filecache path doesn't support nested directories

[pulquero]

Which version of blobfuse was used?

2.0.3

Which OS distribution and version are you using?

AKS

If relevant, please share your mount command.

Managed CSI blob driver.

What was the issue encountered?

Out of the blue, started encountering this error:
[file_cache.go (245)]: FileCache: config error creating directory after clean [mkdir /mnt//subscriptions/XXXXXX/resourceGroups/XXXXX/providers/Microsoft.Storage/storageAccounts/XXXXX no such file or directory]

The command needs to use mkdir -p (os.MkdirAll). As this is a managed driver, we have no apparent access to the config to alter the file path.

Have you found a mitigation/solution?

Logging into a node and manually creating the required path results in a successful mount. This is not a feasible workaround as our nodes scale up and down.

Please share logs if available.