Volumes

Every runner instance has 3 volumes: root, swap and temp.

The root volume contains all the software of the runner image. It is compressed to reduce EBS costs and read-only to guarantee consistency and make it tamper-proof.

The swap volume contains 4 GiB swap space and is recreated on every boot.

The temp volume contains the temp space (default: 14 GiB) for the runner which is reformatted on every boot.

You can see details about the size of these volumes in the Set up runner section of the job output: