How to setup Basic Auth password authentication for NGINX

Create a *.htpasswd file. Eg:

touch /etc/nginx/conf.d/nginx.htpasswd

Add an user to the file:

 echo -n 'user1' >> ./nginx/nginx.htpasswd

Generate a password to the user using openssl ultility:

openssl passwd -apr1 >> ./nginx/nginx.htpasswd

The above command will prompt you for a password and confirmation. Your nginx.htpasswd file should now look like this

user1:$apr1$EWcGMeKU$o4kl71mZcWWDwQugwt2rt.

In any Nginx route config, simple add the following to password protect the route:

    server {
        listen       80;
        server_name  example.com;

        location /  {
            proxy_pass      http://localhost:80;
			
            # password protection
            auth_basic "Authentication Required";
            auth_basic_user_file /etc/nginx/conf.d/nginx.htpasswd;
        }
    }