DevOps and Development

Helm charts are used to collect and package Kubernetes resources into simple and efficient clusters.
In this tutorial, learn how you can incorporate environment variables into your Kubernetes apps by using Helm charts.

Helm releases get updated and so do the values. Each change of Helm values is tracked. Learn how to get Helm values for a Helm release in this tutorial, how to find a specific revision version and the possible output formats.

Helm is a package manager for Kubernetes that offers a host of useful options, including rolling back your deployment to a previous release.
This tutorial offers a step-by-step guide to performing a rollback with Helm.

The sleep command is used when it is necessary to postpone the execution of commands on the command line or in shell scripts. This tutorial lists ways in which you can utilize the sleep command and provides examples for each use case.

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.

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.

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.