microservices

In the microservices landscape, the API provides an essential form of communication between components. To allow secure communication between microservices components, as well as third-party applications, it's important to be able to consume API keys and other sensitive data in a manner that doesn't place the data at risk. Secret objects are specifically designed to hold sensitive information, and OpenShift makes exposing this information to the applications that need it easy. In this post, I'll demonstrate securely consuming API keys...

Welcome to the fourth installment of That App You Love, a blog series in which I show you how to you can make almost any app into a first-class cloud citizen. If you want to start from the beginning, jump back and check out Part 1: Making a Connection. In Part 3, we looked at how to customize the configuration of ZNC using an expect script and environment variables. But forget ZNC, because we’re really talking about That App You...

Welcome to the third installment of That App You Love, a blog series in which I show you how to you can make almost any app into a first-class cloud citizen. If you want to start from the beginning, jump back and check out Part 1: Making a Connection. In Part 2 of this series, we looked at ZNC’s configuration options to decide which settings we wanted to expose to the user, and which settings we could hard-code straight into...

Welcome to the second installment of That App You Love, a blog series in which I show you how to you can make almost any app into a first-class cloud citizen. If you want to start from the beginning, jump back and check out Part 1: Making a connection. In our last post, we met my ZNC container, good ol’ znc-cluster-app - but don’t fret about ZNC because we’re really talking about That App You Love - whatever it happens...

I am going to show you how I took an everyday, off-the-shelf application and turned it into a cluster-ready juggernaut of persistent usefulness. Along the way, I’ll share the pitfalls that I hit in getting this all working so that you can chuckle at my misfortune and avoid having to make the same mistakes yourself. This series will run every Tuesday and Thursday until we've accomplished our goals, so stay tuned in, subscribe, and thanks for reading! Meet “That App...

Microservices are becoming a new trend, thanks to the modularity and granularity they provide on top of advantages like releasing applications in a continuous manner. There are various platforms and projects that are rising which aims to make writing and managing microservices easy. Keeping that in mind, I thought, why not make a demo application that can give an example of how microservices are built and how they interact. In this article, I will be building a small application using...

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...

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...

Microservices are everywhere nowadays, and so is the idea of using service choreography (instead of service orchestration) for microservices interactions. In this article I describe how to set up service choreography using ActiveMQ virtual topics, which also enables scalable event based service interactions. Service Interaction Styles There are two main types of service interaction: synchronous and asynchronous. With synchronous interactions, the service consumer makes a request and blocks until the operation completes and a response is received. The HTTP protocol...

A few days ago I had a rant about the misuse and misunderstanding of REST (typically HTTP) for microservices. To summarize, a few people/groups have been suggesting that you cannot do asynchronous interactions with HTTP, and that as a result of using HTTP you cannot break down a monolithic application into more agile microservices. The fact that most people refer to REST when they really mean HTTP is also a source of personal frustration, because by this stage experienced people...

The Great India Developers Summit is quickly approaching and we are looking forward to landing in India to participate in this exciting event. This year we are focused on making DevOps work for you. DevOps isn’t a one size fits all. It depends on your organization, the culture and the technology you use to help you in your DevOps methodology. Stop by the booth and learn more about how DevOps can help you and while you are there sign up...

I've been working with some of our teams recently on microservices and how we can assist our customers and communities with best practices and recommendations, whether they're Java EE developers, Vert.x coders, writing Node.js applications or something else. If you've read any of my previous articles then you'll know I have a few thoughts on microservices, and yet there are many things I still feel I need to get straight in my own head. That's why I love talking with...

Here are Red Hat's Session and speakers at DevNexus 2016 in Atlanta this week. Join us at these sessions plus stop by our booth for some good swag! MONDAY, FEBRUARY 15 Docker for Java EE Developers(ALL DAY WORKSHOP) Abstract: Containers are enabling developers to package their applications in new ways that are portable and work consistently everywhere: on your machine, in production, in your data center, and in the cloud. And Docker has become the de facto standard for those...

Another December and another list of must-read blog articles for the year. These were the most read and averaged 16,000 views per article - so lots of interest! Scala vs. Node.js as a RESTful backend server (31000 views) Improving math performance in glibc Red Hat and Microsoft making .NET on Linux work for Enterprises Five different ways to handle leap seconds with NTP JIT-compilation using GCC 5 GCC5 and the C++11 ABI GCC 5 in Fedora Live Migrating QEMU-KVM Virtual...

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...

A little late for a March review. But March was late in general. The weather didn't really pick up and we had some scheduling issues on the JBoss weekly editorial. Things like that happen, I guess. Time for me to finally catch up with all the news and releases in March. In the middle of April. My apologies. More than 20 Releases Everybody woke up from hibernation and we've seen 20+ releases of JBoss Open Source Projects and Products in...

There seems to have been an explosion in the use of the term “microservices” recently. I’ve been peripherally aware of the concept for some time now, but it seems it first came to light with a fantastic collection of thoughts by Martin Fowler[1] - some great reading on the topic. This three-part post will not help you make a business case for rewriting your existing monolith as a series of microservices - for that, I’d recommend Rich Sharples’ writings on...

We just started this year and a lot has happened already. From now on, I will summarize the monthly happenings in JBoss to catch in one place. A Year in Review First thing a new year is all about is looking back. There's been plenty of recaps about 2014 for example by Eric Schabell who highlighted the most important events for JBoss Integration & BPM. Did you know, that there is a book called " OpenShift Primer" which got completely...

Containerizing things is particularly popular these days. Today we'll talk about the idioms we can use for containerization, and specifically play with apache spark and cassandra in our use case for creating easily deployed, immutable microservices. Note: This post is done using centos7 as a base for the containers, but these same recipes will apply with RHEL and Fedora base images. There are a few different ways to build a container. For example, for beginners, you can build a container...

This is a short heads-up about an upcoming, free webinar which discusses the influence of the growing demands for hyper-connected, internet-driven economy where users expect speedy delivery of new features, highly engaging personalized user experiences, and smooth, streamlined performance on today's application architecture and design. The result is that best practices for application development and architecture are rapidly changing. Traditional approaches to development are no longer competitive, with the new focus on simplicity, usability, and large-scale DevOps agility. In order...

"As 2014 comes to a close, we asked Red Hat executives and subject matter experts to weigh in with their thoughts on what they expect to see happen in the world of tech in 2015. We’ve grouped predictions from these experts on many topics, including: Big data Business of tech Cloud computing Containers Developers and application development Internet of Things Mobile OpenStack Security Software-defined datacenter" Here are some of favorites: Open source has made software affordable and plentiful. Cloud computing...