Category: Platform Technology
In this article, you can read more about the Quarkus code guide I tried out, related to the following topic: The ability to automatically generate Kubernetes resources by Quarkus …
Kubernetes is a popular platform to run and manage containerized applications. A CI/CD solution is often needed but not always provided. You might need to set this up for …
In this article, you can read more about a Quarkus code guide I tried out, related to the following topic: Packaging the native executable in a container In a …
OpenEBS provides a Kubernetes native distributed storage solution which is friendly on developers and administrators. It is completely open source and part of the CNCF. Previously I wrote about …
There are various options to install a production-like Kubernetes distribution on your laptop. Previously I tried out using the Canonical stack (Juju, MAAS, Charmed Kubernetes) for this. This worked nicely but …
Introduction We are in production with our shop example . We’d like to get some statistics about our implementation: how often are the Lambda functions called? How fast are …
Introduction Our shop example is now in production, wohoo!!! When you are using our example program in production, you might see that some sales are updated multiple times in …
Introduction When you follow along in this series , you might have been irritated by the amount of work to test your functions. It isn’t a problem to test …
As a developer I wanted to experiment with Kubernetes environments which approximate production deployments. In order to do that I wanted a distributed storage solution and chose OpenEBS. Mainly …
Introduction In the last six blogs , I showed you an application that used AWS to process the sales from a cashing machine. This series continues with tests for …
Coming to this solution was a journey. I was looking for a Kubernetes installation which was easy to deploy and cleanup on my own laptop (I didn’t want to …
Introduction You might have noticed that we skipped the API Gateway up to now . I will write two blogs about the API Gateway. In this one, we follow …
My customer needed to migrate to a new set of datacenters, and while other services were able to “lift and shift”, the Oracle RAC database servers had to be …
I recently wrote an article to introduce Windows Sandbox. I explained how the Sandbox can have folders mapped from the host, have network interactions with the host (and the …
Kubernetes is a popular container orchestration platform. As a developer understanding the environment in which your application is going to run is important since this can help you use …
Windows Sandbox to me is a light weight Windows 10 virtual machine that I can quickly start and stop and use to install and run programs. The Windows Sandbox …
This article tells you how to access the Kubernetes Dashboard on top of an Oracle Cloud Infrastructure OKE Cluster Instance from a browser – without locally installing kubectl. This …
Last week, I published a blog about implementing a PXE server . Today I’ll show how kickstart/anaconda files can be used to deploy a server. I will use the …
What is PXE? PXE (Preboot eXecution Environment) is a method of deploying an operating system to a computer over the network. I think it’s great: you don’t need to …
Developing Linux Shell Scripts is just not the same as programming in modern programming language. At least to me, it still feels novel and at times a bit weird. …
Like so many colleagues and fellow developers around the world, the latest Windows Update also messed up my machine’s ability to successfully run Oracle Virtual Box. When running vagrant …
The easiest way I knew for running a local Kubernetes cluster was minikube. It installs like a breeze and creates a fresh clean cluster with minimal effort on my …
I am running an Ubuntu VM on Virtual Box. A guest running inside a host system. I am getting quite annoyed with Ubuntu locking the screen quite aggressively. Since …
Starting with a vanilla Windows 10 environment, it took just a few simple steps to get going with Linux on my Windows machine in the Windows Subsystem for Linux …
or The Findings of an Failed Enterprise Manager Upgrade to OEM13.3 When Oracle Enterprise Manager Cloud Control 13.3 (here just called EM 13.3) came available I read the upgrade …
You might encounter a situation where you want to fork a script during execution. For example if the amount of forks is dependent on user input or another specific …
A while ago I was reviewing the metric extensions of our Enterprise Manager Cloud Control 13.2.0.0, we use to administer a couple of hundred databases. All acceptance and production …
All too often I found myself editing Kubernetes resource definitions in the Kubernetes Dashboard. Modifying for example the type of a service. Typically I would git clone yaml files, …
I frequently want to demonstrate the working of Apache Kafka and/or provide colleagues and other audiences with an environment for a workshop that involves Apache Kafka. I have been …
Three services have been deployed to my Kubernetes cluster running on a public cloud environment. These services expose port for three underlying Pods and six or so containers. The …
In a previous blog post I wrote about running Minikube on Windows. I ended with the suggestion that getting Minikube working might be much easier on Linux. Thus I …
Oracle Enterprise Manager Cloud Control 13c provides the Add Standby Database wizard to create a broker configuration that includes a primary database and one or more standby database. This …
For Weblogic administrators and application devolopers, it may be desirable to view the JVM metrics from a managed server in OEM (CloudControl) and Java Mission Control. It is also …
An important part of enabling optimal use of SaaS applications is integrating various functions in said applications. Events in one application need to have an effect in others. From …
In order to compare the performance of different JDKs for reactive Spring Boot services, I made a setup in which a Spring Boot application is wrapped in a Docker …
OAuth2 is a popular authentication framework. As a service provider it is thus common to provide support for OAuth2. How can you do this on a plain WebLogic Server …
InfluxDB isn’t natively supported on Azure. This blog post will teach you how to deploy InfluxDB (or any other database) in a VM with a managed disk on …
Primarily for my personal reference: this article provides instructions on running a Docker container image as a Kubernetes Deployment plus Service. It compares the Docker run command with the …
TL;DR: • Using GraalVM Java applications can be compiled into native standalone executables (will be demonstrated). • Native executables of small Java programs startup blazingly fast, use considerably less …
Docker provides different networking options. When using the Docker host networking, you don’t have the option to create port mappings. When using images like library/httpd:2.4, you don’t have the …
