gitlab runner aws autoscaler with ec2 spot instance

EC2 Spot Instance Price as a runner/agent

iam-policy

ec2 gitlat runner manager only can delete EC2 with ec2 profile gitlab-runner-agent

{
           "Action": [
               "ec2:TerminateInstances"
           ],
           "Effect": "Allow",
           "Resource": "arn:aws:ec2::<AWS_ACCOUNT_ID>:instance/*",
           "Condition": {
               "StringEquals": {
                   "ec2:InstanceProfile": "arn:aws:iam::<AWS_ACCOUNT_ID>:instance-profile/gitlab-runner-agent"
               }
           }
       },

One Gitlab runner use by multiple project

Disable lock runner in primary project

in other project enable runner in aws

MachineOptions for AWS

https://docs.docker.com/machine/drivers/aws/

MachineOption for GCE

https://docs.docker.com/machine/drivers/gce/

example for gce with preemptible

https://verkoyen.eu/blog/2018/08/scaling-gitlab-runner-on-google-cloud-platform