config.aws.toml

# . . . remaining part of /etc/gitlab-runner/config.toml

[runners.machine]
  MachineDriver = "amazonec2"
  MachineName = "gitlab-docker-machine-%s"
  MachineOptions = [
    "amazonec2-access-key=XXXX",
    "amazonec2-secret-key=XXXX",
    "amazonec2-region=us-central-1",
    "amazonec2-vpc-id=vpc-xxxxx",
    "amazonec2-subnet-id=subnet-xxxxx",
    "amazonec2-use-private-address=true",
    "amazonec2-tags=runner-manager-name,gitlab-aws-autoscaler,gitlab,true,gitlab-runner-autoscale,true",
    "amazonec2-security-group=docker-machine-scaler",
    "amazonec2-instance-type=m4.2xlarge",
  ]