simple tunnel example

docker-compose.tunnel.yml

# public server compose for foobar.com

services:
  nginx:
    image: library/nginx:1.19.6
    network_mode: host
    volumes:
      - ./conf.d:/etc/nginx/conf.d
      - /etc/letsencrypt:/etc/letsencrypt

  tunnel:
    image: jpillora/chisel:latest
    network_mode: host
    command: "server -p 8080 --reverse"

docker-compose.yml

# client

services:
  # any dev watcher server
  serve:
    image: node:14.15.4-alpine
    entrypoint: npm
    command: ["run", "watch"]
    tty: true
    ports:
      - "3000:3000"
      
  tunnel:
    image: jpillora/chisel:latest
    network_mode: host
    command: "client foobar.com:8080 R:3000:3000"

foobar.conf

# conf.d/foobar.conf

server {
    server_name foobar.com www.foobar.com;
    listen *:443 ssl;

    ssl_certificate /etc/letsencrypt/live/foobar.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/foobar.com/privkey.pem;
    ssl_trusted_certificate /etc/letsencrypt/live/foobar.com/chain.pem;

    location / {
        proxy_pass http://localhost:3000;
    }
}