Author: Lucas Jellema
Over the last few days, in this pre-Holiday season period, Oracle has released a number of interesting new services and updates to existing services. I plan on exploring them …
I recently tried to get Unified Auditing going for Oracle Database XE. I could not really find instructions – not even through ChatGPT – and finally reached out to …
GitHub Copilot helped me write a Java application to process a CSV file. Not a hard task – though one that in Java always feels much harder than in …
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. …
Backstage is the Developer Portal Platform that has come out of Spotify and now lives under the CNCF (Cloud Native Compute Foundation) umbrella where it is one of the …
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 …
I have prepared a Gitpod wokspace definition that allows me to start a fresh development environment with the latest release of Dapr (dapr.io) installed as well as supporting containers …
Gidpod provides ephemeral development environments. Run a Gitpod workspace and get a clean environment with precisely those components that have been configured for the use case or context you …
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 …
End of day two. So many topics already were presented, demonstrated, discussed, tried out to and by me. This article is just a very brief overview of what caught …
This article describes how you can run your very own Oracle Database from your browser using Gitpod. With a free account (50 hours Gitpod use per month), you can …
The challenge was as follows: provide a handson workshop environment – consisting of nothing more than a browser connected to our office’s Wifi network – for visitors to the …
Gitpod.io is a SaaS for software developers (that can also be used in self-hosted mode on Kubernetes). Gitpod makes workspaces available – typically based on a Git repository – …
Based on the fascinating Twitter thread by Philipp Salvisberg covering the presentation by Gerald Venzl at DOAG 2022 I would like to mention a few of the features that …
There are two public cloud. AWS and Azure. That is not actually the case – but that is how sometimes it may seem. A third cloud is frequently listed …
For the Open Day we organize shortly for our family, friends, neighbours and other interested parties, my colleagues create a custom web application to support our QR Scavenger Hunt …
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 …
My challenge: replicate changes from database A to database B, once per day. The tables involved are pretty big (100M records). I really would not want to process them …
Front end development can be an art. An almost pixel by pixel design, a careful crafting UX or even CX. And there is a time and place and technology …
This article shows you can quickly get started with a free, managed PostgreSQL database with a table full of country data (using ElephantSQL). ElephantSQL is a hosted, managed PostgreSQL …
Supabase provides a cloud based backend service to web applications. That means that any (static) web application can use Supabase for user authentication and data persistence. Supabase provides a …
In our daily work we are dealing with data from many sources. Data in CSV files, from Cloud APIs, in mail servers, configuration files, Terraform plans, in logging systems, …
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 …
Quite a few systems – business applications large and small – do not have support for WebHooks. That is: they do not offer the ability to register a URL …
An Oracle Wallet is an encrypted file that contains database credentials – username and password – for connecting to an Oracle Database. This avoids writing hard code user passwords …
Project Fn provides a framework for creating and running serverless functions. It is the foundation for the Functions service on Oracle Cloud Infrastructure. Dapr.io is an open source project …
Today is PI Day. March 14 or: 3-14 in the US. Of course it can be March 14th 2015 – 3-14-15 – only once but for some reason March …
It turned out to be a fairly small deal. For reference sake a brief write up of updating the Go runtime on my Ubuntu environment. Current version: go version …
I have been struggling a bit with this one: how to connect from a Go application to an Oracle Database – both a locally running database as well as …
Dapr is a runtime framework for distributed applications. Dapr also provides a personal assistant to any application and environment that offers standardized access to different facilities (state, secrets, configuration, …
I have worked quite a bit in Oracle Cloud, starting back in 2015. I have used many different OCI services – such as Integration, Streaming, Functions, OKE, API Gateway, …
In a recent article, I described the use of the OCI SDK for Go(Lang) – in my example to interact with the ObjectStorage service. In the article, I used …
Surely I would never be so stupid as to commit a file that contains sensitive information – say my Oracle Cloud account’s private key. And even if I did, …
I have used many open source products in my professional life. I have not studied the sources of many of these products and projects. My main contributions to the …
Dapr is a runtime framework for distributed applications as well as a personal assistant with many generic qualities relevant to any application. Through Dapr, applications can easily benefit from …
I am still fairly new at working with Go. I have the ambition of working with and perhaps even on several open source projects that all use Go as …
In a previous article I described how I prepared my local development environment from working with the source code of the Dapr project – locally editing, building and running …
In other articles I will write about the value of Dapr – as a personal assistant to any application that helps out with state, configuration and secrets, receiving inbound …
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 …
