Containers

Red Hat Summit
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Red Hat Summit Spotlight: Getting Started with Cloud-Native Apps Lab

Siamak Sadeghianfar

Cloud-native application development is the new paradigm for building applications and although is it often mistaken for microservices, it is much more than that and encompasses not only the application architecture but also the process through which applications are built, deployed, and managed. New apps are often seen as the focus of cloud-native applications; however, we believe existing and new applications are alike and can incorporate cloud-native practices if they have the four defining characteristics of cloud-native applications: Service-based: Build...

Introduction to Istio Service Mesh series
Article

Istio Smart Canary Launch: Easing Into Production

Don Schenck

This is part eight of a ten-week series and covers using the Canary Deployment pattern to ease code into production. Istio makes this easy while giving you several good options for intelligent routing. And you can do it all without changing your source code.

Announcing Red Hat Developer Studio 12.0.0.GA and JBoss Tools 4.6.0.Final for Eclipse Photon
Article

Announcing Developer Studio 11.3.0.GA, JBoss Tools 4.5.3 for Eclipse Oxygen.3a

Jeff Maury

The community editions of JBoss Tools 4.5.3 and JBoss Developer Studio 11.3 for Eclipse Oxygen.3a are here waiting for you. Check it out! Installation JBoss Developer Studio comes with everything pre-bundled in its installer. Simply download it from our JBoss Products page and run it like this: java -jar jboss-devstudio-.jar JBoss Tools or Bring-Your-Own-Eclipse (BYOE) JBoss Developer Studio require a bit more: This release requires at least Eclipse 4.7 (Oxygen) but we recommend using the latest Eclipse 4.7.3a Oxygen JEE...

Istio Chaos Engineering
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Istio Chaos Engineering: I Meant to Do That

Don Schenck

Testing software is challenging and very important. Testing for correctness is one thing, but testing for failures in network reliability is quite another task. This article will demonstrate how Istio makes this oh so easy.

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Bringing Coolstore Microservices to the Service Mesh: Part 1 - Exploring Auto-injection

James Falkner

distributed architectures introduce more complexity, services meshes can help soften the landing and shift some of that complexity out of our applications and place it where it belongs, in the application operational layer: Bringing Coolstore Microservices to the Service Mesh: Part 1 - Exploring auto-injection

Istio
Article

Istio Circuit Breaker: When Failure Is an Option

Don Schenck

The phrase "Failure is not an option" is tossed about with much bravado, with Istio Circuit Breaker. But the fact remains, things eventually fail. Everything. How, then, do you handle the inevitable failure of your microservices? This article will show you how.

Istio Circuit Breaker: How to Handle (Pool) Ejection
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Istio Circuit Breaker: How to Handle (Pool) Ejection

Don Schenck

This is week three of a ten-week series about Istio, kubernetes and OpenShift. The series started with an introduction to Istio, and this week covers Istio Circuit Breaker: How To Handle (Pool) Ejection.

Intro to Istio blog series
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Istio Route Rules: Telling Service Requests Where to Go

Don Schenck

This article covers Istio Route Rules and telling Service Requests Where To Go. OpenShift and Kubernetes do a great job of working to make sure calls to your microservice are routed to the correct pods. What if, however, you want to customize the routing?

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Introducing conu - Scripting Containers Made Easier

Dominika Hoďovská

Introducing conu - low-level python library for container scripting. conu gathers utilities that come in handy when creating tests, provides nice logging for troubleshooting and is easily extensible.

Intro to Istio blog series
Article

Istio: It makes a mesh of things

Don Schenck

this is an introduction to Istio. Istio helps automate the developer time to implement a feature. The combination of code complexity and code heft (i.e. number of lines of code) can put a drag on an implementation. Istio is a better way.

A Practical Introduction to Docker Container Terminology
Article

A Practical Introduction to Container Terminology

Scott McCarty (fatherlinux)

It is deceptively simple to get started with Linux Containers, but how well do you really understand the underlying technology? Could you explain the architectural trade offs of container hosts, images, and application definitions within Kubernetes? This article is intended to help you build that knowledge.

Running Microsoft SQL Server pod on OpenShift
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Running Microsoft SQL Server pod on OpenShift

Takayoshi Tanaka

Red Hat now supports Microsoft SQL Server running on RHEL Server. However, Red Hat doesn't provide an official docker image for MS SQL Server on RHEL. This post explains how to create a docker image for MS SQL Server on RHEL and run it on OpenShift.

How to customize OpenShift RBAC permissions
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Containerizing SQL DB changes with Flyway, Kubernetes, and OpenShift

Elvadas Nono

Learn how to containerize and automate SQL changes to micro databases using Flyway, Docker, Kubernetes on Openshift. Flyway is used to build on-the-fly a container that can connect to the containerized database to perform SQL updates using JDBC.

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E-book

Deploying to OpenShift

Graham Dumpleton

Get an in-depth tour of OpenShift®, the container-based software deployment and management platform from Red Hat® that provides a secure multitenant environment for the enterprise. This practical guide describes in detail how OpenShift, building on Kubernetes, enables you to automate the way you create, ship, and run applications in a containerized environment.

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Using Camel-Undertow component supporting http2 connection

Chandra Shekhar Pandey

This article would help to configure http2 protocol support for the camel-undertow component. Camel's undertow component use embedded undertow web-container of version undertow-core:jar:1.4.21. This version also supports the http2 connection. I have used camel version 2.21.0-SNAPSHOT from upstream https://github.com/apache/camel. Also, the curl version to test application using camel-undertow component is 7.53.1. This curl version supports --http2 flag for sending an http2 request. I have also used nghttp to test application from linux terminal. However, this article is not about http2...

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The State of Microservices Survey 2017 - Eight trends you need to know

Cesar Saavedra

During the fall of 2017, we conducted a microservices survey with our Red Hat Middleware and Red Hat OpenShift customers. Here are eight interesting trends discerned by the results: I. Microservices are being used to re-architect existing applications as much as for brand new projects There seems to be a strong emphasis in the market by technology vendors for positioning microservices as being only for new projects. However, our survey reveals that organizations are also using microservices to re-architect existing...

Configuring mKahaDB persistence storage for ActiveMQ
Article

Flexible Images or Using S2I for Image Configuration

Eliska Slobodova

Container images usually come with pre-defined tools or services with minimal or limited possibilities of further configuration. This brought us into a way of thinking of how to provide images that contain reasonable default settings but are, at the same time, easy to extend. And to make it more fun, this would be possible to achieve both on a single Linux host and in an orchestrated OpenShift environment. Source-to-image (S2I) has been introduced three years ago to allow developers to...

Using API keys securely in your OpenShift microservices and applications
Article

Accelerating the development of Node.js using OpenShift

Cesar Valdez

In this blog entry, I want to introduce a "different" way to work with OpenShift. In the typical way to deploy a Pod to OpenShift, we have available a set of very useful objects we have build/image configurations. This takes the pain from us by hiding the details about image construction but, sometimes we just want to see some code running in the cloud. Or we want to see if our service/application is able to interact with nearby services or...