Red Hat OpenShift

by Chris Aniszczyk, Head of Open Source, Twitter Apache Mesos is a resource manager for datacenter infrastructure that uses a 2-level scheduling model to provide hardware resources to various application frameworks.Similar to Infrastructure-as-a-Service (IaaS), Mesos manages hardware and the execution of applications, while delegating the responsibility of deployment to other platforms. In the Mesos’ model, application frameworks are responsible for scheduling and deployment logic. Multiple frameworks can be run on bare metal at the same time, using a single pool...

Red Hat's Arun Gupta, the Java guru, has this great talk at DevNation: Techniques such as automated builds and testing, continuous integration and continuous deployment allow software to be developed to a high standard and easily packaged and deployed to test environments, resulting in the ability to rapidly, reliably and repeatedly push out enhancements and bug fixes to customers at low risk and with minimal manual overhead. What container-agnostic tools are available for testing, continuous integration and deployment of a...

The Winter of Code is a challenge for the best application built on OpenShift. Winter of Code 2015 challenge is organized (and judged) by OpenShift developers from Red Hat Czech as part of the Developer Conference which takes place from February 6th to February 8th in Brno, Czech Republic. From most practical to the most crazy, submit your applications and win fabulous prizes, such as Google Nexus Tablet and much more! The winners on each category will be announce on...

In many organizations development teams are split up from systems administrators. Both teams focus mainly on their roles and responsibilities, but this can lead to problems. Tensions between the groups can hinder your organization's efforts in getting the best product to the consumers in the shortest amount of time. Below are quotes which are commonly come up between developers and systems administrators. “Why doesn't the development team have to be on call? It's their code that breaks the system.” “Why...

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...

Il y a quelques mois, j'ai développé et publié une petite extension Puppet pour tuned-adm. En effet, cette commande est une fonctionnalité assez appréciable de RHEL, et il m'a semblé donc pertinent d'évoquer cette dernière sur Red Hat developer blog. Tour d'horizon de 'tuned-adm' Pour faire court, cette commande va s'occuper des nombreux fins réglages du système d'exploitation pour vous, selon l'usage que vous souhaitez faire de ce dernier. Par exemple, si vous utilisez le système comme un simple serveur...

Can you believe it's December and almost 2015? Where does the time go? Last month, we shared a Thanksgiving "thank you" for open source. December holidays are commonly about giving, so Red Hat is giving you the opportunity to use containers with the new availability of Red Hat Enterprise Linux® Atomic Beta. This follows the Red Hat Summit 2014 announcement about application containers, including the upstream Project Atomic and our intent to develop a small footprint, container host based on...

In the United States, we celebrate Thanksgiving on the fourth Thursday of November, which follows our Canadian colleagues who celebrate theirs in October. It's a day for families to get together and give thanks for what we have. Our Red Hat family wants to give thanks for open source, too. Can you imagine an IT world without open source? A number of UNIX businesses would be different. Same with development tools. We have so many scripting languages and other developer...

Here are some quick references to see and learn from the recent DevOps Enterprise Summit hosted by Electric Cloud and Gene Kim's IT Revolution. First, a summary from the former. "What a great week we had at the DevOps Enterprise Summit! "The conference was completely sold out, and it was standing room only most of the time. We had many excellent examples of enterprises applying DevOps practices in the real-world, from the likes of Disney, GE and Nordstrom – just...

Like most programmers, I find it much easier to take some existing example of code and modify it to do what I want. Sometimes, I end up with nothing from the original source, but I still find it easier. I wonder if this is akin to writing where, I find, if you put the words down in a stream of consciousness manner, then " rewrite, rewrite, rewrite." As such, I am really excited about the efforts from the CentOS, Fedora...

Traveling to San Francisco for the DevOps Enterprise conference has been a transformational event for me. Even though I had been aware of the success stories of companies like Target, Disney, Raytheon, it was quite a different matter to experience their stories in person. The most critical lesson from day one for me was to focus on the community to help you remain positive, motivated, educated and most importantly accelerate the adoption of the DevOps movement in your organization. Critical...

POODLE – An SSL 3.0 Vulnerability (CVE-2014-3566) Red Hat Product Security has been made aware of a vulnerability in the SSL 3.0 protocol, which has been assigned CVE-2014-3566. All implementations of SSL 3.0 are affected. This vulnerability allows a man-in-the-middle attacker to decrypt ciphertext using a padding oracle side-channel attack. To mitigate this vulnerability, it is recommended that you explicitly disable SSL 3.0 in favor of TLS 1.1 or later in all affected packages. Read the whole article via Red...

"The recent few days have been hectic for everyone who works in the Linux/Unix world. Bash security flaws have rocked the globe leaving people confused, worried, or just frustrated. Now that the storm is over and patches are available for most operating systems, here are the answers to some of the common questions we’ve been asked:" Read the whole article - from the Red Hat security engineering team: Frequently Asked Questions about the Shellshock Bash flaws | Red Hat Security.

Because we’re Java Developers, too Red Hat and the JBoss Community have developed many popular, innovative technologies and projects that have shaped Java as we know it. This activity is most notably around Red Hat® JBoss® Middleware, but is also taking place in many related open source projects. In addition, we also make use of Java in a wide range of our other products. This means that, as a Java developer, you'll find plenty to keep you happy with our...

From Barry Manilow to Kiss, to Mary J. Blige and everyone in-between, people have been singing Talk to me for decades. And is it any wonder? Often we don't feel heard or feel that we don't understand what people are trying to say or do. In the fast pace of today's business, effective communication to get everyone on the same page quickly is essential. Needless to say, this isn't always easy. Given that we have to communicate effectively and the...

Newcomers to python-ideas occasionally make reference to the idea of "Python 4000" when proposing backwards incompatible changes that don't offer a clear migration path from currently legal Python 3 code. After all, we allowed that kind of change for Python 3.0, so why wouldn't we allow it for Python 4.0? I've heard that question enough times now (including the more concerned phrasing "You made a big backwards compatibility break once, how do I know you won't do it again?"), that...

If Ruby development is your thing, here at Red Hat we understand why. We make use of Ruby and Ruby on Rails in our products and provide a range of tools to get your Ruby applications up and running. Also, we offer you the opportunity to take your Ruby skills a little further, as we have projects you can get involved in. Read on to discover how we use Ruby in OpenShift by Red Hat®, our Platform-as-a-Service (PaaS) portfolio that...

Hey, Boston! DevOpsDays will be in town next week and is sold out (good news, but bad if you're missing it). Red Hat is a sponsor, so we'll see you there (We've got schwag.) Here's the event home page and their program agenda.

Welcome to the Red Hat® Developer Newsletter. As we're in the season for covering our arms and faces with sunscreen, here's another ARM for your attention. Last month, Red Hat announced the launch of the Red Hat ARM Partner Early Access Program to enhance partner collaboration and facilitate partner-initiated system designs —based on the 64-bit capable ARMv8-A architecture —that include Red Hat software. The program is aimed at silicon vendors, independent hardware vendors (IHVs), original equipment manufacturers (OEMs), and original...

******* EDIT This entry is out of date, I have moved the instructions to the Google Kubernetes github repo. END EDIT ******* These are my notes on how to get started evaluating a Fedora / Docker / kubernetes environment. I'm going to start with two hosts. Both will run Fedora rawhide. The goal is to stand up both hosts with kubernetes / Docker and use kubernetes to orchestrate the deployment of a couple of simple applications. Derek Carr has already...

by Grant Murphy "The Victims project is a Red Hat initiative that aims to detect known vulnerable dependencies in Java projects and deployments. Our initial focus was Java projects that were built using Maven. The victims-enforcer plug-in for Maven provides developers with immediate feedback if any of their project dependencies contain known vulnerabilities. However, until recently we did not have a good solution for scanning deployments or tools that work outside of a typical build and release cycle. The alpha...

b y siddharth "The FORTIFY_SOURCE macro provides lightweight support for detecting buffer overflows in various functions that perform operations on memory and strings. Not all types of buffer overflows can be detected with this macro, but it does provide an extra level of validation for some functions that are potentially a source of buffer overflow flaws. It protects both C and C++ code. FORTIFY_SOURCE works by computing the number of bytes that are going to be copied from a source...

Flock 2014 (Editor's correction: Flock is a "new, larger and pre-scheduled conference" for North America and Europe) is just a few weeks away and will be hosted in Prague, Czech Republic. The entire list of sessions can be seen here, but below is the list of the 39 sessions delivered by Red Hatters. Have a great conference! WEDNESDAY Matthew Miller: Opening: Fedora Project Leader, Wednesday, August 6 • 08:45 - 09:00 Opening remarks from Fedora Project Leader. Amita Sharma: Fedora...

Excerpts from the original article: "Red Hat announced the general availability of Red Hat Enterprise Linux OpenStack Platform 5, the third enterprise release of Red Hat's OpenStack offering, designed to serve as the foundation for building OpenStack-powered clouds for advanced cloud users, telecommunications companies, Internet service providers (ISPs), and public cloud hosting providers. "Red Hat Enterprise Linux OpenStack Platform 5 is based on the OpenStack Icehouse release and includes several new features aimed at easing enterprise adoption of OpenStack technology...