GoDoxy/docs/docker.md

Docker container guide

Table of content

• Docker container guide
  • Table of content
  • Setup
  • Labels
  • Troubleshooting
  • Docker compose examples
    • Local docker provider in bridge network
      • Proxy setup
    • Services URLs for above examples

Setup

1. Install wget if not already

2. Run setup script

   bash <(wget -qO- https://github.com/yusing/go-proxy/raw/main/setup-docker.sh)

   What it does:

   • Create required directories
   • Setup config.yml and compose.yml

3. Verify folder structure and then cd go-proxy

   go-proxy
   ├── certs
   ├── compose.yml
   └── config
       ├── config.yml
       └── providers.yml
   

4. Enable HTTPs (optional)

   • To use autocert feature

     • completing autocert section in config/config.yml
     • mount certs/ to /app/certs to store obtained certs

   • To use existing certificate

     mount your wildcard (*.y.z) SSL cert

     • cert / chain / fullchain -> /app/certs/cert.crt
     • private key -> /app/certs/priv.key

5. Modify compose.yml fit your needs

   Add networks to make sure it is in the same network with other containers, or make sure proxy.<alias>.host is reachable

6. Run docker compose up -d to start the container

7. Start editing config files in http://<ip>:8080

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Labels

• proxy.aliases: comma separated aliases for subdomain matching

  • default: container name

• proxy.*.<field>: wildcard label for all aliases

Labels below should have a proxy.<alias>. prefix.

i.e. proxy.nginx.scheme: http

• scheme: proxy protocol

  • default:
    • if port is like x:y: tcp
    • if port is a number: http
  • allowed: http, https, tcp, udp

• host: proxy host

  • default: container_name
  • allowed: IP address, hostname

• port: proxy port

  • default: first port in ports:
  • http(s): number in range og 0 - 65535
  • tcp, udp: x:y
    • x: port for go-proxy to listen on
    • y: port, or service name of target container see constants.go:14 for service names

• no_tls_verify: whether skip tls verify when scheme is https

  • default: false

• path: proxy path (http(s) proxy only)

  • default: empty

• path_mode: mode for path handling

  • default: empty

  • allowed: empty, forward

    • empty: remove path prefix from URL when proxying
      1. apps.y.z/webdav -> webdav:80
      2. apps.y.z./webdav/path/to/file -> webdav:80/path/to/file
    • forward: path remain unchanged
      1. apps.y.z/webdav -> webdav:80/webdav
      2. apps.y.z./webdav/path/to/file -> webdav:80/webdav/path/to/file

• set_headers: a list of header to set, (key:value, one by line)

  Duplicated keys will be treated as multiple-value headers

  labels:
    proxy.app.set_headers: |
      X-Custom-Header1: value1
      X-Custom-Header1: value2
      X-Custom-Header2: value2
  

• hide_headers: comma seperated list of headers to hide

• load_balance: enable load balance

  • allowed: 1, true

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Troubleshooting

• Firewall issues

  If you are using ufw with vpn that drop all inbound traffic except vpn, run below:

  sudo ufw allow from 172.16.0.0/16 to 100.64.0.0/10

  Explaination:

  Docker network is usually 172.16.0.0/16

  Tailscale is used as an example, 100.64.0.0/10 will be the CIDR

  You can also list CIDRs of all docker bridge networks by:

  docker network inspect $(docker network ls | awk '$3 == "bridge" { print $1}') | jq -r '.[] | .Name + " " + .IPAM.Config[0].Subnet' -

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Docker compose examples

Local docker provider in bridge network

volumes:
  adg-work:
  adg-conf:
  mc-data:
  palworld:
  nginx:
services:
  adg:
    image: adguard/adguardhome
    restart: unless-stopped
    labels:
      - proxy.aliases=adg,adg-dns,adg-setup
      - proxy.adg.port=80
      - proxy.adg-setup.port=3000
      - proxy.adg-dns.scheme=udp
      - proxy.adg-dns.port=20000:dns
    volumes:
      - adg-work:/opt/adguardhome/work
      - adg-conf:/opt/adguardhome/conf
  mc:
    image: itzg/minecraft-server
    tty: true
    stdin_open: true
    container_name: mc
    restart: unless-stopped
    labels:
      - proxy.mc.scheme=tcp
      - proxy.mc.port=20001:25565
    environment:
      - EULA=TRUE
    volumes:
      - mc-data:/data
  palworld:
    image: thijsvanloef/palworld-server-docker:latest
    restart: unless-stopped
    container_name: pal
    stop_grace_period: 30s
    labels:
      - proxy.aliases=pal1,pal2
      - proxy.*.scheme=udp
      - proxy.pal1.port=20002:8211
      - proxy.pal2.port=20003:27015
    environment: ...
    volumes:
      - palworld:/palworld
  nginx:
    image: nginx
    container_name: nginx
    volumes:
      - nginx:/usr/share/nginx/html
  go-proxy:
    image: ghcr.io/yusing/go-proxy:latest
    container_name: go-proxy
    restart: always
    network_mode: host
    volumes:
      - ./config:/app/config
      - /var/run/docker.sock:/var/run/docker.sock:ro
  go-proxy-frontend:
    image: ghcr.io/yusing/go-proxy-frontend:latest
    container_name: go-proxy-frontend
    restart: unless-stopped
    network_mode: host
    labels:
      - proxy.*.aliases=gp
    depends_on:
      - go-proxy

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Proxy setup

go-proxy:
  image: ghcr.io/yusing/go-proxy
  container_name: go-proxy
  restart: always
  network_mode: host
  volumes:
    - ./config:/app/config
    - /var/run/docker.sock:/var/run/docker.sock:ro
  labels:
    - proxy.aliases=gp
    - proxy.gp.port=8080

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Services URLs for above examples

• gp.yourdomain.com: go-proxy web panel
• adg-setup.yourdomain.com: adguard setup (first time setup)
• adg.yourdomain.com: adguard dashboard
• nginx.yourdomain.com: nginx
• yourdomain.com:53: adguard dns
• yourdomain.com:25565: minecraft server
• yourdomain.com:8211: palworld server

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