What’s a (D)DoS and how to protect against such an attack – non technical.

Introduction The topic “Denial of Service” (DoS) and “Distributed Denial of Service” (DDoS) is always a hot topic because it could happen at any time for any Service at any Level. To understand what a (D)DoS is, let us explain what a “Service” is, what possible attacks are available and why such a denial of […]

Kubernetes at the Edge: MicroShift on Raspberry Pi 4 using Fedora IoT

This guide will show you how to run the newly GA’ed bits of MicroShift on a Raspberry Pi 4 using Fedora IoT 38 or 39. It can announce routes via mDNS so hosting applications in an mDNS aware LAN is a breeze. THIS IS COMPLETELY UNSUPPORTED. DON’T EVEN THINK OF RED HAT SUPPORT WHEN YOU […]

Podman Desktop Integration with MicroShift in a RHEL Virtual Machine

This blog elaborates on how to configure Podman Desktop to be used together with MicroShift in a RHEL virtual machine (VM). Please note that the presented setup is not supported by Red Hat. 1. Introduction and use case One of the challenges in software development is a difference between development environment and target production. In […]

A personal AI assistant for developers that doesn’t phone home

tl;dr It’s no surprise that developers are looking for ways to include powerful new technologies like AI Assistants to improve their workflow and productivity. However, many companies are reluctant to allow such technology due to concerns about privacy, security and IP law. This article addresses the concerns about privacy and security and describes how to […]

Patterns II – The Approach

ˈpætɚns Image source https://vecteezy.com/ Recap In the first article, we discussed the need for patterns as an architectural paradigm, in order to achieve re-usability across complex environments such as Hybrid Cloud scenarios. We identified the benefits of a pattern based approach. We talked about automation, Hybrid Cloud, and about organizational aspects We’ve learned that patterns […]

Dynatrace & Red Hat – Unveiling the Automated Remediation Revolution

This blog elaborates on how to discover issues before they occur and have a quicker root cause detection.
React on exception right away in an automated fashion. And with that reduce operational costs and enable faster delivery and MTRS time.

Eclipse Che / OpenShift Dev Spaces – Podman With Fuse Overlay

In this post, I am going to show you how to enable faster Podman builds in Eclipse Che / OpenShift Dev Spaces by enabling support for /dev/fuse in your workspace. This will eliminate the need for using vfs with podman. It also gets us closer to being able to do podman run in a rootless […]

Securing CICD pipelines with StackRox and Sigstore

How can we ensure the security of our supply chain and verify that all container images deployed in our Kubernetes clusters are both signed and protected, preventing the deployment of malicious ones? What methods can we adopt to sign and verify container images within our CI/CD pipelines, thereby bolstering the security of our DevOps workflows? […]

The RHEL root trust store and why it matters for security

Photo by Robynne Hu on Unsplash In the perilous realm of digital security, trust is fragile. Transport Layer Security (TLS) web server authentication relies on trust anchors, but a flaw in the design puts web entities at risk of malicious impersonation. This article explores the origin of certificates in the RHEL root trust store and […]

What you always wanted to know about your etcd usage

In most Kubernetes installations, a well-maintained etcd is one of the key conditions for having a peaceful administrator life. Most Kubernetes distributions imply limitations on etcd and its size. For Openshift there’s a quota limit of 8GB. Typically that limitation should not hit you unless you run really large clusters and or utilize the cluster […]

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