DevOps & SRE notes – Telegram
DevOps & SRE notes
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Helpfull articles and tools for DevOps&SRE

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This piece offers a detailed look into the system architecture that powers Netflix's streaming service. It covers the company's cloud-native approach, its use of microservices, and its sophisticated content delivery network (CDN).
https://www.clickittech.com/software-development/netflix-architecture/
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Karsten Schnitter's review on the OpenSearch blog explores how to visualize metrics ingested with OpenTelemetry using OpenSearch Dashboards. The author provides examples of creating insightful visualizations for monitoring Kubernetes container metrics.
https://opensearch.org/blog/opentelemetry-metrics-visualization/
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This treatise by Usama Malik explains how to create reusable infrastructure components using Terraform modules. The author highlights the benefits of modularity, such as improved efficiency, maintainability, and collaboration.
https://aws.plainenglish.io/how-to-create-reusable-infrastructure-with-terraform-modules-b4bbcf4c0ad1
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In this piece from Slack Engineering, the authors advocate for intentionally breaking systems to improve resilience. They share a real-world incident that led them to adopt "strategic chaos" as a way to test and strengthen their recovery processes.
https://slack.engineering/break-stuff-on-purpose/
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This essay by howardjohn explores different options for implementing mutual TLS (mTLS) in a Kubernetes environment. The author compares do-it-yourself methods with service mesh and CNI-based approaches, offering recommendations for various use cases.
https://blog.howardjohn.info/posts/mtls-kubernetes/
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This report on HackerNoon offers a detailed look at implementing graceful shutdowns for Go applications running in Kubernetes. It explains how to handle termination signals to prevent data loss and ensure service stability during updates or scaling events.
https://hackernoon.com/mastering-graceful-shutdowns-in-go-a-comprehensive-guide-for-kubernetes
This walkthrough from Minimal DevOps demonstrates how to implement predictive autoscaling for Kubernetes workloads. It leverages KEDA to act on forecasts generated by Prophet, allowing scaling actions to anticipate demand rather than just reacting to it.
https://minimaldevops.com/predictive-autoscaling-in-kubernetes-with-keda-and-prophet-cbccd96cf881
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How did you start your morning? Cloudflare decided that you’d had too much of the internet.
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DevOps & SRE notes
How did you start your morning? Cloudflare decided that you’d had too much of the internet.
A change made to how Cloudflare's Web Application Firewall parses requests caused Cloudflare's network to be unavailable for several minutes this morning. This was not an attack; the change was deployed by our team to help mitigate the industry-wide vulnerability disclosed this week in React Server Components. We will share more information as we have it today.

https://www.cloudflarestatus.com/incidents/lfrm31y6sw9q
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Cloudflare has had two major outages in less than 30 days. Are big tech companies broken? Can’t they be examples of good role models? Or is it just that shit happens?
Final Results
35%
Yes, everything is broken. They’re no longer a good example of solid engineering practices
65%
No, it’s fine. Shit happens, come on.
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Will Sulzer's report details the process of deploying self-hosted GitHub Action Runners on Google Kubernetes Engine (GKE) using a rootless Docker-in-Docker setup. The instructions focus on achieving this with minimal privileges for enhanced security.
https://medium.com/google-cloud/github-action-runners-on-gke-with-dind-rootless-bd54e23516c9
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This analysis explores how eBPF (extended Berkeley Packet Filter) can be used to gain insights into real-time SSL/TLS encrypted traffic. The author, TJ. Podobnik, discusses how this technology allows for monitoring without compromising security.
https://medium.com/all-things-ebpf/what-insights-can-ebpf-provide-into-real-time-ssl-tls-encrypted-traffic-and-how-435c8ad33efc
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