Existent persistent volume not found by the container

Rancher 2.x
1

Hi,
I’ve a new namespace in which I’ve launched an Helm app that creates some volumes and some containers.
The containers fail to start with this message:

Warning	FailedAttachVolume	AttachVolume.Attach failed for volume "library-site-test-mariadb-data" : rpc error: code = NotFound desc = ControllerPublishVolume: the volume library-site-test-mariadb-data not exists	a few seconds ago
Warning	FailedMount	Unable to attach or mount volumes: unmounted volumes=[mariadb-data], unattached volumes=[mariadb-data default-token-fmd87]: timed out waiting for the condition

But in the volumes section of this namespace the volume exists.
Which could be the problem?
How can I debug this problem?

I’m using Rancher 2.5.6 and Longhorn.

Thank you very much

Claudio

2

I’ve seen that the Helm chart creates the volume on Rancher but not on Longhorn.
So this is why I have that error.
I still don’t know why the helm chart doesn’t create the volume on Longhorn.

3

I’ve solved adding manually the volume from the Longhorn interface.