Rename template/web.ssl.template.yml to some other name (templates/my-web.ssl.template.yml) and use this in the templates: section of containers/app.yml.
Restore its original content with
git restore templates/web.ssl.template.yml
Rename template/web.ssl.template.yml to some other name (templates/my-web.ssl.template.yml) and use this in the templates: section of containers/app.yml.
Restore its original content with
git restore templates/web.ssl.template.yml