Awesome
Docker WireGuard Tunnel
Connect two or more Docker servers together sharing container ports between them via a WireGuard tunnel.
For example a Docker server without a public IP address behind a NAT can expose container ports to another Docker server that has a public IP address to allow incoming connections.
Usage Example
This assumes that you have already setup a subdomain DNS entry for your domain, for example:
wireguard-tunnel.example.com
Server
Will accept connections on behalf of a peer and tunnel them to the designated peer.
docker-compose.yml
services:
wireguard-tunnel-server:
image: ghcr.io/digitallyrefined/docker-wireguard-tunnel:v3
container_name: wireguard-tunnel-server
environment:
# Update to your domain
- DOMAIN=wireguard-tunnel.example.com
# Number of peers to auto generate config for
- PEERS=1
# Services to expose format (comma-separated)
# SERVICES=peer-id:peer-container-name:peer-container-port:expose-port-as
- SERVICES=peer1:nginx:80:8080,peer1:nginx-demo:80:8081
cap_add:
- NET_ADMIN
volumes:
- ./config:/etc/wireguard
restart: unless-stopped
ports:
- '51820:51820/udp'
- 8080:8080
- 8081:8081
docker compose up -d
docker compose logs -f
Once started, a peer1.conf
file will be automatically generated in the config
directory.
Peer
Will connect to the server via WireGuard and setup a tunnel to expose the listed ports.
Move the config/peer1.conf
file from the server that was automatically generated and rename it to config/wg0.conf
on the peer.
docker-compose.yml
services:
wireguard-tunnel-peer:
image: ghcr.io/digitallyrefined/docker-wireguard-tunnel:v3
container_name: wireguard-tunnel-peer
environment:
# Note that DOMAIN & PEERS are not required for the peer
# Services to expose format (comma-separated)
# SERVICES=peer-id:peer-container-name:peer-container-port:expose-port-as
- SERVICES=peer1:nginx:80:8080,peer1:nginx-demo:80:8081
cap_add:
- NET_ADMIN
volumes:
- ./config:/etc/wireguard
restart: unless-stopped
links:
- nginx:nginx
- nginx-demo:nginx-demo
nginx:
image: nginx
restart: unless-stopped
nginx-demo:
image: nginxdemos/hello
restart: unless-stopped
docker compose up -d
docker compose logs -f
Note: if you have a firewall in front of your server you will need to allow connections on port 51820/udp
for the WireGuard server, and connections on ports 8080
and 8081
for the 2 demo nginx servers.
Once started you should be able to access both nginx servers via their exposed ports on the WireGuard server, for example:
wireguard-tunnel.example.com:8080
and wireguard-tunnel.example.com:8081
You may want to combine the WireGuard tunnel server with Traefik or Nginx Proxy Manager or use a 3rd party service such as Fly.io.
Examples using Docker WireGuard Tunnel with: