nginx-custom.conf

# Expires map
map $sent_http_content_type $expires {
    default                    off;
    text/html                  epoch;
    text/css                   max;
    application/json           max;
    application/javascript     max;
    ~image/                    max;
}

server {
    listen 80;
    include /etc/nginx/mime.types;

    server_name  portal_web;
    location / {
        root /usr/share/nginx/html/;
        index index.html index.htm;
        try_files $uri $uri/ /index.html =404;
      }

    expires $expires;
    gzip  on;
}