Fix share server info in CGs created from CGs

Currently when a POST request is made to /consistency-groups
with a source cg-snapshot, the API does not register the share
network information (share_server_id and share_network_id) in
the database row newly created for the CG being created.

This information is essential to any shares that are being created
along with the consistency group.

- Disallow providing a share_network_id when using a source cg_snapshot_id
- Copy share network information from the parent CG
- Fix the share_server_id that was incorrect in the API response

 APIImpact

 Closes-Bug: #1571594
 Closes-Bug: #1572742

Change-Id: I1c3581c81e0b845f46eef3cd0acddb55850447a5
5 files changed
tree: 56a0e5d4d9903e62efcd462e0fb39f7b05e7c4cb
  1. manila_tempest_tests/