Description of problem:

[root@jbelka-vm2 ~]# engine-config -s VdsmSSLProtocol="Blablav1.9"
[root@jbelka-vm2 ~]# engine-config -g VdsmSSLProtocol
VdsmSSLProtocol: Blablav1.9 version: general

engine=# select * from vdc_options where option_name ilike '%vdsmsslprotocol%';
 option_id |   option_name   | option_value | version 
-----------+-----------------+--------------+---------
       255 | VdsmSSLProtocol | Blablav1.9   | general
(1 row)

rhevm-4.0.7.1-0.1.el7ev.noarch

engine-config should be strict enough to check most important inputs. we obviously do not have coded allowable values for some, just value type string :/

Version-Release number of selected component (if applicable):
rhevm-4.0.7.1-0.1.el7ev.noarch

How reproducible:
100%

Steps to Reproduce:
1. try to put whatever string into a option which accepts just known values
2. check what was saved
3.

Actual results:
we can put whatever into DB

Expected results:
be more strict, at least for most important values

Additional info: