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Writing Modules in Python 3: A Tutorial

Introduction Python is one of the most commonly used programming languages across the world. Modules are a critical part of the Python code. A module is simply a .py file in the context of Python 3. This means that you can refer to any Python file as a module. It is possible for you to obtain these modules through the …

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Installing Go on Ubuntu 20.04

Go is an open-source programming language. Originally designed at Google, Go shares syntax similarities with C. However, it includes additional programming features like structural typing, garbage collection, memory safety, and CSP-style concurrency. Most of the time, the Go programming language is referred to as “Golang” because of the official Go domain name. This guide demonstrates installing and configuring the latest …

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Python 3 Tutorial: Indexing and Slicing Strings

Introduction Python is one of the most popular programming languages across the world. It uses a data type that comprises sequences made up of individual characters. These characters may be letters, numbers, symbols, or whitespace characters. Other types of sequence-based data types include lists and tuples. Just like them, you can also access, index, and slice strings in Python. In …

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How to Host a Docker Image Repository and Build Docker Images with GitLab Self-Managed Instance on Ubuntu 20.04

Containerization technology has greatly advanced in the software development tech space as the most accepted method of packaging and deploying applications in cloud environments. This has been necessitated by the need for continuous integration (CI) and continuous deployment (CD) which are defining aspects of DevOps. Software developers and engineers make use of containers to achieve the CI/CD aspect of software …

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How to Use an Elastic Standalone Container to Host WordPress with CloudSigma PaaS

In this tutorial, we will be discussing how you can install WordPress inside a standalone elastic container in order to make the solution even more cost-effective and lightweight than it already is. The WordPress Standalone package can be installed very easily through the CloudSigma PaaS platform. This means that with a single click, you can supplement your small and medium-sized …

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Using *args and **kwargs Parameters in your Code: a Python 3 Tutorial

Introduction Python is one of the most popular programming languages worldwide. In Python, parameters are a part of function definitions. They enable you to specify certain arguments for a function. The argument can be accepted and applied by the function. However, it is not possible for you to know at the time of coding what exact use cases may be …

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Installing Ruby on Rails with RVM on Ubuntu 20.04

Ruby on Rails is one of the most popular web app frameworks. It’s open-source software designed for developers to create successful projects while writing fewer codes. Having a fun and enjoyable development experience is one of the fundamental principles that make Ruby on Rails an attractive choice. The RVM (Ruby Version Manager) tool, as the name suggests, is a third-party …

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Setting up Replication in MySQL on Ubuntu

MySQL replication is an interesting feature that allows users to manage multiple copies of one or more MySQL databases. The data is copied automatically from source to replica databases. It can be useful in numerous situations, such as working with the data without compromising the main database, data backup, or scaling the database access, etc. In this guide, we will …

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Creating a Sudo-Enabled User on CentOS 8

Introduction If you are working with CentOS 8, you should know what are the critical commands to use with it. One of these is the sudo command. This command is very useful for creating new users. With the sudo command, you can grant certain users special administrative privileges. Typically, these privileges are only accessible to the root user. If you …

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How to Migrate a Website from WordPress to CloudSigma PaaS

Most websites on the internet today are created using WordPress. However, using a PaaS environment like the one provided by CloudSigma offers a lot of additional functionality. In this tutorial, we will demonstrate how you can easily migrate a WordPress website over to CloudSigma PaaS.  There are several pre-configured WordPress packages in the CloudSigma Marketplace that you can use for …

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How To Set Up GitLab Continuous Integration (CI) Pipelines on Ubuntu 20.04

Every developer understands how crucial version control is to the software development lifecycle. It enables multiple people to work simultaneously on a single project, each person maintaining their own copy of the code and choosing when to share it with the rest of the team. To achieve this, developers make use of Git repositories to help with version control. GitLab …

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Using Asynchronous Primary-Secondary Replication by PostgreSQL for Auto-Clustering

Data is arguably the most important component of any website or application. If you are the owner of a website or an app, you must ensure that you are able to provide your users with adequate data security, accessibility, and availability within a dynamically changing environment. One of the ways to do this is to use multiple servers working in …