nginx thing

nginx-app-basic.com

server {
  listen 80;
  server_name myapp.com;

  location / {
    # Pass off API and socket requests to the app server
    proxy_pass http://127.0.0.1:1337;
    proxy_redirect     off;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

    proxy_set_header   Host             $host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto $scheme;
  }
}

nginx-app-lb.com

# See: https://nginx.org/en/docs/http/load_balancing.html
#      https://nginx.org/en/docs/http/ngx_http_upstream_module.html

upstream my-app {
    least_conn;
    server 127.0.0.1:1337; # server 1
    server 127.0.0.2:1337; # server 2
    server 127.0.0.3:1337; # server 3
}

server {
  listen 80;
  server_name myapp.com www.myapp.com;

  location / {
    # Pass off API and socket requests to the app server
    proxy_pass http://my-app;
    proxy_redirect     off;
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection "upgrade";

    proxy_set_header   Host             $host;
    proxy_set_header   X-Real-IP        $remote_addr;
    proxy_set_header   X-Forwarded-For  $proxy_add_x_forwarded_for;
    proxy_set_header   X-Forwarded-Proto $scheme;
  }
}