DevOps

JENKINS add and configure Slack notifications

Hi team, If you wonder how to improve your team work efficiently during your Jenkins projects here is a good solution: configure slack notifications,what is slack notification?how can we configure for our Jenkins builds? Below we will see(…)

Starting with Simple Ansible Playbooks

Creating simple ansible playbooks(…)

Maven: Could not find or load main class org.codehaus.plexus.classworlds.launcher.Launcher

Working on Jenkins and Artifactory I often seen options suggesting Maven tool,but what is Maven purpose?How can we use and install it on a Windows system?During this install you may encounter some kind of issues Introduction Maven is a tool(…)

JENKINS : Update manually your Jenkins master

Hi there, What about keeping up to date your Jenkins 🙂 Such easy to perform that!Today we will check the manual update of our Jenkins master Check if updates are available You can see that(…)

Ansible Basics Workshop day @dbi services

Today, I follow our Workshop Ansible Basics with Jérôme Witt. Why I follow this workshop? First, it’s to have the basics and Best Practices before begin myself and do “bricolage” by my customers.

Clone a Terabyte Database in Seconds

Introduction Have you ever cloned a database using RMAN? Have you ever gotten the advice not to clone during daytime to avoid performance downgrade on the entire storage or network? For a proof of concept, we wanted to(…)

Automating Linux patching with Ansible

Since the beginning of the year, several vulnerabilities have been discovered in the Linux Kernel as well as in others important and widely-used packages. Among them, there was the famous CVE-2021-3156 affecting the sudo package and allowing(…)

Deploying a Kubernetes cluster on EC2 with Rancher

Once Rancher is up and running, it makes the deployment and management of Kubernetes clusters quite easy. In this post we'll deploy a brand new cluster on top of EC2. If you want to have a simple(…)

Rancher on SLES 15 as a demo environment

If you followed the last posts (Rancher, up and running, on EC2 – 1 – One node, Rancher, up and running, on EC2 – 2 – Three nodes and Rancher,(…)

Rancher, up and running, on EC2 – 3 – Rancher setup

The is the next post in this little Rancher series. After we installed a single node RKE cluster and extended this configurtation to three nodes we will finally install Rancher in this post.