Hi,
I wrote a short blog post about installing pgAdmin4 3.0 on RHEL/CentOS 7 and
Fedora 28
https://people.planetpostgresql.org/devrim/index.php?/archives/96-Installing-pgAdmin4-3.X-on-RHEL-CentOS-7-and-Fedora-27.html
Please note that I changed quite a few things in the packaging, so make sure
that you read these instructions before installing/upgrading.
Regards,
--
Devrim Gündüz
EnterpriseDB: https://www.enterprisedb.com
PostgreSQL Consultant, Red Hat Certified Engineer
Twitter: @DevrimGunduz , @DevrimGunduzTR