k8s-pod-restart-info-collector is a simple Kubernetes customer controller that watches for Pods changes and collects K8s Pod restart reasons, logs, and events to Slack channels when a Pod restarts.

More: https://github.com/airwallex/k8s-pod-restart-info-collector

Is Kubernetes networking similar to vSphere's?

No, but it is possible to draw analogies between the two.

In this article, you will compare Kubernetes to vSphere networking.

More: https://medium.com/@ryanjjacobs/kubernetes-networking-for-vcenter-administrators-8d78bb2f0efd

This repository contains the code for Ekkremis: a Prometheus-based alert manager to resolve kubernetes pods pending issues.

More: https://github.com/oslabs-beta/Ekkremis

This week on the Learn Kubernetes Weekly:

🚦 Graceful shutdown and zero downtime deployments
⚙️ Automated rollback to 2100 services with Argo
👀 Boosting container runtime observability with Open Telemetry
🐌 Mitigating slow pulls on AKS

Read it now: https://learnk8s.io/learn-kubernetes-weekly

In this article, you will discuss the challenges of how to upgrade clusters with breaking changes and use kube-no-trouble to test the upgrade path.

More: https://medium.com/linux-shots/find-deprecated-api-resources-used-in-a-kubernetes-cluster-44756c1126c8

In this article, you will learn a few strategies to (gradually) migrate your EKS cluster from the VPC CNI to Cilium (useful if you need NetworkPolicies).

More: https://medium.com/codex/migrate-to-cilium-from-amazon-vpc-cni-with-zero-downtime-493827c6b45e

CKAD Exercises is a set of exercises to help you prepare for the Certified Kubernetes Application Developer exam.

More: https://github.com/dgkanatsios/CKAD-exercises

Changes to a Secret of ConfigMap mounted into a pod can take 60 to 90 seconds to propagate to the container.

In this article, you'll discuss how you could speed up the process with a Kyverno policy.

More: https://neonmirrors.net/post/2022-12/reducing-pod-volume-update-times

This tutorial will teach you how to scan secrets in environment variables using Kubewarden and the env-variable-secrets-scanner-policy.

More: https://kubewarden.io/blog/2022/10/env-var-secrets

Finch is an open-source client for container development.

It works with containerd for container management, and with BuildKit to handle Open Container Initiative (OCI) image builds.

More: https://github.com/runfinch/finch

In this article, you will learn how to customize the image repository in Kubeadm.

In the process, you'll follow Sina's journey into reading the Kubernetes source code to debug an issue with the CoreDNS container image.

More: https://medium.com/@ssttehrani/customize-the-kubeadm-image-repository-c33ebdef7d82

kptop is a command-line tool for Kubernetes that provides pretty monitoring for Nodes, Pods, Containers, and PVCs resources on the terminal through Prometheus metrics.

More: https://github.com/eslam-gomaa/kptop

The Otterize intents operator is a tool used to easily automate the creation of network policies and Kafka ACLs in a Kubernetes cluster using a human-readable format via a custom resource.

More: https://github.com/otterize/intents-operator

aws-auth-manager is a Kubernetes controller designed to manage the aws-auth ConfigMap in EKS using a new AWSAuthItem CRD.

More: https://github.com/maruina/aws-auth-manager

k8s-csi-s3 is a CSI driver for S3 (or S3 compatible) storage.

This can dynamically allocate buckets and mount them via a fuse mount into any container.

More: https://github.com/yandex-cloud/k8s-csi-s3

metalk8s is an opinionated Kubernetes distribution with a focus on long-term on-prem deployments.

More: https://github.com/scality/metalk8s

kube-ps1 is a script that lets you add the current Kubernetes context and namespace configured on kubectl to your Bash/Zsh prompt strings (i.e. the $PS1).

More: https://github.com/jonmosco/kube-ps1

This week on the Learn Kubernetes Weekly:

🔨 Reducing Pod volume update times
👯‍♀️ Multi-cluster with Cluster API and ArgoCD
💥 From Amazon VPC CNI to Cilum with zero downtime
🧐 Intelligently estimating resource needs

Read it now: https://learnk8s.io/learn-kubernetes-weekly

This 3-part series aims at providing a good understanding of container resource sizing in Kubernetes.

It also includes a case study with 50m VMs and guides you through the thought process of selecting the right requests and limits for memory and CPU.

More: https://medium.com/@vvsevel/a-guide-to-kubernetes-application-resource-tuning-part-1-bf0ba04db10

In this guide, you will discuss how to create key/certificate pairs using OpenSSL to facilitate secure communication between Kubernetes Cluster components.

More: https://ahmedy.hashnode.dev/creating-tls-certificates-for-k8s-components-with-openssl

Your Kubernetes Pods have internal IPs, but can since Pods are created and destroyed, can you rely on those?

Discover services and their types: ClusterIP, NodePort and LoadBalancer.

More: https://sysdig.com/blog/kubernetes-services-clusterip-nodeport-loadbalancer