Manage virtual machines with machine provisioner

Server v4.4

Server Admin

Provider

The following configuration options are for the machine provisioner provider, either AWS or GCP.

AWS

Machine provisioner is configured to work with AWS EC2 in your values.yaml file. During installation you will have set up a security group and authentication. See the Installation Phase 3 - Execution Environments page for more information.

The information in this section describes post-installation configuration options for machine provisioner.

Windows image

If you require Windows executors, you can supply an AMI ID in your values.yaml file. To create a Windows image, use the CircleCI server Windows image builder.

machine_provisioner:
  providers:
    ec2:
      ...
      windowsAMI: "<my-windows-ami>"

Alternative Linux VM image

If you wish to provide a custom AMI for Linux machine executors, you can supply an AMI ID in your values.yaml file. To create a Linux image, use the CircleCI server Linux image builder.

machine_provisioner:
  providers:
    ec2:
      ...
      linuxAMI: "<my-linux-ami>"

Default AWS AMI lists

The default AMIs for server v4.4 are based on Ubuntu 22.04.

x86 AMI list

Region	AMI
`us-east-1`	`ami-060a1e5d499c85d12`
`us-east-2`	`ami-036fa23a3bd3b5013`
`ca-central-1`	`ami-0e323ff60823ceb5c`
`ap-south-1`	`ami-072d2c41d591ee7a5`
`ap-southeast-2`	`ami-0880195a4612a9d61`
`ap-southeast-1`	`ami-0177e901826e7b422`
`eu-central-1`	`ami-00588b75fa9a72eff`
`eu-west-1`	`ami-08a090a8c770fe41f`
`eu-west-2`	`ami-056ff1116a86d9e87`
`sa-east-1`	`ami-0117daec76cc825e7`
`us-west-1`	`ami-09bc39e1cf1850c79`
`us-west-2`	`ami-01f4236b649731f59`
`ap-northeast-1`	`ami-0d71a7594982c0233`
`ap-northeast-2`	`ami-06b70b9f78e46f8b4`
`eu-west-3`	`ami-0af2e6edf47f7b7cc`
`us-gov-east-1`	`ami-00e0319619e88edf7`
`us-gov-west-1`	`ami-0fdf4561a0d3b0346`

Arm AMI list

Region	AMI
`us-east-1`	`ami-09688117b98d2fc85`
`us-east-2`	`ami-0f74df98c729f23da`
`ca-central-1`	`ami-0c38cb9bafc2d2367`
`ap-south-1`	`ami-0bd058bca7362651a`
`ap-southeast-2`	`ami-063193aeb76899a04`
`ap-southeast-1`	`ami-0b93f7ee96e0544c8`
`eu-central-1`	`ami-0603edd8ca55f1aea`
`eu-west-1`	`ami-06284417985a234a6`
`eu-west-2`	`ami-042850328df475cf4`
`sa-east-1`	`ami-065ea52e0a95d6097`
`us-west-1`	`ami-008f62919e40a0607`
`us-west-2`	`ami-0f02394a567f27c57`
`ap-northeast-1`	`ami-0cd7ad99dc5c77394`
`ap-northeast-2`	`ami-02c787546f70518d8`
`us-gov-east-1`	`ami-0b0841c7bba30ab06`
`us-gov-west-1`	`ami-02268e2fe5572a88c`

GCP

Machine provisioner is configured to work with GCP in your values.yaml file. During installation you will have set up a security group and authentication. See the Installation Phase 3 - Execution Environments page for more information.

The information in this section describes post-installation configuration options for machine provisioner.

Windows image

If you require Windows executors, you can supply an AMI ID in your values.yaml file. To create a Windows image, use the CircleCI server Windows image builder.

machine_provisioner:
  providers:
    gcp:
      ...
      windowsImage: "<my-windows-image>"

Alternative Linux VM image

If you wish to provide a custom AMI for Linux machine executors, you can supply an AMI ID in your values.yaml file. To create a Linux image, use the CircleCI server Linux image builder.

machine_provisioner:
  providers:
    gcp:
      ...
      linuxImage: "<my-linux-image>"

Instance preallocation

When using preallocated instances be aware that a cron job is scheduled to cycle through these instances once per minute to ensure they do not end up in an unworkable state.

To configure server to keep instances preallocated, use the keys shown in the following machine-provisioner-config.yaml examples:

For a full list of options, see the Installation Reference page.

# -- Configuration options for, and numbers of, prescaled instances for remote Docker jobs.
scheduled:
    - executor: linux
      class: medium
      image: docker-default
      cron: ""
      count: 2

# -- Configuration options for, and numbers of, prescaled instances for machine jobs.
scheduled:
  - executor: linux
    class: medium
    image: default
    cron: ""
    count: 2

Apply changes

Apply the changes made to your values.yaml file:

namespace=<your-namespace>
helm upgrade circleci-server oci://cciserver.azurecr.io/circleci-server -n $namespace --version 4.4.7 -f <path-to-values.yaml>