TechLabNews

MINDRAW Train with Greater Purpose

Tue, 14 Jul 2026 07:08:34 +0200

Understand before you accelerate

Training is about more than running farther.

MINDRAW connects what your body achieves with how your mind feels, helping you improve without getting lost in the data.

HomeCortex

Mon, 11 May 2026 07:08:34 +0200

🚀 Building HomeCortex: A Local-First Voice AI for Smart Homes and How I Got Back to My Engineering Roots

After years working on enterprise software, I wanted to get my hands dirty again. Not just to learn LLMs from the outside through APIs and abstractions but to understand them from the inside: how they run, how they’re optimized, how they actually behave at the edge.

𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐯𝟏.𝟑𝟔

Tue, 28 Apr 2026 07:08:34 +0200

🚀 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝐯𝟏.𝟑𝟔 “𝐇𝐚𝐫𝐮” 𝐢𝐬 𝐡𝐞𝐫𝐞 — 𝐫𝐞𝐥𝐞𝐚𝐬𝐞𝐝 𝐨𝐧 𝐀𝐩𝐫𝐢𝐥 𝟐𝟐, 𝟐𝟎𝟐𝟔.

ハル (Haru) a Japanese sound carrying the meanings of 春 (spring), 晴れ (clear skies), and 遥か (far-off horizons). A fitting name for a release that looks ahead, not behind. This release brings 70 enhancements ,18 graduating to Stable, 25 entering Beta, and 25 in Alpha contributed by 491 individuals across 106 companies. Kubernetes that’s not just a version bump. That’s a community.

Run a Full OpenStack Cloud on Your compute

Tue, 21 Apr 2026 07:08:34 +0200

Run a Full OpenStack Cloud on Your Mac — No Dedicated Server Required

For years, “trying OpenStack” meant either renting servers or fighting an all-in-one VM that barely fit on a laptop. I wanted something different: a realistic, production-like cloud lab running entirely on an Apple Silicon Mac — same APIs, same workflows, same Terraform code I’d use in production.

Deploying OpenShift Single Node (OKD)

Fri, 19 Sep 2025 07:08:34 +0200

🚀 Deploying OpenShift Single Node (OKD) on Oracle Cloud Infrastructure (OCI)

If you want to experiment with OpenShift in the cloud for testing or development purposes, the open-source distribution OKD is a great option.

𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝟏.𝟑𝟒 𝐢𝐬 𝐡𝐞𝐫𝐞!

Mon, 01 Sep 2025 09:08:34 +0200

🚀 𝐊𝐮𝐛𝐞𝐫𝐧𝐞𝐭𝐞𝐬 𝟏.𝟑𝟒 𝐢𝐬 𝐡𝐞𝐫𝐞! 😀

Released last week, with a new logo and no less than 58 enhancements (stable, beta, and alpha).

👉 One of the most anticipated features: per-container restart policies.

Deploying MySQL InnoDB ClusterSet Across Multiple Kubernetes Clusters with Cilium

Fri, 15 Aug 2025 09:08:34 +0200

🚀 Deploying MySQL InnoDB ClusterSet Across Multiple Kubernetes Clusters with Cilium

📘 Introduction

This project demonstrates how to deploy a MySQL InnoDB ClusterSet across two Kubernetes clusters interconnected using Cilium Cluster Mesh.

Kubernetes v1.34 Sneak Peek – Coming End of August 2025

Tue, 05 Aug 2025 09:08:34 +0200

I’m thrilled to share a first look at Kubernetes v1.34, slated for release on Wednesday, August 27, 2025 . This update comes with no removals or deprecations, yet it’s packed with impactful enhancements that will improve security, observability, performance, and developer workflows. Here are some highlights:

Kubernetes Test Platform with Kind and Cilium

Mon, 10 Mar 2025 09:08:34 +0200

This guide walks you through setting up a local Kubernetes cluster using Kind and Cilium for advanced networking and observability.

Deploy a MySQL InnoDB Cluster on Kubernetes

Mon, 28 Oct 2024 13:08:34 +0200

As cloud-native applications continue to dominate the tech landscape, deploying databases within Kubernetes has become increasingly prevalent. MySQL, particularly with its InnoDB storage engine, stands out as a reliable choice for managing data in Kubernetes environments. The benefits of using MySQL in Kubernetes are numerous:

SonarQube in CI/CD Workflows

Tue, 05 Dec 2023 13:08:34 +0200

In this tutorial, we will walk through the comprehensive process of deploying SonarQube and a Java application in an AWS EKS (Elastic Kubernetes Service) environment using the AWS Cloud Development Kit (AWS CDK) and AWS SDK for Golang. This setup will also integrate AWS CodeCommit, AWS CodeBuild, and SonarQube for efficient code analysis and production releases.

Deployment of SonarQube on AWS ECS Fargate

Tue, 10 Oct 2023 13:08:34 +0200

AWS Elastic Container Service (ECS) Fargate is a serverless compute engine designed for running containerized applications. It simplifies the deployment and management of containers without the need to provision or manage underlying infrastructure.

Kubernetes 1.27 : released

Mon, 13 Mar 2023 10:38:34 +0200

Kubernetes v1.27, the first version of 2023 is ready

It’s full of new things! Where to start ? This release consist of 60 enhancements. 18 of those enhancements are entering Alpha, 29 are graduating to Beta, and 13 are graduating to Stable.

Does Intel® Optane™ Persistent Memory Improve etcd Performance ?

Tue, 10 Jan 2023 13:08:34 +0200

Following different implementation of kubernetes cluster, I asked myself the question : is that the Persistent Memory Intel Optane would allow optimization of etcd and have a performance gain on Kubernetes clusters ?

SonarQube on AKS

Fri, 28 Oct 2022 10:38:34 +0200

The purpose of this tutorial is to create an AKS cluster (2 nodes) with Terraform. Azure Kubernetes Service (AKS) is a fully managed Kubernetes service by Azure.

Next we will deploy a database : PostgreSQL, SQL server developer edition or OracleXE and finally SonarQube (CE, DE or EE).

Kubernetes 1.25 : released

Wed, 24 Aug 2022 10:38:34 +0200

Kubernetes 1.25 is about to be released, and it’s full of new features! Where to start?

A new Logo 😀

This release brings 40 improvements, tied with the 46 in Kubernetes 1.24 and the 45 in Kubernetes 1.23. Of those 40 enhancements, 13 move to stable, 10 are existing features that continue to improve, 15 are completely new, and two are deprecated features.

Generate a certificate for Traefik Ingress Controller in Kubernetes

Tue, 17 May 2022 15:23:34 +0200

This post follows the previous one: Install Kubernetes Cert-Manager .

Prerequisites

Before you get started, you’ll need to have these things:

A kubernetes cluster
A DNS domanin name
Certmanager installed

Generate a certificate

When creating a new certificate, make sure you create one on a named namespace. It will be verified by cert-manager even if it exists on a different namespace since we are referring to a ClusterIssuer.

Install Kubernetes Cert-Manager

Tue, 17 May 2022 12:23:34 +0200

Using HTTPS to publish your website or expose your API is a must today. Fortunately, the days when you had to spend hundreds of dollars and time to create and manage a valid TLS / SSL certificate are long gone.

Raspberry Pi k8s Cluster

Fri, 13 May 2022 12:23:34 +0200

I built a bare-metal KUBERNETES CLUSTER on Raspberry Pi.

After building complex kubernetes cluster architectures for several customers, it’s been a while since I planned to build a cluster for myself as a hobby project, for fun and to host projects. And it’s done 😀

Podman and CRI-O

Sun, 24 Apr 2022 12:23:34 +0200

Podman and CRI-O, the new duo of containerization versus Docker ?

In today’s technology landscape, it’s common to hear Docker associated with containers, but there are other options.

These two open source projects are behind a revolution in the container world: the Docker replacement …..😢 And there, first surprise: why replace Docker ? 🤔 Although Docker Inc. has revived the container model. Docker is an all-in-one component, the docker binary contains instructions to build container images, what to run them and even what to set up a swarm cluster. And today it is a point of contention and SPOF because all containers depend on a single daemon.

Using GitHub webhook

Sun, 24 Apr 2022 12:23:34 +0200

Using GitHub webhook

GitHub is arguably the largest remote code hosting service in the world. It is also arguably the most used platform for developers around the world to work on personal and team code projects. One of the attributes that contribute to the widespread adoption of GitHub is the ability to integrate the platform into development workflows, OAuth applications, CI/CD processes and many other use cases.

Using HPE Ezmeral Data Fabric File Store Container Storage Provider Part 1

Sat, 15 Jan 2022 12:23:34 +0200

Installing PE Ezmeral Data Fabric File Store on AWS our infrastructure with Terraform and kubeadm

What is HPE Ezmeral Data Fabric File Store ?

HPE Ezmeral Data Fabric, part of the HPE Ezmeral software portfolio, uses innovative technology originally developed as the MapR Data Platform (MapR Technologies was acquired by HPE in 2019). As a unifying software technology, the HPE Ezmeral Data Fabric delivers highly scalable data storage, access, management and movement across your enterprise, from the edge to the cloud, all within the same security system and with superb reliability. HPE Ezmeral Data Fabric File Store is a distributed filesystem for data storage, data management, and data protection. File Store supports mounting and cluster access via NFS and FUSE-based POSIX clients (basic, platinum, or PACC) and also supports access and management via HDFS APIs. You can manage your clusters from the Managed Control System (web console) and monitor them using HPE Ezmeral Data Fabric Monitoring.

NuoDB Scale-Out, Continuous Availability

Tue, 02 Nov 2021 08:38:34 +0200

In my first NuoDB blog , I explained how to deploy the NuoDB database in a Kubernetes environment using OpenEBS storage. In this post we will test the OLTP performance capabilities of NuoDB and the Continuous Availability. for the SQL workload generator we will use YCSB in a pod,the Yahoo Cloud Serving Benchmark tool.

NuoDB Monitoring

Tue, 02 Nov 2021 06:38:34 +0200

In my first NuoDB blog , I explained how to deploy the NuoDB database in a Kubernetes environment using OpenEBS storage. In this post, we will learn how to install the monitoring part: NuoDB Insights

NuoDB Elastic Scalability

Mon, 01 Nov 2021 06:38:34 +0200

In this post, we will learn how to install a NuoDB Community Edition in kubernetes infrastructure using OpenEBS for storage

Introduction to NuoDB

Elastic Scalability is the capability of the database to provide amazing scale-out performance and scale-in cost savings on-demand.

Test Shelly H&T

Wed, 20 Oct 2021 15:38:34 +0200

A hygrometer and a thermometer that go into a ball !

I really appreciate Shelly products because I find them accurate, easy to use, not expensive and they integrate very well into a home automation solution such as Apple HomeKit or other…

Kubectl Unable to Connect Kubernetes remote access

Wed, 13 Oct 2021 12:23:34 +0200

Just set up a brand new cluster ?. Changed the domain or IP of your admin node ?

Then you may have encountered the error Unable to connect to the server: x509: certificate is valid for X.X.X.X.

Create a MinIO Server for S3-Compatible Object Hosting using Terraform

Sun, 10 Oct 2021 12:23:34 +0200

In this guide, we will learn how to install a MinIO server in Baremetal Infrastructure with Terraform in an AWS environment.

We are going to set up our own version of an Amazon S3-compatible storage service that can be configured to be accessible by multiple users. You can host your MinIO server on any host to which you have administrator access.

Using Volume Snapshot and Clone in Longhorn

Thu, 23 Sep 2021 15:38:34 +0200

After my previous post about Using HELM Chart to Deploying Longhorn to an Amazon Kubernetes Cluster using Terraform already up, I wanted to test Snapshot and Clone in Longhorn.

Using HELM Chart to Deploying Longhorn to an Amazon Kubernetes Cluster using Terraform

Wed, 22 Sep 2021 12:23:34 +0200

After having been interested in the pure kubernetes storage management part proposed by HPE : HPE Ezmeral Data Fabric (formerly MapR Data Platform) delivered with their large scale containerized application deployment and management tool : HPE Ezmeral Container Platform,as well as has OpenEBS which is a storage solution for Kubernetes , it is a broadly deployed open source storage platform that provides persistent and containerized block storage for DevOps and container environments on Kubernetes. OpenEBS adopts Container Attached Storage (CAS) approach. I wanted to test another Kubernetes storage solution of the same type as OpenEBS.

Deploy a Kubernetes cluster using Ansible in AWS

Fri, 10 Sep 2021 09:38:34 +0200

The purpose of this tutorial is to create 3 identical OpenSUSE Tumbleweed virtual machines in AWS that we will deploy only with Ansible. With the goal of using this infrastrucutre to deploy a kubernetes cluster .

Cost and performance benefits of deploying MySQL Comparing SSD vs. NVMe and Intel® Optane™ DC Persistent Memory

Mon, 30 Aug 2021 10:08:34 +0200

The Challenge for this test

Tested different IO configuration (SAS , SSD , PMEM) for Logs and redo log with a MySQL database workload and see the impact on the result.

Kubernetes 1.22 support SECCOMP for all workloads

Fri, 27 Aug 2021 11:00:34 +0200

Kubernetes v1.22.0 introduces a new kubelet feature gate SeccompDefault , which has been added in alpha state as every other new feature. Seccomp is a security mechanism that allows Linux processes to filter system calls (syscalls) based on a set of defined rules. Applying Seccomp profiles to containerized workloads is one of the key tasks when it comes to enforcing application deployment security.

Linux at 30 years old today !!!

Wed, 25 Aug 2021 09:38:34 +0200

Happy birthday Linux 🎂

A simple message from Linus Torvalds in 1991 gave the start of the creation of Linux. Reading the message sent by Linus Torvalds 29 years ago, it is hard to imagine that what was just a hobby would become one of the most important operating systems in the world. Since then, the open source project has evolved to become an essential part of IT, especially in the cloud. :

HPE CSI Driver for Kubernetes 2.0.0

Mon, 23 Aug 2021 15:38:34 +0200

HPE has re-released in June 2021 its CSI Driver 2.0 which now supports the following HPE storage:

Alletra OS 6000
Alletra OS 9000
Nimble OS
Primera
3PAR

The lineage of the HPE Alletra platforms stem from Nimble Storage for HPE Alletra 6000, and Primera for HPE Alletra 9000. This in turn warranted a name change of the respective CSPs, and the new CSPs are now backwards compatible with their respective legacy platform.

Kubernetes 1.22: Server Side Apply moves to GA

Sat, 07 Aug 2021 15:38:34 +0200

Server-side Apply is an important effort to migrate “kubectl apply” to the apiserver with a server-side implementation, permitting use by tools/clients other than kubectl.

Server-side Apply is a new merging algorithm, as well as tracking of field ownership, running on the Kubernetes api-server. Server-side Apply enables new features like conflict detection, so the system knows when two actors are trying to edit the same field.

kubernetes 1.22 New Logo

Fri, 06 Aug 2021 15:38:34 +0200

The release logo is our reminder to keep reaching for new milestones and setting new records. And it is dedicated to all the Release Team members, hikers, and stargazers!

Kubernetes 1.22 is available

Fri, 06 Aug 2021 12:38:34 +0200

This release consists of 53 enhancements: 13 enhancements have graduated to stable, 24 enhancements are moving to beta, and 16 enhancements are entering alpha. Also, three features have been deprecated.

Kubernetes 1.22 : Feature API

Thu, 15 Jul 2021 15:38:34 +0200

Kubernetes 1.22, due for release in August 2021, will remove a number of deprecated APIs.The v1.22 release will stop serving the all beta APIs.

The Kubernetes documentation covers these API removals for v1.22 and explains how each of those APIs change between beta and stable.

MySQL HeatWave: Single system for OLTP and OLAP

Wed, 26 May 2021 15:38:34 +0200

HeatWave is a new high-performance integrated analytics engine for the MySQL Database Service. HeatWave accelerates MySQL performance by 400 times for analytical queries, scales to thousands of cores.

Installing Kubernetes with CRI-O on bare-metal with Terraform and kubeadm

Sun, 02 May 2021 12:23:34 +0200

A few months ago Kubernetes announced the depreciation of Docker in the next version, in a previous post I explained why. Kubernetes is deprecating Docker in the upcoming release. .

Kubernetes is deprecating Docker in the upcoming release.

Fri, 30 Apr 2021 15:38:34 +0200

Kubernetes recently announced that it’s deprecating Docker as a container runtime after v1.20,in favor of runtimes that use the Container Runtime Interface(CRI) created for Kubernetes.

Kubernetes 1.21

Fri, 16 Apr 2021 15:38:34 +0200

kubernetes 1.21 has been released! Congratulations to the Kubernetes release team , the first release of 2021!

This latest release highlights the rapid pace of innovation and development by the Kubernetes community with a total of 51 enhancements: 13 enhancements have graduated to stable, 16 enhancements are moving to beta, 20 enhancements are entering alpha, and 2 features have been deprecated. Kubernetes 1.21

OpenEBS CStor CSI Driver

Wed, 14 Apr 2021 15:38:34 +0200

CSI driver implementation for OpenEBS CStor storage engine.

Container Storage Interface (CSI) is an initiative to unify the storage interface of Container Orchestrator Systems (COs) like Kubernetes, Mesos, Docker swarm, cloud foundry, etc…

Using Volume Snapshot and Clone of a cStor Volume in OpenEBS

Tue, 13 Apr 2021 15:38:34 +0200

After my previous post about Using HELM Chart to Deploying OpenEBS to an Kubernetes Cluster using Terraform already up, I wanted to test Snapshot and Clone of a cStor Volume in OpenEBS.

Using HELM Chart to Deploying OpenEBS to an Kubernetes Cluster using Terraform

Sun, 11 Apr 2021 15:38:34 +0200

Deploying Microsoft SQL Server 2019 Linux to an Kubernetes Cluster using Terraform

Sat, 10 Apr 2021 13:38:34 +0200

After my previous post about deploying a kubernetes cluster on RedHat Enterprise Linux instances already up, I wanted to deploy SQL Server on this existing kubernetes cluster with Terraform.

Installing Kubernetes on bare-metal with Terraform and kubeadm

Fri, 09 Apr 2021 12:23:34 +0200

Setting up a Kubernetes cluster with Terraform, kubeadm and Weave Net on RedHat Enterprise Linux bare-metal servers

This is a step by step guide on setting up Kubernetes on RedHat Enterprise Linux Server bare-metal environnement. The main reason I worked on this project is that i wanted to automate the deployment of kubernetes clusters on servers already pre-installed in RedHat Enterprise Linux Server® 7.x and 8.x for demo environments. Using Terraform provider along with kubeadm you can have a fully functional Kubernetes cluster in few minutes.

MySQL InnoDB Cluster on AWS using Kubernetes and StatefulSets

Sun, 14 Mar 2021 12:23:34 +0200

MySQL InnoDB Cluster on AWS using Kubernetes and StatefulSets

We will resume our infrastructure created in the previous post: Installing Kubernetes on AWS infrastructure with Terraform and kubeadm . We will add storage to each worker nodes and install OpenEBS on our kubernetes cluster.In this post I won’t detail the OpenEBS installation part, I strongly advise you to see the following posts:

Installing Kubernetes on AWS infrastructure with Terraform and kubeadm

Sat, 13 Mar 2021 12:23:34 +0200

Installing Kubernetes on AWS our infrastructure with Terraform and kubeadm

We will resume our infrastructure created in the previous post: Our first AWS infrastructure since Terraform and modify it to add the deployment of a kubernetes cluster on 4 nodes. To execute this tutorial you need to set up the infrastructure deployed in this previous post.

Our first AWS infrastructure since Terraform

Fri, 12 Mar 2021 12:23:34 +0200

Our first AWS infrastructure since Terraform

The purpose of this tutorial is to create 4 identical Suse Linux Enterprise 15.2 virtual machines in AWS that we will deploy only with Terraform. With the goal of using this infrastrucutre to deploy a kubernetes cluster .

Deploy MySQL instance on Amazon EKS cluster using Terraform

Wed, 10 Mar 2021 12:23:34 +0200

Deploy MySQL instance on Amazon EKS cluster

The purpose of this tutorial is a walk-through of the steps involved in deploying and managing a highly available MySQL database on Amazon EKS.

Create Amazon EKS cluster using Terraform

Mon, 08 Mar 2021 12:23:34 +0200

Create Amazon EKS cluster using Terraform

The purpose of this tutorial is to create an EKS cluster (3 nodes) with Terraform. Amazon Elastic Kubernetes Service (Amazon EKS) is a fully managed Kubernetes service by AWS.

Ezmeral Data Fabric Storage HA solution using CSI driver

Mon, 08 Feb 2021 15:38:34 +0200

Using HPE MapR Data Fabric Storage Container

About This Lab

Welcome to this Lab on HPE CSI Driver for Kubernetes with MapR Data Fabric Storage and SQL Server 2019 Lab.

About

Mon, 01 Jan 0001 00:00:00 +0000