Show this when the main site is offline for maintenance/outage.
- Make sure that this directory is symlinked to
/srv/sites/gms-maintenance-site/ - Move the selected Nginx config to your /etc/nginx/sites-enabled/ to replace the production nginx config.
- Make sure that the SSL cert paths defined in the nginx config exist on your server (they should have be created with python-certbot-nginx) - they can be tarred and copied from the main web server if running this somewhere else (e.g. infra outage).
sudo systemctl nginx restart