DevOps and Development

RHEL is now free for small production workloads, up to 16 systems. Red Hat announced their newly modified no-cost RHEL program as a response to the growing dissatisfaction due to the switch to CentOS Stream.

In order to properly track your changes and push them to Git, you need to set a remote upstream branch. Learn about upstream branches and how to set them in this tutorial.

The Kubernetes command-line tool, kubectl, allows you to control Kubernetes by carrying out HTTP requests to the Kubernetes API. This reference guide provides a list of the most common kubectl commands, along with a handy, downloadable cheat sheet.

Ansible allows you to use a single control node to run a variety of tasks on remote hosts, including checking if specific files and folders exist. Learn how in this tutorial.

Helm is Kubernetes' equivalent to apt and yum. It is a package manager used for deploying applications, which are packaged as charts. This article explains how to add, update, and remove Helm chart repositories.

Ansible is a Code as Infrastructure solution for monitoring and managing remote hosts. This is done by using Ansible playbooks.
This tutorial shows you how to create and run Ansible playbooks.

Helm is a package manager for Kubernetes that simplifies deployment process. Follow this step-by-step tutorial to learn how to install Helm on Ubuntu, Mac and Windows.

CentOS 8 was released in 2019 and brought promising features to the popular Linux distro. Although it had an EOL scheduled for 2029, it was cut short with RHEL ending support of CentOS 8 in December 2021. Learn more about the sudden change and what to expect in the future.

A canary deployment is used to test out new features and upgrades, to see how they handle the production environment. You can monitor the canary behavior to make sure it can handle the needed requests. Once you are happy with the way it is handling requests, you can upgrade all the deployments to the newest version.

This article explains how to do a dry run of an Ansible playbook by using the built-in check mode feature. Ansible is an Infrastructure as Code tool that allows you to use a single control node to monitor and manage remote servers. It allows you to manage remote servers by creating playbooks, which contain lists of tasks for the remote servers to perform.