ansible-roles/elasticsearch/tasks/configuration.yml

---

- name: Configure cluster name
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "cluster.name: {{ elasticsearch_cluster_name }}"
    regexp: "^cluster.name:"
    insertafter: "^# *cluster.name:"
  when: elasticsearch_cluster_name | default("", True) | length > 0
  tags:
    - config

- name: Configure node name
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "node.name: {{ elasticsearch_node_name }}"
    regexp: "^node.name:"
    insertafter: "^# *node.name:"
  tags:
    - config

- name: Configure network host
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "network.host: {{ elasticsearch_network_host  }}"
    regexp: "^network.host:"
    insertafter: "^# *network.host:"
  when: elasticsearch_network_host | default("", True) | length > 0
  tags:
    - config

- name: Configure network publish_host
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "network.publish_host: {{ elasticsearch_network_publish_host  }}"
    regexp: "^network.publish_host:"
    insertafter: "^network.host:"
  when: elasticsearch_network_publish_host | default("", True) | length > 0
  tags:
    - config

- name: Configure http publish_host
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "http.publish_host: {{ elasticsearch_http_publish_host  }}"
    regexp: "^http.publish_host:"
    insertafter: "^http.port:"
  when: elasticsearch_http_publish_host | default("", True) | length > 0
  tags:
    - config

- name: Configure discovery seed hosts
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "discovery.seed_hosts: {{ elasticsearch_discovery_seed_hosts | to_yaml(default_flow_style=True) }}"
    regexp: "^discovery.seed_hosts:"
  when: elasticsearch_discovery_seed_hosts | default([], True) | length > 0
  tags:
    - config

- name: Configure empty discovery seed hosts
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    regexp: "^discovery.seed_hosts:"
    state: absent
  when: elasticsearch_discovery_seed_hosts | default([], True) | length <= 0
  tags:
    - config

- name: Configure initial master nodes
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "cluster.initial_master_nodes: {{ elasticsearch_cluster_initial_master_nodes | to_yaml(default_flow_style=True) }}"
    regexp: "^cluster.initial_master_nodes:"
  when: elasticsearch_cluster_initial_master_nodes | default([], True) | length > 0
  tags:
    - config

- name: Configure empty initial master nodes
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    regexp: "^cluster.initial_master_nodes:"
    state: absent
  when: elasticsearch_cluster_initial_master_nodes | default([], True) | length <= 0
  tags:
    - config

- name: Configure RESTART_ON_UPGRADE
  ansible.builtin.lineinfile:
    dest: /etc/default/elasticsearch
    line: "RESTART_ON_UPGRADE={{ elasticsearch_restart_on_upgrade | bool | ternary('true','false') }}"
    regexp: "^RESTART_ON_UPGRADE="
    insertafter: "^# *RESTART_ON_UPGRADE="
  tags:
    - config

- name: JVM Heap size (min) is set
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/jvm.options.d/evolinux.options
    regexp: "^-Xms"
    line: "-Xms{{ elasticsearch_jvm_xms }}"
    create: yes
    owner: root
    group: elasticsearch
    mode: "0640"
  tags:
    - config

- name: JVM Heap size (max) is set
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/jvm.options.d/evolinux.options
    regexp: "^-Xmx"
    line: "-Xmx{{ elasticsearch_jvm_xmx }}"
    create: yes
    owner: root
    group: elasticsearch
    mode: "0640"
  tags:
    - config

- name: Disable garbage collector logs (JDK >= 9)
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/jvm.options
    regexp: "Xlog:gc"
    line: "#9-:-Xlog:gc*,gc+age=trace,safepoint:file=/opt/my-app/gc.log:utctime,pid,tags:filecount=32,filesize=64m"
    owner: root
    group: elasticsearch
    mode: "0640"
  tags:
    - config

- name: Configure cluster members
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "discovery.zen.ping.unicast.hosts: {{ elasticsearch_cluster_members }}"
    regexp: "^discovery.zen.ping.unicast.hosts:"
    insertafter: "^#discovery.zen.ping.unicast.hosts"
  when: elasticsearch_cluster_members | default("", True) | length > 0
  tags:
    - config

- name: Configure minimum master nodes
  ansible.builtin.lineinfile:
    dest: /etc/elasticsearch/elasticsearch.yml
    line: "discovery.zen.minimum_master_nodes: {{ elasticsearch_minimum_master_nodes }}"
    regexp: "^discovery.zen.minimum_master_nodes:"
    insertafter: "^#discovery.zen.minimum_master_nodes"
  when: elasticsearch_minimum_master_nodes | default("", True) | length > 0
  tags:
    - config