DevOps

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.

Rancher, up and running, on EC2 – 1 – One node

If you want to play with Rancher you have several options, as outlined in the documentation. There are quick starts for the major public cloud providers (using Terraform), you can install(…)

JENKINS installing Artifactory server and add it to your Jenkins master

Hi everybody As promised in my previous post on Artifactory plugin here is the installation guide to use Artifactory with your  Jenkins master.First we need to check the prerequisites and then after installation will see how to link it(…)

JENKINS installing Artifactory plugin and fix dependencies issue

Hi everybody As I planned to show you how to use Artifactory in next blog topic , we need to install it through plugin management. During this I faced some issues.Below we will check how to fix it. what(…)

JENKINS create a pipeline using Blue Ocean

Hi everybody, Last time we have seen what is Pipeline concepts including scripted and declarative pipeline methods.Today we will see how to create easily a declarative pipeline using Blue ocean tool.It will allow us to generate a workflow without(…)

JENKINS – Introduction to pipelines

Hi, We already know how to create a build on Jenkins using freestyle job, it’s a quick way to make a job, but what happened when we want to have complex tasks and workflow to trigger? Freestyle job limitation Indeed(…)