---

- name: Example of how to install and configure Logstash
  hosts: all
  vars:
    # Change the JVM heap size
    logstash_jvm_options_x_ms: 256m
    logstash_jvm_options_x_mx: 512m
    # Bind to all network interfaces
    logstash_config_http_data: 0.0.0.0
    # Change the port number range
    logstash_config_http__custom:
      port: 9800-9900
    # Customize the main Logstash config
    logstashs_config__custom:
      # Increase the number of workers
      pipeline:
        workers: 3
    # Create events
    logstash_pipeline:
      # This is the file name which will be created in /etc/logstash/conf.d
      apache:
        # Here starts the Logstash configuration for that file
        - :input:
            - :file:
                path: /var/log/httpd/access_log
                start_position: beginning
        - :filter:
            - ':if [path] =~ "access"':
                - :mutate:
                    replace:
                      type: apache_access
                - :grok:
                    match:
                      message: "%{COMBINEDAPACHELOG}"
                - :date:
                    match:
                      - timestamp
                      - dd/MMM/yyyy:HH:mm:ss Z
            - ':else if [path] =~ "error"':
                - :mutate:
                    replace:
                      type: "apache_error"
            - :else:
                - :mutate:
                    replace:
                      type: "random_logs"
        - :output:
            - :elasticsearch:
                hosts:
                  - localhost:9200
            - :stdout:
                codec: rubydebug
      # Filebeat input configuration
      beats:
        - :input:
            - :beats:
                port: 5044
        - :output:
            - :elasticsearch:
                hosts:
                  - localhost:9200
                manage_template: "false"
                index: "%{[@metadata][beat]}-%{+YYYY.MM.dd}"
                document_type: "%{[@metadata][type]}"
            - :stdout:
                codec: rubydebug
  roles:
    - logstash

# Package to be installed (explicit version can be specified here)
logstash_pkg: logstash

# Additional packages to be installed (e.g. Java)
logstash_additional_pkgs:
  - "{{
        'java'
          if ansible_os_family == 'RedHat'
          else
        'openjdk-8-jdk' }}"

# YUM repo URL
logstash_yum_repo_url: "{{ elastic_yum_repo_url | default('https://artifacts.elastic.co/packages/5.x/yum') }}"

# YUM repo GPG key
logstash_yum_repo_key: "{{ elastic_yum_repo_key | default('https://artifacts.elastic.co/GPG-KEY-elasticsearch') }}"

# Extra EPEL YUM repo params
logstash_yum_repo_params: "{{ elastic_yum_repo_params | default({}) }}"

# GPG key for the APT repo
logstash_apt_repo_key: "{{ elastic_apt_repo_key | default('https://artifacts.elastic.co/GPG-KEY-elasticsearch') }}"

# APT repo string
logstash_apt_repo_string: "{{ elastic_apt_repo_string | default('deb https://artifacts.elastic.co/packages/5.x/apt stable main') }}"

# Name of the service
logstash_service: logstash


# Path to the main config file
logstash_config_file: /etc/logstash/logstash.yml

# Values of the default http part of the Logstash config
logstash_config_http_host: 127.0.0.1

# Default http part of the Logstash config
logstash_config_http__default:
    host: "{{ logstash_config_http_host }}"

# Custom http part of the Logstash config
logstash_config_http__custom: {}

# Final http part of the Logstash config
logstash_config_http: "{{
  logstash_config_http__default.update(logstash_config_http__custom) }}{{
  logstash_config_http__default }}"

# Values of the default host part of the Logstash config
logstash_config_host_data: /var/lib/logstash
logstash_config_host_config: /etc/logstash/conf.d
logstash_config_host_logs: /var/log/logstash

# Default host part of the Logstash config
logstash_config_host__default:
    data: "{{ logstash_config_host_data }}"
    config: "{{ logstash_config_host_config }}"
    logs: "{{ logstash_config_host_logs }}"

# Custom host part of the Logstash config
logstash_config_host__custom: {}

# Final host part of the Logstash config
logstash_config_host: "{{
  logstash_config_host__default.update(logstash_config_host__custom) }}{{
  logstash_config_host__default }}"

# Default Logstash config
logstash_config__default:
  http: "{{ logstash_config_http }}"
  path: "{{ logstash_config_host }}"

# Custom Logstash config
logstash_config__custom: {}

# Final Logstash config
logstash_config: "{{
  logstash_config__default.update(logstash_config__custom) }}{{
  logstash_config__default }}"


# Path to the Logstash config directory
logstash_pipeline_path: /etc/logstash/conf.d

# Default configuration
logstash_pipeline__default: {}

# Custom configuration
logstash_pipeline__custom: {}

# Final configuration
logstash_pipeline: "{{
  logstash_pipeline__default.update(
  logstash_pipeline__custom) }}{{
  logstash_pipeline__default }}"


# Path to the sysconfig file
logstash_sysconfig_file: /etc/default/logstash

# Sysconfig options
logstash_sysconfig: {}


# Location of the jvm.options file
logstash_jvm_options_file: /etc/logstash/jvm.options

# Values of the default JVM system properties
logstash_jvm_options_d_file_encoding: UTF-8
logstash_jvm_options_d_java_awt_headless: "true"

# Default JVM system properties
logstash_jvm_options_d__default:
  - file.encoding={{ logstash_jvm_options_d_file_encoding }}
  - java.awt.headless={{ logstash_jvm_options_d_java_awt_headless }}

# Custom JVM system properties
logstash_jvm_options_d__custom: []

# Final JVM system properties
logstash_jvm_options_d: "{{
  logstash_jvm_options_d__default +
  logstash_jvm_options_d__custom }}"

# Values of the default JVM non-standard options
logstash_jvm_options_x_ms: 256m
logstash_jvm_options_x_mx: 1g
logstash_jvm_options_x_X_CMSInitiatingOccupancyFraction: 75
logstash_jvm_options_x_X_DisableExplicitGC: yes
logstash_jvm_options_x_X_HeapDumpOnOutOfMemoryError: yes
logstash_jvm_options_x_X_UseCMSInitiatingOccupancyOnly: yes
logstash_jvm_options_x_X_UseConcMarkSweepGC: yes
logstash_jvm_options_x_X_UseParNewGC: yes

# Default JVM non-standard options
logstash_jvm_options_x__default:
  - ms{{ logstash_jvm_options_x_ms }}
  - mx{{ logstash_jvm_options_x_mx }}
  - X:CMSInitiatingOccupancyFraction={{ logstash_jvm_options_x_X_CMSInitiatingOccupancyFraction }}
  - X:{{ '+' if logstash_jvm_options_x_X_DisableExplicitGC else '-' }}DisableExplicitGC
  - X:{{ '+' if logstash_jvm_options_x_X_HeapDumpOnOutOfMemoryError else '-' }}HeapDumpOnOutOfMemoryError
  - X:{{ '+' if logstash_jvm_options_x_X_UseCMSInitiatingOccupancyOnly else '-' }}UseCMSInitiatingOccupancyOnly
  - X:{{ '+' if logstash_jvm_options_x_X_UseConcMarkSweepGC else '-' }}UseConcMarkSweepGC
  - X:{{ '+' if logstash_jvm_options_x_X_UseParNewGC else '-' }}UseParNewGC

# Custom JVM non-standard options
logstash_jvm_options_x__custom: []

# Final JVM non-standard options
logstash_jvm_options_x: "{{
  logstash_jvm_options_x__default +
  logstash_jvm_options_x__custom }}"

# Default JVM options
logstash_jvm_options__default:
  -D: "{{ logstash_jvm_options_d }}"
  -X: "{{ logstash_jvm_options_x }}"

# Custom JVM options
logstash_jvm_options__custom: {}

# Final JVM options
logstash_jvm_options: "{{
  logstash_jvm_options__default.update(logstash_jvm_options__custom) }}{{
  logstash_jvm_options__default }}"


# Location of the jvm.options file
logstash_startup_options_file: /etc/logstash/startup.options

# Values of the default startup config options
logstash_startup_options_javacmd: /usr/bin/java
logstash_startup_options_ls_home: /usr/share/logstash
logstash_startup_options_ls_settings_dir: /etc/logstash
logstash_startup_options_ls_opts: --path.settings {{ logstash_startup_options_ls_settings_dir }}
logstash_startup_options_ls_java_opts: ""
logstash_startup_options_ls_pidfile: /var/run/logstash.pid
logstash_startup_options_ls_user: logstash
logstash_startup_options_ls_group: logstash
logstash_startup_options_ls_gc_log_file: /var/log/logstash/gc.log
logstash_startup_options_ls_open_files: 16384
logstash_startup_options_ls_nice: 19
logstash_startup_options_service_name: logstash
logstash_startup_options_service_description: logstash

# Default startup options
logstash_startup_options__default:
  javacmd: "{{ logstash_startup_options_javacmd }}"
  ls_home: "{{ logstash_startup_options_ls_home }}"
  ls_settings_dir: "{{ logstash_startup_options_ls_settings_dir }}"
  ls_opts: "{{ logstash_startup_options_ls_opts }}"
  ls_java_opts: "{{ logstash_startup_options_ls_java_opts }}"
  ls_pidfile: "{{ logstash_startup_options_ls_pidfile }}"
  ls_user: "{{ logstash_startup_options_ls_user }}"
  ls_group: "{{ logstash_startup_options_ls_group }}"
  ls_gc_log_file: "{{ logstash_startup_options_ls_gc_log_file }}"
  ls_open_files: "{{ logstash_startup_options_ls_open_files }}"
  ls_nice: "{{ logstash_startup_options_ls_nice }}"
  service_name: "{{ logstash_startup_options_service_name }}"
  service_description: "{{ logstash_startup_options_service_description }}"

# Custom startup options
logstash_startup_options__custom: {}

# Final startup options
logstash_startup_options: "{{
  logstash_startup_options__default.update(logstash_startup_options__custom) }}{{
  logstash_startup_options__default }}"