Write your first simple Kubernetes Operator

Ask your human Operator to do all the complicated ugly work for you!

… or write your own Operator, if you are the expert and you know how the complicated ugly work, works in detail. This is how you can make sure it works in the future 😉

For those of you who don’t know Kubernetes Operators in combination with Ansible, let me just give you a very simplified description from my point of view:

Even a student with minimal knowledge of Kubernetes should be able to install a highly complex container-based application on top of Kubernetes or OpenShift. Eliminate the manual interaction effort as much as possible to deploy, run, and maintain your containerized application on Kubernetes or OpenShift with your Operator implementation.

During my search on the internet, how to build an own custom Kubernetes Operator, I came along to that awesome YouTube video with a talk from Keith Tenzer, he gave in 2020 on the Open Infrastructure Foundation Summit called “Building Kubernetes Operators with the Operator Framework and Ansible”.

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Getting started with continuous integration and delivery (CI/CD) using Tekton and an Open Toolchain on IBM Cloud (Part 1/3)

In this blog post I want to highlight that I created a 10 min detailed overview YouTube video, which is the first video of a video series related to the hands-on tutorial “Develop a Kubernetes app by using Tekton delivery pipelines“. In that tutorial video series, we setup an easy consumable Tekton pipeline in a toolchain using developer tools for think, code and deploy in context of continuous delivery. We deploy a containerized web application to a free Kubernetes Cluster on IBM Cloud.

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IBM Cloud Container Registry is Deprecating Container Builds

In this blog post I want to point out that I noticed that the IBM Cloud Container Registry is deprecating container builds.

If you don’t know the IBM Cloud Container Registry here are some useful features:

  • Threat insights – It provides advanced capabilities like vulnerability scanning, deployment policy enforcement, and comprehensive risk assessment and prioritization”
  • Integration – It ‘s the IBM Cloud preferred image registry; pre-integrated with the IBM Cloud Kubernetes Service for the DevOps workflow using IBM Open Toolchain or existing a CI/CD toolset.”
  • Security – It’s integrated with Identity and Access Manager and Resource Groups to provide fine-grained access controls to users within the IBM Cloud account.”
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Get your Java microservice up and running

In this blog post I want to highlight the news, that our tutorial Get your Java Microservice up and running is now available on IBM Developer.

After you complete this workshop, you will:

  • Understand the Java implementation of a cloud-native RESTful Java microservice built on the open technologies Eclipse MicroProfile and Open Liberty
  • Be able to describe how to effectively build and run a microservice on a local machine in a container
  • Understands the steps needed to deploy a single microservice to Kubernetes and on the IBM Cloud Kubernetes service

I hope this was useful for you and let’s see what’s next?



#Java, #Microprofile, #Kubernetes, #Docker, #IBMCloud

Get your Java Microservice up and running!

In this blog post I want to highlight the hands-on workshop “Get your Java Microservice up and running!“, now available in GitBook . That workshop demonstrates how to build a Microservice with Java and how to deploy the Microservice Kubernetes on the IBM Cloud. The Microservice in this workshop is kept as simple as possible, so that it can be used as a starting point for other Microservices. The Microservice has been developed with Java EE, OpenLiberty and Eclipse MicroProfile.

The workshop is a part of the open source project Cloud Native Starter, which contains sample code that demonstrates how to get started with cloud-native applications and Microservice based architectures.
The Workshop has a related badge called Cloud Native Starter Level 1. This badge is available at Acclaim. In the related quiz you can verify your knowledge you achieved in the workshop.

The gif below show some major steps in the hands-on workshop. You will develop locally a Java Microservice and deploy that Microservice to a free Kubernetes Cluster on IBM Cloud.

microservice docker java kubernetes deployment

I hope this was useful for you and let’s see what’s next?



#microprofile, #java, #ibmcloud, #openliberty, #microservices, #kubernetes