Implement topology awareness

[thcyron]

Fixes #10.

Todo

• Update storageclass manifest (WaitForFirstConsumer)
• Update readme to enable feature gates for CSINoteInfo, etc.
• Update readme to create CSINoteInfo CRD

[thcyron]

I pushed hetznercloud/hcloud-csi-driver:1.1.0-rc.1 to Docker Hub with that change. Hope to be able to test that on a real cluster today before merging.

cc @mcadam

[deacix]

How to use it? It's not working out of box. My volumes are deployed in the same location where the controller is running...

[bascht]

Same here – running 1.14 and the version from master @ https://raw.githubusercontent.com/hetznercloud/csi-driver/master/deploy/kubernetes/hcloud-csi.yml and all volumes are deployed in the same location as the controller like in @deacix case.

@thcyron is there a way to debug this or supply any helpful information?

[thcyron]

To check if topology awareness is working:

1. Create a pod and schedule it on a node in a specific location
2. Create and attach a volume to that pod
3. Verify that the volume has been created in that location

Do this for every location you have nodes in. If pod creation failed, please provide the error messages.

[bascht]

@thcyron Alright – I think I'm onto something. See #42. 😄