A Beginner’s Guide to Chef on CentOS 8

Reading Time: 4 minutes

What is Chef?

Chef.logo

Chef is an open-source configuration management DevOps tool used for configuration and management of multiple systems in infrastructure. Using Chef, we can use so-called recipes and cookbooks to automate and speed up managing multiple systems in our environment. By using Chef, we can adjust every system in our environment to our desired state, which we defined using the code in recipes. In the process, code is continuously tested and deployed using Chef.

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How to Install Jenkins on Ubuntu 20.04

Reading Time: 7 minutes

By mfitzgerald

31920.jenkins

Introduction

In this tutorial, we are going to examine Jenkins and what its purpose is. We will begin by installing it on an Ubuntu 20.04 server and then start the software, enable the service, configure it, and finally, create a user with administrative privileges.

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How to Install Jenkins on CentOS 8

Reading Time: 6 minutes

What is Jenkins?

Jenkins is an open-source software written in Java and Scala. This software allows users the ability to automate almost any task and, it saves significant time that can be better utilized addressing other issues. When automating tasks with Jenkins, users can optimize their workflow by quickly automating the jobs that servers cannot do themselves. In this tutorial, we will learn how to install Jenkins on CentOS 8. We will also explore what its purpose is and share several benefits that Jenkins offers. We will then configure it to run on our CentOS 8 server.

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What is Infrastructure as Code? (IaC)

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Introduction: What is IaC?

Today we will become acquainted with a concept known as Infrastructure as Code. The idea of Infrastructure as Code is becoming more and more popular today. IaC is a method used to manage and provision a data center via defined machine-readable files instead of physical hardware configuration or other interactive configuration tools. This article will share what it is used for, why it is important, and why businesses strive to utilize this platform to achieve a desired set of results. It is essential to understand that we will consider both the theoretical and practical parts of IaC.

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How to Install lsyncd on Ubuntu 20.04 LTS

Reading Time: 4 minutes

What is lsyncd?

lsyncd is a rsync-based tool that monitors specified directories (including subdirectories) for updates and modifications, and then syncs those changes to a specified destination. It is a lightweight command application that is easy to install and configure using the popular Lua language.

It’s extremely useful in tracking data modification within a configured directory, and if changes are seen, it syncs the data between the directories which are frequently updated with new contents. By default, it is rsync only.

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DevOps: A New Perspective on Shared Automation

Reading Time: 9 minutes

What is DevOps?

DevOps is a set of various tools, practices, and ideals that combine software development (Dev) and IT Operations (Ops) into a single unifying force. It allows for better collaboration between developers, operations teams, system administrators, and system engineers. Their streamlined goal is to continually provide a high-value software product to the customer at high speed while monitoring and improving the overall process than using traditional software and infrastructure management. 

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How to Install and Configure Chef on Ubuntu 18.04

Reading Time: 10 minutes

Introduction

In this article, we will be reviewing the Chef software, how it works, and why it is useful. We will also explore how it is helpful in DevOps. And then, we will install Chef on Ubuntu 18.04. 

What is Chef? 

31920.chef.logo

Chef is a configuration management system written in Ruby and Erlang using the object-oriented language for configurations description. It is used to ease the task of configuring and maintaining multiple servers. It can be integrated into cloud platforms, such as the new Liquid Web Managed Cloud and VMWare platforms to manage the server’s configuration processes. 

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What is Configuration Management?

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Config.mgmt3

Configuration management is the process by which a company or organization defines and tracks the state of its infrastructural resources. Encapsulated in those resources are both physical hardware and software. It is a means to ensure that when changes are made to a system, those changes are tracked, geared toward the ultimate predefined criteria of what state should be.

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What is Puppet and What Role Does it Play in DevOps?

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What is Puppet?

puppet-labs-logo

Puppet is a cross-platform client-server based application used for configuration management. It handles the software and its configurations on multiple servers. There are two versions available. One is open-source, the other is a commercial version. It works on both Linux and Windows platforms. It uses a declarative approach to automate updates, installations, and other tasks. This feature allows the software to configure those systems using files called manifests. A manifest contains the instructions for a group or type of server(s) being controlled. 

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What is Cloud Automation?

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What is Cloud Automation?

Cloud automation is a blanket term that is often used to denote specialized software, tools, and operations that help us reduce the manual effort when it comes to deploying and maintaining cloud-based IT infrastructure. Simply put, it is automating tasks programmatically.

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