It was found that default configuration for nagios on Fedora is administrative account with user "nagiosadmin" with fixed password "nagiosadmin" and no IP based access restriction. This information is missing in packaged README file. Original report: https://bugzilla.redhat.com/show_bug.cgi?id=1295155
packstack,opm and director all set the password via automation, only direct package installation will contain default credentials included in the package
supported RHOSP installation methods are unaffected, set wontfix on products and closing trackers