grafana:
    image: grafana/grafana:6.3.6
    hostname: grafana
    restart: always
    volumes:
      - grafana_etc:/etc/grafana
      - grafana_dashboards:/usr/share/grafana/public/dashboards
      - grafana_db:/var/lib/grafana
      - grafana_plugins:/var/lib/grafana/plugins
    # comment "environment" if node doesn't have access to internet
    logging:
      driver: $COMPOSE_LOG_DRIVER
      options:
        max-size: $COMPOSE_LOG_MAX_SIZE
        max-file: $COMPOSE_LOG_MAX_FILE
    environment:
      http_proxy: http://proxy:3128
      https_proxy: http://proxy:3128
      GF_INSTALL_PLUGINS: grafana-simple-json-datasource,
                          vertamedia-clickhouse-datasource