ArangoLocalStorage tasks

[ewoutp]

This issues tracks the tasks needed for the ArangoLocalStorage resource.

• api definition of ArangoLocalStorage
• CRD creation of ArangoLocalStorage
  • Move CRD creation to YAML
• controller for ArangoLocalStorage
• creation of StorageClass for ArangoLocalStorage
• marking StorageClass default (if specified) See Implemented isDefault behavior of storage class #35
• creation of DaemonSet for provisioners per node
• client library for talking to provisioners per node
• Informer listening to PVC changes, triggering PV creation if needed
• Informer listening to PV changes, triggering PV cleanup when needed
• Prevent creating PV's on node with lack of capacity
• Quota PV to avoid putting more data into it than its capacity allows (Quota PV to avoid putting more data into it than its capacity allows #193)
• Cleanup of released PV's
• Cleanup of unused PV's (unused for a longer time)
• API unit tests (pkg/apis/storage/v1alpha)
• provisioner unit tests (pkg/storage/provisioner/service)
• controller unit tests (pkg/storage)
• Improve namespace issues (PV's are cluster-wide, operator is deployed in specific namespace)

[ewoutp]

Closing in favor of individual issues