Hybrid cloud blog

September 1, 2022

Securing Ingress Controllers on a Managed OpenShift Cluster using Red Hat Advanced Cluster Management

Overview Being able to dynamically secure the Ingress controller of a newly provisioned managed OpenShift cluster without administrative login is possible to achieve by leveraging Red Hat Advanced ...

Jeroen Wilms and Christian Stark

August 31, 2022

Designing Golden Paths

Introduction Golden Paths are a fundamental ingredient of well architected Internal Developer Platforms (IDP). Spotify uses the term “Golden Path”, but that concept has other monikers. For example ...

Raffaele Spazzoli

August 26, 2022

Backup and Restore of Virtual Machines within OpenShift

Linus Torvalds once wrote, "Only wimps use tape backup: real men just upload their important stuff on ftp, and let the rest of the world mirror it." This quote has not aged well for a number of ...

Chandler Wilkerson

August 26, 2022

A Guide to using Gitops and ArgoCD with RBAC

Introduction One of the first questions I am asked when setting up OpenShift-Gitops (based on ArgoCD) are: "How do I use it for automatic onboarding of new projects and how can I limit access to the ...

Thomas Jungbauer

August 26, 2022

Delivering High-Accuracy Clock Synchronization for 5G Networks with OpenShift - Part 2

Hardware-supported PTP can be configured in OpenShift using the Red Hat PTP Operator. This operator enables us to synchronize computer clocks, using hardware timestamps, over a network with ...

Leonardo Ochoa Aday and Carlos Cardeñosa

August 25, 2022

Identity configuration management for Kubernetes and OpenID Connect Authentication (OIDC)

Introduction Identity configuration management for Kubernetes enhances the capabilities of Red Hat Advanced Cluster Management for Kubernetes (RHACM) or the multicluster engine for Kubernetes by ...

Chris Ahl

August 24, 2022

containerd Support for Windows Containers in OpenShift

Windows Machine Config Operator (WMCO) 6.0.0 available on OpenShift 4.11 will move from Windows Server configured with Docker runtime to Windows Server configured with containerd runtime. You can ...

Aravindh Puthiyaparambil and Anandnatraj Chandramohan

August 24, 2022

How to Improve Cluster Stability in Different Latency Environments Using Worker Latency Profiles for OpenShift

OpenShift ships with default reaction time for events, for example in case there is an increase in network latency between control plane and worker node. Kube controller manager will wait 40s by ...

Gaurav Singh and Harshal Patil

August 23, 2022

Mirroring OpenShift Registries: The Easy Way

OpenShift makes it easy to manage Kubernetes clusters that have unfettered internet access using well-known registries. However, preparation for deployment and maintenance of clusters reliant on ...

Ben Schmaus and Daniel Messer

August 23, 2022

How to Enable a Customized VPA Recommender on OpenShift

Today, the current Vertical Pod Autoscaler (VPA) recommends CPU/Memory requests based on one default recommender, which recommends future requests based on the statistics of historical usage observed ...

Chen Wang and Gaurav Singh

August 19, 2022

Custom Metrics Autoscaler on OpenShift

Overview Introduction When talking about modern workloads deployed on platforms like OpenShift, at some point we inevitably will need to discuss autoscaling. Why? Workloads should be able to flexibly ...

Zbynek Roubalik

August 16, 2022

Red Hat OpenShift and Nutanix

This post was written with the help of Andy Daniel at Nutanix Red Hat OpenShift on Nutanix AOS with AHV Starting with the Red Hat OpenShift 4.11 release, we are extending the infrastructure provider ...

Marcos Entenza