ansible/roles/elasticsearch/tasks/deploy.yml

#
# Licensed to the Apache Software Foundation (ASF) under one or more
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# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You 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
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# distributed under the License is distributed on an "AS IS" BASIS,
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#
---
# This role will run a ElasticSearch server on the db group

- name: set the vm.max_map_count to 262144
  sysctl:
    name: vm.max_map_count
    value: '262144'
  become: true

- name: set elasticsearch container name, volume and port
  set_fact:
    elasticsearch_name: "{{ name_prefix ~ host_group.index(inventory_hostname) }}"
    volume_name: "{{ db.elasticsearch.base_volume ~ host_group.index(inventory_hostname) }}"
    http_port: "{{ (db.elasticsearch.port|int) + host_group.index(inventory_hostname) }}"
    transport_port: "{{ (db.elasticsearch.base_transport_port|int) + host_group.index(inventory_hostname) }}"

- name: ensure elasticserach config directory is created with permissions
  file:
    path: "{{ db.elasticsearch.confdir }}/{{ elasticsearch_name }}"
    state: directory
    mode: 0755
  become: "{{ db.elasticsearch.dir.become }}"

# create volume directory if it's a directory path(not a named volume)
- name: ensure elasticserach volume directory is created with permissions
  file:
    path: "{{ volume_name }}"
    state: directory
    mode: 0700
    owner: "{{ db.elasticsearch.uid }}"
  become: true
  when: volume_name is search("/")

- name: copy elasticsearch config file
  template:
    src: "elasticsearch.yml.j2"
    dest: "{{ db.elasticsearch.confdir }}/{{ elasticsearch_name }}/elasticsearch.yml"
    mode: 0644
  become: "{{ db.elasticsearch.dir.become }}"

- name: copy elasticsearch log config file
  template:
    src: "log4j2.properties.j2"
    dest: "{{ db.elasticsearch.confdir }}/{{ elasticsearch_name }}/log4j2.properties"
    mode: 0644
  become: "{{ db.elasticsearch.dir.become }}"

- name: "(re)start ElasticSearch from '{{ elasticsearch_image }} ' "
  vars:
    elasticsearch_image: "{{ elasticsearch.docker_image | default('docker.elastic.co/elasticsearch/elasticsearch:' ~ elasticsearch.version ) }}"
  docker_container:
    name: "{{ elasticsearch_name }}"
    image: "{{ elasticsearch_image }}"
    state: started
    recreate: true
    restart_policy: "{{ docker.restart.policy }}"
    ports:
      - "{{ http_port }}:9200"
      - "{{ transport_port }}:{{ transport_port }}"
    volumes:
      - "{{ db.elasticsearch.confdir }}/{{ elasticsearch_name }}/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml"
      - "{{ db.elasticsearch.confdir }}/{{ elasticsearch_name }}/log4j2.properties:/usr/share/elasticsearch/config/log4j2.properties"
      - "{{ volume_name }}:/usr/share/elasticsearch/data"
    pull: "{{ docker.pull_elasticsearch | default(true) }}"
    ulimits:
      - "nofile:262144:262144"
      - "memlock:-1:-1"
    env:
      TZ: "{{ docker.timezone }}"
      ES_JAVA_OPTS: "{{ db.elasticsearch.java_opts }}"

- name: wait until ElasticSearch in this host is up and running
  uri:
    url: "{{ db.elasticsearch.protocol }}://{{ ansible_host }}:{{ http_port }}"
  register: result
  until: result.status == 200
  retries: 12
  delay: 5