docker-compose.yaml

services:
  exporter:
    build:
        context: .
        dockerfile: Dockerfile

        args:

          # The source root of the exporter project. This variable will be placed in the .env file
          # at the project root when the project is built for the first time.
          # It is used to determine the location of the source files in the container, so source
          # map references in the logs will point to the correct location on the host, which makes
          # debugging a lot easier.
          SOURCE_ROOT: "${EXPORTER_SOURCE_ROOT:-./iss-exporter/src}"
          LISTEN_PORT: ${EXPORTER_LISTEN_PORT:-3000}
    restart: unless-stopped
    environment:
      LOG_LEVEL: "${EXPORTER_LOG_LEVEL:-info}"
      UPDATE_INTERVAL: "${EXPORTER_UPDATE_INTERVAL:-1000}"
      METRICS_PREFIX: "${EXPORTER_METRICS_PREFIX:-iss}"
      NODE_METRICS: "${EXPORTER_NODE_METRICS:-true}"
      NODE_METRICS_PREFIX: "${EXPORTER_NODE_METRICS:-node}"
      WEB_SERVER_METRICS: "${EXPORTER_WEB_SERVER_METRICS:-true}"
      WEB_SERVER_METRICS_PREFIX: "${EXPORTER_WEB_SERVER_METRICS_PREFIX:-express}"
      POSITION_UPDATE_FREQUENCY: "${EXPORTER_POSITION_UPDATE_FREQUENCY:-2000}"
      SUBSCRIPTION_ENDPOINT: "${EXPORTER_SUBSCRIPTION_ENDPOINT:-https://push.lightstreamer.com}"
      SUBSCRIPTION_ADAPTER: "${EXPORTER_SUBSCRIPTION_ADAPTER:-ISSLIVE}"
      POSITION_API_URL: "${EXPORTER_POSITION_API_URL:-http://api.open-notify.org/iss-now.json}"
      METRICS_ENDPOINT: "${EXPORTER_METRICS_ENDPOINT:-/metrics}"
      STATUS_ENDPOINT: "${EXPORTER_STATUS_ENDPOINT:-/status}"
      TIME_SIGNAL_NAME: "${EXPORTER_TIME_SIGNAL_NAME:-TIME_000001}"
    healthcheck:
      test:
        - "CMD"
        - "curl"
        - "-f"
        - "http://localhost:${EXPORTER_LISTEN_PORT:-3000}${EXPORTER_STATUS_ENDPOINT:-/status}"
      interval: 30s
      timeout: 10s
      retries: 3
    networks:
      - monitoring
    expose:
      - "${EXPORTER_LISTEN_PORT:-3000}"

  grafana:
    image: "grafana/grafana-oss:${GRAFANA_VERSION:-latest}"
    restart: unless-stopped
    environment:
      GF_SERVER_DOMAIN: "${SITE_DOMAIN:-localhost}"
      GF_SMTP_EHLO_IDENTITY: "${SITE_DOMAIN:-localhost}"

      # Ensure logs are written to stdout immediately
      GF_LOG_MODE: console
    healthcheck:
      test:
        - "CMD"
        - "wget"
        - "--quiet"
        - "http://localhost:3000/api/health"
        - "--output-document"
        - "-"
      interval: 10s
      timeout: 15s
      retries: 10
      start_period: 40s

    volumes:
      # This volume mounts the main Grafana configuration into the Grafana container.
      - source: ./grafana/grafana.ini
        target: /etc/grafana/grafana.ini
        type: bind
        consistency: cached
        read_only: true

      # This volume mounts the custom datasources configuration.
      # It configures the datasources to be provisioned.
      - source: ./grafana/datasources.yaml
        target: /etc/grafana/provisioning/datasources/main.yaml
        type: bind
        consistency: cached
        read_only: true

      # This volume mounts the custom dashboards configuration.
      # It configures the dashboards to be provisioned.
      - source: ./grafana/dashboards.yaml
        target: /etc/grafana/provisioning/dashboards/main.yaml
        type: bind
        consistency: cached
        read_only: true

      # This volume mounts the custom dashboards.
      # They will be provisioned automatically.
      - source: ./grafana/dashboards
        target: /etc/grafana/dashboards
        type: bind
        consistency: cached
        read_only: true

      # This volume mounts the custom markers (e.g. the ISS icon used on the map).
      - source: ./grafana/markers
        target: /usr/share/grafana/public/img/icons/marker
        type: bind
        consistency: cached
        read_only: true

      # This volume holds the Grafana database and other data generated at runtime.
      # You should not delete this volume if you want to keep adjustments and dashboards.
      - source: grafana_data
        target: /var/lib/grafana
        type: volume

    expose:
      - 3000
    networks:
      - default
      - monitoring

  prometheus:
    image: "prom/prometheus:${PROMETHEUS_VERSION:-latest}"
    restart: unless-stopped
    command:
      - "--config.file=/etc/prometheus/prometheus.yaml"
      - "--storage.tsdb.path=/prometheus"
      - "--storage.tsdb.retention.time=${PROMETHEUS_RETENTION_TIME:-14d}"
      - "--web.console.libraries=/etc/prometheus/console_libraries"
      - "--web.console.templates=/etc/prometheus/consoles"
      - "--web.user-assets=/user"
      - "--web.enable-admin-api"
      - "--web.page-title=Prometheus: ISS Metrics"
      - "--web.external-url=${URL_PREFIX_PROMETHEUS:-/prometheus}"
      - "--web.route-prefix=${URL_PREFIX_PROMETHEUS:-/prometheus}"
      - "--log.format=json"
      - "--log.level=warn"
    healthcheck:
      test:
        - "CMD"
        - "wget"
        - "--quiet"
        - "http://localhost:9090${URL_PREFIX_PROMETHEUS:-/prometheus}/-/healthy"
        - "--output-document"
        - "-"
      interval: 30s
      timeout: 10s
      retries: 3
    volumes:
      # This volume mounts the main Prometheus configuration.
      - source: ./prometheus/prometheus.yaml
        target: /etc/prometheus/prometheus.yaml
        type: bind
        consistency: cached
        read_only: true

      # This volume mounts the individual scrape target configurations.
      - source: ./prometheus/targets
        target: /etc/prometheus/targets
        type: bind
        consistency: cached
        read_only: true

      # This volume mounts public assets into the Prometheus container.
      - source: ./public
        target: /user
        type: bind
        consistency: cached
        read_only: true

      # This volume holds the Prometheus database and other data generated at runtime.
      # You should not delete this volume if you want to keep your metrics history.
      - source: prometheus_data
        read_only: false
        target: /prometheus
        type: volume
    networks:
      - monitoring
    expose:
      - 9090

  caddy:
    image: "caddy:${CADDY_VERSION:-latest}"
    restart: unless-stopped
    environment:
      SITE_DOMAIN: "${SITE_DOMAIN:-localhost}"
      EMAIL: "admin@${SITE_DOMAIN:-localhost}"
      TRUSTED_PROXIES: "${TRUSTED_PROXIES:-private_ranges}"
      HOMEPAGE: "${HOMEPAGE:-${URL_PREFIX_GRAFANA:-/grafana}/}"

      URL_PREFIX_ASSETS: "${URL_PREFIX_ASSETS:-/assets}"
      URL_PREFIX_GRAFANA: "${URL_PREFIX_GRAFANA:-/grafana}"
      UPSTREAM_GRAFANA: "grafana:3000"

      EXPOSE_PROMETHEUS: "${EXPOSE_PROMETHEUS:-true}"
      URL_PREFIX_PROMETHEUS: "${URL_PREFIX_PROMETHEUS:-/prometheus}"
      UPSTREAM_PROMETHEUS: "prometheus:9090"
    healthcheck:
      test: [ "CMD", "wget", "--quiet", "http://localhost:2020/health", "--output-document", "-" ]
      interval: 30s
      timeout: 10s
      retries: 3
    volumes:
      - ./caddy/Caddyfile:/etc/caddy/Caddyfile
      - ./caddy/error-pages:/error-pages:ro
      - ./public:/srv:ro
      - caddy_data:/data
      - caddy_config:/config
    networks:
      - default
      - monitoring
    ports:
      - published: "${HTTP_PORT:-3000}"
        target: 80
        protocol: tcp
        mode: host
      - published: "${HTTPS_PORT:-3010}"
        target: 443
        protocol: tcp
        mode: host
      - published: "${HTTPS_PORT:-3010}"
        target: 443
        protocol: udp
        mode: host
    expose:
      - 2019

networks:
  default:
  monitoring:
    driver: bridge

volumes:
  grafana_data:
  prometheus_data:
  caddy_data:
  caddy_config: