Yep we see spot instances immediately created - there's no noticeable delay (compared to build times) against having permanent EC2 instances running. For our ru

Yep we see spot instances immediately created - there's no noticeable delay (compared to build times) against having permanent EC2 instances running. For our runners we want to use spot instances, the important part of the gitlab-runner register command are: --executor docker+machine \ --machine-machine-driver amazonec2 \ --machine-machine-options "amazonec2-request-spot-instance=true \ --machine-machine-options "amazonec2-spot-price=" That last one means our bid defaults to the current on-demand price, which seems to get fulfilled immediately. FWIW we're using m4.large instances in eu-west-1a and according to the AWS UI the spot price has been perfectly consistent (at about 1/3 of on-demand) for at least the last 3 months so maybe that consistency is why it works so well for us.