RHEL

Within Red Hat knowledge sharing and collaboration are important. As a part of that many Red Hatters write books and we get the honor of sharing their knowledge with other developers. We have 7 more books in queue for the coming year and thought we would share the books you can currently download. Learn how to get started with a new technology. Learn why you would want to use new methodologies or technologies. Or just dive in a little deeper...

A few years back (2013-2016) I was working as a C++ Software Development Engineer at Intel on a monolithic product with a backend written in C++ and a web frontend written in Java. The product was shipped complete with hardware and as a VMware image. Internally we kept ISO CD images on a shared server for every released or QA approved version of the product. Built into the product was a very clever issue reporting mechanism that allowed us, developers...

The content of the previous post discussed creating the open-vm-tools container’s Dockerfile and automating its started up via systemd with a unit file. Open-vm-tools as a service might need to start before the docker runtime or even the network stack, this leads us to runc and system containers. If you’ve finished the first article you have a running open-vm-tools Docker container. docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 5428906cd366 open-vm-tools "/bin/sh -c /usr/bin/" 13 seconds ago Up...

Over the past few months, we’ve been building and releasing a variety of technical cheat sheets and we’ve been getting many requests for more. We are working on new cheat sheets every day, ok maybe not weekends, but almost every day. Here are the cheat sheets available today: Linux Commands Cheat Sheet, Advanced Linux Commands Cheat Sheet, Wildfly Swarm Cheat Sheet, Containers Cheat Sheet, MongoDB Cheat Sheet, Kubernetes Cheat Sheet and the Eclipse Vert.x Cheat Sheet. While you wait for...

Before I came to Red Hat, I used to work for a Red Hat partner as a consultant and architect. During that time, I was involved in quite a few situations where I had to help people move from one platform to another, most often from some flavor of Unix to Red Hat Enterprise Linux. As Linux is the de facto standard platform for many development teams, it seemed to make sense to translate some of that experience into a...

Sometimes things are really easy. This is one of those cases. There are only six steps to creating and running your first .NET program on Red Hat Enterprise Linux (RHEL). Install dotnet What's that? You don't have RHEL installed on your Windows PC in a Virtual Machine (VM). That's okay ... I'll wait while you install it. Just follow this video to download and install the Red Hat Development Suite. Okay, now that you have a VM, open PowerShell and...

While validating OpenShift Container Platform on a VMware platform the usage of Atomic OS was also a requirement. In the initial reference architecture, the decision was made to use Red Hat Enterprise Linux as the platform. This platform was then customized and the same packages as in Atomic were installed via Ansible and Red Hat Network. The github repo with those playbooks is here: https://github.com/openshift/openshift-ansible-contrib/tree/master/reference-architecture/vmware-ansible . These playbooks will guide you from start to finish to deploying OCP on VMware...

I came across Linux in 2005, it was Debian. Then followed a love affair with Ubuntu, for which in March 2009 I purchased a netbook Asus EeePC 1000. In 2010, I began to contribute to ALT Linux participating in the “ School Project” and even became a basic256 package maintainer. The last few years my EeePC with Ubuntu peacefully rested deep in my cupboard. Then there was a chance to clean off the dust. There was a task to get...

One of the best features of Visual Studio is the ability to launch and debug an application from within the IDE. This is not an uncommon feature nowadays. When running .NET on Linux, however, you can't use Visual Studio as your IDE. What to do? The answer is Visual Studio Code, a free IDE that will allow you to edit, compile, launch, and debug your application from within your IDE. This post will guide you through this cycle. Note: I'm...

(Probably, a more accurate title would be "The Evolution of a Linux Container Developer") Since .NET now runs on Linux (as well as Windows and macOS), the whole world of Linux containers and microservices has opened up to .NET developers. With a large pool of developers, a long track record of success, and performance numbers that are impressive, .NET offers a great opportunity to expand the world of Linux containers to formerly Windows-centric developers. While it’s tempting to rush in...

This is the first part of a 2 part article, part 2 (End To End Encryption With OpenShift Part 2: Re-encryption) will be authored by Matyas Danter, Sr Consultant with Red Hat, it will be published soon. This article aims to demonstrate use cases for Openshift routes to achieve end-to-end encryption. This is a desirable and sometimes mandated configuration for many verticals, which deal with strict regulations. For example, financial sectors often are extremely careful about their application security standards...

Red Hat Software Collection (RHSCL) 2.3 brings new rh-perl524 collection. It includes Perl 5.24.0, which provides a number of bug fixes and enhancements over the previously released rh-perl520 Software Collection. The details about the changes can be found in 5.22.0 perldelta and 5.24.0 perldelta. The new collection adds package rh-perl524-perl-App-cpanminus, which contains the cpanm utility for getting, extracting, building, and installing modules from the Comprehensive Perl Archive Network (CPAN) repository. RHSCL is distributed as a collection of RPM packages that...

Get started building PHP 5.6 applications in docker containers on Red Hat Enterprise Linux in under 15 minutes. Introduction and Prerequisites In this tutorial, you will learn how to start building PHP 5.6 applications in docker containers on Red Hat Enterprise Linux. In order to build and run containers you will first install docker on your Red Hat Enterprise Linux 7 system. You will use the PHP 5.6 container image from Red Hat Software Collections (RHSCL) 2.2 as the basis...

Get started developing with Ruby on Red Hat Enterprise Linux in under 10 minutes. Introduction and Prerequisites In this tutorial, you will see how to get started with Ruby development on Red Hat Enterprise Linux by creating a simple Hello World application. The tutorial should take five to ten minutes to complete. Before you begin, you will need a current Red Hat Enterprise Linux 6 or 7 workstation or server subscription that allows you to download software and get updates...

Get started building Ruby 2.3 applications in docker containers on Red Hat Enterprise Linux in under 15 minutes. Introduction and Prerequisites In this tutorial, you will learn how to start building Ruby 2.3 applications in docker containers on Red Hat Enterprise Linux. In order to build and run containers, you will first install docker on your Red Hat Enterprise Linux 7 system. You will use the Ruby 2.3 container image from Red Hat Software Collections (RHSCL) 2.2 as the basis...

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...

Get started building Node.js v4 applications in docker containers on Red Hat Enterprise Linux in under 15 minutes. Introduction and Prerequisites In this tutorial, you will learn how to start building Node.js v4 applications in docker containers on Red Hat Enterprise Linux. In order to build and run containers you will first install docker on your Red Hat Enterprise Linux 7 system. You will use the Node.js v4 container image from Red Hat Software Collections (RHSCL) 2.2 as the basis...

Get started developing with Python on Red Hat Enterprise Linux in under 10 minutes. Introduction and Prerequisites In this tutorial, you will see how to get started with Python development on Red Hat Enterprise Linux by creating a simple Hello World application. The tutorial should take 5 to 10 minutes to complete. On Red Hat Enterprise Linux, Python is installed by default. You can skip directly to Hello Word and your first application, or continue reading to learn more about...

Get started developing with Java 8 on Red Hat Enterprise Linux in under 10 minutes. Introduction and Prerequisites In this tutorial, you will see how to get started with Java development on Red Hat Enterprise Linux by creating a simple Hello World application. You will install a Java Development Kit (JDK), and learn what Java packages are available. The whole tutorial should take less than 10 minutes to complete. You will need a Red Hat Enterprise Linux 7 system with...

Get started developing with native PHP on Red Hat Enterprise Linux in under 10 minutes. Introduction and Prerequisites In this tutorial, you will see how to get started with PHP development on Red Hat Enterprise Linux by creating a simple Hello World application. The tutorial should take 5 to 10 minutes to complete. Before you begin, you will need a current Red Hat Enterprise Linux 6 or 7 workstation or server subscription that allows you to download software and get...