DevOps & SRE notes

Collection of patterns, examples and resources for GitOps process design, GitOps repository structures, etc

https://github.com/cloudogu/gitops-patterns

Reducing AWS costs is a top priority for many organizations. This article from Levels.fyi explores practical strategies to slash your AWS bill. From optimizing resource utilization to leveraging cost-saving tools, learn how to implement effective measures to significantly lower your cloud expenses while maintaining performance and efficiency.

https://www.levels.fyi/blog/slashing-aws-bill.html

Cascading failures can disrupt systems in unexpected ways, and even the simple task of scheduling team lunches can illustrate these complexities. This article by Jaywhy13 uses the metaphor of organizing team lunches to explain the intricacies of cascading failures in systems. Discover how these failures occur and strategies to prevent them in both technical and everyday scenarios.

https://jaywhy13.hashnode.dev/cascading-failures-and-the-impossibility-of-scheduling-team-lunches

Percona Everest is a cloud-native database platform to deploy and manage enterprise-grade PostgreSQL, MongoDB and MySQL database clusters.

https://github.com/percona/everest

Cloud-agnostic managed Kubernetes

https://github.com/berops/claudie

Debugging random node lock-ups in a Linux kernel can be a complex and daunting task. This article by Povilas Veresciakas delves into the intricate process of diagnosing and resolving such issues, providing a detailed walkthrough of the techniques and tools used to identify the root cause. Gain insights into effective debugging practices and learn how to tackle similar challenges in your own systems.

https://povilasv.me/debugging-a-random-node-lock-up-in-a-linux-kernel/

Understanding how to optimize costs and performance using Karpenter and AWS Reserved Instances is essential for managing cloud infrastructure efficiently. This article from PerfectScale discusses the integration of Karpenter with AWS Reserved Instances, highlighting the benefits and strategies for achieving cost-effective scalability and enhanced resource utilization.

https://www.perfectscale.io/blog/karpenter-and-aws-reserved-instances

Manage Kubernetes Operators from the command line

https://github.com/operator-framework/kubectl-operator

An operator to apply patches to Kubernetes objects in a declarative way.

https://github.com/redhat-cop/patch-operator

Integrating CI/CD pipelines with multi-architecture containers presents unique challenges and opportunities. This article from InfraCloud explores the strategies and tools necessary for building and deploying multi-architecture containers efficiently. Learn how to streamline your CI/CD processes to support diverse architectures, ensuring consistent performance and compatibility across different environments.

https://www.infracloud.io/blogs/multi-arch-containers-ci-cd-integration/

Analyzing volatile memory on a Google Kubernetes Engine (GKE) node is crucial for understanding performance issues and security vulnerabilities. This article delves into the methods and tools used by Spotify's engineering team to examine and manage volatile memory effectively on GKE nodes, offering valuable insights and practical techniques for improving system reliability and performance.

https://engineering.atspotify.com/2023/06/analyzing-volatile-memory-on-a-google-kubernetes-engine-node/

Request-based autoscaling in Kubernetes allows for dynamic scaling of applications based on incoming traffic, including the ability to scale down to zero when no requests are present. This article by Daniele Polencic explores the concept of request-based autoscaling in Kubernetes, detailing how it works, the benefits, and implementation strategies. Learn how to efficiently manage resources by automatically scaling your applications in response to demand.

https://dev.to/danielepolencic/request-based-autoscaling-in-kubernetes-scaling-to-zero-2i73

CI/CD Security Analyzer

https://github.com/CycodeLabs/raven

Build & ship backends without writing any infrastructure files.

https://github.com/shuttle-hq/shuttle

A multi-cluster batch queuing system for high-throughput workloads on Kubernetes.

https://github.com/armadaproject/armada

Managing telemetry data efficiently is crucial for maintaining application performance and reducing costs. This blog post offers practical tips and strategies to minimize the amount of telemetry data generated by your app without compromising on essential insights. Explore methods to optimize data collection, enhance performance, and achieve cost-effective monitoring.

https://brightinventions.pl/blog/how-to-reduce-telemetry-data-produced-by-your-app/

Integrating BGP, Cilium, and FRR can revolutionize your network's performance and scalability. This blog post explores how combining these technologies at the top-of-rack (ToR) level can enhance network efficiency and security. Learn about the benefits, implementation strategies, and real-world applications of using BGP, Cilium, and FRR in your infrastructure.

https://blog.miraco.la/bgp-cilium-and-frr-top-of-rack-for-all

A file server that supports static serving, uploading, searching, accessing control, webdav...

https://github.com/sigoden/dufs

The Feature-rich, Kubernetes-native, Next-Generation API Gateway Built on Envoy

https://github.com/solo-io/gloo

NGINX Gateway Fabric provides an implementation for the Gateway API using NGINX as the data plane.

https://github.com/nginxinc/nginx-gateway-fabric