Failed recreating container: Create container error: Error response from daemon: conflicting options: hostname and the network mode

[UHAXM1]

Hi all,

I am new to Docker and Portainer and I am having an issue with my Gluetun stack (Gluetun, NATMAP, Jackett, qBittorrent), I can get it setup and running but if I try to use the Recreate button inside Portainer to rebuild the container I get the following error message.

"Failed recreating container: Create container error: Error response from daemon: conflicting options: hostname and the network mode"

I am lost as to why I get this error as everything in the stack works correctly, the vpn connection and network pass-through all work, the only issue is recreating the container, note that I am creating the stack using Docker Compose, if I try to do it from inside Portainer it throws the above error message but the stack is still created correctly. I have tried removing the hostname from the compose file, and setting one specifically (vpn), I get the same result.

Anyone else had this issue, any advise?

Here is my compose file.

services:
  gluetun:
    image: qmcgaw/gluetun
    container_name: gluetun
    # line above must be uncommented to allow external containers to connect.
    # See https://github.com/qdm12/gluetun-wiki/blob/main/setup/connect-a-container-to-gluetun.md#external-container-to-gluetun
    cap_add:
      - NET_ADMIN
    devices:
      - /dev/net/tun:/dev/net/tun
    ports:
      - 9117:9117 # Jackett
      - 8080:8080 # qBittorrent
      - 8888:8888/tcp # HTTP proxy
      - 8388:8388/tcp # Shadowsocks
      - 8388:8388/udp # Shadowsocks
    volumes:
      - /home/uhax/Docker/Gluetun:/gluetun
    environment:
      # See https://github.com/qdm12/gluetun-wiki/tree/main/setup#setup
      - VPN_SERVICE_PROVIDER=protonvpn
      # - VPN_TYPE=wireguard
      # OpenVPN:
      - OPENVPN_USER=
      - OPENVPN_PASSWORD=
      - SERVER_COUNTRIES=New Zealand
      - PORT_FORWARD_ONLY=on
      # Wireguard:
      # - WIREGUARD_PRIVATE_KEY=
      # - WIREGUARD_ADDRESSES=
      # Timezone for accurate log times
      - TZ=Pacific/Auckland
      # Server list updater
      # See https://github.com/qdm12/gluetun-wiki/blob/main/setup/servers.md#update-the-vpn-servers-list
      - UPDATER_PERIOD=24h
      - PORT_FORWARD_ONLY=on
      # - VPN_PORT_FORWARDING_PROVIDER=protonvpn
    restart: unless-stopped
  qbittorrent:
    image: lscr.io/linuxserver/qbittorrent:latest
    container_name: qbittorrent
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Pacific/Auckland
    volumes:
      - /home/uhax/Docker/qBittorrent/appdata:/config
      - /home/uhax/Torrents:/downloads #optional
      - /home/uhax/Downloads:/blackhole #optional
    restart: unless-stopped
    network_mode: "service:gluetun"
    depends_on:
      gluetun:
        condition: service_healthy
  qbittorrent-natmap:
    # https://github.com/soxfor/qbittorrent-natmap
    image: ghcr.io/soxfor/qbittorrent-natmap:latest
    container_name: qbittorrent-natmap
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
    environment:
      - TZ=Pacific/Auckland
      - QBITTORRENT_SERVER=localhost
      - QBITTORRENT_PORT=8080
      - QBITTORRENT_USER=
      - QBITTORRENT_PASS=
      # - VPN_GATEWAY=
      # - VPN_CT_NAME=gluetun
      # - VPN_IF_NAME=tun0
      # - CHECK_INTERVAL=300
      # - NAT_LEASE_LIFETIME=300
    restart: unless-stopped
    network_mode: "service:gluetun"
    depends_on:
      gluetun:
        condition: service_healthy
  jackett:
    image: lscr.io/linuxserver/jackett:latest
    container_name: jackett
    environment:
      - PUID=1000
      - PGID=1000
      - TZ=Pacific/Auckland
      - AUTO_UPDATE=true #optional
    volumes:
      - /home/uhax/Docker/Jackett/data:/config
      - /home/uhax/Docker/Jackett/blackhole:/downloads
    restart: unless-stopped
    network_mode: "service:gluetun"
    depends_on:
      gluetun:
        condition: service_healthy

[Nick-Portainer]

The issue you are experiencing, "Failed recreating container: Create container error: Error response from daemon: conflicting options: hostname and the network mode," occurs because Docker does not allow setting both the hostname and the network mode to "service:container_name".

You can resolve this issue by ensuring you do not set both the hostname and the network_mode to "service:container_name" in your Docker Compose file.