Virtio-net failover is a virtualization technology that allows a virtual machine (VM) to switch from a Virtual Function I/O (VFIO) device to a virtio-net device when the VM needs to be migrated from a host to another. On one hand, the Single Root I/O Virtualization (SR-IOV) technology allows a device like a networking card to be split into several devices (the Virtual Functions) and with the help
Rationale The entire premise behind GitOps is to use Git as the source of truth for infrastructure and application configuration, taking advantage of Git workflows, while at the same time, having automation that realizes the configurations described in Git repositories (GitOps operators when we are deploying to Kubernetes). That said, both infrastructure configuration and application configuration
Working with bare-metal clusters? Looking for a LoadBalancer? MetalLB is what you need. MetalLB offers a network load balancer implementation that integrates with standard network equipment and allows you access applications through an external IP address. In short, it allows you to implement Kubernetes services of type LoadBalancer on baremetal clusters. It has two features that work together to
IntroductionWhen working with Kubernetes or OpenShift in a multicluster (possibly hybrid cloud) deployment, one of the considerations that comes up is how to direct traffic to the applications deployed across these clusters. To solve this problem, we need a global load balancer. The diagram above depicts an application called “app” deployed to two Kubernetes clusters and accessible via Ingress or
Kubernetes v1.22 is out now! This release showcases how the Kubernetes community works collectively and collaboratively to solidify the Kubernetes platform as a maturing open source system that brings together balance and stability with agility and innovation. This release brings key changes and enhancements to security, management and stability. Release Changes Focus On Balance The Kubernetes rel
Defining cgroups and how they help with resource management and performance tuning in this first article kicking off a four-part series covering cgroups and resource management. So you've heard of this thing called cgroups, and you are interested in finding out more. Perhaps you caught mention of it while listening to a talk about containerization. Maybe you were looking into Linux performance tun
Today Red Hat is launching OperatorHub.io in collaboration with AWS, Google Cloud and Microsoft. OperatorHub.io is designed to be the public registry for finding Kubernetes Operator backed services. Introduced by CoreOS in 2016, and now championed by Red Hat and a large portion of the Kubernetes community, the Operator pattern enables a fundamentally new way to automate infrastructure and applicat
EXECUTIVE SUMMARY “Cloud native” is a term used to describe applications designed specifically to run on a cloud-based infrastructure. Typically, cloud-native applications are developed as loosely coupled microservices running in containers managed by platforms. These applications anticipate failure, and they run and scale reliably even when their underlying infrastructure is experiencing outages.
Red Hat, Inc. (NYSE: RHT), the world's leading provider of open source solutions, today announced that it has signed a definitive agreement to acquire CoreOS, Inc., an innovator and leader in Kubernetes and container-native solutions, for a purchase price of $250 million, subject to certain adjustments at closing that are not expected to be material. Red Hat’s acquisition of CoreOS will further it
A little more than three years after the first public commit for Kubernetes, the 1.7 release is ready to be released. What's new in this release? You'll find a lot of interesting new features, but the overarching theme of 1.7 is "extensibility" with a side of security features and much more. Let's take a look at what Kubernetes 1.7 will bring. How Features Appear in Kubernetes As you probably know
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