Download

$ sudo mkdir /var/lib/pgadmin
$ sudo mkdir /var/log/pgadmin
$ sudo chown $USER /var/lib/pgadmin
$ sudo chown $USER /var/log/pgadmin
$ python3 -m venv pgadmin4
$ source pgadmin4/bin/activate
(pgadmin4) $ pip install pgadmin4
...
(pgadmin4) $ pgadmin4
NOTE: Configuring authentication for SERVER mode.

Enter the email address and password to use for the initial pgAdmin user account:

Email address: user@domain.com
Password: 
Retype password:
Starting pgAdmin 4. Please navigate to http://127.0.0.1:5050 in your browser.
 * Serving Flask app "pgadmin" (lazy loading)
 * Environment: production
   WARNING: Do not use the development server in a production environment.
   Use a production WSGI server instead.
 * Debug mode: off