Articles about software development operations

In this page, you will find articles that are related to computer infrastructure operations that are performed in the course of software development.

Examples include how to setup the server infrastructure to run Python applications, WordPress applications and etc.

How to associate a virtual environment with a Python project in PyCharm

When it comes to Python development, PyCharm is my favourite IDE.

Before working on a new Python project, I like to create a virtual environment and associate it with the corresponding PyCharm project. In case you like this mode of operation, this is how you can associate a virtual environment with a Python project in PyCharm.

How to setup Python Imaging Library, Pillow, on Raspbian Stretch Lite for processing images on your Raspberry Pi

When you are building a Raspberry Pi project that deals with images, the Python Imaging Library, Pillow can be very useful. For example, if you connect a camera to your Raspberry Pi 2 or 3 and took a picture, you may want to resize the picture before sending it to a server endpoint.

In case you have trouble setting up Pillow on Raspbian Stretch Lite, this post is for your reference.

Configuring Nginx and PHP 7 stack in Linux to increase or decrease file upload size limit

PHP web applications can utilize Nginx as the reverse proxy server and PHP FPM as the upstream server. Whenever you encounter HTTP file upload issues, limitation in file upload size is one common cause.

This post shows how to adjust the file upload size limit for your application running on a Nginx-PHP stack in Linux.

How to setup your own Wiki site on a Raspberry Pi 3 with Dokuwiki, Raspbian Stretch Lite, Nginx and PHP

Dokuwiki and Raspbian icon

As a result of the proliferation of single-board computers like the Raspberry Pi 3, we get energy-efficient computers. In addition to being energy-efficient, Raspberry Pi 3 is small and priced affordably. Therefore, the Raspberry Pi 3 is an ideal gift for programmers.

Given that you had received one as a programmer, you may be wondering what you can do with it. In case you are yearning for your own Wiki site, you may consider setting up your DokuWiki site on your Raspberry Pi 3.

With this in mind, this post walks through how you can setup your own Wiki site on a Raspberry Pi 3 with Raspbian Stretch Lite, nginx and PHP.

How to setup Jupyter Notebook on Raspberry Pi 3 with Raspbian Stretch Lite, Supervisor and Virtualenv to run Python 3 codes

By taking Andrew Ng’s Deep Learning Coursera course, you can get a better understanding of deep learning. In addition, you will also get many Jupyter Notebook documents that you can reference to build models that can solve interesting problems.

In order to readily access these documents, you may want to setup Jupyter Notebook on a single board computer like the Raspberry Pi 3. With this in mind, this post shows how you can setup Jupyter Notebook on Raspberry Pi 3 with Raspbian Stretch Lite, Supervisor and Virtualenv to run Python 3 codes.

How to setup Taiga project management platform on Raspberry Pi 3 with Raspbian Stretch Lite

Taiga and Raspbian icon

A project management platform is useful for us to keep tabs on what we want to build. Taiga is a popular open source project management platform that is highly recommended by opensource.com to be the top open source alternative to Trello.

Taiga runs well on a Raspberry Pi 3. If you want to setup something at home to help you manage the projects that you are working on, you can consider setting up the Taiga project management platform on a Raspberry Pi 3 with Raspbian Stretch Lite as the base operating system.

This post is adapted from Taiga’s installation guide to serve as a guide to setting up Taiga project management platform on Raspberry Pi 3 with Raspbian Stretch Lite.

How to install Postfix as the SMTP server for applications in Raspbian Stretch Lite to send email

Postfix Raspbian icon

Email is a good medium for the applications that we deploy on our Raspbian Stretch Lite to send us notifications.

By default, a fresh installation of Raspbian Stretch Lite does not include a SMTP server for programs to send email. Thankfully, we can install Postfix as the SMTP server for the applications that we deployed on Raspbian Stretch Lite to send out email when necessary.

This post documents how you can install Postfix as the SMTP server for applications in Raspbian Stretch Lite to send email.

Set of configurations to perform on the first run of your Raspbian Stretch Lite

After you had setup Raspbian Stretch Lite on your microSD card with SSH server enabled or setup Raspbian Stretch Lite with remote configuration over WiFi on first boot, there are a couple of configurations that you should perform for your Raspbian Stretch Lite.

This post walks through some of the configurations that you may want to perform on the first run of your Raspbian Stretch Lite.

How to setup Raspbian Stretch Lite with SSH server enabled on your microSD card

The first step of starting a Raspberry Pi project is to setup a operating system of your choice on the microSD card for managing your Raspberry Pi hardware and software resources, as well as, providing the common services for the computer programs that you are going to run.

The Raspbian Stretch Lite operating system is a light-weight and well supported operating system for Raspberry Pi. Therefore, it is one operating system that you might want to consider as the operating system for your next Raspberry Pi project.

This post serves as a guide to setting up Raspbian Stretch Lite on your microSD card with SSH server enabled.