map $http_upgrade $connection_upgrade {
        default upgrade;
        '' close;
    }
upstream firefox_backend {
       server 192.168.88.52:32487;
       server 1.1.1.1 backup;
    }

server {
	server_name firefox.tryton.geeraert.eu www.firefox.tryton.geeraert.eu;
        location / {
	    proxy_pass https://firefox_backend;
            proxy_http_version 1.1;
            proxy_set_header Upgrade $http_upgrade;
            proxy_set_header Connection $connection_upgrade;
            proxy_set_header Host $host;
        }
        location /.well-known/acme-challenge/ {
		root /var/www/certbot;
        }
	
	listen 443 ssl; # managed by Certbot
        ssl_certificate /etc/nginx/ssl/live/tryton.geeraert.eu/fullchain.pem;
        ssl_certificate_key /etc/nginx/ssl/live/tryton.geeraert.eu/privkey.pem;
	#include /etc/letsencrypt/options-ssl-nginx.conf; # managed by Certbot
	#ssl_dhparam /etc/letsencrypt/ssl-dhparams.pem; # managed by Certbot


}
server {
    if ($host = www.firefox.tryton.geeraert.eu) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


    if ($host = firefox.tryton.geeraert.eu) {
        return 301 https://$host$request_uri;
    } # managed by Certbot


        server_name www.firefox.tryton.geeraert.eu firefox.tryton.geeraert.eu;
    listen 80;
    return 404; # managed by Certbot

}