Due to incorrect processing IP:port pairs using 'regex_replace' filter,
roles-test gate job fails. This patches fixes all the related errors and
CI gate check itself.
Change-Id: Ifd7f890166195df0af9b34e1ccff59b7abd2d9ab
Relates-To: #305
Closes: #305
Signed-off-by: Ruslan Aliev <raliev@mirantis.com>