HostPath volumes on Mac

Consider a pod like the following:

metadata:
  name: foo
spec:
  containers:
    image: alpine
    name: bar
    volumeMounts:
    - mountPath: /data
      name: baz
  volumes:
  - hostPath:
      path: /Users/user/data
    name: baz

I’d expect this to mount /Users/user/data folder from my host to the container, but apparently what is getting mounted is a folder from the underlying lima VM. My understanding that there is no osxfs/Fuse driver alternative for Desktop in Rancher Desktop? Is there any plans for it? Lima seems to be capable to be translating my local paths to the default VM just fine - maybe it’s a matter of missing configuration?

[jandubois]

I’ve verified that this is indeed broken in RD 0.4.1, but it does work in the latest development builds that will become RD 0.5.0 within the next couple of days.

I strongly suspect that this is due to RD 0.4.1 bundling an older version of Lima, and I think the issue was fixed by https://github.com/lima-vm/lima/pull/247 which was merged into Lima just 11 days ago.

[jandubois]

That explains it.

Indeed. I forgot that RD 0.4.1 doesn’t map the usual directories. In 0.5.0 the mounts will be like this:

mounts:
  - location: /Users/jan/Library/Caches/rancher-desktop/k3s
    writable: false
  - location: "~"
    writable: false
  - location: /tmp/rancher-desktop
    writable: true