DevOps & SRE notes

Ohayou(おはよう), HTTP load generator, inspired by rakyll/hey with tui animation.

https://github.com/hatoo/oha

This article details Cloudflare's successful migration of billions of DNS records from their main database cluster to a new dedicated DNS database. The migration involved moving 1.7 billion records from the primary DNS table and 4.3 billion records from an archive table, while ensuring zero data loss and minimal downtime

https://blog.cloudflare.com/migrating-billions-of-records-moving-our-active-dns-database-while-in-use/

This author explores two primary collaboration styles in software development: individual stewardship and shared stewardship. It delves into the characteristics, strengths, and weaknesses of each approach, providing insights into their application in various work environments

https://rethinkingsoftware.substack.com/p/programmer-collaboration-styles

A cross-platform TUI database management tool written in Go.

https://github.com/jorgerojas26/lazysql

Blazing 💥 fast terminal-ui for git written in rust 🦀

https://github.com/extrawurst/gitui

This blog post discusses preemptible pods in Kubernetes, a feature that allows for more efficient resource utilization in cluster environments. It likely explores how PerfectScale's solutions can help users optimize their Kubernetes deployments by leveraging preemptible pods effectively.

https://www.perfectscale.io/blog/preemptible-pods

This article provides an in-depth exploration of OpenTelemetry logs, a powerful open-source observability framework. It discusses how OpenTelemetry simplifies the collection and management of telemetry data at scale, offering developers better insights into application performance and behavior.


https://manassharma.hashnode.dev/opentelemetry-logs-deep-dive

n³ The unorthodox terminal file manager

https://github.com/jarun/nnn

An extensible framework for application-level data management on Kubernetes, Kanister is a Cloud Native Computing Foundation sandbox project and was originally created by the Veeam Kasten team.

https://github.com/kanisterio/kanister

This blog post provides an in-depth exploration of the new mseal system call introduced in Linux kernel 6.10. The mseal syscall implements "memory sealing," allowing developers to make memory regions immutable during program runtime1
. It prevents attackers from modifying sealed memory areas, even with code execution capabilities1

https://blog.trailofbits.com/2024/10/25/a-deep-dive-into-linuxs-new-mseal-syscall/

This article details the author's experience integrating a MongoDB NoSQL database into a Kubernetes cluster and connecting it with a Spring Boot application. It provides a step-by-step guide on setting up a local Kind Kubernetes cluster, installing the MongoDB operator, creating a MongoDB cluster, and developing a Spring Boot application that interacts with the database

https://medium.com/@martin.hodges/my-experience-adding-a-mongodb-no-sql-database-to-my-kubernetes-cluster-f43fe72fa0ba

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static builds cURL with HTTP3

https://github.com/stunnel/static-curl

PostgreSQL binary manager

https://github.com/theory/pgenv

The article demonstrates how TAR can cause a complete service outage in one zone if pods become unavailable, despite the presence of healthy pods in other zones1
. It also highlights additional limitations of TAR, such as inconsistent behavior with fewer than three pods per zone and potential conflicts with other Kubernetes features like horizontal pod autoscaling

https://buoyant.io/blog/the-trouble-with-topology-aware-routing-sacrificing-reliability-to-avoid-cross-zone-traffic

This article provides a comprehensive guide on implementing a Kubernetes webhook admission controller for custom authorization logic. It covers the process of creating an authorization service using Golang, setting up TLS certificates for secure communication, and configuring the necessary Kubernetes resources

https://itnext.io/kubernetes-webhook-admission-controller-3271d041c636

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Lightweight server monitoring hub with historical data, docker stats, and alerts.

https://github.com/henrygd/beszel

Hypermedia based internal tools for teams. Application server for containerized apps. Runbook automation like Rundeck, custom apps like Retool.

https://github.com/claceio/clace