I’ve been considering moving away from gitlab for a long time, but so far, as far as I know, it’s still the only service that supports ephemeral self hosted runners. with gitlab it can utilize docker-machine to spin up vps on demand and ensure only a single job runs on each vps before it gets destroyed again.
I’m indeed talking about spinning up full vps. with untrusted workloads I’d rather have the best isolation reasonably possible. effectively, this is similar to how Github hosted runners work. my gitlab is currently primarily working by spinning up Hetzner cloud vps on demand, but I’ve also used this with proxmox before.
if I have very sensitive secrets accessible to my ci pipeline I want to minimize the risk of leakage through compromise of CI environments to a minimum.