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

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This entry introduces Talos, a minimal Linux distribution purpose-built for Kubernetes, and explains how its immutable design reduces drift and patching headaches. It walks through the installation flow, cluster bootstrap, and day-two operations from a practitioner’s viewpoint.
https://a-cup-of.coffee/blog/talos/
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The insight compiled by Ashish B. serves as a living cheat sheet for common Google Cloud tasks, covering everything from IAM gotchas to cost-saving tricks with gcloud commands. It’s a handy reference for engineers who bounce between cloud providers and need quick recall of GCP specifics.
https://ashishb.net/programming/google-cloud/
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In this article, “Making Your System Observable” outlines practical techniques for evolving from scattered logs to coherent observability across services. Readers will discover why a holistic signals-first mindset matters more than bolting on dashboards late in the game.
https://www.architecture-weekly.com/p/making-your-system-observability
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This blogpost by Yandex SRE Dmitry Ziablov recounts a late-night incident that turned a harmless retry loop into a production outage. He dissects the cascade of failures and offers a framework for spotting bad retry patterns before they bite.
https://medium.com/yandex/good-retry-bad-retry-an-incident-story-648072d3cee6
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The piece argues that traces beat metrics when you need to pinpoint latency spikes and hidden dependencies. It walks through three concrete debugging scenarios that show why span data can surface root causes in seconds.
https://jaywhy13.hashnode.dev/3-reasons-traces-better-than-metrics-for-debugging-your-application
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In Slack’s detailed write-up, engineers share how the Unified Grid architecture split a monolithic workspace into isolated “cells” to serve enterprises with hundreds of thousands of users. The narrative dives into sharding strategy, migration challenges, and the performance wins that followed.
https://slack.engineering/unified-grid-how-we-re-architected-slack-for-our-largest-customers/
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The essay walks through a hands-on pipeline that signs Kubernetes container images with Cosign, enforces them with Kyverno, and stores keys in HashiCorp Vault—all wired together in GitLab CI. You’ll leave with a reproducible template for securing your software supply chain.
https://angapov.medium.com/kubernetes-container-images-signing-using-cosign-kyverno-hashicorp-vault-and-gitlab-ci-c4e2041d1310
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Understand the intricacies of container communication within a Kubernetes pod, exploring the various mechanisms and considerations for enabling effective interaction between containers in a shared environment. This article provides insights into Kubernetes networking concepts.
https://medium.com/@sumuduliyan/container-communication-inside-a-kubernetes-pod-a5e84d607ef2
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Explore the challenges and solutions for managing stateful applications in Kubernetes using Operators, gaining insights into how to effectively handle persistent data and complex deployments. This blog post delves into the complexities of stateful workloads in Kubernetes.
https://blog.palark.com/stateful-in-kubernetes-and-operators/
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Forwarded from Python notes
This piece provides a guide to building a Retrieval-Augmented Generation (RAG) system using Anthropic's Claude, PostgreSQL, and Python on AWS. The tutorial walks through setting up the necessary PostgreSQL extensions and using Amazon Bedrock to create an application that generates more accurate AI responses.

https://www.tigerdata.com/blog/building-a-rag-system-with-claude-postgresql-python-on-aws
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Delve into the innovative approach of building a serverless ACID-compliant database, understanding the techniques and trade-offs involved in achieving transactional consistency in a serverless environment. This article explores a novel database architecture.
https://notes.eatonphil.com/2024-09-29-build-a-serverless-acid-database-with-this-one-neat-trick.html
Explore the strategies and techniques Cloudflare employs to improve the resilience of its platform, ensuring high availability and reliability for its global network. This blog post provides insights into building a resilient infrastructure.
https://blog.cloudflare.com/nl-nl/improving-platform-resilience-at-cloudflare/
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