Nginx config for having project.dev working locally

local_dev.conf

upstream app_server {
  server localhost:8080 fail_timeout=0;
}

server {
  listen 80;
  server_name "~^(?<base_dir>.+)\.sim\.bz$";
  if ($base_dir = "") {
    set $base_dir ".";
  }

  set $username "jd";

  access_log /var/log/nginx/dev.access.log;
  error_log /var/log/nginx/dev.error.log;

  location / {
    root /home/$username/.sites/$base_dir/;
    index index.html index.htm;
    try_files $uri/index.html $uri @app;
  }

  location /error/ {
    root /home/$username/.sites/;
    rewrite ^(/error)(.*)$ /errors$2 break;
  }

  location @app {
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header Host $http_host;
    proxy_redirect off;
    proxy_pass http://app_server;
    proxy_intercept_errors on;
    error_page 502 =502 /error/502.html;
  }

}