Guys, if you worked with K8S and used HPA you know about typical issues. I suggest watching this video from DevOops 2019.

https://www.youtube.com/watch?v=IpJgL-VRyaM

CNI comparison in Russian (contains some interesting updates)

https://habr.com/ru/company/southbridge/blog/518782/

Free "Certified Rancher Operator: Level 1"

https://academy.rancher.com/courses/course-v1:RANCHER+K101+2019/course/

Tinkerbell is a flexible bare metal provisioning engine

https://github.com/tinkerbell

Kubernetes operators on Python (JFI, I do not suggest to use Python, use Go, Luke)

https://github.com/zalando-incubator/kopf

Chaos Mesh® is a cloud-native Chaos Engineering platform that orchestrates chaos on Kubernetes environments. At the current stage, it has the following components:

https://github.com/chaos-mesh/chaos-mesh

Converge is a configuration management tool that makes it easy to manage servers, laptops and other devices.
(We need to check what is the diff between converge and Ansible. For now I see that the first one uses HCL and it could be a benefit for people who like TF)

https://github.com/asteris-llc/converge

Kubernetes Networking
old, but still actual article

https://cloudnativelabs.github.io/post/2017-04-18-kubernetes-networking/

Kubecost is good tool for checking K8S costs (you capitan)
https://kubecost.com/

CRD is just a table in Kubernetes

https://itnext.io/crd-is-just-a-table-in-kubernetes-13e15367bbe4

DRYing GitLab CI/CD Pipelines
https://medium.com/@kenzanmedia/drying-gitlab-ci-cd-pipelines-8a56408cf19f

Prometheus + Thanos monitoring
https://www.giffgaff.io/tech/monitoring-at-giffgaff/

Introducing Thanos: Prometheus at scale
https://improbable.io/blog/thanos-prometheus-at-scale

Integrating Azure Monitor Metrics to Prometheus Time-Series Database With Azure Exporter
https://dzone.com/articles/integrating-azure-monitor-metrics-to-prometheus-ti

Continuous Blue-Green Deployments With Kubernetes
https://semaphoreci.com/blog/continuous-blue-green-deployments-with-kubernetes