Configuring Jetty for HTTPS with Let's Encrypt
The Jetty documentation for Configuring SSL/TLS is long and daunting, but makes no mention of how to work with the EFF's Let's Encrypt certificate authority, which provides free automated certificates with the aim of having the entire web available over HTTPS.
This article provides the steps for obtaining a Let's Encrypt certificate, importing it into Jetty, enabling HTTPS using the certificate, and handling renewals.
It assumes you have Jetty setup in a home/base configuration, serving over HTTP for one or more Internet-facing domain names.
As with all such guides, it is recommended to read all steps before making any changes, and ensure you have backups for any existing files you may modify.