Learn Kubernetes weekly — issue 18

15 Mar 2023

  1. Kcp: Kubernetes-like control plane

    Erkan Erol

    kcp is a control plane for workloads on many clusters.

    In this article, you will explore how to use it to manage multiple tenants:

    1. In a single cluster with workspaces (isolated namespaces).
    2. In multiple clusters with SyncTarget and Placements.
  2. Backup and restore containers with Kubernetes checkpointing API

    Martin Heinz

    Kubernetes v1.25 has introduced Container Checkpointing API.

    This article will teach you how to use it for container backup and restore or forensic analysis.

  3. Benchmarking Kubernetes node initialization

    Buster Styren, Stephen Hoogendijk

    In this benchmark, you will compare cluster initialization time across 8 managed Kubernetes providers.

  4. Tuning JVM containers for better CPU and memory utilisation in Kubernetes

    Anurag Prakash

    In this article, you'll discuss JVM warmup issues, high heap memory utilisation and how those affect Java apps deployed in Kubernetes.

    You'll then learn how to work around them.

  5. Kubernetes mutating webhook with Python and Fastapi

    Kristijan Mitevski

    In this article, you will learn how to easily create a mutating webhook to intercept Kubernetes objects and modify them on the fly.

  6. Abusing pod priority

    Nuno Adrego

    Pod Priority can be useful for some use cases, such as prioritizing critical applications, but definitely can catch you off guard if you don't have the right guardrails in place.

    This post illustrates the potential consequences of not having them.

Articles worth checking out:

  1. Write your Kubernetes infrastructure as go code — manage AWS services

    Abhishek Gupta

    AWS ACK helps bridge the gap between traditional Kubernetes resources and AWS services by allowing you to manage both from a single control plane.

    In this tutorial, you learn how to use it to provision DynamoDB and an app deployed on Kubernetes.

  2. Hashicorp Vault cluster on the AWS Elastic Kubernetes Service

    Prithu Adhikary

    In this tutorial, you will learn how to deploy a Vault cluster on EKS with a Helm chart and consume the secrets from a Spring Boot app.

    • Software Engineer with Cast AI

    • Salary: €72K to €96K a year

    • Location: remote from Albania, Andorra, Austria, Belarus, Belgium

    • Tech stack: Kubernetes, AWS, GCP, Azure, ArgoCD, Go, Python, Gitlab, Prometheus

    • DevOps Engineer with Nordcloud

    • Salary: CHF 100K to CHF 130K a year

    • Location: remote from Switzerland

    • Tech stack: Kubernetes, Azure, AWS, OpenShift, Helm, Docker, Python, Javascript, SQL, Terraform

Discover more Kubernetes jobs on Kube Careers →

  1. grafana/tanka

    Tanka is the clean, concise and flexible alternative to YAML for your Kubernetes cluster.

  2. box/kube-iptables-tailer

    kube-iptables-tailer is a service that gives you better visibility on networking issues in your Kubernetes cluster by detecting the traffic denied by iptables and surfacing corresponding information to the affected Pods via Kubernetes events.

  3. we-dcode/kubetunnel

    KubeTunnel lets you develop locally while being connected to Kubernetes.

  4. wagoodman/dive

    dive is a tool for exploring a docker image, layer contents, and discovering ways to shrink the size of your Docker/OCI image.

  5. jodevsa/wireguard-operator

    wireguard-operator is a WireGuard operator created to easily provision a VPN in a Kubernetes cluster.

Other interesting projects:

Upcoming Kubernetes events

  1. Mar


    Why you need performance tests for proper Kubernetes scaling

    Online meetup organized by The San Francisco Java User Group.

    • This is a virtual event

    • This is a free event.

  2. Mar


    Kubernetes Community Days Ukraine

    Online conference organized by KCD Ukraine Fundraiser 2023.

    • This is a virtual event

    • This event requires an entrance fee

  3. Mar


    Gaining insight into GitOps

    Online webinar organized by Day-To-Day DevOps.

    • This is a virtual event

    • This is a free event.

  4. Mar


    The DEVOPS Conference

    Online conference organized by Eficode.

    • This is a virtual event

    • This is a free event.

  5. Mar


    Kubernetes Community Days Israel

    In-person conference organized by KCD Israel 2023.

    • Location: Tel-Aviv, IL

    • This event requires an entrance fee

Discover more Kubernetes events on Kube Events →

Kubernetes Call for Papers

  1. expired

    Devopsdays Seattle

    The Call For Paper was open until 20 March 2023 at UTC. More info →
    • Location: Seattle, US

    • In-person conference organized by Devopsdays.

    • The conference starts on the 1 August 2023.

    • Apply here

Until next time!

— Dan

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