How to store image layers from docker build on the host machine?

[obergner]

We have a fairly complex project that uses Docker containers for its build process. Some of the Docker images that we use to improve the developer experience are fairly time-consuming to build.

It seems as if Colima caches the image layers generated by docker build ... in /var/lib/docker, inside the VM, and that the cached image layers do not survive restarts of the Mac host. Is this correct?

If so, how can I configure Colima to cache image layers on the host machine instead?

[abiosoft]

It does survive the restart of the macOS host. Are you having a contrary experience?

[obergner]

@abiosoft You are right: it does seem to survive restarts. I just did several tests again. It seems that one of the base images we use in the build has a high update frequency, we led to frequent rebuilds. Nothing to do with reboots. Thanks