Openshift

Source-to-Image (S2I) is a toolkit for building container images from source code. S2I produces ready-to-run images by injecting source code into a container image and letting the container prepare that source code for execution. By creating self-assembling builder images, you can version your images and control your build environments exactly like you use container images … Read more

This article provides a comparison between OpenShift and Kubernetes container management project covering both management and development areas. First of all, some definitions. Red Hat OpenShift is an Enterprise Open Source Container Orchestration platform. It’s a software product that includes components of the Kubernetes container management project but adds productivity and security features which are … Read more

Do you want to learn how to start quickly a WildFly cluster running on Openshift using WildFly Operator? then keep reading the rest of this article! First of all, what is an Operator? In essence, an Operator is a standard method of packaging, deploying and managing a Kubernetes application. With OpenShift 4, everything is deployed … Read more

In this short tutorial we will see how to deploy an Enterprise applications on Openshift (The Kitchensink demo) using a Binary Build, therefore having as input just the local WAR file. In most cases you can create applications on Openshift using the S2I (Source to Image) process using as input for your Templates a remote … Read more

In this tutorial we will learn how to run a Docker image, built from a Dockerfile, on Openshift. So our starting point will be a simple Dockerfile definition which pulls the default “WildFly” image and adds some customizations to it. In our case, it simply adds a management user: FROM jboss/wildfly RUN /opt/jboss/wildfly/bin/add-user.sh admin Password1! … Read more

In this tutorial we will learn how to deploy a Java EE application on WildFly Container image running on the top of OpenShift Container Platform using OKD. First of all, you need an OpenShift Container Platform cluster available. We suggest you having a look at the following article to learn how to install the Community … Read more

In this tutorial Java EE example application on Openshift we have deployed a sample Java EE application using a database on Openshift. We will explore now other possibilities such as running CLI commands as part of the Vuild process and include a set of custom modules and finally we will learn how to add artifacts … Read more

This tutorial will introduce you to configuring Storage on Openshift and use it for building stateful applications By default, OpenShift/Kubernetes containers don’t store data persistently. In practice, when you start an a container from an immutable Docker image Openshift will use an ephemeral storage, that is to say that all data created by the container … Read more

OKD is a distribution of Kubernetes optimized for continuous application development and multi-tenant deployment. OKD is the upstream Kubernetes distribution embedded in Red Hat OpenShift and can be used to add developer and operations-centric tools on top of Kubernetes to enable rapid application development, easy deployment and scaling, and long-term lifecycle maintenance for small and … Read more

The OpenShift client utility named oc can start a local OpenShift cluster, which includes all of the required services, such as an internal registry, a router, templates, and so on. This is one of the easiest ways to start a development environment. oc cluster up creates a default user and project, and once it is complete, it will allow you to use any … Read more