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:

• DOMAIN
• CLOUDFLARE_EMAIL
• CLOUDFLARE_API_KEY
• HEROKU_API_KEY
• HEROKU_APP