My own AWS Landing Zone
You probably know how this works: you start learning AWS, get a free tier account, work with it – play with it (yes, really, AWS is toys for adults). …
Category: Platform Technology
How to enable Oracle Database Azure AD authentication
As of Oracle database release update 19.18 a new authentication method was made available utilizing Azure AD (Entry ID as its named by Microsoft recently) Oauth tokens. Using this …
A first look at the Autonomous Database container image
September 29, 2023
Oracle Cloud, Cloud, Containers, Database, Databases, Platform Technology, Podman, Serverless, Technology
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Yesterday Oracle released their latest Autonomous database offering in a container image to try (most of) the Automous database technology without requiring access to the Oracle Cloud (OCI). This …
Mission Critical Software: Navigating the ‘Always On’ Challenge
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, …
Trouble shooting Vagrant 2.3.6 and VirtualBox Guest Additions while upgrading a VM with Ubuntu Desktop 22.04 LTS, on my Windows laptop using Vagrant and Oracle VirtualBox
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 …
Writing your own Lambda function for secret rotation
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 – generate a customized container powered Data Platform environment
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 …
Creating custom notification banners in OpenShift
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 …
Dynamic Configuration of Terraform plans and Stacks in Oracle Cloud Infrastructure
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 …
Terraform – injecting local and remote Configuration Data
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 …
Quickest way to run a container on Oracle Cloud Infrastructure: container instances
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 …
Overhead of Service Mesh–measuring and comparing Istio, Linkerd, Kuma and Consul
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. …
Running OpenTelemetry Demo in Gitpod Workspace–two click install
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 …
Quickly try out Kubernetes with two Pods–web app and database
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 …
Which tools and technologies are new and exciting, proven, growing stale–report from Devoxx 2022
October 14, 2022
Architecture, Cloud, Frontend technology, Kubernetes, Software Development
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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 …
Adding Podman to my VM with Minikube (part 2)
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 …
Adding Podman to my VM with Minikube (part 1)
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 …
Run "docker-compose" on Oracle Cloud Infrastructure Compute using Podman
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 …
Is RHCSA still relevant when you use the cloud?
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 …
Creating a minimal container image for a Go application
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 …
AMIS DataSafe, the answer to Black Swan scenarios
March 29, 2022
Technology, AMIS, Architecture, Cloud, Cyber Security, DevOps, Digtial Innovation, Gouvernance, Platform Technology
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How to be prepared for a black swan scenario?
Dapr on OKE–Distributed Application Runtime on OCI Kubernetes Engine
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 …
Getting started (again) with Kubernetes on Oracle Cloud
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 …
Continuous Generation and Publication of Docstring Documentation on Azure – using Sphinx, Pydoc, Storage Account and App Service
August 17, 2021
Cloud, Containers, Deployment, Docker, Microsoft Azure, Python, Software Engineering, Technology
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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 …
How to run Jenkins with Chrome from a Docker container
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 …
Migrate Oracle VM to KVM easily and without reconfiguration
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 …
Check for RunAs accounts in Automation Accounts
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 …
VNet peering in Azure
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 …
Using one-time upload URLs in AWS with S3 versioning
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 …
Using one-time upload URLs in AWS with Memcached
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 …
Using one-time upload URLs in AWS using DynamoDB
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 …
AWS Lambda: shared libraries (and SAM)
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 …
AWS blog series part 6: speed up the use of the ELB Health Status
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, …
AWS blog series part 5: Start PowerShell script after a reboot when Windows fails to do so
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” …
Windows Failover Cluster on AWS part 4: Construction of the CloudFormation scripts
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 …
AWS Migration part 1: how to migrate Windows Failover Clustering servers to AWS?
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 …
How to dynamically Schedule EM Blackouts after PatchTuesday
November 7, 2020
Enterprise Manager, AMIS, DBA Oracle, PL/SQL, Platform Technology, Tools
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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, …
Jenkins Pipeline: SonarQube and the OWASP Dependency-Check
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‘. …
Quarkus – Supersonic Subatomic Java, trying out Quarkus guide “Quarkus – Kubernetes extension” (part 3)
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 …
Quarkus – Supersonic Subatomic Java, trying out Quarkus guide “Quarkus – Kubernetes extension” (part 2)
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 …