create encrypted volume error

[李学海]

when https is enabled in the environment, create encrypted volume error.
# openstack volume type list
+--------------------------------------+-------------+-----------+
| ID | Name | Is Public |
+--------------------------------------+-------------+-----------+
| 69d0611e-8cdb-49a1-8191-c3a4fa793f0e | LUKS | True |
| 2486dd6e-5048-475a-b896-a826cd04e10a | __DEFAULT__ | True |
+--------------------------------------+-------------+-----------+
# openstack volume create --size 1 --type 69d0611e-8cdb-49a1-8191-c3a4fa793f0e 'encrypted volume'

The server has either erred or is incapable of performing the requested operation. (HTTP 500) (Request-ID: req-5ad373c6-c768-4dd3-9edd-d71830bc5f09)