What is Packer ? Packer is a great tool developped by Hashicorp. It does not need other tools from Hashicorp to operate and allows you to create images.This can be images used in the cloud or on on-premises infrastructures such a VMWare. In this article we will see together how to create an image on …
Introduction An agent based monitoring tool I really like to use is CheckMK ! It’s is a software developed in Python and C++ for IT Infrastructure monitoring. It is used for the monitoring of servers, applications, networks, cloud infrastructures (public, private, hybrid), containers, storage, databases and environment sensors. It’s easy to use and you has a lot of features. Checkmk components Let’s begin by having our definitions straights : Editions comparison There …
Introduction In this article, we will see together different basic concepts about Software Testing. There are different goals around it. The first one is obviously to search for defects than can be fixed to improve software quality. Then to validate that the software meets its purpose and finally facilitate refactoring and upgrades by validating that everything is still working after. As seen …
Introduction In this lecture, we will discuss Jenkin, a free and open source automation server which helps automate the parts of software development related to building, testing, and deploying, facilitating continuous integration and continuous delivery. It is free and entirely written in Java. This product is a widely used application around the world that has around 300k installations and growing day by day. Finally, it is …
Puppet Components In the previous article we have seen Puppet basic. Now let’s discuss about Puppet Components : Puppet Commands Here are some useful Puppet commands in order to run our following example : # Display puppet help man page $ puppet help |more # Find a resource $ puppet resource –types | grep -i …
Introduction Puppet is one of the oldest IT automation tool based on Ruby. It’s used to configure, manage, deploy and orchestrate various applications accross your infrastructure. Puppet comes with multiple built-in resources types (Puppet resources), that can perform almost any IT-driven automation task. There are two deployment model : Puppet supports various OS like RedHat, …
Create a repository From scratch From existing repo Observe my repository Files changes in working dir Changes made to track files History of changes Show a commit All local branches Update Pull latest changes (fetch + merge) Fetch latest changes (does not merge) Publish Stages file Commit all local changes Push changes to origin Revert …
Introduction – What is GIT ? Git is a free and open source version control system. Unlike older centralized version control systems such as SVN and CVS, Git is distributed : every developer has the full history of their code repository locally. Git also has excellent support for branching, merging, and rewriting repository history, which has …
Introduction DevOps engineers must be comfortable with Linux but also with softwares and programming languages like Python, NodeJS and Java. It’s important to understand how applications are built, deployed and how to troubleshoot, in order to be able to setup CI/CD. In this article, we will see together 3 of the most used programming languages used. Java …
What is Jira ? Jira Software is a great tool for agile project and software development. Indeed, it suits all phases of the project, from the creation of the initial concept to the launch and supports Scrum and Kanban methods. You can plan, record, coordinate and monitor problems, distribute tasks, prioritize requirements and manage theirs …