apply base role to ns1
apply base role to ns1

* another option is to make 'dns' role depend on 'base'

djmitche/buildbot-infra,buildbot/buildbot-infra,ewongbb/buildbot-infra,buildbot/buildbot-infra,seankelly/buildbot-infra,seankelly/buildbot-infra,ewongbb/buildbot-infra,buildbot/buildbot-infra,djmitche/buildbot-infra,seankelly/buildbot-infra,djmitche/buildbot-infra