Red Hat OpenShift Container Platform

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...

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...

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Creating, associating, and using a JBoss Data Grid (with persistence) with a MicroProfile-based microservice In this blog post, I will cover how to create, populate, and associate a JBoss Data Grid (with persistence using a Postgresql database) to your MicroProfile-based microservice. I will also cover how to modify the microservice so that it makes use of JBoss Data Grid (JDG). This is the continuation of the “A MicroProfile-based microservice on OpenShift Container Platform - Part 2; Creating, associating and using...

Over at the Openshift and Che land, we deal with YAML files for deploying our applications regularly. Unfortunately, the tooling to support editing of these files was not up to our expectations. As we are also tooling developers, we have decided to take matters at hand and implement a language server for kubernetes syntax. An effort which mostly Josh Pinkney and I have worked on for the last few months. As we have progressed with our implementation, we have realized...

This blog is for those who does not know about socket and it's types and in this there is only for basic ideas about the socket and its types

Cloud readiness - This is a transcript of a session I gave at EMEA Red Hat Tech Exchange 2017, a gathering of all Red Hat solution architects and consultants across EMEA. It is

Making your images consumable - This is a transcript of a session I gave at EMEA Red Hat Tech Exchange 2017, a gathering of all Red Hat solution architects and consultants across EMEA. It is

Installation of AWX (Ansible Tower) on top of OpenShift, Set a dynamic inventory to access the servers from AWS

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...

Container Images for OpenShift – Part 2: This is a transcript of a session I gave at EMEA Red Hat Tech Exchange 2017, a gathering of all Red Hat solution architects and consultants across EMEA. It is

Container Images for OpenShift - Part 1: This is a transcript of a session I gave at EMEA Red Hat Tech Exchange 2017, a gathering of all Red Hat solution architects and consultants across EMEA. It is

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...

We hear about Microservices a lot nowadays. Its implementation requires us to deal with new challenges. A key question that comes with using microservices is how to handle interactions in an asynchronous way. The answer to that is messaging. Among other things, messaging features the following: Loose coupling since it decouples client from services. Improved availability since the message broker buffers messages until the consumer is able to process them. Supports a variety of communication patterns including request/reply, notifications, request/async...

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According to Wikipedia, entropy is the randomness collected by an operating system or application for use in cryptography or other uses that require random data. Entropy is often overlooked, misconfigured or forgotten and it can originate in sporadic errors whether it can be timeouts, refused connections, etc. Such errors are difficult to debug as the errors happen only when there is not enough entropy available. This article tries to explain briefly how to check if this can be a problem...

In the Part-I of the series, we saw how we used ConfigMaps in configuring spring boot application Kubernetes. ConfigMaps are OK when we use simple configuration data that do not contain sensitive information. When using sensitive data like API Keys, passwords etc. Secrets are the preferred and recommended way. In this second part of the series, we will explore configuring spring boot on kubernetes with Secrets. The sources for this blog post are available in my github repo. Setup You...

ConfigMaps is the Kubernetes counterpart of the Spring Boot externalized configuration. ConfigMaps is a simple key/value store, which can store simple values to files. In this post "Configuring Spring Boot on Kubernetes with ConfigMap", we will see how to use ConfigMaps to externalize the application configuration. One of the ways configuring the spring boot application on kubernetes is to use ConfigMaps. ConfigMaps is a way to decouple the application specific artifacts from the container image, thereby enabling better portability and...

When the developers plan to deploy Spring Boot application on Kubernetes, the first question comes to a spring developer's mind is "Can I use Spring Config server?" Spring Config server is a de-facto way of doing centralized configuration of a distributed application. Yes, we can use Spring Config server, but let’s think of some constraints that Spring Config server can have in a typical Enterprise deployment: No access to the internet from production. This means I can’t use the default...

The Azure Openshift 3.6 reference architecture now automatically deploys and integrates SSO. The reference architecture, which is available in a scalable full high-availability configuration and a single vm for trials is part of openshift-ansible-contrib git repo. Red Hat Single Sign-On (RH-SSO) is based on Keycloak project and enables web applications by providing Web single sign-on (SSO) capabilities based on popular standards such as SAML 2.0, OpenID Connect and OAuth 2.0. This makes it easy to configure one or more authentication...

Introduction I'm working on the upstream fabric8-wit project of openshift.io. In this Go project, we embrace testing as best as we can in order to deliver a stable component. Testing acts as our safety net to allow for fast-paced feature development. This blog post is about our recent change in our testing strategy. It is not as boring as it might sound at first. ;-) Problem description We've changed out the data-model quite a lot and it took us a...

For many organizations, a big part of DevOps’ appeal is software automation using infrastructure-as-code techniques. This book presents developers, architects, and infra-ops engineers with a more practical option. You’ll learn how a container-centric approach from OpenShift® can help your team deliver quality software through a self-service view of IT infrastructure.

Are you attending RHTE (Red Hat Tech Exchange) APAC, interested in IoT and like to tinker with real hardware? Come join us for an evening of fun at CodeStarter IoT hackathon on Thursday, Sep 7th. The use case for this CodeStarter emulates Industry 4.0 smart factory scenario. This end-to-end IoT solution will allow the participants to interact with: Raspberry Pi connected to sensors/actuators to emulate the factory environment. Java/OSGi based middleware ( Eclipse Kura) for simplified access to underlying device...

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Creating, associating, and using a database with a MicroProfile-based microservice In this blog post, I will cover how to create, populate, and associate a database to your MicroProfile-based microservice. I will also cover how to modify your microservice so that it makes use of the database. This is the continuation of the " A MicroProfile-based microservice on OpenShift Container Platform - Part 1; Creating a simple MicroProfile-based microservice and deploying it to OpenShift Container Platform" blog post and it assumes...

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Creating a simple MicroProfile-based microservice and deploying it to OpenShift Container Platform Eclipse MicroProfile is an open source specification for Enterprise Java microservices. It is a community of individuals, vendors, and organizations collaborating and working on innovative microservices patterns for Enterprise Java within the context of modern development, architectures, and underlying infrastructures, e.g. health checks, fault tolerance, metrics, and security propagation within a cloud environment. Its first release was based on 3 Java EE JSRs/libraries/APIs, but this does not necessarily...

OpenShift Container Platform (OCP) offers many different types of persistent storage. Persistent storage ensures that data should be insistent between builds and container migrations. When choosing a persistent storage backend to ensure that the backend supports the scaling, speed, dynamic provisioning, RWX/RWO support and redundancy that the project requires. Container-Ready Storage (CRS), or native Gluster for OCP, is defined by the concept of persistent volumes, which are OCP created objects that allow storage to be defined and then used by...

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A lot of employees work on customers' sites and need to engage people every single day. Mobile Internet isn't something broadly reliable, which makes demonstrations of cloud products and complex solutions undoable. After thinking about it for some time, I finally got something good, which I'd like to share with you in this post. The Requirements As stated, mobile connection isn't something enjoyable for people always on move. This situation requires an entirely offline solution to get the job done...

Red Hat OpenShift Container Platform

First steps in integration of Windows and Linux Containers in OpenShift

Remote debug your ASP.NET Core container on OpenShift with Visual Studio Code

A MicroProfile-based microservice on OpenShift Container Platform - Part 3

YAML Language Server and the Extension for VS Code

What is a Socket?

Container Images for OpenShift – Part 4: Cloud readiness

Container Images for OpenShift – Part 3: Making your images consumable

Guide to starting to use AWX, the upstream of Red Hat Ansible Tower, on top of OpenShift

How to quick install Red Hat Mobile on Openshift

Container Images for OpenShift – Part 2: Structuring your images

Container Images for OpenShift - Part 1: Objectives

Running a NuGet server on OpenShift

JBoss A-MQ on OpenShift Cheat Sheet

Entropy in RHEL based cloud instances

Configuring Spring Boot on Kubernetes with Secrets

Configuring Spring Boot on Kubernetes with ConfigMap

Configuring Spring Boot Application on Kubernetes

Openshift 3.6 Reference Architecture Now Includes SSO

Manage test dependencies with Go

Devops with OpenShift: Cloud Deployments Made Easy

Snag an IoT kit at CodeStarter at RHTE APAC

A MicroProfile-based microservice on OpenShift Container Platform - Part 2

A MicroProfile-based microservice on OpenShift Container Platform - Part 1

Gluster for OpenShift - Part 1: Container-Ready Storage

Openshift on a Nuc shell

Platforms

Build

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