A description of a nginx configuration for two Docker containers

balancing_two_docker_containers

upstream demo.localhost {
    server 127.0.0.1:3001;
}

server {
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    server_name demo1.localhost;

    location / {
        proxy_pass http://demo.localhost;
        include /etc/nginx/proxy_params;
    }
}

upstream demo2.localhost {
    server 127.0.0.1:3002;
}

server {
    gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript;

    server_name demo2.localhost;

    location / {
        proxy_pass http://demo2.localhost;
        include /etc/nginx/proxy_params;
    }
}