INFO:kolla.cmd.build:neutron-linuxbridge-agent:https://mirror.steadfast.net/epel/7/x86_64/repodata/608315c48704a4c9ef46c0e998db67c9154dc203899ce025073142573773d8bd-updateinfo.xml.bz2: [Errno 14] HTTPS Error 404 - Not Found
INFO:kolla.cmd.build:neutron-linuxbridge-agent:Trying other mirror.
INFO:kolla.cmd.build:neutron-linuxbridge-agent:To address this issue please refer to the below knowledge base article
INFO:kolla.cmd.build:neutron-linuxbridge-agent:https://access.redhat.com/articles/1320623
INFO:kolla.cmd.build:neutron-linuxbridge-agent:If above article doesn't help to resolve this issue please create a bug on https://bugs.centos.org/