Stern allows you to tail multiple pods on Kubernetes and multiple containers within the pod.

Each result is colour coded for quicker debugging.

More: https://github.com/stern/stern

This 3-part series covers how Kubernetes resources (CPU and memory) work.

You will learn the following:

- CFS (Completely Fair Scheduler)
- Pod priorities.
- Quality of Services.
- How scheduling works.
- OOM.

More: https://medium.com/directeam/kubernetes-resources-under-the-hood-part-2-6eeb50197c44

In this article, you will learn how you can use Podman, Buildah, and Skopeo as replacements for the traditional Docker workflow, without the use of a daemon or root privileges.

More: https://dev.to/cedricclyburn/containers-without-docker-podman-buildah-and-skopeo-1eal

In this article, you'll learn some common causes for the ImagePullBackOff error and implement some possible solutions.

More: https://blog.ediri.io/kubernetes-imagepullbackoff

With kubectl-count you can count Kubernetes resources by kind.

More: https://github.com/chenjiandongx/kubectl-count

The kube-secrets-init is a Kubernetes mutating admission webhook, that mutates any pod that is using specially prefixed environment variables and injects secrets accordingly.

More: https://github.com/doitintl/kube-secrets-init

Popular apps can be vulnerable to traffic surges that overwhelm the APIs and cause cascade failures.

In this tutorial, you'll learn how to use multiple Ingress Controllers to prevent Kubernetes apps and APIs from crashing.

More: https://nginx.com/blog/microservices-march-protect-kubernetes-apis-with-rate-limiting

This tool watches kubernetes resources and prints the delta in changes.

More: https://github.com/ibuildthecloud/wtfk8s

This article compares Kubernetes and containers to a more traditional deployment model with virtual machines and load balancers.

More: https://iximiuz.com/en/posts/kubernetes-vs-virtual-machines

In this article, you will learn what it is and how to use kustomize.

More: https://medium.com/@nanditasahu031/how-to-start-with-kustomize-its-features-dd541c3d2fa8

In this article, you'll learn how to deploy k3s to a Raspberry Pi cluster with ClusterHat and ClusterCTRL.

More: https://dev.to/dashaun/k3s-on-raspberry-pi-and-clusterhat-m6k

Goldilocks is a utility that can help you identify a starting point for resource requests and limits.

More: https://github.com/FairwindsOps/goldilocks

KubeCraftAdmin: this project allows you to do basic Kubernetes administration through Minecraft.

More: https://github.com/erjadi/kubecraftadmin

Files on Kubernetes Secret and ConfigMap volumes work in peculiar and undocumented ways when watching changes to these files with the inotify syscall.

Your typical file watch that works outside Kubernetes might not work as you expect.

More: https://ahmet.im/blog/kubernetes-inotify/index.html

Kubeapps is an in-cluster web-based application that enables users with a one-time installation to deploy, manage, and upgrade applications on a Kubernetes cluster.

More: https://github.com/vmware-tanzu/kubeapps

In this tutorial, you will follow Dipankar's journey in building a web-based PDF editor using modern web technology and infrastructure.

Dipankar linked all the online resources that he used to learn those technologies while building the project.

More: https://blog.kubesimplify.com/about-my-pdf-editor-project

This article compares K0S, K3S, and MicroK8s, and the resources required for each.

More: https://portainer.io/blog/comparing-k0s-k3s-microk8s

Most Kubernetes objects, including Deployments, can have names that are ≤ 253 characters in length.

You should, however, consider restricting your names to ≤ 47 characters because of the implications on your Pod names.

More: https://pauldally.medium.com/why-you-try-to-keep-your-deployment-names-to-47-characters-or-less-1f93a848d34c

The Delayed Job Operator lets delay the start of a Kubernetes job until after a UNIX timestamp.

More: https://github.com/ContainerSolutions/delayed-jobs-operator

Master Kubernetes with our Advanced Kubernetes workshops next week!

What should you expect?

- Learn how to architect and design clusters from the ground up (in the cloud or on-prem).
- Explore the Kubernetes internal component and how the system is designed with resiliency in mind.
- Deep-dive into the networking components and observe the packets flowing into the cluster.
- Hands-on labs to test the theory with real-world scenarios!

You can sign up here: https://learnk8s.io/online-advanced-january-2023

This repository contains the instructions for setting up a Kubernetes cluster and deploying Minecraft Java edition servers.

More: https://github.com/gilesknap/k3s-minecraft