Alireza Gharib Blog

As cloud-native infrastructure evolves, managing Red Hat OpenShift clusters demands greater scalability and efficiency. Hosted control planes (HCP) represent a transformative approach in OpenShift, decoupling control planes and hosting them in lightweight, flexible pods. This innovation enhances resource utilization, multi-tenancy, and hybrid-cloud capabilities—key priorities for modern infrastructure. Learn more about Shift-On-Stack enhanced with hosted control…

Hosted control planes (HCP) is the name of the Red Hat product for the upstream HyperShift project. It allows you to deploy the control plane of a Red Hat OpenShift cluster into an OpenShift project instead of requiring dedicated (master) nodes and attach worker nodes managed via the nodePool API to it. Hosted control planes architecture has several advantages when…

It can’t be almost January yet. As the new year approaches, it’s time to reflect on the top learning paths Red Hat Developer published this year, along with highlighting key paths that were too new to make the list. No matter what kind of developer you are, it can be difficult enough to keep up with…

Since containers became hot, there are fewer scenarios where IT professionals have to deal with virtual machines (VMs) in their day jobs, but from time to time you need something that’s hard or impossible to replicate inside a container and virtualization tools remain a crucial part of a developer’s toolbox. Early container tools created huge…

As we close out the year, we’re rounding up the articles that resonated the most with our readers on Linux, Kubernetes and OpenShift, Ansible automation, programming languages and runtimes, and more.  Love it or hate it, artificial intelligence (AI) continued to gain momentum across industries in 2024. This enthusiasm was reflected on the blog this year,…

Network optimization with Data Plane Development Kit (DPDK) and Single Root Input/Output Virtualization (SR-IOV) is widely supported and adopted in Kubernetes and Red Hat OpenShift. In this article, we will present a means of automatically deploying an open source Cloud-Native Network Function (CNF), called Example-CNF, in order to test particular Telco-related configurations and scenarios, leveraging DPDK’s capabilities…

This article will show you how to automatically issue certificates using Identity Management in Red Hat Enterprise Linux (IdM) and cert-manager operator for OpenShift. Securing communications is a must, not only to protect the data but to provide greater data integrity as well. Applications achieve greater communications security using cryptographic certificates, but these certificates have their own…

The first installment in this series provided a brief introduction to the Cluster Observability Operator (COO). This article serves as a detailed guide for configuring alerts within the COO namespace. In the following sections, I will present specific examples for two structural configurations within the COO monitoring stack. Case 1: One monitoring stack for multiple…

Red Hat OpenShift Virtualization 4.17 is now generally available.OpenShift Virtualization lets you migrate your existing virtual machine (VM)-based workloads to Red Hat OpenShift, helping to streamline operations on a modern platform. You can take advantage of the speed and simplicity of a comprehensive application platform, while preserving your existing virtualization investments. Here’s some of what’s…

Devices on the network’s edge help organizations process data and transactions quickly on site, and can cut down on redundant network traffic and the latency that comes with it. There are challenges with managing so many devices and all the data they process, though, so edge computing is still changing and improving. Here are the…