Open-source observability for microservices. Thanks to eBPF you can gain comprehensive insights into your system within minutes.
https://github.com/coroot/coroot

🦭 Run and operate MariaDB in a cloud native way
https://github.com/mariadb-operator/mariadb-operator

In this article, you'll explore the complexities of Kubernetes network management, iptables, and port forwarding and discover how Kubernetes hides service ports from traditional tools like netstat.

https://journal.hexmos.com/kube-network/

Tools for building Kubernetes disk images

https://github.com/kubernetes-sigs/image-builder

Logging operator for Kubernetes

https://github.com/kube-logging/logging-operator

A toolkit for building declarative operators with kubebuilder

https://github.com/kubernetes-sigs/kubebuilder-declarative-pattern

(grafana) Dashboards As Resources in Kubernetes
https://github.com/K-Phoen/dark

A little tool that will construct a Docker image archive from a set of Kubernetes manifests.
https://github.com/gpu-ninja/airgapify

Kiali project, observability for the Istio service mesh
https://github.com/kiali/kiali

In this tutorial, you will learn how to validate Kubernetes resources with Validating Admission Policies (VAPs) and Common Expression Language (CEL).
https://www.doit.com/effortless-in-cluster-validation-with-kubernetes-introducing-validating-admission-policies/

☸️ Kubernetes-native testing framework for test execution and orchestration
https://github.com/kubeshop/testkube

14 years ago, I sat in the audience and watched John Allspaw and Paul Hammond explain how they worked together to deploy Flickr 10+ times a day - the moment what would become DevOps was born. Like everyone else who had the good fortune to see it, I was stunned - at their articulation of the cultural problems that were in our way, and the technology solutions they had developed to solve their problems.
https://www.systeminit.com/blog-second-wave-devops/

Underlay and RDMA network solution of the Kubernetes, for bare metal, VM and any public cloud

https://github.com/spidernet-io/spiderpool

The blog post "Serverless OpenTelemetry at Scale: The PostNL Context" by Luc van Donkersgoed is focused on implementing OpenTelemetry in a serverless environment at a large scale, particularly in the setting of PostNL. The article likely provides insights into the technical intricacies and challenges associated with this implementation, offering valuable perspectives for professionals in cloud computing and serverless technologies.
https://lucvandonkersgoed.com/2023/11/10/serverless-opentelemetry-at-scale-the-postnl-context/

The article "Engineering Transformations - Adopting Automated Testing As A Practice" delves into the critical role of automated testing in software development. It focuses on how leadership can spearhead the integration of automated testing into development workflows. The piece explores the challenges encountered and strategies needed for effective implementation, especially in startup and growth-stage company environments. It emphasizes the combination of technical and sociological elements necessary for this engineering transformation.

https://vaidik.in/engineering-transformations-adopting-automated-testing/

Hubble - Network, Service & Security Observability for Kubernetes using eBPF
https://github.com/cilium/hubble