If you are new to OpenShift, then you might want to install Apache Tomcat on top of it for simpler experimentation. This article guides you through installing Apache Tomcat from a Docker image and then using it to deploy a Java web app on Red Hat OpenShift. I also show you how to access the Tomcat management console on OpenShift.
To follow the examples, you must have an OpenShift account. We will use the OpenShift command-line interface (CLI) for this demonstration, so be sure to install the CLI (
oc) before you begin.
A note about the sample application: You will need a Java web application to use for the deployment example. I am using the Sample Java Web Application from the OpenShift Demos GitHub repository. It is a simple application that is useful for understanding basic concepts. You may use the provided sample or choose your own application to work with.
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Kubernetes conversations rarely center the developer’s perspective. As a result, doing our job in a k8s cluster often requires building complicated YAML resource files, writing custom shell scripts, and understanding the countless options that are available in
docker commands. On top of all of that, we have the learning curve of understanding Kubernetes terminology and using it the way that operations teams do.
Continue reading Enterprise Kubernetes development with odo: The CLI tool for developers
Developing applications on a Kubernetes distribution like Red Hat OpenShift—or on Red Hat Enterprise Linux (RHEL), or by using our Universal Base Images—is easier with Red Hat’s build of Node.js. The latest update of Red Hat Runtimes now includes Node.js 12.4.1, which provides a supported runtime for LTS releases. This new Red Hat build of Node.js together with the release of Red Hat Enterprise Linux 8.1 provides a number of new features and enhancements compared to Node.js 10.
This article focuses on these new features and enhancements.
Continue reading “Node.js update for Red Hat Runtimes brings improved support for native modules, diagnostic reporting, and more”
In this article, we take a look at user flow improvements for deploying applications in Red Hat OpenShift 4.3‘s Developer perspective. You can learn more about all of the developer-focused console improvements in the OpenShift 4.3 release article here. Since the initial launch of the Developer perspective in the OpenShift 4.2 release, we’ve had frequent feedback sessions with developers, developer advocates, stakeholders, and other community members to better understand how the experience meets their needs. While, overall, the user interface has been well received, we continue to gather and use the feedback to enhance our flows.
Continue reading Deploying applications in the OpenShift 4.3 Developer perspective