Welcome back to the final part of this multipart series about deploying modern web applications on Red Hat OpenShift. In the first post, we took a look at how to deploy a modern web application using the fewest commands.
In the second part, we took a deeper look into how the new source-to-image (S2I) web app builder works and how to use it as part of a chained build.
This third and final part will take a look at how you can run your app’s “development workflow” on OpenShift.
Continue reading “Modern web applications on OpenShift: Part 3 — Openshift as a development environment”
Observability is Key
One of the great things about Node.js is how well it performs in a container. Its fast start up time, and relatively small size make it a favorite for microservice applications on OpenShift. But with this shift to containerized deployments comes some complexity. As a result, monitoring Node.js applications can be difficult. At times it seems as though the performance and behavior of our applications become opaque to us. So what can we do to find and address issues in our services before they become a problem? We need to enhance observability by monitoring the state of our services.
Instrumentation of our applications is one way to increase observability. Therefore, in this article, I will demonstrate the instrumentation of a Node.js application using Prometheus.
Continue reading “Monitoring Node.js Applications on OpenShift with Prometheus”
In the previous article, we took a quick look at a new source-to-image (S2I) builder image designed for building and deploying modern web applications on OpenShift. While the last article was focused on getting your app deployed quickly, this article will look at how to use the S2I image as a “pure” builder image and combine it with an OpenShift chained build.
Continue reading “Modern web applications on OpenShift: Part 2 — Using chained builds”
In this multi-part series, we will take a look at how to deploy modern web applications, like React and Angular apps, to Red Hat OpenShift using a new source-to-image (S2I) builder image.
Continue reading “Modern web applications on OpenShift: Part 1 — Web apps in two commands”
Recently, I wrote a post called Zero to Express on OpenShift in Three Commands, which shows how to get started using Node.js, Express, and OpenShift together as fast as possible using the Node.js s2i (source-to-image) images that were recently released as part of Red Hat OpenShift Application Runtimes (RHOAR).
This post will add to the last one and show how we can start to debug and inspect our running code using the Chrome Developer Tools (DevTools) inspector.
Continue reading “How to Debug Your Node.js Application on OpenShift with Chrome DevTools”
Today Red Hat is making Node.js generally available to Red Hat customers through a subscription to Red Hat OpenShift Application Runtimes (RHOAR). RHOAR provides application developers with a variety of application runtimes running on the OpenShift Container Platform.
Continue reading “Announcing: Node.js General Availability in Red Hat OpenShift Application Runtimes”
This guide is designed to help you integrate your Red Hat Single Sign-On server with the OpenAPI (OAI)-based ActiveDocs in your 3scale developer portal. Although it has only been implemented with this particular Identity & Access Management solution (IAM), you could in theory make some customizations where necessary to integrate with another OpenID Connect-based solution.
Continue reading 3scale ActiveDocs and OAuth 2.0
Over the past few weeks I have been learning and enhancing my skills around the new buzz word “serverless” and trying to understand what this buzz is all about. As an ardent open-source developer, I was looking for a platform where I can develop and deploy the serverless functions, which is when I stumbled upon Apache OpenWhisk.
In this blog I will demonstrate how to build a simple nodejs function that can do reverse geocoding using Google Maps API, and how to deploy the functions on to Apache OpenWhisk.
Continue reading “Whisking Functions with Promises using OpenWhisk”
In this Blog post entry I will try to cover, how to use Red Hat Mobile Application Platform with private npm modules from registry.npmjs.org.
Continue reading “Use Private NPM modules with RHMAP”