Compute 

Both the runner and worker virtual machines (VM) are executed on Amazon Web Services (AWS) in the U.S.

Ephemeral 

A dedicated VM is utilized for each job such that no two jobs are executed in the same VM. If desired, this can be relaxed for performance and efficiency to allow multiple jobs to run sequentially in the same VM. When exhausted the VM is destroyed and no artifacts are kept.

If jobs utilize the cache feature, S3 storage will be utilized and kept for 7 days. All cache access is performed using pre-signed URLs.