Users with Service Administrator roles should be able to create Alerts in ambari

curl -u TestUser:admin -i -H 'X-Requested-By:ambari' -X POST -d @alertsjson.txt http://test1:8080/api/v1/clusters/test1/alert_definitions
HTTP/1.1 100 Continue
HTTP/1.1 403 Forbidden
X-Frame-Options: DENY
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Cache-Control: no-store
Pragma: no-cache
Set-Cookie: AMBARISESSIONID=9g1ieqg3rijo1tuclt3dxkedl;Path=/;HttpOnly
Expires: Thu, 01 Jan 1970 00:00:00 GMT
User: TestUser
Content-Type: text/plain
Content-Length: 109
{
 "status" : 403,
 "message" : "The authenticated user is not authorized to manage cluster-level alerts"
}