[BUG] vscode-server does not start if IPv6 is not available

Commencez par reproduire l’échec avec la configuration du service Docker fournie sur un hôte où IPv6 est désactivé, puis suivez le chemin de démarrage du conteneur code-server qui tente de se lier à :::8443. Le travail est terminé lorsque la dernière image code-server démarre correctement sans IPv6 tout en conservant son comportement d’accès attendu ; vérifiez-le avec les journaux du conteneur et les mêmes étapes de reproduction.

Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

The container fails to start on a host where IPv6 has been disabled.

Expected Behavior

The container should start.

Steps To Reproduce

1. Disable IPv6 on the Docker host
2. Start the container with the latest code-server image
3. The container fails to start due to being unable to bind to ":::8443"

Environment

- OS: Debian 11
- How docker service was installed: Official Debian package

CPU architecture

x86-64

Docker creation

services:
  code-server:
    image: linuxserver/code-server:4.127.0
    container_name: code-server
    hostname: code-server
    restart: unless-stopped
    volumes:
      - code-server:/config
      - code-server-data:/data
    environment:
      TZ: Europe/Berlin
      HASHED_PASSWORD: '<redacted>'
      DEFAULT_WORKSPACE: /data
    labels:
      traefik.enable: true
      traefik.http.routers.code-server.rule: "Host(`code-server.example.com`)"

Container logs

[2026-07-04T15:39:49.962Z] info  code-server 4.127.0 1e6ed874e3138141a5636f6e0dbe8570aa6cd001
[2026-07-04T15:39:49.963Z] info  Using user-data-dir /config/data
[2026-07-04T15:39:49.977Z] error listen EAFNOSUPPORT: address family not supported :::8443