docker-compose-elk.yaml

version: '3.7'

services:
  # Elasticsearch - db
  elasticsearch:
    image: elasticsearch:7.16.1
    container_name: elastic
    mem_limit: 2000M
    mem_reservation: 2000M
    environment:
      discovery.type: single-node
      ES_JAVA_OPTS: "-Xms512M -Xmx1g"
    ports:
      - "9200:9200"
      - "9300:9300"
    healthcheck:
      test: ["CMD-SHELL", "curl --silent --fail localhost:9200/_cluster/health || exit 1"]
      interval: 10s
      timeout: 10s
      retries: 3
    networks:
      - elastic
    volumes:
      - logs-elasticsearch:/usr/share/elasticsearch/data

  # Kibana - dashboard
  kibana:
    image: kibana:7.16.1
    container_name: kibana
    mem_limit: 1024M
    mem_reservation: 1024M
    ports:
      - "5601:5601"
    depends_on:
      elasticsearch:
        condition: service_healthy
    networks:
      - elastic
    environment:
      ELASTICSEARCH_HOSTS: http://elasticsearch:9200
    healthcheck:
      test: ["CMD-SHELL", "curl --silent --fail localhost:5601/api/task_manager/_health || exit 1"]
      interval: 10s
      timeout: 10s
      retries: 5

  # Filebeat - log collector sidecar
  filebeat:
    image: docker.elastic.co/beats/filebeat-oss:7.16.1
    container_name: filebeat
    volumes:
      - logs-chg-service:/logs  # -> reads logs from these files
      - ./docker/filebeat/filebeat.yml:/usr/share/filebeat/filebeat.yml:ro
    networks:
      - elastic
    depends_on:
      - elasticsearch
      - kibana
    command: ["--strict.perms=false", "-c", "/usr/share/filebeat/filebeat.yml"]  # security disabled for test env

  # User service
  change_machine_service:
    container_name: changemachine
    depends_on:
      - filebeat
    build:
      context: .
      dockerfile: Dockerfile
    ports:
      - "3003:3003"
    networks:
      - elastic
    environment:
      - SRV_HOST=0.0.0.0
      - SRV_PORT=3003
      - SRV_PREFIX=
      - SRV_LOG_FILE=/logs/fastapi.ndjson  # <- writes logs to this file
    healthcheck:
      test:
        - CMD-SHELL
        - python -c 'import httpx; r = httpx.get("http://localhost:3003/health"); r.raise_for_status()'
      interval: 10s
      timeout: 5s
    volumes:
        - logs-chg-service:/logs

networks:
  elastic:
    name: changemachinenet
    driver: bridge

volumes:
  logs-chg-service:
  logs-elasticsearch: