CatOps Digest 2025-05-18
What was on CatOps in the last couple of weeks...
This newsletter is used to come out on Sundays, but I’d like to experiment with the weekday a bit.
Substack does not allow more than 5 options for a poll, so I had to bisect the results a bit.
Charity
We were mostly closing ad-hoc requests in these couple of weeks, but those units require continuous support nevertheless.
Time Sensitive
Just one more day to acquire the DevOps 2025 books bundle by O’Reilly!
Digest
Multi-platform Docker images with GoReleaser and GitHub Actions - a how-to article with a self-explanatory name.
Use GitHub Container Registry (GHCR) to host your Helm Charts - a short guide of how to host your Helm charts in the GitHub registry (which is OCI compliant).
Cost Exporter - a little tool I’ve created to expose the cost metrics from AWS Cost Explorer in the Prometheus format. CloudWatch integration is coming!
5 Simple Ways to Level Up Your Communication - at some point in your career, communication becomes crucial. This article provides some practical advices on how to become better in it.
How we structure on-call rotations at Datadog - an article on how oncall is handled in DataDog.
A way to pass arbitrary values in a Helm named template as parameters - GH answer number one, and the answer number two. The idea is the same, the second comment builds on top of the first one.
Incident Report: Spotify Outage on April 16, 2025 - a public postmortem of the Spotify’s recent outage.
Kubernetes v1.33 Fixes a 10-Year-Old Image Pull Loophole - the loophole is about pulling images. While it could have always been easy to mitigate, it’s nice that things like this one are fixed event after all these years.
That’s all for now, folks! Please, do not forget to participate in my small poll!
Here’s a random photo of Berlin.
