Heiko W. Rupp – Medium

Heiko W. Rupp

Heiko W. Rupp

How to successfully apply at GSoC (and other similar efforts )

[ This used to be a draft on my hard disc for much too long ]

Jun 16, 2023

How to successfully apply at GSoC (and other similar efforts )

Jun 16, 2023

Heiko W. Rupp

A small tale about testing and what a coffee machine has to do with it

I am a big fan of testing in production. That does not mean I don’t test via unit test or in staging, but all those environments are…

May 22, 2023

Internals of a coffee machine with a white tube, that I had to replace as the original one went boom

May 22, 2023

Heiko W. Rupp
in
ITNEXT

Distributed Tracing with Quarkus, Python, Open Telemetry and Jaeger (Part 3)

The last two parts (1, 2) of this series focussed on Tracing basics and instrumentation of Quarkus and Python code for http requests. A…

Aug 17, 2022

Distributed Tracing with Quarkus, Python, Open Telemetry and Jaeger (Part 3)

Aug 17, 2022

Heiko W. Rupp
in
ITNEXT

Distributed Tracing with Quarkus, Python, Open Telemetry and Jaeger (Part 2)

In the last part we looked at instrumenting some Quarkus and Python code to obtain traces, which we forwarded to Jaeger. Unfortunately, the…

Aug 10, 2022

Distributed Tracing with Quarkus, Python, Open Telemetry and Jaeger (Part 2)

Aug 10, 2022

Heiko W. Rupp
in
ITNEXT

Distributed Tracing with Quarkus, Python, Open Telemetry and Jaeger (Part 1)

In a microservices world, there is no easy way of attaching a debugger or profiler to one component to understand why it exposes a certain…

Aug 10, 2022

Distributed Tracing with Quarkus, Python, Open Telemetry and Jaeger (Part 1)

Aug 10, 2022

Heiko W. Rupp
in
ITNEXT

My toolbox: Wireshark

In my previous toolbox article I talked about HttpToolkit and how awesome it is to see http requests in action. There is an older tool…

Jun 6, 2022

My toolbox: Wireshark

Jun 6, 2022

Heiko W. Rupp
in
ITNEXT

Using Minikube on M1 Macs

On x86-based CPUs it is quite normal to run Linux containers and also Kubernetes. With the new M1-CPU based Macs, there are still…

May 10, 2022

A bunch of red apples, where the first one has a bite on the right side.

May 10, 2022

Heiko W. Rupp
in
ITNEXT

My toolbox: HttpToolkit

[ This is the first article in an upcoming series of toolbox ones that showcase some of the tools I use in my development work ]

Apr 27, 2022

Screenshot of the HttpToolkit Interception view with some traffic

Apr 27, 2022

Heiko W. Rupp
in
ITNEXT

How to use request-scoped tokens with caching

In a project I am working on I need to get tokens from a single-signon (SSO) -server to be able to talk to another service. That token has…

Apr 25, 2022

Diagram with my service in the middle, receiving an event and then calling SSO and the other service

Apr 25, 2022

Heiko W. Rupp
in
ITNEXT

(Re)introducing x2svg

Back in the day, in 2008 to be more concrete, I needed to visualise data structures like DTDs or XML schemas. I created x2svg and put it on…

Nov 15, 2021

(Re)introducing x2svg

Nov 15, 2021

Heiko W. Rupp

Heiko W. Rupp

Long time Open Source developer, currently working at Red Hat. Find me also at https://mastodon.social/@pilhuhn

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