pgAdmin is an open-source software project for administrating and managing PostgreSQL database server that includes a graphical administration interface, an SQL query tool, and a procedural code debugger. This guide explains how to install pgAdmin 4 on FreeBSD 12.2.
Deploy a Vultr FreeBSD 12.2 Server.
Create non-root sudo user.
Access the PostgreSQL instance.
$ sudo su - postgres
Modify the default user postgres password.
psql -c "alter user postgres with password 'yourPassword'"
Create user pgadmin.
createuser pgadmin
Create a testdb database owned by user pgadmin.
createdb testdb -O pgadmin
Exit the PostgreSQL instance
exit
Create a symbolic link of Python3.8 binary to /usr/local/bin/python.
$ sudo ln -s /usr/local/bin/python3.8 /usr/local/bin/python
Install and upgrade pip, which is a package manager for Python.
$ sudo pkg install py38-pip
$ sudo pip install --upgrade pip
Install the virtualenv package, which is used to create isolated Python environments.
$ sudo pkg install py38-virtualenv
Create a virtual environment for pgAdmin.
$ virtualenv pgadmin4
Activate the Virtual environment.
$ . pgadmin4/bin/activate
Install Python dependencies.
$ sudo pip install cryptography==3.1.1 pyopenssl ndg-httpsclient pyasn1 simple-websocket
Install Python SQLite3 package.
$ sudo pkg install py38-sqlite3
Download and install Python wheel package for pgAdmin. To get the latest version, go to pgAdmin wheel packages.
$ sudo pip install https://ftp.postgresql.org/pub/pgadmin/pgadmin4/v5.4/pip/pgadmin4-5.4-py3-none-any.whl
Create the data directories and give write permissions.
$ sudo mkdir -pv /var/lib/pgadmin
$ sudo chmod 770 /var/lib/pgadmin
$ sudo mkdir -pv /var/log/pgadmin
$ sudo chmod 770 /var/log/pgadmin
Install the nano editor.
$ sudo pkg install nano
Copy the pgAdmin configuration file.
$ sudo cp ./pgadmin4/lib/python3.8/site-packages/pgadmin4/config.py ./pgadmin4/lib/python3.8/site-packages/pgadmin4/config_local.py
Edit the configuration file.
$ sudo nano ./pgadmin4/lib/python3.8/site-packages/pgadmin4/config_local.py
Find the line DEFAULT_SERVER = '127.0.0.1' and change it to match the line below.
DEFAULT_SERVER = '0.0.0.0'
Save and exit the file.
Run pgAdmin 4.
$ sudo python pgadmin4/lib/python3.8/site-packages/pgadmin4/pgAdmin4.py
Enter your email address and password to create your pgAdmin administrator account.
Open your browser and navigate to your server's IP address at port 5050 to access the pgAdmin 4 user interface. Use the email address and password that you set in the previous step. For example:
http://192.0.2.11:5050
Go to the pgAdmin 4 web portal and click Add New Server.
You'll be prompted with a dialog box. Enter your preferred server name in the Name field.
Switch to the Connection tab and enter the required fields with the appropriate data.
Enter localhost under the Host name/address.
Leave Port value as 5432.
Enter testdb under Maintenance database.
Enter pgadmin under Username.
Enter the database password you chose in section 1.
Click Save to login to the server.
After a successful connection, choose your server in the upper left corner, then expand the arrows to access the testdb database.
You have installed pgAdmin 4 for PostgreSQL Server. You can now manage your database server via the dashboard.