Installing pgAdmin4 Web on CentOS 7

I have had problem previously installing pgAdmin4 on CentOS 7, so I wanted to document my steps this most recent time.

Step 1: Install Packages

Install yum repo, you can the correct one at https://yum.postgresql.org/:

yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-7-x86_64/pgdg-centos96-9.6-3.noarch.rpm

Install the actual packages:

yum install pgadmin4-web

Step 2: Create system user

The packages do not create a user to run the web application now, so take some time to do so now:

useradd --create-home --home-dir /var/pgadmin --system --shell /sbin/nologin pgadmin

Step 3: Run setup.py

It’s necessary to run setup.py to create the appropriate environement under the system user’s HOMEDIR:

su –shell /bin/sh -c “python /usr/lib/python2.7/site-packages/pgadmin4-web/setup.py” pgadmin

Step 4: Configure Apache HttpD

<VirtualHost *>
	ServerName pgadmin.example.com

	CustomLog "logs/pgadmin-access_log" combined
	ErrorLog "logs/pgadmin-error_log"
	LogLevel error
	
	WSGIDaemonProcess pgadmin processes=1 threads=25 user=pgadmin group=pgadmin
	WSGIScriptAlias / /usr/lib/python2.7/site-packages/pgadmin4-web/pgAdmin4.wsgi

	<Directory /usr/lib/python2.7/site-packages/pgadmin4-web>
		WSGIProcessGroup pgadmin
		WSGIApplicationGroup %{GLOBAL}
		Require all granted
	</Directory>
</VirtualHost>