In this article, you will learn a practical framework to troubleshoot applications deployed on Kubernetes.

1. Is it there?
2. Why isn't it working?
3. It starts, but doesn't work.
4. There are too many pods!
5. But can you `curl` it?

More: https://blog.alexellis.io/troubleshooting-on-kubernetes

mirrord lets you easily mirror traffic from your Kubernetes cluster to your development environment.

It comes as both Visual Studio Code extension and a CLI tool.

More: https://github.com/metalbear-co/mirrord

In this article, you will look at how you can leverage the Kubernetes Python Client library to automate any tasks. Examples:

- Triggering a rollout.
- Scaling a deployment.
- Applying taints.
- Retrieving metrics.
- Backing up all resources in a namespace.

More: https://martinheinz.dev/blog/73

hetzner-k3s is a CLI tool (based on a Ruby gem) to quickly create and manage Kubernetes clusters in Hetzner Cloud using the lightweight Kubernetes distribution k3s from Rancher.

More: https://github.com/vitobotta/hetzner-k3s

In this article, you will learn how to use GitHub Actions to automatically test, build and deploy your Docker images to Kubernetes on every commit to the main branch.

More: https://nicwortel.nl/blog/2022/05/27/continuous-deployment-to-kubernetes-with-github-actions

In this article, you will learn how to build a Raspberry PI Kubernetes cluster with K3s and:

1. Deploy an MQTT broker using Helm.
2. Monitor apps on each Raspberry Pi.
3. Drive an LED strip on one specific device.

More: https://medium.com/thinkport/how-to-build-a-raspberry-pi-kubernetes-cluster-with-k3s-76224788576c

Canary release is a deployment technique for releasing a new version of your software into production by slowly rolling out changes to a small subgroup of users.

In this article, you'll learn how to perform a canary release using the Emissary Ingress.

More: https://blog.getambassador.io/simple-canary-release-with-emissary-ingress-5d68d6fdd8fd

A collection of more than 20 kubectl CLI tips from the community.

More: https://learncloudnative.com/blog/2022-05-10-kubectl-tips

In this article, you will cover the 6 most critical metrics based on Kubernetes's metadata that form a good baseline for monitoring your workloads and ensuring they're in a healthy state.

More: https://betterprogramming.pub/6-metrics-to-watch-for-on-your-k8s-cluster-76d58f08397f

Kubernetes comes with many tools to help you manage your clusters, including kubectl set-context.

In this guide, you'll learn how to use this command to manipulate contexts in your kubeconfig file, as well as best practices for doing so.

More: https://containiq.com/post/kubectl-config-set-context-tutorial-and-best-practices

kcount counts Kubernetes objects across namespaces and clusters.

It can be used as a CLI tool or as a daemon (service) exposing Prometheus metrics.

More: https://github.com/pan-net-security/kcount

In this article, you will learn about debugging and troubleshooting Kubernetes pods using ephemeral containers.

More: https://afarid.medium.com/debugging-kubernetes-pods-deep-dive-d6b2814cd8ce

This repository contains the notes taken during study sessions for the Certified Kubernetes Administrator (CKA).

More: https://github.com/ismet55555/Certified-Kubernetes-Administrator-Notes

A lot of engineers advise the use of CPU limits on every container as Kubernetes best practice.

Unfortunately, CPU limits should rarely be used, if used at all!

This article explains why.

More: https://netdata.cloud/blog/kubernetes-throttling-doesnt-have-to-suck-let-us-help

Kubernetes is neither secure by default, nor by itself.

You absolutely can, and must, harden its configuration.

This article summarises the NSA/CISA guidelines on security hardening Kubernetes.

More: https://elastisys.com/nsa-cisa-kubernetes-security-hardening-guide-and-beyond-for-2022

A curated list of awesome Kubernetes tools and resources.

More: https://github.com/tomhuang12/awesome-k8s-resources

Learnk8s and Linode are launching a three-part, free educational program on Kubernetes scaling.

Each session comes with a webinar, code samples and a step-by-step article:

- Unit 1: "Request-based autoscaling in Kubernetes: scaling to zero and back" (21st of Sept)
- Unit 2: "Proactive cluster autoscaling in Kubernetes" (28th of Sept)
- Unit 3: "Scaling Kubernetes to multiple clusters and regions" (5th of Oct)

What you can expect:

- A live webinar (Chris, Salman & Daniele will present them). The event is recorded, and you can watch it later too.
- A step-by-step tutorial on Linode's blog where you can try everything we demo live.
- A collection of noscripts and resources helpful to understand and (if you want) extend our code.

You can sign up here: bit.ly/k8s-scale

Master Kubernetes with this a 4-day Advanced Kubernetes workshop on the 22nd of September (in 3 weeks)!

_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-september-2022

This playbook will build a Kubernetes cluster with k3s and MetalLB via Ansible.

More: https://github.com/clanktron/k3s-ansible

Hello,

We wanted to share some discounts we received from the Conference organisers. We hope you will find these helpful.

We share more in our newsletter. You can subscribe to our Newsletter here: https://kube.events


1. SKILup Festival: London (50% off)
Date: September 13, 2022
Discount code: https://www.skilupfestival.io/london-22?promo=KubeEvents

2. SREday 2022, London (30% off)
Date: September 15-16, 2022 https://checkout.eventcreate.com/sreday/select-buy Coupon code: SREDAY-KUBE-EVENTS

3. DevOpsDays Washington DC 2022 (20% off)
Date: September 15-16, 2022 https://www.eventbrite.com/e/345684861727/?discount=K8SEVENTSFRIENDS
The Strange Loop conference ($75 off) Date: September 22-24, 2022
Tickets page: https://ti.to/strange-loop/2022
Coupon code: KUBE

Master Kubernetes with this a 4-day Advanced Kubernetes workshop on the 22nd of September (in 2 weeks)!

_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-september-2022