Abhishek Kumar 543c54c718
api,server,ui: snapshot copy, multi-zone replica (#7873)
This PR adds new functionality to copy snapshots across zones and take snapshots for multiple zones.

Copy functionality is similar to template copy. The source zone acts as the web server from where the destination zone(s) can download the snapshot files. For this purpose, a new API - `copySnapshot` has been added. The response for copySnapshot will be returning zone and download details from the first destination zone of the request. This behaviour is similar to the `copyTemplate` API.

In a similar manner, multiple zones can be selected while taking the snapshots or creating snapshot policies. For this snapshot will be taken in the base zone(in which volume is present) and then copied to the additional zones. A new parameter - `zoneids` has been added to `createSnapshot` and `createSnapshotPolicy` APIs.

As snapshots can be present on multiple zones (secondary stores), a new parameter `zoneid` has been added to delete the snapshot copy on a specific zone.

`listSnapshots` API has been updated to allow listing snapshot entries for different zones/datastores. New parameters - `showUnique`, `locationType` have been added.

Events generated during snapshot operations will now be linked to the snapshot itself rather than the volume of the snapshot.

`listSnapshotPolicies` and `createSnapshotPolicy` APIs will return zone details of the zones in which backup will be scheduled for the policy.

----
New API added
`copySnapshot`

Request and response params updated for APIs
```
- listSnapshots
- deleteSnapshot
- createTemplate
- listZones
- listSnapshotPolicies
- createSnapshotPolicy
```
UI updated for
- Snapshot detail view
- Create snapshot form
- Create snapshot policy form
- Create volume (from snapshot) form
- Create template (from snapshot) form

Doc PR: https://github.com/apache/cloudstack-documentation/pull/344
PR: https://github.com/apache/cloudstack/pull/7873
2023-10-23 09:01:58 +02:00
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