DevOps & SRE notes

Kubernetes Operators are a powerful tool for automating the management of complex applications in a Kubernetes environment. This guide from Red Hat provides developers with an in-depth understanding of Kubernetes Operators, covering their architecture, development process, and practical use cases. Learn how to build, deploy, and manage Operators to simplify application lifecycle management and ensure more efficient, automated operations in your Kubernetes clusters.

https://developers.redhat.com/articles/2024/01/29/developers-guide-kubernetes-operators

cheat allows you to create and view interactive cheatsheets on the command-line. It was designed to help remind *nix system administrators of options for commands that they use frequently, but not frequently enough to remember.

https://github.com/cheat/cheat

Disk Usage/Free Utility - a better 'df' alternative

https://github.com/muesli/duf

Speeding up container image builds is vital for efficient CI/CD pipelines. This article from the CD Foundation discusses how to optimize container image builds using Tekton Pipelines. Discover strategies and best practices for reducing build times, enhancing build efficiency, and leveraging Tekton's capabilities to streamline your development workflow.
https://cd.foundation/blog/2023/10/12/speed-up-container-image-builds-tekton-pipelines/

Understanding different team types is crucial for structuring effective organizations and fostering collaboration. This article from IT Revolution outlines the four team types in modern software development: Stream-aligned, Enabling, Complicated-Subsystem, and Platform teams. Learn how each team type functions, their responsibilities, and how they can work together to deliver value efficiently and improve overall organizational performance.

https://itrevolution.com/articles/four-team-types/

EKS Node Viewer

https://github.com/awslabs/eks-node-viewer

The Open Source Dev Environment Manager.

https://github.com/daytonaio/daytona

Monitoring Redis metrics is essential for ensuring optimal performance and reliability of your Redis instances. This article from Sematext explores the key Redis metrics you should track, including memory usage, latency, and command performance. Learn how to leverage these metrics to identify potential issues, optimize resource usage, and maintain a high-performing Redis environment.

https://semaphoreci.com/blog/security-cloud-environment

Monitoring Redis metrics is crucial for maintaining optimal performance and ensuring system reliability. This article from Sematext outlines key Redis metrics to monitor, such as memory usage, latency, and command processing. Learn about best practices for tracking and analyzing these metrics to prevent issues, optimize performance, and ensure the smooth operation of your Redis instances.

https://sematext.com/blog/redis-metrics/

A more intuitive version of du in rust

https://github.com/bootandy/dust

The open-source alert management and AIOps platform

https://github.com/keephq/keep

Understanding the internals of GNU/Linux, including file descriptors, pipes, terminals, user sessions, process groups, and daemons, is essential for Site Reliability Engineers (SREs). This comprehensive guide by Biriukov covers these critical concepts, explaining how they function and interconnect within a Linux environment. Learn how these components work together to manage processes and sessions, providing a foundation for advanced system troubleshooting and performance optimization.

https://biriukov.dev/docs/fd-pipe-session-terminal/0-sre-should-know-about-gnu-linux-shell-related-internals-file-descriptors-pipes-terminals-user-sessions-process-groups-and-daemons/

Managing access to Amazon RDS instances securely is vital for protecting your data and maintaining compliance. This article from SymOps discusses strategies for controlling and auditing access to RDS instances in AWS environments. Learn about best practices, tools, and techniques to enhance security, streamline access management, and ensure that only authorized users can interact with your databases.

https://blog.symops.com/post/rds-access

Wazuh - The Open Source Security Platform. Unified XDR and SIEM protection for endpoints and cloud


https://github.com/wazuh/wazuh

The next gen ls command

https://github.com/lsd-rs/lsd

Detecting and managing infrastructure drift is crucial for maintaining the desired state of your AWS resources. This article from ShipMonk's Product Development blog explains how to implement drift checks in Terraform for AWS environments. Learn about tools and techniques to identify, monitor, and remediate drift, ensuring your infrastructure remains consistent and compliant with your configurations.
https://pd.shipmonk.com/terraform-aws-drift-checks/

Performance regressions in cloud environments can be challenging to diagnose and resolve. This article from DoltHub discusses a "spooky" performance regression issue encountered with AWS Elastic Block Store (EBS). It explores the investigative steps taken to identify the root cause, the lessons learned, and best practices for monitoring and mitigating similar issues in cloud storage systems.

https://www.dolthub.com/blog/2023-11-22-spooky-performance-regression-aws-ebs/

🥧 HTTPie CLI — modern, user-friendly command-line HTTP client for the API era. JSON support, colors, sessions, downloads, plugins & more.

https://github.com/httpie/cli

A syntax-highlighting pager for git, diff, grep, and blame output

https://github.com/dandavison/delta

Upgrading Amazon EKS worker nodes is crucial for maintaining security, performance, and access to new features. This AWS blog post explains how to use Karpenter to automate the upgrade of EKS worker nodes, specifically handling node drift. Learn about the process and best practices to ensure smooth upgrades, minimize downtime, and maintain consistency in your Kubernetes environment.

https://aws.amazon.com/blogs/containers/how-to-upgrade-amazon-eks-worker-nodes-with-karpenter-drift/