Until recently, Knative Serving used Istio as its default networking component for handling external cluster traffic and service-to-service communication. Istio is a great service mesh solution, but it can add unwanted complexity and resource use to your cluster if you don’t need it.
That’s why we created Kourier: To simplify the ingress side of Knative Serving. Knative recently adopted Kourier, so it is now a part of the Knative family! This article introduces Kourier and gets you started with using it as a simpler, more lightweight way to expose Knative applications to an external network.
Let’s begin with a brief overview of Knative and Knative Serving.
Continue reading “Kourier: A lightweight Knative Serving ingress”
Go is an increasingly popular programming language, and frequently chosen for developing command-line utilities. Many tools used with Kubernetes and Red Hat OpenShift are written in Go, including the command-line interfaces (CLIs) for Tekton (
tkn), OpenShift (
oc), and Kubernetes (
kubectl). Also, developers can compile Go to a single executable for a broad range of operating systems. As a result, it’s easy to develop and desk-test applications before putting them into containers and running those containers in OpenShift.
In a meta sort of way, this is an article about a tutorial, where I show you how to build and deliver a small Go RESTful service using OpenShift Pipelines. You could just jump to the tutorial now, but I suggest reading this article first. I’ll quickly introduce the working environment for the tutorial, and I’ll explain my logic for setting up the tutorial the way that I did.
Continue reading “Build a Go application using OpenShift Pipelines”
Red Hat OpenShift Serverless delivers Kubernetes-native, event-driven primitives for microservices, containers, and compatible Function-as-a-Service (FaaS) implementations. OpenShft Serverless provides out-of-the-box traffic routing and security capabilities. This offering combines Red Hat Operators, Knative, and Red Hat OpenShift. Combined, these tools allow stateless and serverless workloads to run across OpenShift deployments on private, public, hybrid, or multi-cloud environments with automated operations.
OpenShift Serverless is now generally available. It enables developers to focus purely on building next-generation applications with a wide choice of languages, frameworks, development environments, and other tools for writing and deploying business-differentiating applications.
Continue reading “Serverless applications made faster and simpler with OpenShift Serverless GA”
The developer experience in the Red Hat OpenShift Container Platform web console keeps getting better. You’ve probably already heard about our streamlined user flows to build and deploy applications, plus the ability to understand the structure of your application via the Topology view. Each new release of Red Hat OpenShift includes usability improvements and new features to help developers reach their goals.
In OpenShift 4.4, we focused on making application deployment easier through the Developer Catalog, improving the experience of Operator-backed services, and supporting Helm Charts. As for feature updates, we:
- Made a number of topology enhancements to help streamline discoverability and scalability.
- Introduced an application monitoring section.
- Introduced a new Pipeline Builder.
Continue reading “What’s new in the OpenShift 4.4 web console developer experience”
Red Hat OpenShift Serverless 1.5.0 (currently in tech preview) runs on Red Hat OpenShift Container Platform 4.3. It enables stateful, stateless, and serverless workloads to all operate on a single multi-cloud container platform. Apache Camel K is a lightweight integration platform that runs natively on Kubernetes. Camel K has serverless superpowers.
In this article, I will show you how to use OpenShift Serverless and Camel K to create a serverless Java application that you can scale up or down on demand.
Continue reading “Build and deploy a serverless app with Camel K and Red Hat OpenShift Serverless 1.5.0 Tech Preview”
Serverless architecture has recently taken center stage in cloud-native application deployment: Enterprises started to see the benefits that serverless applications bring to them, such as agility, rapid deployment, and resource cost optimization. As with any other new technology, there were multiple ways to approach and employ serverless technologies, such as Function-as-a-Service (FaaS) and Backend-as-a-Service (BaaS)—that is, running your applications as ephemeral containers—with the ability to scale up and down automatically.
Continue reading “Knative Cookbook: Building Effective Serverless Applications with Kubernetes and OpenShift”
DevNation tech talks are hosted by the Red Hat technologists who create our products. These sessions include real solutions and code and sample projects to help you get started. In this presentation, you’ll learn about the serverless developer experience on Kubernetes with Knative and Apache Kafka from Matthias Wessendorf.
Continue reading “Serverless Kafka on Kubernetes”
In the past few years, developers have addressed the challenge of evolving from monolith systems to microservices architecture. These days, we hear about the adoption of serverless systems.
Like many trends in software, there’s no one clear view of how to define serverless or how this approach offers added value for our software architecture. The perfect place to start with serverless systems and discover serverless capabilities is through a use case.
Continue reading “Move your APIs into the serverless era with Camel K and Knative”
Our first DevNation Live regional event was held in Bengaluru, India in July. This free technology event focused on open source innovations, with sessions presented by elite Red Hat technologists.
In this session, Burr Sutter discusses serverless architectures, which have become a common approach in organizations that want to be more effective in DevOps and optimize their IT resources. This approach adds further flexibility to the next generation of microservices, and Knative helps running your microservices serverless workloads on Kubernetes/OpenShift be more agile and effective.
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Millions of developers worldwide want to learn more about serverless computing. If you’re one of the lucky thousands attending Red Hat Summit in Boston May 7-9, you can gain hands-on experience with the help of Burr Sutter and the Red Hat Developer team.
Guru Night is a BYOL (bring your own laptop) event taking place Wednesday, May 8 from 5:00 p.m. to 8:00 p.m. at the Boston Convention and Event Center in ML2 East-258AB. (Doubtless there will be a map to show you where or what ML2 East etc. is; we have no idea.) Head to the signup page and fill out your details now.
TL;DR: Beer and pizza will be served.
We felt compelled to point that out. But read on.
Continue reading “Guru Night at Red Hat Summit: Hands-on experience with serverless computing”