Allow using Immediate volume binding mode

[ctron]

Right now the volume binding mode is hard-coded to WaitForFirstConsumer:

kind/pkg/build/nodeimage/const_storage.go

Line 143 in 7c2f6c1

volumeBindingMode: WaitForFirstConsumer

Having that configurable would have provided a workaround for helm/helm#10733

[BenTheElder]

You could edit the config of the running deployment, I don't think it makes sense to add another knob here, we should just have a reasonable default.

the default storage driver of clusters is typically not configurable and on the other hand does not have to be used

[BenTheElder]

The value currently there came from the driver's upstream standard config at the time

[BenTheElder]

I'm don't think that this toy driver can operate except in this mode, due to the way it "provisions" "volumes".

https://github.com/rancher/local-path-provisioner

[ctron]

You could edit the config of the running deployment, I don't think it makes sense to add another knob here, we should just have a reasonable default.

Unfortunately that's not possible as the value is considered "immutable".

[BenTheElder]

It's not possible with an apply but you can get, modify, delete, recreate.

but again, I'm doubtful that this mode even works due to how the PVs are implemented.
It's also not configurable in the upstream chart.