2026-07-13¶

OTTL deep dive¶

The one and only Reese Lee wrote Devs, Transform (Your Data with OTTL) and Roll Out!, an excellent hands-on deep dive on OpenTelemetry Transformation Language (OTTL). Thank you!

OTel security practices¶

Via the official OTel blog: read Applying OpenTelemetry Security Practices in Legacy Environments by Lukasz Ciukaj to learn all about this important topic.

Client-side OTel¶

The good folks from Embrace host yet another interesting online panel: mark July 22 in your calendar and join the Riding the wave of client-side OpenTelemetry panel.

Handling span metrics¶

Span Metrics Without the Cardinality Explosion by Jason Agee is a really useful hands-on guide on the topic of handling RED metrics from spans.

Speeding up builds¶

Anirud Samala shared Speeding up Next.js Docker builds with OpenTelemetry Traces, an unconventional yet useful use case.

Cerberus¶

Stumbled upon Cerberus which positions itself as a drop-in Prometheus, Loki & Tempo gateway for ClickHouse by translating PromQL/LogQL/TraceQL to SQL.

That was it for this edition of the o11y newsletter. Feel free to share news items with me via Bluesky DM. Stay safe and hope to see you around next week!