---
services:
  opensearch-node:
    image: opensearchproject/opensearch:3
    container_name: opensearch
    network_mode: host
    restart: always
    environment:
      - cluster.name=opensearch-relforge
      - node.name=relforge1008.eqiad.wmnet
      - discovery.seed_hosts=relforge1008.eqiad.wmnet,relforge1009.eqiad.wmnet,relforge1010.eqiad.wmnet
      - cluster.initial_cluster_manager_nodes=relforge1008.eqiad.wmnet,relforge1009.eqiad.wmnet,relforge1010.eqiad.wmnet
      - bootstrap.memory_lock=true  # along with the memlock settings below, disables swapping
      - OPENSEARCH_JAVA_OPTS=-Xms30G -Xmx30G 
      - DISABLE_SECURITY_PLUGIN=true
      - network.host=0.0.0.0
    ulimits:
      memlock:
        soft: -1
        hard: -1
      nofile:
        soft: 65536  # maximum number of open files for the OpenSearch user, set to at least 65536 on modern systems
        hard: 65536
    volumes:
      - opensearch-data:/usr/share/opensearch/data

volumes:
  opensearch-data: