version: '3.8'

services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:7.17.13
    container_name: gk-observability-elasticsearch
    environment:
      - discovery.type=single-node
      - ES_JAVA_OPTS=-Xms512m -Xmx512m
    ports:
      - "9200:9200"
    networks:
      - app-network

  apm-server:
    image: docker.elastic.co/apm/apm-server:7.17.13
    container_name: gk-observability-apm-server
    depends_on:
      - elasticsearch
    ports:
      - "8200:8200"
    environment:
      - output.elasticsearch.hosts=["http://elasticsearch:9200"]
      - apm-server.host=0.0.0.0:8200
      - apm-server.secret_token=sundayenglish
    networks:
      - app-network

  kibana:
    image: docker.elastic.co/kibana/kibana:7.17.13
    container_name: gk-observability-kibana
    ports:
      - "5601:5601"
    environment:
      - ELASTICSEARCH_HOSTS=http://elasticsearch:9200
    depends_on:
      - elasticsearch
    networks:
      - app-network

networks:
  app-network:
    name: gk.internal
    external: true