compose.yaml

version: '3'
services:
  postgres:
    image: postgres:14.2
    container_name: postgres
    deploy:
      resources:
        limits:
          cpus: '0.1'
    ports:
      - "5432:5432"
    environment:
      - POSTGRES_PASSWORD=petclinic
      - POSTGRES_USER=petclinic
    volumes:
      - db_data:/var/lib/postgresql/data
    networks:
      - petnet

  petclinic:
    depends_on:
      - postgres
      - tempo
    image: ghcr.io/dmt/petclinic-grafana:latest
    # run as root to be able to write log files into the mount. meh
    user: root
    container_name: petclinic
    working_dir: /app
    restart: unless-stopped
    environment:
      - SPRING_PROFILES_ACTIVE=postgres,o11y,local
      - POSTGRES_URL=jdbc:postgresql://postgres/petclinic
      - JAVA_TOOL_OPTIONS="-Xmx512M"
    ports:
      - "8080:8080"
    networks:
      petnet:
    volumes:
      - app_logs:/app/logs
      - ./compose/spring:/app/config

  prometheus:
    image: prom/prometheus
    container_name: prometheus
    command: [
      "--config.file=/etc/prometheus/prometheus.yml",
      "--enable-feature=exemplar-storage",
      "--web.enable-remote-write-receiver",
      "--enable-feature=native-histograms"
    ]
    ports:
      - "9090:9090"
    restart: unless-stopped
    volumes:
      - ./compose/config/prometheus.yml:/etc/prometheus/prometheus.yml
      - prom_data:/prometheus
    networks:
      - petnet
  grafana:
    image: grafana/grafana:latest-ubuntu
    container_name: grafana
    ports:
      - "3000:3000"
    restart: unless-stopped
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=grafana
      - GF_AUTH_ANONYMOUS_ENABLED=true
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
      - GF_FEATURE_TOGGLES_ENABLE=traceToMetrics,featureToggleAdminPage
    volumes:
      # Pre-load the data sources
      - ./compose/config/grafana-datasources.yml:/etc/grafana/provisioning/datasources/datasources.yaml:rw
      # Pre-load the Hello Observability dashboard
      - ./compose/grafana/dashboards:/etc/grafana/provisioning/dashboards
      # internal storage for among other things annotations
      - grafana_data:/var/lib/grafana
    networks:
      - petnet
  tempo:
    image: grafana/tempo:latest
    container_name: tempo
    command: [ "-config.file=/etc/tempo.yaml" ]
    # tempo seems to take 30s to shut down. Who's got that much time?
    stop_grace_period: 2s
    # to be able to write to the data mount
    user: root
    restart: unless-stopped
    volumes:
      - ./compose/config/tempo-local.yaml:/etc/tempo.yaml
      - tempo_data:/tmp/tempo
    ports:
      - "9411:9411"   # zipkin
      - "3200:3200"   # http
    networks:
      - petnet
  promtail:
    image: grafana/promtail:latest
    container_name: promtail
    command: [ "-config.file=/etc/promtail/config.yaml" ]
    depends_on:
      - petclinic
    volumes:
      - ./compose/config/promtail.yaml:/etc/promtail/config.yaml
      # mount logs from the app's container
      - app_logs:/mnt/container/logs:ro
      - tail_data:/tmp
    networks:
      - petnet
  loki:
    image: grafana/loki:latest
    container_name: loki
    ports:
      - "3100:3100"
    command: [
      "-config.file=/etc/loki/local-config.yaml",
      "-ingester.max-global-streams-per-user=0",
      "-distributor.ingestion-rate-limit-mb=100",
      "-reporting.enabled=false"
    ]
    networks:
      - petnet

  k6:
    image: grafana/k6:master-with-browser
    command: [
      "run",
      "-o",
      "experimental-prometheus-rw",
      "script.js"
    ]
    container_name: k6-tests
    restart: "no"
    volumes:
      - .:/app
    working_dir: /app
    environment:
      - K6_PROMETHEUS_RW_SERVER_URL=http://prometheus:9090/api/v1/write
      - K6_PROMETHEUS_RW_TREND_AS_NATIVE_HISTOGRAM=true
    depends_on:
      - petclinic
    networks:
      - petnet
    profiles:
      - k6-tests

volumes:
  db_data:
  prom_data:
  tempo_data:
  tail_data:
  app_logs:
  grafana_data:

networks:
  petnet: