Developer Tools

After Unlock your MariaDB/MySQL data, Unlock your PostgreSQL data, and Unlock your Hadoop data with Hortonworks episodes, let's continue the journey with this new episode of the series: "Unlock your [….] data with Red Hat JBoss Data Virtualization." Through this blog series, we will look at how to connect Red Hat JBoss Data Virtualization (JDV) to different and heterogeneous data sources. JDV is a lean, virtual data integration solution that unlocks trapped data and delivers it as easily consumable, unified...

While not specifically related to .NET on Linux, PowerShell on Linux is available and -- let's face it -- if you're a Windows developer you're using PowerShell. If you're not using PowerShell, now is the time to start. While bash is the traditional Linux shell, PowerShell gives you the advantage of objects. In PowerShell, everything is an object, with properties you can directly access. It's also a very powerful object-oriented scripting language, with classes and methods, much like any OOP...

As every developer knows, debugging an application can be difficult and often enough you spend as much or more time debugging an application as originally writing it. Every programmer develops their collection of tools and techniques. Traditionally these have included full-fledged debuggers, instrumentation of the code, and tracing and logging. Each of these has their particular strengths and weaknesses. Source-level debuggers Source-level debuggers like GDB, TotalView, and DDT operate outside of the address space of the programs being debugged and...

Camel Apache Camel is a piece of JBoss Fuse. It is an open source integration framework with a variety of components to fit your integration needs. Camel is a Java-based implementation of the Enterprise Integration Patterns based on a book by Gregor Hohpe and Bobby Woolf. Camel includes components for HTTP, Files, FTP, JMS, JDBC, AWS, and much more. While Camel can be used for many different purposes, this post will focus on the REST DSL specifically. Rest DSL Overview...

Coala is a free and open-source language-independent analysis toolkit, written in Python. The primary goal of coala is to make it easier for developers to create rules, which a project's code should conform to the developer-defined rules. It has support for more than 40+ programming languages and is best for people who want their code to look good and follow good coding practices. It's been developed at https://github.com/coala/coala Bears and coala Coala checks the code with the help of bears...

Get started developing with the native version of C++ on Red Hat Enterprise Linux in under 10 minutes. Introduction and Prerequisites In this tutorial, you will install the GNU Compiler Collection (GCC) and build a simple C++ Hello World application. This tutorial should take less than 15 minutes to complete. Before you begin, you will need a current Red Hat Enterprise Linux 6 workstation or server subscription that allows you to download software and get updates from Red Hat. If...

Get started developing with C++ on Red Hat Enterprise Linux in under 10 minutes. Introduction and Prerequisites In this tutorial, you will install the native GNU Compiler Collection (GCC) that's included in RHEL and build a simple C++ Hello World application. This tutorial should take less than 12 minutes to complete. Before you begin, you will need a current Red Hat Enterprise Linux 7 workstation or server subscription that allows you to download software and get updates from Red Hat...

A while ago, I wrote a fairly long post attempting to shed some light on a few things you can do in your JavaScript classes to enforce the concept of data encapsulation - or data "hiding". But as soon as I posted it, I got some flak from a friend who is a Clojure programmer. His first comment about the article was this. Mutability and data encapsulation are fundamentally at odds. Eventually, he walked that back - but only just...

To get started with FIS 2.0, for people who are just getting to know the technology, here is how I interpret it. Basically, it's divided into two aspects. 1. Integration development: FIS uses Apache Camel as the core technology that creates, orchestrates, and composes microservices into a super lightweight thin integration layer, and becomes the API provider and service orchestrator through exposing RESTful or messaging service endpoints. And you can choose to either package and run it with Spring-Boot or...

It's been a while since Red Hat released version 3.3 of OpenShift Container Platform, this version is full of features. One of my favorites is the support for Pipelines (Tech Preview for now) that lets you easily integrate Jenkins builds on your OpenShift (Origin) Platform. OpenShift Pipelines OpenShift Pipelines are based on the Jenkins Pipeline plugin. ( https://jenkins.io/solutions/pipeline/) Integrating Jenkins Pipelines into OpenShift unlocks all the features for the CI/CD world enabling its users to easily manage repeatable tasks in...

And here we go for another episode of the series: "Unlock your [….] data with Red Hat JBoss Data Virtualization." Through this blog series, we will look at how to connect Red Hat JBoss Data Virtualization (JDV) to different and heterogeneous data sources. JDV is a lean, virtual data integration solution that unlocks trapped data and delivers it as easily consumable, unified, and actionable information. It makes data spread across physically diverse systems — such as multiple databases, XML files...

With the release of Red Hat JBoss Developer Studio 10.2, it is now possible to install Red Hat JBoss Developer Studio as an RPM. It is available as a tech preview. The purpose of this article is to describe the steps you should follow in order to install Red Hat JBoss Developer Studio. Red Hat Software Collections JBoss Developer Studio RPM relies on Red Hat Software Collections. You don’t need to install Red Hat Software Collections but you need to...

Version 0.0.8 of the Java extension for Visual Studio Code (a.k.a. vscode-java) has been unleashed onto the world. It's available in the Visual Studio Code Marketplace and can be found and installed directly from within Code. Highlights of this release can be seen in this screencast: Gradle Support vscode-java finally provides basic Gradle support for Java projects. Basically, you just need to open a folder containing a build.gradle file in its root and wait for the Java support to kick...

Get started building Ruby applications in docker formatted containers using the Red Hat Container Development CDK (CDK) 2. Introduction and Prerequisites In this tutorial, you will learn how to start building Ruby applications in docker formatted containers using the Red Hat Container Development Kit (CDK) 2 on Red Hat Enterprise Linux. You need to have CDK 2 installed and should have downloaded the Red Hat Enterprise Linux vagrant box for your system. See the CDK 2 Installation Guide for more...

Get started building Python applications in docker formatted containers using the Red Hat Container Development CDK (CDK) 2 Introduction and Prerequisites In this tutorial, you will learn how to start building Python 3 applications in docker formatted containers using the Red Hat Container Development Kit (CDK) 2 on Red Hat Enterprise Linux. You need to have CDK 2 installed and should have downloaded the Red Hat Enterprise Linux vagrant box for your system. See the CDK 2 Installation Guide for...

Get started building PHP applications in docker formatted containers using the Red Hat Container Development CDK (CDK) 2. Introduction and Prerequisites In this tutorial, you will learn how to start building PHP applications in docker formatted containers using the Red Hat Container Development Kit (CDK) 2 on Red Hat Enterprise Linux. You need to have CDK 2 installed and should have downloaded the Red Hat Enterprise Linux vagrant box for your system. See the CDK 2 Installation Guide for more...

Get started building Node.js applications in docker formatted containers using the Red Hat Container Development CDK (CDK) 2. Just 3 easy steps. Introduction and Prerequisites In this tutorial, you will learn how to start building Node.js applications in docker formatted containers using the Red Hat Container Development Kit (CDK) 2 on Red Hat Enterprise Linux. You need to have CDK 2 installed and should have downloaded the Red Hat Enterprise Linux vagrant box for your system. See the CDK 2...

As the interest in container application development continues to grow, so does our expansion of development tools and features. Today, Red Hat released new versions of the following: Red Hat JBoss Developer Studio 10.2 Red Hat Container Development kit 2.3 Red Hat Development Suite 1.2 Here's a listing of the new features: Here are some of the new features in JBDS 10.2: Forge Tools. New Menu in Forge Console view to trigger the Command Selection Dialog. Common namespace is now...

Introduction Enabling SSL/TLS in a Fabric is slightly more complex than securing a jetty in a standalone Karaf container. In the following article, we are providing feedback on the overall process. For clarity and simplification, the article will be divided into two parts. Part1: The Management Console Part2: Securing Web Service:including gateway-http For the purpose of this PoC, the following environment will be used. Environment Host fabric1.example.com (192.168.56.1), localhost MacOS Host fabric2.example.com (192.168.56.101), RHEL 7.2 Virtual Box VM Host fabric3.example.com...

You’ve heard that .NET has gone open source. You’ve also heard that it has gone cross-platform. And you’ve even heard that Red Hat is shipping a supported version of .NET on Red Hat Enterprise Linux. So maybe you are thinking to yourself, “wow, this is fantastic! I’m going to copy these EXEs and DLLs of my .NET application over to my Red Hat machine and run them!” Well, unfortunately, it’s not going to be quite that easy. At least not...

Welcome back to a new episode of the series: "Unlock your [….] data with Red Hat JBoss Data Virtualization." Through this blog series, we will look at how to connect Red Hat JBoss Data Virtualization (JDV) to different and heterogenous data sources. JDV is a lean, virtual data integration solution that unlocks trapped data and delivers it as easily consumable, unified, and actionable information. It makes data spread across physically diverse systems — such as multiple databases, XML files, and...

You may have seen (or maybe missed) that in 2017, DevNation will be folded into Red Hat Summit 2017. The CFP deadline has been pushed back to December 16, so I look forward to seeing your submissions for application development! Speakers: submit your Application Development proposals today! Submit your proposal on the Summit CFP site [1] and tag it with the primary theme of Application Development. We’re interested in advanced technical topics of all developer-related topics, but especially looking for...

Introduction Kompose is a tool to convert from higher level abstractions of application definitions into more detailed Kubernetes artifacts. These artifacts can then be used to bring up the application in a Kubernetes cluster. What higher level application abstraction should kompose use? One of the most popular application definition formats for developers is the docker-compose.yml format for use with docker-compose that communicates with the docker daemon to bring up the application. Since this format has gained some traction we decided...

Fedora users seeking help on installing Container Development Kit (CDK), here is how you can install CDK 2.2 on your Fedora 24. These same steps can be used for CDK 2.3 too. CDK provides a container development environment, to build production-grade applications, for use on OpenShift. The installation of CDK 2.2 on Fedora essentially involves the following stages: Setting up your virtualization environment You need to first install the virtualization software, in this case, KVM/libvirt, and then proceed to install...

The Kubernetes client package for Go provides developers with a vast range of functions to access data and resources in a cluster. Taking advantage of its capabilities can allow the opportunity to build powerful controllers, monitoring and managing your cluster, beyond the scope of what is offered by stock OpenShift or Kubernetes setups. For example, the PodInterface allows you to list, update, delete, or get specific pods either by namespace or across all namespaces. This interface is complemented by similar...