Validation required: Cinder snapshot can be created with empty metadata key/value

[jybuestc]

Description:
Cinder snapshot can be created with empty metadata key/value. Missing validaion against key/value params

Project:
OpenStack

Project Area:
cinder

Release:
OpenStack

Severity:
S1

Full Details:
Cinder snapshot can be created with empty metadata key/value. Missing validaion against key/value params

stack@ubuntuasdfasd:~$ cinder snapshot-create ffe2a72d-cbb8-465c-b4cd-a97e16003695 --metadata " "=" "
+-------------+--------------------------------------+
| Property | Value |
+-------------+--------------------------------------+
| created_at | 2015-11-24T17:55:51.822875 |
| description | None |
| id | aa79f267-87ae-46e5-918b-a15995e5ad37 |
| metadata | {u' ': u' '} |
| name | None |
| size | 1 |
| status | creating |
| updated_at | None |
| volume_id | ffe2a72d-cbb8-465c-b4cd-a97e16003695 |
+-------------+--------------------------------------+