Video
Kubernetes for Java developers | DevNation Tech Talk
This brief session will provide you with a basic understanding of what Kubernetes is and how it can help you run your Linux containers at scale.
Red Hat OpenShift
Article
Flexible Images or Using S2I for Image Configuration
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...
Article
Accelerating the development of Node.js using OpenShift
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...
Article
Red Hat Sessions at Devoxx 2017
The 2017 edition of the legendary Devoxx conference is over, and as always, it has been a fantastic week. Hosted in Antwerp, Belgium, and sold out months in advance, it's one of the top events of the Java community. Five days fully packed with workshops, regular conference sessions, BOFs, ignite sessions and even quickie talks during the lunch breaks - there was something for everyone. The super-comfortable cinema seats at the Devoxx venue are legendary, but also if you couldn't...
Article
Wiping the Slate Clean with the OpenShift Container Platform
With traditional virtualized infrastructure or Infrastructure-as-a-Service, it is common practice to regularly refresh instances back to a known good state. This provides confidence that the application workloads have the correct runtime configuration, no deltas are being introduced, and they can be relied upon to provide value for the business. In these cases, you might use tools such as Ansible or Jenkins, but when we move our application workloads to containers running on OpenShift Container Platform, we can use native tools...
Article
Announcing Red Hat Developer Studio 11.1.0.GA and JBoss Tools 4.5.1.Final for Eclipse Oxygen.1A
JBoss Tools 4.5.1 and Red Hat JBoss Developer Studio 11.1 for Eclipse Oxygen.1A 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 requires a bit more: This release requires at least Eclipse 4.7 (Oxygen) but we recommend using the latest Eclipse 4.7.1A Oxygen JEE Bundle since...
Article
Fall 2017 GNU Toolchain Update Part 4
(Part 4)The GNU Toolchain is a collection of programming tools produced by the GNU Project. The tools are often packaged together due to their common use for developing software applications, operating systems, and low-level software for embedded systems. This blog is part of a regular series covering the latest changes and improvements in the components that make up this Toolchain. Apart from the announcement of new releases, however, the features described here are at the bleeding edge of software development...
Article
Build your Software Defined Data Center with Red Hat CloudForms and Openstack - part 2
Welcome back, here we will continue with the second part of my post, where we will work with Red Hat Cloudforms. If you remember, in our first post we spoke about Red Hat OpenStack Platform 11 (RHOSP). In addition to the blog article, at the end of this article is also a demo video I created to show to our customers/partners how they can build a fully automated software data center. Hands-on - Part 2 Well, now we need something...
Video
Ep. 1: Input Validation (2 of 2)
(Part 2)Learn about recommended practices for producing secure code with input validation in part one of this four-part video series.
Video
Ep. 4: Security Mentality (2 of 2)
Learn how to start adopting a security-like mentality, also known as the "security mindset" in part four of this four-part video series.
Video
Ep. 3: Authorization
Learn about authorization such as user privileges, levels of access, and how they're different in part three of this four-part video series.
Video
Ep. 2: Numeric Errors
Learn about numeric errors and the dangers of using incorrect data types in part two of this four-part video series.
Video
Ep. 1: Input Validation (1 of 2)
(Part 1)Learn about recommended practices for producing secure code with input validation in part one of this four-part video series.
Article
How to configure persistent storage with OpenShift or Kubernetes for development environment
We know that containers in Openshift or Kubernetes don't persist data. Every time we start an application, it is started in a new container with an immutable Docker image. Hence, any persisted data in the file systems is lost when the container stops. Hence if an application or container is rebuilt or restarted than we can't view previous logs or if we are using containers with mysql or any other database then schema, tables, and all data will be lost...
Video
Minishift
Minishift
Video
Openshift Introduction - Diogenes Rettori
In this session, Diógenes gives an introduction of the basic concepts that make OpenShift, giving special attention to its relationship with Linux containers and Kubernetes.
Article
vSphere Cloud provider and VMDK dynamic provisioning
The release of OpenShift Container Platform 3.6 brings support for vsphere cloud provider. This provides vsphere VMDK dynamic provisioning for persistent volumes for container workloads. The storage presented to vsphere virtual machines as a VMDK has ReadWriteOnce access mode. In the OCP 3.6 on vSphere reference architecture, much of this process is automated and can be implemented easily. Virtual Machine Disks or VMDKs exists in virtual machines. Configuring the OCP cluster for vsphere cloud provider support requires: Master Node Configuration...
Article
Data Streaming with WildFly Swarm and Apache Kafka
At the beginning of October, I attended JavaOne in San Francisco to present on WildFly Swarm and Apache Kafka. For those of you that weren't able to attend the session, or for those that did and saw first hand the issues with the demo, I will be covering all the details of how the demo should work! The presentation material that was presented at JavaOne can be found here, and all the code for the demos is in GitHub. MiniShift...
Article
First steps in integration of Windows and Linux Containers in OpenShift
I've started an interesting exploration on the integration of Microsoft Windows Containers and Linux Containers in an OCP Environment. This allows a true bi-modal IT technical implementation by combining the strength of both platforms into one cluster. So, I start this off, with the deployment of an OpenShift Cluster on Azure, using the 3.6 reference architecture. After this is run, I used the Azure Portal to add a Windows Server 2016 Node to the cluster. So if you look closely...
Article
Remote debug your ASP.NET Core container on OpenShift with Visual Studio Code
Visual Studio provides a graphical remote debugging ASP.NET Core app with Docker Tools for Windows. Since Visual Studio supports SSH protocol, you can remote debug ASP.NET Core process running on the Linux host. It used to be if you install and setup SSH server on docker container, you can remote debug with Visual Studio. However, it's strongly not recommended due to security reasons. Now I'll explain to you how to remote debug your ASP.NET Core on OpenShift with Visual Studio...
Article
Kubernetes and OpenShift Meetup (7th October)
It was a beautiful and lazy Saturday morning in Bengaluru, on 7 October 2017. Kubernetes arrived here and decided it was a great day to meet up with some of its friends here and spend some quality time with them. But alas! Kubernetes could not speak, at least not yet. It certainly could grow and shrink, at moments notice no less, but words, no, those failed it. It needed some help, from some of its most trusted friends, those it...
Article
Guide to starting to use AWX, the upstream of Red Hat Ansible Tower, on top of OpenShift
Installation of AWX (Ansible Tower) on top of OpenShift, Set a dynamic inventory to access the servers from AWS
Article
How to quick install Red Hat Mobile on Openshift
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...
Article
Running a NuGet server on OpenShift
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...
Article
Low-risk Monolith to Microservice Evolution Part I
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...
