Unable to get Netalertx working on Synology SA6400 with Docker

[Gastonzz]

Hello everyone, I just wanted to say that this application is truly fantastic!

I installed it without any problems on my Synology DS1821+ and it worked perfectly under Docker.

However, I installed it on a Synology SA6400, also under Docker, and it's impossible to get it to work. I've searched extensively and haven't been able to find a solution, which is why I'm asking for your help, if you can. I've included the detailed script showing the application launch and the error message.

Thank you in advance for any help you can provide.

netalertx.html

[jokob-sk]

HI - please open a new issue with logs and especially your docker-compose to help you further. Looks like its a docker compose/permissions issue but need details so please open an issue and fill in all info.

[Gastonzz]

Thank you for your reply. I didn't quite understand the new ticket; I'm not familiar with your site and I also have a lot of trouble understanding English, so I'm using a translator.

I've attached the application file "docker-compose.yml". I'm not sure what other files I can provide to help you. Please let me know what else you need, and I'll take care of it. Sincerely,

---

services:
netalertx:
image: jokobsk/netalertx:latest # Nom de l'image Docker à utiliser
container_name: netalertx # Nom du conteneur Docker
healthcheck: # Vérifier état de santé du conteneur (attention au port)
test: curl -f http://127.0.0.1:15000/ || exit 1
mem_limit: 1g # Limite RAM de 1 Go pour le conteneur
security_opt:
- no-new-privileges:true # Option de sécurité contre l'élévation de privilèges
volumes:
- /volume1/docker/netalertx/config:/app/config:rw # Volume pour "config" (configuration)
- /volume1/docker/netalertx/db:/app/db:rw # Volume pour "db" (base de données)
- /volume1/docker/netalertx/log:/app/front/log:rw # Volume pour "log" (journaux)
environment:
TZ: Europe/Paris # Fuseau horaire, ici Paris
PORT: 15000 # Port à utiliser sur la machine locale (adapter le healthcheck en fonction)
HOST_USER_ID: 1030 # UserID à utiliser (n'utilisez pas "root")
HOST_USER_GID: 100 # UserID à utiliser (n'utilisez pas "root")
# ALWAYS_FRESH_INSTALL: true # Réinitialise l'application (effacer toutes les données - désactivé ici)
network_mode: host # Mode "host" obligatoire pour cette application
restart: on-failure:5 # Restart en cas de problème avec le conteneur ; 5 tentatives pour relancer

[jokob-sk]

Your volume mounts are incorrect - the new version should have a /data mounts not /volume1/docker/netalertx/config, /volume1/docker/netalertx/db - those are incorrect. See a full example here:

https://docs.netalertx.com/DOCKER_COMPOSE/?h=compose#baseline-docker-compose

[Gastonzz]

Thank you so much for your help. I looked at it carefully and had a lot of trouble adapting the script; I'm really not very good at this!

I've attached the script I modified, but unfortunately, I'm getting an error message, so Netalertx isn't working. I checked the log, but it's empty. Without wanting to take up too much of your time, could you please take a look at my modified script and tell me what I did wrong? Thank you.

Error message when launching Netalertx:

Error message.bmp
docker-compose.yaml.yml

[jokob-sk]

Try something like this

services:
  netalertx:
    container_name: netalertx
    image: ghcr.io/netalertx/netalertx:latest
    network_mode: ${NETALERTX_NETWORK_MODE:-host}

    read_only: true

    cap_drop:
      - ALL
    cap_add:
      - NET_ADMIN
      - NET_RAW
      - NET_BIND_SERVICE
      - CHOWN
      - SETUID
      - SETGID

    healthcheck:
      test: curl -f http://127.0.0.1:15000/ || exit 1

    volumes:
      # Local bind mount instead of Docker named volume
      - /volume1/docker/netalertx:/data:rw

      # Timezone consistency
      - type: bind
        source: /etc/localtime
        target: /etc/localtime
        read_only: true

    tmpfs:
      - "/tmp:uid=${NETALERTX_UID:-20211},gid=${NETALERTX_GID:-20211},mode=1700,rw,noexec,nosuid,nodev,async,noatime,nodiratime"

    environment:
      TZ: Europe/Paris
      LISTEN_ADDR: ${LISTEN_ADDR:-0.0.0.0}
      PORT: 15000
      GRAPHQL_PORT: ${GRAPHQL_PORT:-20212}

      HOST_USER_ID: 1030
      HOST_USER_GID: 100

      # ALWAYS_FRESH_INSTALL: true

    mem_limit: 1g
    mem_reservation: 512m
    cpu_shares: 512
    pids_limit: 512

    security_opt:
      - no-new-privileges:true

    logging:
      options:
        max-size: "10m"
        max-file: "3"

    restart: unless-stopped

[Gastonzz]

Thank you so much for your help, it works! I'm going to configure your application now.

You're a really kind and helpful person. Best regards.

Guy

[jokob-sk]

Glad to hear that - if you find NetAlertX useful, consider sharing the app on forums or socials, at your work, or share a quick review on Reddit or elsewhere to help support the project.

[Gastonzz]

Thank you, of course I'll do it with great pleasure!

See you soon

Guy