http://chriskief.com/2013/12/07/configuring-nginx-with-jira-sendy/

jira.nginx.conf

server {
    listen          80;
    server_name     jira.example.com;
    access_log      /var/log/nginx/jira.example.com.access.log  main;
    error_log       /var/log/nginx/jira.example.com.error.log;

    location / {
        proxy_pass              http://localhost:8080;
        proxy_set_header        Host             $host;
        proxy_set_header        X-Real-IP        $remote_addr;
        proxy_set_header        X-Forwarded-For  $remote_addr;
        port_in_redirect        off;
        proxy_redirect          http://jira.example.com:8080/jira  /;
        proxy_connect_timeout   300;
    }

    # deny access to .htaccess files
    location ~ /\.ht {
        deny        all;
    }

    # redirect server error pages to the static page /50x.html
    error_page      500 502 503 504  /50x.html;
    location = /50x.html {
        root        /usr/share/nginx/html;
    }
}