upstream <%= domain %> {
  server unix:<%= shared_path %>/unicorn/tmp/sockets/unicorn.sock fail_timeout=0;
}

server {
  listen 80;
  server_name <%= domain %> ;
  root <%= current_path %>/public;

  location ^~ /assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @<%= domain %>;
  location @<%= domain %>{
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://<%= domain %>;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
}

upstream <%= domain %> {
  server unix:<%= shared_path %>/unicorn/tmp/sockets/unicorn.sock fail_timeout=0;
}

server {
  listen 80;
  server_name <%= domains.join(" ") %>;
  root <%= current_path %>/public;

  location ^~ /assets/ {
    gzip_static on;
    expires max;
    add_header Cache-Control public;
  }

  try_files $uri/index.html $uri @<%= domain %>;
  location @<%= domain %>{
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://<%= domain %>;
  }

  error_page 500 502 503 504 /500.html;
  client_max_body_size 4G;
  keepalive_timeout 10;
}

Fix the multiple nginx domain problem
Fix the multiple nginx domain problem