Red Hat OpenShift Container Platform

Red Hat JBoss Data Virtualization (JDV) is a lean, virtual data integration solution that unlocks trapped data and delivers it as easily consumable, unified, and actionable information. JDV makes data spread across physically diverse systems such as multiple databases, XML files, and Hadoop systems appear as a set of tables in a local database. When deployed on OpenShift, JDV enables: Service enabling your data Bringing data from outside to inside the PaaS Breaking up monolithic data sources virtually for a...

As I tried to create queues/topics installed within OpenShift 3.2 and accessible to external clients, I found that there were more things assumed about the process than not. So I decided to share my steps with others. The only supported template for this scenario is via ssl transport with persistence Big Assumptions: That OpenShift is installed and working Persistent volumes have been created in OpenShift to use You must have a persistent store (i.e. a PV must be set up)...

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...

We are happy to announce the availability of Red Hat JBoss Data Virtualization (JDV) 6.3 image running on OpenShift. JDV is a lean, virtual data integration solution that unlocks trapped data and delivers it as easily consumable, unified, and actionable information. JDV makes data spread across physically diverse systems such as multiple databases, XML files, and Hadoop systems appear as a set of tables in a local database. When deployed on OpenShift, JDV enables: Service enabling your data Bringing data...

If you want to use secret configuration which you don't want to store the code repository during developing ASP.NET Core app, what will you do? ASP.NET Core provides Secret Manager tool. Then how about developing on OpenShift? I'd like to talk about Secret Manager tool and working OpenShift secrets for ASP.NET Core in this blog. Secret Manager tool Let's try to use following the document. At first, make ASP.NET Core web project. Then add Microsoft.Extensions.SecretManager.Tools, Microsoft.Extensions.Configuration.UserSecrets and userSecretsId to the...

One of the main principles of microservices is to be independently deployable. As a consequence, Microservices development and operation tend to be much more complex than a Monolith because of their distributed nature --- if your IT team has not moved out yet from its silos and has adopted DevOps practices, the operations team will not really understand why they have to deploy hundreds of independent software pieces in opposite to the "good old monolith". "You need a mature operations...

Microservices are currently enjoying immense popularity. It is rare to find a tech conference without at least a few mentions of them in corridor conversations or titles of talks, and for good reason: microservices can provide a path to better, more maintainable, higher quality software delivered faster. What's not to love? Of course there are the "negatives" and details in the implementation of microservices that can trip up even the most seasoned architect-developer, but at the same time we are...

Che on OpenShift is coming and you can get a peek into how it works at CheConf with our very own Mario Loriedo. Mario will joining CheConf at 3pm on November 14, 2016 to show you how you can setup and deploy Che on Red Hat OpenShift. In his presentation learn: Cloud development with OpenShift and Che Running Che on OpenShift Service Provider Interface Get the details at http://www.eclipse.org/che/checonf/sessions.html#mario.

The world is moving to microservices, where applications are composed of a complex topology of components, orchestrated into a coordinated topology. Microservices have become increasingly popular as they increase business agility and reduce the time for changes to be made. On top of this, containers make it easier for organizations to adopt microservices. Increasingly, containers are the runtimes used for composition, and many excellent solutions have been developed to handle container orchestration such as: Kubernetes/OpenShift; Mesos and its many frameworks...

Why? Recently, I have been following the Hyperledger project, and Fabric in particular, with fair bit of interest. The current deployment process 1 for Fabric Starter Kit uses Docker Swarm. Kubernetes is a leading platform for automating deployment, scaling, and operations of containerised applications. Using Kubernetes instead of Docker Swarm would allow Hyperledger Fabric to leverage features like: Automatic binpacking Horizontal scaling Automated rollouts and rollbacks Storage orchestration Self-healing Service discovery and load balancing Secret and configuration management Batch execution...

Welcome to the tenth and final 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. You’ll need the docker service and the oc utility to follow along in this post; for instructions check out Part 5: Upping Our (Cloud) Game. Wow, we’ve come a...

Editor's note: Raffaele Spazzoli is an Architect with Red Hat Consulting's PaaS and DevOps Practice. This blog post reflects his experience working for Key Bank prior to joining Red Hat. A recount of the journey from three-months, to one-week release cycle-time. This is the journey of KeyBank, a super-regional bank, from quarterly deployments to production to weekly deployments to production. In the process we adopted all open source software migrating from WebSphere to Tomcat and adopting OpenShift as our private...

Welcome to the ninth 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. You’ll need the docker service and the oc utility to follow along in this post; for instructions check out Part 5: Upping Our (Cloud) Game. In Part 8 we learned how...

It's been a while since our last deep-dive into the Docker project graph driver performance. Over two years, in fact! In that time, Red Hat engineers have made major strides in improving container storage: Introduced the docker-storage-setup package to help make configuring devicemapper-based storage a snap. Introduced full support for overlay FS in RHEL7.2+ when used with containers Introduced overlay2 as Tech Preview mode Gotten SELinux support to both overlay and overlay2 merged into upstream kernel 4.9 Added a warning...

OpenShift gives its administrators the ability to manage a set of security context constraints (SCCs) for limiting and securing their cluster. Security context constraints allow administrators to control permissions for pods using the CLI. SCCs allow an administrator to control the following: Running of privileged containers. Capabilities a container can request to be added. Use of host directories as volumes. The SELinux context of the container. The user ID. The use of host namespaces and networking. Allocating an 'FSGroup' that...

Welcome to the eighth 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. You’ll need the docker service and the oc utility to follow along in this post; for instructions check out Part 5: Upping Our (Cloud) Game. In Part 7 we learned how...

This post describes how to manually integrate Red Hat OpenStack 9 (RHOSP9) Cinder service with multiple pre-existing external Red Hat Ceph Storage 2 (RHCS2) clusters. The final configuration goals are to have Cinder configuration with multiple storage backends and support for creating volumes in either backend. This post will not cover the initial deployment of OpenStack Cinder or the Ceph clusters. Configuration Rational There are multiple scenarios where RHOSP9 Cinder will need to be configure to multiple RHCS2 storage clusters...

Welcome to the seventh 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. You’ll need the docker service and the oc utility to follow along in this post; for instructions check out Part 5: Upping Our (Cloud) Game. In Part 6 of our adventure...

Welcome to the sixth 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. You’ll need the docker service and the oc utility to follow along in this post; for instructions check out Part 5: Upping Our (Cloud) Game. We’ve been on a pretty amazing...

Developers have a lot of choices when deciding how to start using OpenShift and Kubernetes locally --- without going through a native OS installation. We all need to have a development environment as close as possible to production (to prevent defects caused by environmental differences), but ideally we need to do this without spending a lot of time to setup and a lot of computational resources (cpu, memory and disk space). This post will present four alternatives to create a...

Welcome to the fifth 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. The previous posts of this series have focused on how to package ZNC in a way that exposes run-time configurability into the immutable world of containers. But forget about ZNC -...

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...

Red Hat Developers and author N. Harrison Ripps have just released the first pieces of a ten-part series ("That app you love") in which Harrison describes the process of deploying an application using containers into a clustered environment on the cloud. Using the ZRC IRC client as a sample application, Harrison demonstrates each step in the process of containerizing software, dealing with issues like statelessness, security, and robustness that are typically architectural hurdles for most development teams moving to a...