Tag Archives: Kubernetes

In this post I am going to explain how to deploy and scale an Oracle Express database on a multi-node Kubernetes cluster. I am going to use this Docker container by Maxym Bylenko.  I am referring to the container for the Oracle XE 11g because of the following open issue with that for Oracle XE 12c at the time I did the process described ...

The software world moves faster than ever. In order to stay competitive, new software versions need to be rolled out as soon as possible, without disrupting active users. Many enterprises have moved their workloads to Kubernetes, which has been built with production-readiness in mind. However, in order to achieve real zero-downtime with Kubernetes, without breaking or loosing a single in-flight ...

Continuously build, test and monitor your Microservices for optimal performance. Summary Kubernetes and OpenShift are powerful and flexible. They’re also complex to setup, monitor and maintain at scale. Here’s a sneak peek into what we monitor in OpenShift, as well as some hard-earned advice on how our strategy might benefit your own environments. Here at AppDynamics, we build applications for ...

This is a continuation of my experimentation with Knative serving, this time around building a gateway on top of a Knative serving applications. This builds on two of my previous posts – on using Knative to deploy a Spring Boot App and making a service to service call in Knative. Why a Gateway on top of Knative application To explain ...

In a previous post I had covered using Knative’s Serving feature to run a sample Java Application. This post will be go into the steps to deploy two applications, with one application calling the other. Details of the Sample The entire sample is available at my github repository – https://github.com/bijukunjummen/sleuth-webflux-sample. The applications are Spring Boot based. The backend application exposes ...

Discover faster, more efficient performance monitoring with an enterprise APM product learning from your apps. Take the AppDynamics APM Guided Tour! The growth of the AppDynamics Demo Platform resulted in infrastructure that had become larger and more difficult to manage without a real orchestration tool. We will look at the steps involved in converting one of our Docker Compose to ...

An essential step of any CI/CD pipeline is deployment. If the pipeline operates with Docker containers and deploys to K8s clusters then the goal of the deployment step is to deploy a specific Docker image (stored on some container registry) to a specific K8s cluster.  Let’s say there is a VM where this deployment step is being performed. There are a ...

Yesterday, Kubernetes 1.10 was released, adding handfuls of new features to the orchestration platform. You can read the changelog on GitHub. Kubernetes 1.10 and TLS Bootstrapping One big thing in 1.10 is the promotion of TLS bootstrapping to stable, which is taking the spotlight for this release. In short, this update allows a kubelet to join a TLS-secured cluster automatically. ...

Recently, I have been playing a lot with Functions and Project Fn. Eventually, I got to the point where I had to go beyond a playground on my laptop and go to the real wild world. An idea of running Fn on a K8s cluster seemed very attractive to me and I decided to do that somewhere on prem or ...