Kubernetes

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...

This blog to help my fellow developers who are working on "Docker" and " Kubernetes" simultaneously. Because, they know that Kubernetes runs over docker-engine but there is a catch, that: 1. Containers running on Docker, and 2. Containers running inside of a Kubernetes Pod, are absolutely running isolated, without even knowing each other's existence. But, we are developers, so there are chances where we might come across a situation where we desperately need to let the Docker formatted containers communicate...

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A recent Gartner survey suggests that roughly 50% of the respondents planned to implement continuous delivery and DevOps by year-end 2017 in order to deliver services faster, more often and more reliably. State of DevOps Report by Puppet Labs suggests that high-performing organizations that focus on automation and DevOps are able to reduce their lead-time for delivering a change by a factor of 440 and deliver services 46 times more often. These results have helped to make DevOps adoption a...

Introduction New Relic is an application-monitoring platform that provides in-depth analytics and analysis for applications regardless of the type of environment where they are deployed, or as New Relic put it themselves: “Gain end-to-end visibility across your customer experience, application performance, and dynamic infrastructure with the New Relic Digital Intelligence Platform.” - New Relic You might ask why there’s a use for New Relic’s monitoring capabilities when Red Hat Mobile Application Platform (RHMAP) and OpenShift Container Platform both offer insights...

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...

What is it about? OpenShift has seen a lot of traction with the release of its third version based on Kubernetes a couple of years ago. More and more companies after a thorough evaluation of OpenShift Container Platform (OCP) have built an on-premise or in the cloud PaaS. With the next step, they have started to run their applications on OCP. One of the important aspects of running applications in production is the capacity of quickly restoring services to the...

JBoss Tools 4.5 and Red Hat JBoss Developer Studio 11.0 for Eclipse Oxygen 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 Red Hat Developers 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 Oxygen JEE Bundle since...

This article describes how to create and deploy an FIS 2.0 project using the s2i source workflow. It creates a project from scratch and using github repository one can deploy their FIS 2.0 camel and spring-boot based project to an Openshift environment. Below are the steps in the sequence, which should be followed to deploy the application easily. Firstly, one should setup an Openshift environment with FIS image and templates as per doc https://access.redhat.com/documentation/en-us/red_hat_jboss_fuse/6.3/html-single/fuse_integration_services_2.0_for_openshift/. Create a directory spring-boot somewhere in...

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We have written about Kompose earlier here , when it was as young as 0.1.0. This blog post will showcase where Kompose stands now. Kompose is a tool that converts a Docker Compose file to Kubernetes or OpenShift artifacts. Kompose was originally started as an onboarding tool for Kubernetes users by Skippbox (now part of Bitnami). It went on to receive early contributions from both Google and Red Hat. Kompose has graduated from the Kubernetes Incubator, we reached the epic...

Hi, Everybody! Today I want to introduce you to some features of OpenShift 3.6 while giving you the chance to have a hands-on experience with the Release Candidate. First of all: It's a Release Candidate and the features I'll show you are marked as Tech Preview, so use them for testing purpose ONLY! We cannot use Minishift just because there is no Minishift updated yet. Anyway, I'll show how could use its base iso-image. I don't want to use 'oc...

Integration is still around but in a different form. So, what does modern integration look like? Looking at how agile scrum has taken over traditional waterfall development framework, by enabling shorter delivery cycles, faster feedback, and having the flexibility to rapidly adapt to changes. I believe it’s time for traditional integration to be agile again. By breaking up traditional ESB into distributed microservices. A little recap of what should be in Agile integration: Distributed Integration Lightweight, support distributed deployment Pattern...

EDI, or Electronic Data Interchange, has always been a challenging domain to support for organizations. As EDI standards cover a large range of industries, from supply chain to medical to financial services (FSI), the standards rapidly evolve and change over time, thus requiring constant maintenance. The sheer cost of maintaining standards is high, not only for organizations but also for EDI software vendors who struggle to keep up. The expensive fees paid to standards organizations and rapidly evolving releases are...

This article will show how OpenTracing instrumentation can be used to collect Application Metrics, in addition to (but independent from) reported tracing data, from services deployed within Kubernetes. These Application Metrics can then be displayed in your monitoring dashboard and used to trigger alerts. THE EXAMPLE APPLICATION In a recent article, we showed how a Spring Boot application could easily be instrumented using OpenTracing. The example we are going to use in this article uses the same approach to create...

Analytics and Data Science on OpenShift with Apache Spark, by Will Benton

This lightning talk was delivered at Red Hat Summit 2017.

Charlotte delivered this lightning talk at Red Hat Summit 2017.

Rich delivered this lightning talk at Red Hat Summit 2017.

Kubernetes

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

Connecting Kubernetes and Docker

How Kubernetes Helps to Enable DevOps

Using New Relic in Red Hat Mobile Node.js Applications

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

Troubleshooting Java applications on OpenShift

Announcing Red Hat Developer Studio 11.0.0.GA and JBoss Tools 4.5.0.Final for Eclipse Oxygen

How to run FIS 2.0 application using source S2I deployment procedure

Getting started with Kompose

OpenShift 3.6 - Release Candidate (A Hands-On)

Reference Architecture for Agile Integration

EDI Transformations with Fuse Integration Services (FIS)

Using OpenTracing with Jaeger to collect Application Metrics in Kubernetes

Analytics and Data Science on OpenShift with Apache Spark, by Will Benton

WildFly Swarm on OpenShift, by Ken Finnigan

Quickly Deploy a ASP.NET App on OpenShift, by Charlotte Ellett

Quick tour of JBoss #CloudNative Java App Dev Options, by Rich Naszcyniec

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