services:
  prometheus:
    deploy:
      resources:
        limits:
          cpus: "0.5"
          memory: 256m
    image: ${PROMETHEUS_IMAGE:-quay.io/prometheus/prometheus:latest}
    hostname: prometheus
    ports:
      - "9990:9090"
    expose:
      - "9990"
    volumes:
      - prometheus_cfg:/etc/prometheus:ro
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
    restart: unless-stopped
    healthcheck:
      test: wget --no-verbose --tries=1 --spider http://localhost:9090/-/healthy || exit 1
      interval: 10s
      retries: 3
      start_period: 30s
      timeout: 5s

volumes:
  prometheus_cfg:
    external: true
  prometheus_data:
    driver: local