docker-compose.yml

version: '3'
name: 'lambda-ethereum-consensus-grafana'

services:
  prometheus:
    image: prom/prometheus
    container_name: prometheus
    hostname: prometheus
    volumes:
      # prometheus configuration
      - ./prometheus:/etc/prometheus
      # prometheus data
      - prometheus-data:/prometheus
    command: --web.enable-lifecycle  --config.file=/etc/prometheus/prometheus.yml
    networks:
      grafana-prometheus:
        aliases:
          - prometheus
    extra_hosts:
      - "host.docker.internal:host-gateway"

  grafana:
    image: grafana/grafana
    container_name: grafana
    ports:
      - "3000:3000"
    volumes:
      # grafana configuration
      - ./grafana/provisioning:/etc/grafana/provisioning
      # grafana data
      - grafana-data:/var/lib/grafana
    environment:
      # WARNING: use this for same-machine access ONLY
      GF_AUTH_ANONYMOUS_ENABLED: "true"
      GF_AUTH_DISABLE_LOGIN_FORM: "true"
      GF_AUTH_ANONYMOUS_ORG_ROLE: "Admin"
    networks:
      grafana-prometheus:
        aliases:
          - grafana
      grafana-loki:
        aliases:
          - grafana

  # Since the Loki containers are running as user 10001 and the mounted data volume is owned by root,
  # Loki would not have permissions to create the directories.
  # Therefore the init container changes permissions of the mounted directory.
  loki-init:
    image: &lokiImage grafana/loki:2.9.2
    user: root
    entrypoint:
      - "chown"
      - "10001:10001"
      - "/tmp/loki"
    volumes:
      - loki-data:/tmp/loki

  loki:
    image: *lokiImage
    container_name: loki
    volumes:
      # loki configuration
      - ./loki:/etc/loki
      # loki data
      - loki-data:/tmp/loki
    command: --config.file=/etc/loki/loki.yml
    networks:
      grafana-loki:
        aliases:
          - loki
      loki-promtail:
        aliases:
          - loki

  promtail:
    image: grafana/promtail
    container_name: promtail
    volumes:
      # promtail configuration
      - ./promtail:/etc/promtail
      # logs to scrape
      - ../logs:/var/log/consensus
      # promtail data
      - promtail-data:/tmp/promtail
    command: --config.file=/etc/promtail/promtail.yml
    networks:
      loki-promtail:
        aliases:
          - promtail

networks:
  grafana-prometheus:
    driver: bridge
  grafana-loki:
    driver: bridge
  loki-promtail:
    driver: bridge

volumes:
  prometheus-data:
  grafana-data:
  loki-data:
  promtail-data: