Hi there!
I’m trying to set up two services (through docker) both of which use port 8080 by default. However I am wanting these to services to sit behind a VPN using Gluetun. I added both of the ports I want to use to the compose file, but this just leads to only one of the services working as the other one will say “port already in use”. How can I strictly tell these services what port they shall use in the compose file?
This is how I did it so far;
docker-compose.yml
---
version: '3'
services:
vpn:
image: qmcgaw/gluetun:latest
container_name: vpn
restart: unless-stopped
cap_add:
- NET_ADMIN
environment:
- VPN_SERVICE_PROVIDER=custom
- VPN_TYPE=wireguard
- VPN_ENDPOINT_IP=####
- VPN_ENDPOINT_PORT=####
- WIREGUARD_PUBLIC_KEY=####
- WIREGUARD_PRIVATE_KEY=####
- WIREGUARD_PRESHARED_KEY=####
- WIREGUARD_ADDRESSES=####
devices:
- /dev/net/tun:/dev/net/tun
ports:
- '8080:8080'
#VPN
- 8888:8888/tcp
- 8388:8388/tcp
- 8388:8388/udp
- 8000:8000/tcp
- 8584:8584
- 8585:8585
volumes:
- /docker/appdata/gluetun:/gluetun
sabnzbd:
image: lscr.io/linuxserver/sabnzbd:latest
container_name: sabnzbd
network_mode: container:vpn
volumes:
- /docker/appdata/sabnzbd/data:/config
restart: unless-stopped
qbittorrent:
container_name: qbittorrent
image: linuxserver/qbittorrent:latest
restart: unless-stopped
network_mode: container:vpn
volumes:
- /docker/appdata/qbitorrent:/config
qBittorrent has an option to define the WEBUI_PORT. If you want to access it on say, port 8585, set this environment variable to
WEBUI_PORT=8585. Then in gluetun, continue to reference it as you do above. Hope this helps. https://registry.hub.docker.com/r/linuxserver/qbittorrentqbittorrent: container_name: qbittorrent image: linuxserver/qbittorrent:latest environment: - WEBUI_PORT=8585 restart: unless-stopped network_mode: container:vpn volumes: - /docker/appdata/qbitorrent:/configAh thanks! That solves one of the services at least. Merciii <3
Just use a different port number. I'm not sure why it's necessary to use the same one since you can change qbittorrent's port in the config files.
You can also map different ports to the container. For sake of argument lets say qtorrent had a fixed port you cannot change, that’s just what the application listens to. You can then map a different container port to that application port.
tldr, OP, you can’t have two containers in docker on the same container port
Fair enough, but OPs problem can be solved by changing a 0 to a 1 in a single file.
how haha
Right, my bad for the misleading/wrong title. This is my question - how do i map a port to a container that uses network_mode: …
Sorry that was my question, dont want to use the port twice, I want to tell the compose file what to use for each container, but I dont know how.
- Fixed the title, mb
In the VPN service you just expose the port you want and map it to the listener port on the service
vpn: ports: - 5000:8080 - 6000:8080
where you have
servicea listening on 8080 and serviceB on 8080 but exposed on 5000 and 6000 in the VPN service
for example
sorry im still quite new to this… do u have an example of another compose file that does this? Not sure where I put what.
On my phone so I haven’t got the access to give you a good example.
You see in your compose file in your original post you have ‘8080:8080’ under ports?
You should be able to add another line, the left hand side of the colon exposing a different port like so
… ports: - ‘8080:8080’ - ‘9090:9090’ …then one service you can access on port 8080 and the other you access on 9090
then under each service you want to expose you add the other port mappings
qtorrent: ports: - 8080:8080 sabnzb: ports: - 9090:8080edit - so you should end up with the vpn container exposing 8080 which points to the service exposing 8080 which maps to application listening on 8080
and the same for 9090 -> 9090 -> 8080
but I thought the containers had to have "network_mode: container:vpn", in order to strictly only be able to communicate through the VPN.
When I am home Ill get an example from my setup 👍
mercii :)
when I do this I get the error message that the ports are already in use by the vpn container :|
Ah, well the qbittorrent config file should live in the directory you mapped to /config. I think you can pull the default one and edit it for your container.
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
Fewer Letters More Letters HTTP Hypertext Transfer Protocol, the Web HTTPS HTTP over SSL IP Internet Protocol SSL Secure Sockets Layer, for transparent encryption VPN Virtual Private Network
4 acronyms in this thread; the most compressed thread commented on today has 10 acronyms.
[Thread #213 for this sub, first seen 12th Oct 2023, 16:55] [FAQ] [Full list] [Contact] [Source code]
You could join two different networks
And bind the port to that.
Example:
ports: - 8880:8880 #HTTP port #optional - 8443:8443 #HTTPS port - 3478:3478/udp - 10001:10001/udp - 8080:8080 - "10.0.0.253:1900:1900/udp" #optional - 8843:8843 #optional - 6789:6789 #optional - 5514:5514/udp #optional networks: service: net: ipv4_address: 10.0.0.253In that case I binded the container to the service network but needed a static IP reachable by outside devices.
So I created a macvlan adapter, binded the port 1900 to that adress and all was fine.
Should probably work for your use case.
