Category: Platform Technology
Many systems undergo routine maintenance, causing planned downtime usually outside regular working hours, often unnoticed by users. However critical systems can’t afford any downtime due to potential catastrophic consequences, …
Previously, for a TypeScript training, I needed an environment with Visual Studio Code and Node.js (a JavaScript runtime). In a previous article, I shared with you the steps I …
Introduction A few weeks ago I published a blog about secret rotation , I used the default Lambda functions for single user and multi users that are maintained by …
Platys is a tool created by Guido Schmutz, architect and data specialist at Accenture and frequent teacher at various universities. In order to be able to quickly create an …
You can customize the OpenShift Container Platform web console to set a custom logo, product name, links, notifications, and command line downloads. This is especially helpful if you need …
Some of the data used by Terraform to create cloud resources is sensitive and should not be stored in plain text in source code repositories. Examples are passwords, client …
This article describes how a Terraform plan can read configuration data at plan and application time from local or remote JSON documents to provide dynamic, easily and centrally maintainable …
Container Instances on Oracle Cloud Infrastructure are VM based environments that can be leveraged as “serverless” container runtimes. Once a container instance has been defined – which is a …
A Service Mesh can provide many facilities regarding traffic management between microservices – from simple routing and load balancing, producing telemetry to applying complex routing logic and security policies. …
Recently the OpenTelemetry project launched a demo application that demonstrates many aspects of instrumentation, metrics and trace gathering, providing insight across multi-service, multi-technology application stacks and in general how …
Two colleagues wanted to try out Kubernetes and more specifically deployment of an application on Kubernetes that was not entirely trivial. One that consists of at least two Pods …
A conference such as Devoxx is a great opportunity to get inspired into trying out tools and technologies that may not or only be vaguely be known as they …
For a demo, I needed an environment with Minikube, using the Podman driver as an alternative container runtime to the Docker driver. In my previous article, I shared with …
For a demo, I needed an environment with Minikube, using the Podman driver as an alternative container runtime to the Docker driver. Lucky for me, I had the configuration …
Running “docker compose” in a VM on Oracle Cloud Infrastructure is perhaps not the ideal way to go – which probably would be OKE (Kubernetes) in order to benefit …
Last week I passed for my RHCSA exam (EX200) . While I was studying for the exam, I asked myself which parts of this exam are still relevant when …
How hard can it be – to create the smallest possible container image to run a Go application? It is not hard to create a container image that contains …
How to be prepared for a black swan scenario?
I’ve used Vagrant since 2015 in combination with Virtualbox for creating development machines. Recently however I’m experiencing more issues with Virtualbox. For example CPUs getting stuck when assigning multiple …
One of the most exciting frameworks I have ran into into recent years is Dapr (dapr.io) – distributed application runtime. Dapr is a cross technology runtime framework that supports …
For many of my recent activities, I have not worked with or even on (knowingly at least) Kubernetes. So for many months I have not touched my OKE cluster …
In this blog I will explain how to generate static HTML pages from your projects Pydoc (docstring) comments with Sphinx. Then we are going to host it in an …
In this blog I will show you how to run a Jenkins agent that can use chrome from a docker container. The Dockerfile and docker-compose.yml file are explained in …
Oracle VM is end-of-life and is, since March 2021, in extended support1. In looking for a replacement hypervisor AMIS has turned to KVM. Oracle itself also uses KVM, albeit …
Introduction Some time ago, I wrote about the new preview feature in Azure Automation Accounts to use Managed Identities . I think that it is useful to migrate to …
Introduction I looked into virtual network peering peering in Azure and I saw something that looked rather strange to me. Let me explain what it was, how VNet peering …
In this blog, I will show how you can use the SAM (Serverless Application Model) to get a presigned upload URL to AWS S3 that can be used exactly …
In this blog I will show how you can use the SAM (Serverless Application Model) to get a presigned upload URL to AWS S3 that can be used exactly …
In this blog, I will show how you can use the SAM (Serverless Application Model) to get a presigned upload URL to AWS S3 that can be used exactly …
In June I wrote a blog series about the AWS Shop Example. In this series, I also wrote about X-Ray . I like X-Ray: you can see how much …
It took me a while, but then this blog series was ready: five blog articles about Windows Failover Clustering and Auto Scaling Groups with one node. I was happy, …
You might have wondered in the second blog of this series , why I mentioned the possibility that the Task Scheduler didn’t start after a reboot in the “on-premise” …
Introduction If you follow along in this blog series , I can imagine that if you deployed the CloudFormation scripts, that you think “wow, how does it work”. In …
Introduction In this series, I will look at the migration from on-premise Windows Failover Clusters to AWS. What is the difference in recovery times between the application on-premise, the …
In the organization I’m currently working for, the OS-patch schedule depends on PatchTuesday (PT) just as Microsoft, Adobe or Oracle are using. And PatchTuesday is, as you all know, …
The OWASP Foundation plays an important role in helping to improve security of software worldwide. They have created a popular and well-known awareness document called the ‘OWASP Top 10‘. …
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 …
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 …
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 …
