Nginx Server Block - Before Certbot

Reference server block for getting Nginx running in order to execute Certbot and aquire SSL certificates.

server {
listen 80;
listen [::]:80;
server_name example.com;
root /var/www/example.com;
index index.html index.htm;
} 

Certbot will automagically edit the server block file and add the needed lines as seen in this example.