Docker Network Alias

README.md

Reference

docker network create lb
docker run -d --name nginx1  --net lb --net-alias nginx nginx
docker run -d --name nginx2  --net lb --net-alias nginx nginx
docker run -d --name nginx-lb -p 80:80 -v $(pwd):/data --net lb nginx
docker exec -ti nginx-lb bash

1. In the nginx-lb console

ping nginx
ping nginx
cp /data/proxy.conf /etc/nginx/conf.d/
rm /etc/nginx/conf.d/default.conf
nginx -s reload
exit

2. Check Web Server, then run another nginx.

docker run -d --name nginx3  --net lb --net-alias nginx nginx

3. Check Web Server again. The nginx3 isn't include nginx r-proxy. Into the nginx3 console and reload the nginx daemon.

docker exec -ti nginx-lb bash
nginx -s reload
exit

4. Check Web Server have include nginx3.

proxy.conf

    upstream myapp1 {
        server nginx;
    }

    server {
        listen 80;

        location / {
            proxy_pass http://myapp1;
        }
    }