In the past I used a self-built Docker container that was running easy-rsa with a customized openssl.cnf file. This got very annoying, very quickly, as I needed to import my private CA to all systems I wanted to use it on. A couple of weeks back I decided to use one of my domains, frdr.
Managing your own CA is usually very tedious and time consuming, so I decided to partly automate it using a Docker container and easy-rsa. The container generates my CA and server/client certificates for all my devices in my home office and the test lab. VMware vSphere always offered the possibility to use your own certificates, but importing and managing them for all your devices in vCenter was a bit of a horrible experience in version 5.