Microservices

UPDATE: Read the new article " How to run systemd in a container" for the latest information. What is the scoop on running systemd in a container? A couple of years ago I wrote an article on Running systemd with a docker-formatted Container. Sadly, two years later if you google docker systemd this is still the article people see --- it's time for an update. This is a follow-up for my last article. docker upstream vs. systemd I have given...

Do you like JavaEE apps, but wonder how to fit them into a microservices-centric workflow? WildFly Swarm is the answer. I know—“Java” and “microservices” are not words that seem to go together. Java is an old, relatively unsexy programming language. It’s a pretty useful one, but it was created long before the era of Continuous Delivery, containers and microservices. But that doesn’t mean you have to give up on Java if you want to take advantage of microservices. WildFly Swarm...

In an earlier article, Debugging Java Applications using the Red Hat Container Development Kit, it was discussed how developer productivity could be improved through the use of remotely debugging containerized Java applications running in OpenShift and the Red Hat Container Development Kit. Not only does remote debugging provide real time insight into the operation and performance of an application, but reduces the cycle time a developer may face as they are working through a solution. Included in the discussion were...

You’ve heard of microservices. You’ve heard of OpenShift. You’ve heard of Kubernetes. Actually, you may already have considerable experience with each of these three concepts and tools. But do you know how to combine all of them in order to deploy microservices effectively? If not, this article is for you. Below, I’ll explain how microservices, OpenShift and Kubernetes fit together, and provide an overview of how you can leverage the orchestration tools provided by OpenShift and Kubernetes in order to...

This year’s middleware keynote address at Red Hat Summit talked about microservices, the power of the pipeline, and how developers and devops can work together to release code to production at a much higher rate. The keynote also demonstrated how releases can be shipped so you can switch from the existing deployment to a new deployment (blue/green deployments), and demonstrated how to roll out a canary deployment to a subset of users to test out new features. (If the canary...

https://www.youtube.com/watch?v=MrV0DqTqpFU The challenge of data with microservices Of the reasons we attempt a microservices architecture, chief among them is allowing your teams to be able to work on different parts of the system at different speeds with minimal impact across teams. So we want teams to be autonomous, capable of making decisions about how to best implement and operate their services, and free to make changes as quickly as the business may desire. If we have our teams organized to...

One of my favourite books is Antifragile by Nassim Taleb where the author talks about things that gain from disorder. Nacim introduces the concept of antifragility which is similar to hormesis in biology or creative destruction in economics and analyses it charecteristics in great details. If you find this topic interesting, there are also other authors who have examined the same phenomenon in different industries such as Gary Hamel, C. S. Holling, Jan Husdal. The concept of antifragile is the...

Following my introduction blog about why microservices should be event-driven, I’d like to take another few steps and blog about it. (Hopefully I saw you at jBCNconf and Red Hat Summit in San Francisco, where I spoke about some of these topics). Follow me on twitter @christianposta for updates on this project. In this article we discuss the first parts of carving up a monolith. The monolith I’m exploring in depth for these articles will be from the Ticket Monster...

WildFly Swarm is a "Just Enough" Application Server. If you don't need EJB, don't bundle it. Likewise for JPA, JAX-RS, or whatever subsystem. Bringing only the portions of an App Server that you need is the strategy that makes Java EE and the JVM a real contender in the microservices space. Ken Finnigan, Co Founder/Lead of WildFly Swarm, walked us through how easy it is to move a monolith deployment to a WildFly Swarm Microservice. Getting Started Getting started is...

A huge problem facing modern enterprises is managing the large software systems and applications they deal with on a daily basis. Be it the CRM system purchased by a predecessor, a bundled HRM product thrown in to sweeten a deal, or the CMS that marketing could not live without, silos of information exist in the modern enterprise, and it can often be difficult to utilize the data that these systems contain. When an enterprise decides to buy a proprietary system...

If you'd like to receive this monthly newsletter with fresh news, register here. Red Hat Developers Newsletter - August 2015 Welcome to the Red Hat ® Developers Newsletter. This month, many of you are getting your kids ready to go back to school. Learning can be a lot of fun, and we Red Hatters wish them (and you) good luck for the new year. By the way, have you learned something new lately? How about containers or Red Hat Enterprise...