DubJUG 256 - Nicolas Frankel

Join Nicolas Fränkel on a rare visit to Dublin, Thursday 10th April, at the sixth of Dublin Java User Groups 2025 series.

At this event you will learn about OpenTelemetry Tracing, along with a walkthrough of End-to-End Pull Request Testing on Kubernetes.
As always, drinks and pizza is provided courtesy of our premier partners, Integral Ad Science, Stackand.Co Recruiters and FINEOS.

Practical Introduction to OpenTelemetry Tracing
Tracking a request’s flow across different components in distributed systems is essential. With the rise of microservices, their importance has risen to critical levels. Some proprietary tools for tracking have been used already: Jaeger and Zipkin naturally come to mind.

Observability is built on three pillars: logging, metrics, and tracing. OpenTelemetry is a joint effort to bring an open standard to them. Jaeger and Zipkin joined the effort so that they are now OpenTelemetry compatible.

In this talk, Nicolas will describe the above in more detail and showcase a (simple) use case to demo how you could benefit from OpenTelemetry in your distributed architecture.

A Walkthrough End-to-End Pull Request Testing on Kubernetes

As applications increasingly rely on Kubernetes for deployment, ensuring seamless integration and end-to-end testing during pull requests is crucial. This talk dives into the practical steps of building a robust CI/CD pipeline that mirrors production environments, enabling reliable and efficient testing within your Kubernetes ecosystem.

With Nicolas, we’ll explore how to:

• Set up foundational unit and integration tests using modern tools like Testcontainers and GitHub Workflows.
• Integrate Google Kubernetes Engine (GKE) to emulate a production-grade cluster for testing.
• Leverage vCluster to isolate test environments, ensuring parallel runs and minimizing interference.
• Gain actionable insights to create scalable and maintainable testing pipelines via an existing working example.

WHAT ELSE
As usual, plenty of craic, networking and refreshments courtesy of partners Integral Ad Science, FINEOS, and Stackand.Co Recruitment at the super easy location tcube workspaces BANG in the middle of Dublin city centre.

REGISTRATION IS FREE ON OFFICIAL BOOKING SITE HERE