Implement ListEvents Runtime Interface to Support Cross-Cluster Events

[ushabelgur]

Proposed Changes

• Add ListEvents implementation to volume provider
• Add event recorder store implementation

Fixes #563

[lukasfrank]

Since reconcileSnapshot influences the processing time of the image provisioning it would be great to add more context by writing events there.

[ushabelgur]

Since reconcileSnapshot influences the processing time of the image provisioning it would be great to add more context by writing events there.

Volume metadata is attached only with image, its not being propagated to snapshots currently. If i generate events for snapshot without this volume metadata information, it will not be useful in propagating event. Will try to check if i can populate this info in snapshot.

[lukasfrank]

Since reconcileSnapshot influences the processing time of the image provisioning it would be great to add more context by writing events there.

Volume metadata is attached only with image, its not being propagated to snapshots currently. If i generate events for snapshot without this volume metadata information, it will not be useful in propagating event. Will try to check if i can populate this info in snapshot.

Can't we say here, that the snapshot was not present and therefore we gonna create it. I think this is still useful information and we also have the image.