This script can be run on Heroku using CRON and will automatically create and manage a wildcard SSL certificate issued by LetsEncrypt. If you're running a Heroku application with dynamic subdomains this is a great way to get a free SSL cert. Found this useful? Considering sponsoring our open source.
Deploy to Heroku and set up the schedule to look like this:
Ensure all environment variables in cert.sh are set in the environment:
DOMAINCLOUDFLARE_EMAILCLOUDFLARE_API_KEYHEROKU_API_KEYHEROKU_APP