Hi, The SG functionality does not work on new 4.14 installations on CentOS7.The sg python scripts call python3, but no python3 libvirt bindings installed by default (only python2).
Fixed it in the centos7 rpm spec here, python36-libvirt from EPEL is required.
https://github.com/apache/cloudstack/pull/4124/commits/aa984f5ea7508f9c3154a712fb617f0fabc8c7e1 HTH
