why api uses emptyDir instead of PVC?

[chz8494]

It takes a long time for API to boot up, why api uses emptyDir instead of PVC? so it can also fix the issue that K8s keeps restarting API pods.

 "spec": {
    "volumes": [
      {
        "name": "config",
        "configMap": {
          "name": "monocular-monocular-api-config",
          "defaultMode": 420
        }
      },
      {
        "name": "cache",
        "emptyDir": {}
      }
    ],
        "volumeMounts": [
          {
            "name": "cache",
            "mountPath": "/monocular"

[prydonius]

emptyDirs are persisted through container restarts, they just aren't when pods get deleted. So switching to a PV will not really affect the restart problem.

[chz8494]

If I use pvc to keep downloaded charts from deleting or upgrading pod, will API downloads all charts all over again every time when it boots up?

[prydonius]

it won't know, you're right that it'll be faster if upgrading or after deleting. That said, I don't think we'll change this as it's meant to be a cache and not really persisted.