server {
    # SSL Key locations
    ssl_certificate     /etc/letsencrypt/live/${PORTAINER_DOMAIN}/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/${PORTAINER_DOMAIN}/privkey.pem;

    listen ${HTTPS_PORT} ssl;
    listen [::]:${HTTPS_PORT} ssl;
    server_name ${PORTAINER_DOMAIN};

    location / {
        proxy_set_header Connection "upgrade";

        resolver 127.0.0.11;
        proxy_pass http://${PORTAINER_HOST}:9000;
    }
}