services:
  logstream:
    build: .
    container_name: logstream
    restart: unless-stopped
    depends_on:
      - victorialogs
      - docker-proxy
    ports:
      - "${SYSLOG_PORT:-514}:5514/udp"
      - "${SYSLOG_PORT:-514}:5514/tcp"
      - "${HTTP_PORT:-8080}:8080"
    environment:
      VLOGS_URL: http://victorialogs:9428
      SYSLOG_PUBLIC_PORT: ${SYSLOG_PORT:-514}     # le port d'ecoute syslog par defaut (attention aux ports <1024)
      TZ: ${TZ:-Europe/Paris}
      AUTH_USER: ${AUTH_USER:-}   # vide = pas d'authentification, on delegue ca au reverse proxy traefik
      AUTH_PASS: ${AUTH_PASS:-}
      RDNS: ${RDNS:-on}               # resol dns
      DNS_SERVER: ${DNS_SERVER:-}     # si resolv directe
      ALLOW_PURGE: ${ALLOW_PURGE:-true}
      EXPORT_MAX: ${EXPORT_MAX:-100000}
      DOCKER_LOGS: ${DOCKER_LOGS:-on}             # collecte des logs des conteneurs Docker
      DOCKER_HOST: tcp://docker-proxy:2375        # lecture seul de l'API Docker
      DOCKER_BACKFILL: ${DOCKER_BACKFILL:-1h}
      HOST_LOGS_BACKFILL: ${HOST_LOGS_BACKFILL:-1h}   # historique lu a l'activation des logs systeme de l'hote
    group_add:
      - "${HOST_LOGS_GID:-4}"        # groupe autorise a lire les logs de l'hote (4 = adm sur Debian/Ubuntu)
    volumes:
      - logstream-data:/data         # tags.json, docker.json (les choix des conteneurs)
      # logs systeme de l'hote, en lecture seule (source a activer dans Reglages > Sources)
      - /var/log:/host/var/log:ro                     # journal systemd persistant et fichiers texte
      - /run/log/journal:/host/run/log/journal:ro     # journal systemd volatile
    labels:
      logstream.exclude: "true"      # pas de collect des logs logstream

  victorialogs:
    image: victoriametrics/victoria-logs:v1.52.0
    container_name: logstream-victorialogs
    restart: unless-stopped
    command:
      - -storageDataPath=/vlogs
      - -retentionPeriod=${RETENTION:-30d}
      - -httpListenAddr=:9428
      - -delete.enable                # obliger pour autoriser la purge de la base via l'interface
    volumes:
      - vlogs-data:/vlogs
    ports:
      # VictoriaLogs debug UI (http://localhost:9428/select/vmui), localhost only
      - "127.0.0.1:9428:9428"

  docker-proxy:
    # Docker proxy pour eviter de solliciter directement l'API docker
    image: tecnativa/docker-socket-proxy:v0.5.0
    container_name: logstream-docker-proxy
    restart: unless-stopped
    environment:
      CONTAINERS: 1
      EVENTS: 1
      INFO: 1
      POST: 0
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    labels:
      logstream.exclude: "true"      # pour exclure les logs propres de logstream

volumes:
  logstream-data:
  vlogs-data: