  stat:
    path: /var/log/httpd
  register: httpd

- name: Check for keystone
  stat:
    path: /var/log/keystone
  register: keystone

- name: Check for mysql
  stat:
    path: /var/lib/mysql
  register: mysql

- name: Check for neutron
  stat:
    path: /var/log/neutron
  register: neutron

- name: Check for nginx
  stat:
    path: /var/log/nginx
  register: nginx

- name: Check for nova
  stat:
    path: /var/log/nova
  register: nova

- name: Check for octavia
  stat:
    path: /var/log/octavia
  register: octavia

- name: Check for swift
  stat:
    path: /var/log/swift
  register: swift

- name: Check for rabbitmq
  stat:
    path: /var/lib/rabbitmq
  register: rabbitmq

- name: Check for designate
  stat:
    path: /var/log/designate
  register: designate

- name: Check for osquery
  stat:
    path: /var/log/osquery/osqueryd.results.log
  register: osquery

- name: Set discovery facts
  set_fact:
    apache_enabled: "{{ (apache2.stat.exists | bool) or (httpd.stat.exists | bool) }}"
    nginx_enabled: "{{ nginx.stat.exists | bool }}"
    auditd_enabled: "{{ audit.stat.exists | bool }}"
    mysql_enabled: "{{ (mysql.stat.exists | bool) or (inventory_hostname in groups['galera_all'] | default([])) }}"
    ceph_enabled: "{{ (ceph.stat.exists | bool) or (inventory_hostname in groups['ceph_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*ceph.*') | list | length) > 0) }}"
    cinder_enabled: "{{ (cinder.stat.exists | bool) or (inventory_hostname in groups['cinder_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*cinder.*') | list | length) > 0) }}"
    glance_enabled: "{{ (glance.stat.exists | bool) or (inventory_hostname in groups['glance_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*glance.*') | list | length) > 0) }}"
    heat_enabled: "{{ (heat.stat.exists | bool) or (inventory_hostname in groups['heat_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*heat.*') | list | length) > 0) }}"
    horizon_enabled: "{{ (horizon.stat.exists | bool) or (inventory_hostname in groups['horizon_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*horizon.*') | list | length) > 0) }}"
    keystone_enabled: "{{ (keystone.stat.exists | bool) or (inventory_hostname in groups['keystone_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*keystone.*') | list | length) > 0) }}"
    neutron_enabled: "{{ (neutron.stat.exists | bool) or (inventory_hostname in groups['neutron_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*neutron.*') | list | length) > 0) }}"
    nova_enabled: "{{ (nova.stat.exists | bool) or (inventory_hostname in groups['nova_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*nova.*') | list | length) > 0) }}"
    octavia_enabled: "{{ (octavia.stat.exists | bool) or (inventory_hostname in groups['octavia_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*octavia.*') | list | length) > 0) }}"
    swift_enabled: "{{ (swift.stat.exists | bool) or (inventory_hostname in groups['swift_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*swift.*') | list | length) > 0) }}"
    rabbitmq_enabled: "{{ (rabbitmq.stat.exists | bool) or (inventory_hostname in groups['rabbitmq_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*rabbit.*') | list | length) > 0) }}"
    designate_enabled: "{{ (designate.stat.exists | bool) or (inventory_hostname in groups['designate_all'] | default([])) or (((groups[inventory_hostname + '-host_containers'] | default([])) | select('match', '.*designate.*') | list | length) > 0) }}"
    osquery_enabled: "{{ osquery.stat.exists | bool }}"

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

- include_tasks: filebeat_setup.yml

- name: Force beat handlers
  meta: flush_handlers