generic nginx proxy for docker

README.md

PoC for a generic HTTP proxy for Docker hosts.

http://myapp.example.com:8080 → http://myapp.dev.docker:8080

nginx.conf

daemon off;

events {
    
}

http {
    server {
        listen 8080;
        listen 9200;
        
        server_name ~^(?<app_name>[^.]+)\.example\.com$;
        resolver 172.17.42.1;
        
        location / {
            proxy_pass http://$app_name.dev.docker:$server_port;
            
            ## websocket support
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection "upgrade";
        }
    }
}

For web apps you can have all your containers bind to port 80 and not worry about port mappings

Bingo, @crosbymichael!