Red Hat OpenShift

Installation of AWX (Ansible Tower) on top of OpenShift, Set a dynamic inventory to access the servers from AWS

Introduction As you may already know, the Red Hat Mobile Application Platform (RHMAP) is available as a self-administered, on-premise, installation as well as a hosted platform. This offers more opportunities for customers to benefit from increased security, flexibility and control over their platform. Note: This installation is strictly for sandbox demonstration purposes. In the interests of simplicity, it will be running on infrastructure that will not be secure so no confidential data should be stored in this instance. Preparation Before...

When you build your .NET Core project, NuGet packages are retrieved from nuget.org by default. Sometimes, however, you might want to use a local NuGet repository. For example, you may want to: use private NuGet packages, but you don't want anyone except your associates to see them. cache a NuGet repository at a server near your build servers leave your build server disconnected from the Internet. I'll explain how to set up a private NuGet server on OpenShift and how...

As part of a two-day microservices workshop I’m putting together, I’ve been thinking a lot about how to explain monolith-application decomposition and what a transition to microservices might look like. This is a small subset of that material, but I want to share it with you to get feedback (in the workshop we go into more detail about whether you should even break up your monolith). I base this on my own tried and true real-life experience as well as...

After a number of months with .NET Core 2.0 previews, Microsoft has released .NET Core 2.0. Very exciting for the open source world! If you've not seen Scott Hunter talk about today's announcement, see it here. Red Hat has been offering .NET Core 1.1 for a while now, and we expect many customers to be interested in 2.0. Stay tuned for more.

We want you to have the best experience in getting your questions answered. We believe StackOverflow's Q&A format, along with its excellent features and moderation, will reach a broader community of developers who can help respond to your questions. As a result, we've made all of our product forums read-only. You can search for technical developer questions about our products on our StackOverflow page [1], or you can post your questions to StackOverflow using the relevant tags [2]. Red Hat...

I've been using containers for nearly 3 years, initially working in the Technical Support team helping customers solve problems in their applications and giving advice about best practices to run containers. Today I work on a team where we develop containers to use in our OpenShift environment, and because of my Technical Support background, my troubleshooting skills helped me in this task. I run containers for most of my tasks and it makes my life easier. I can run any...

This article will show how OpenTracing instrumentation can be used to collect Application Metrics, in addition to (but independent from) reported tracing data, from services deployed within Kubernetes. These Application Metrics can then be displayed in your monitoring dashboard and used to trigger alerts. THE EXAMPLE APPLICATION In a recent article, we showed how a Spring Boot application could easily be instrumented using OpenTracing. The example we are going to use in this article uses the same approach to create...

I’m assuming you’ve already tried to run some example of a multi-container application. Let’s say we have an application composed of the following: Web service Database Key-value store Worker Let’s focus on the database now. Container images for databases usually come with an easy way to configure them via environment variables. The great thing about this approach is how easy to use it is, e.g. let’s take our RHSCL PostgreSQL 9.5 container image. If you try to run it just...

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With a major release, you would usually expect major modifications in the core of the framework. But this time, the migration is not too complicated. Not only because of the migration tool provided to make a smooth transition from Framework 7 to Framework 8, but also because of the similarity in many of the components’ APIs. A good upgrade strategy is needed though, and I summarized them under the following headlines: Upgrade dependencies in the POM file Run Maven goal...

Scott McCarty shares how containers can help in the DevOps world, but pay attention to 3 items.

Analytics and Data Science on OpenShift with Apache Spark, by Will Benton

This lightning talk was delivered at Red Hat Summit 2017.

Charlotte delivered this lightning talk at Red Hat Summit 2017.

Rich delivered this lightning talk at Red Hat Summit 2017.

Marek delivered this lightning talk at Red Hat Summit 2017 in Boston.

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From hobbyist SoC devices such as the ubiquitous Raspberry Pi to a complete domination of the mobile device market, ARM processors have proven the value of the architecture. It is easy to see why ARM processors were able to explode in this market, given that they are able to pack quite a bit of performance into a rather small physical space. Take for instance Qualcomm's Snapdragon 400 processor, which is used in many products including the Huawei Watch This processor...

The March/April C++ meeting was back in Kona, Hawaii again, only a year and a half after the last Kona meeting. As usual, Red Hat sent three of us to the meeting: Jonathan Wakely, Torvald Riegel, and me. The headline from the meeting was voting to submit C++17 for approval by the national bodies. There wasn't really any significant resistance. There was one new feature added in the final draft, namely std::byte, which was expected to go in at the...

Hey, developers! Do you care about using the best practices to apply your application to the cloud? If so then you should be using The 12-factor App , which is a methodology for building software-as-a-service. Today I like to talk about the 12-factor App, which I had presented to a group at the Red Hat Summit last month. Every developer that is moving their application to the cloud will face a different environment than what they are used to, their...

I woke up Tuesday morning to an email from AWS reporting a malicious activity on one of our instances. The report found an activity resembling “scanning remote hosts on the Internet…”. This confirmed our suspicion that something might be wrong with the CI instance. The instance contained our Jenkins (V2.32) server and some of our internal tools. During the weekend (the Monday was a public holiday) Jenkins had been misbehaving. On Sunday morning, I had been on Jenkins but by...

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In my previous post in the series, I discussed some fairly surface-level differences between C#/.NET and Java. These can be important for Java developers transitioning to .NET Core, to create code that looks and feels "native" to the new ecosystem. In this post, we dig beneath the surface, to understand .NET's type system. It is my belief that, with Java in the rear view mirror, the .NET type system is more effective and enjoyable to write on. But you be...

Clustering Eclipse Vert.x - From 0 to Clustering in seconds, by Deven Philips - Deven delivered this lightning talk at Red Hat Summit 2017.

Are you interested in all things JBoss+Cloud, then this is your opportunity to ask. Bob McWhirter (BMW) is lead JBoss Cloud Architect and will cover projects like BoxGrinder, Steam Cannon and CirrAS. Now is your opportunity to see the next generation of IT infrastructure and Platform as a Service using JBoss technologies. Presenter: As the chief architect for middleware cloud computing at Red Hat, Bob McWhirter leads a team of engineers that is paving the way for the enterprise cloud computing paradigm shift. Named a Red Hat Fellow in 2009, McWhirter joined Red Hat in 2007 and is responsible for navigating the cloud as it relates to Red Hat’s middleware technologies within the JBoss Community and via JBoss Enterprise Middleware. He also leads the TorqueBox project, creating a Ruby application server on top of the core JBoss Application Server. Prior to joining Red Hat, McWhirter served as a founding engineer at Radar Networks, where he spent nearly two years working on the semantic-Web platform Twine.com. He is also the founder of the Codehaus open source community.

In this small screencast we'll show you how to get started with OpenShift using JBoss Tools. We'll show you how to create an new OpenShift application and import it to your Eclipse workspace. We'll then show you how to change the starter-application in your workspace, and push those changes to OpenShift.

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