macOS VMs

macOS Virtual Machines

It is possible to run M1 macOS Virtual Machines (like how one can run Linux containers) on the Cirrus Cloud macOS Cluster. Use macos_instance in your .cirrus.yml files:

macos_instance:
  image: ghcr.io/cirruslabs/macos-runner:sonoma

task:
  script: echo "Hello World from macOS!"

Available images

Cirrus CI is using Tart virtualization for running macOS Virtual Machines on Apple Silicon. Cirrus CI Cloud only allows ghcr.io/cirruslabs/macos-runner:sonoma image which contains the last 3 versions of Xcode.

Underlying Orchestration Technology

Under the hood Cirrus CI is using Cirrus CI's own Persistent Workers. See more details in out blog post.