Learn Kubernetes Weekly issue 79
Basics of observing Kubernetes, From blue to green: EKS clusters upgrade, deeper dive of kube-scheduler, writing custom kubectl commands
15 May 2024
This newsletter is brought to you by StormForge — stop setting Kubernetes requests and limits. Leave it to machine learning and automation.
Articles
The basics of observing Kubernetes: a bird-watcher's perspective
Miguel Luna
This detailed article discusses how and what to observe in a Kubernetes cluster.
It focused on observing the infrastructure over observing applications, giving you a view from the perspective of a cluster administrator.
An intro to autonomous cost optimization on Kubernetes
Erwin Daria, Yofti Makonnen
In this 3-part article, you will learn how to optimize your costs on Kubernetes using Karpenter and verify your findings with EKS-Node-Viewer.
The articles explain some of the other tools you might want to consider (e.g. VPA) and their limitations.
sponsored
From blue to green: optimizing AWS EKS clusters upgrade
Kareem Mohamed
The article describes how OneFootball implemented AWS EKS cluster upgrades with a Blue/Green strategy, focusing on smooth transitions, risk reduction, and reliability.
A deeper dive of kube-scheduler
This article provides a deep dive into kube-scheduler, focusing on customizing preemption for ML workloads.
Key topics covered include misconceptions, an overview of the scheduling framework, and a detailed explanation of default preemption.
Vultr Kubernetes Engine (VKE) : pitfalls and shortcomings
Jonathan
In this article, the author reviews Vultr Kubernetes Engine (VKE) and notes its limitations, such as the "sub-user" issue with API keys.
The article discusses VKE's autoscaling and compares it with EKS and GKE.
How does kubectl work: writing custom kubectl commands
Hasan Bingölbali
The article explores how kubectl works, focusing on the authentication process and the REST API calls.
It also provides a step-by-step guide on how to fork the Kubernetes repository and write your commands.
Articles worth checking out:
Autonomous rightsizing for Kubernetes workloads
StormForge
Double your Kubernetes resource utilization and unburden developers from sizing complexity with the industry's first HPA-compatible vertical pod rightsizing solution.
Tutorials
Intro to Kubernetes autoscaling and best practices for successful implementations
Nikita
Learn about the complexities and best practices of autoscaling in Kubernetes, including horizontal, vertical, and cluster scaling methods and advanced projects like Karpenter and KEDA.
sponsored
Monitoring a multi-cluster Kubernetes deployment
Dan Dascalescu
In this tutorial, you will learn how to aggregate data from various sources to achieve centralized real-time monitoring across multiple highly resilient clusters using Thanos.
Getting started with Airflow: deploying your first pipeline on Kubernetes
Rupert Arup
The article provides a tutorial on deploying Airflow to Kubernetes using minikube, covering topics such as loading DAGs to Airflow and adding dependencies to the Airflow image.
Kubernetes jobs
🔥 Software Engineer with Mercari
Salary: ¥4.8M to ¥6.34M a year
Location: remote from Japan
Tech stack: Kubernetes, AWS, GCP, Go, SQL, Javascript, Java, PHP, Swift, Kotlin
Site Reliability Engineer with Commify
Salary: £70K to £75K a year
Location: based in the office (and remote from home) in Nottingham, GB
Tech stack: Kubernetes, Azure, Shell, Python, Ruby, C#, Powershell, Terraform, Azure DevOps, Jenkins
Software Engineer with Monta
Salary: kr. 540K to kr. 660K a year
Location: based in the office (and remote from home) in Copenhagen, DK
Tech stack: Kubernetes, AWS, Docker, Java, Kotlin, Redis, MySQL, Grafana, Prometheus, Loki
DevOps Engineer with PressReader
Salary: US$110K to US$130K a year
Location: based in the office (and remote from home) in British Columbia, CA
Tech stack: Kubernetes, AWS, Azure, GCP, On-premise, ArgoCD, Docker, Openstack, Terraform, Azure DevOps
Discover more Kubernetes jobs on Kube Careers →
Code & tools
Chart-testing: linting and testing charts
ct is a tool for testing Helm charts.
It is meant for linting and testing pull requests and automatically detects charts changed against the target branch.
k'exp is for:
- Learning and exploring Kubernetes capabilities.
- Application development (object graph presets for every app).
- Controller and operator development (dynamic object graphs).
- Postman-like client and request builder for Kubernetes API.
GitOps Bridge is a community project that aims to showcase best practices and patterns for bridging the process of creating a Kubernetes cluster and subsequently managing everything through GitOps.
It focuses on using ArgoCD or FluxCD.
Kubernetes Goat is a **Vulnerable by Design" cluster environment where you can learn and practice Kubernetes security using an interactive, hands-on playground.
netfetch: scan Network Policies
netfetch is a tool designed to scan Kubernetes namespaces for network policies and check whether a network policy targets your workloads.
Other interesting projects:
Upcoming Kubernetes events
May
22
Kubernetes Community Days New York 2024
In-person conference organized by KCD New York.
Location: New York, NY, USA
This event requires an entrance fee
Use LK8SINKCDNY2024 to get 10% off
May
20
Advanced Kubernetes course (London)
In-person workshop organized by Learnk8s.
Location: London, UK
This event requires an entrance fee
May
20
Online & in-person conference organized by Data Miner.
Location: Vilnius, LT and virtual
This event requires an entrance fee
Use kube15%|doeu24 to get 15% off
May
22
In-person conference organized by OpenInfra Foundation.
Location: Paris, FR
This event requires an entrance fee
Use KUBE10 to get 10% off
May
16
Understanding Amazon EKS blueprints with Amazon EKS add-ons for clusters
Online meetup organized by AWS User Group Women Bay Area.
This is a virtual event
This is a free event.
Discover more Kubernetes events on Kube Events →
Kubernetes Call for Papers
expired
The Call For Paper was open until 10 June 2024 at UTC. More info →
Location: Salt Lake City, UT, USA and virtual
Online & in-person conference organized by Linux Foundation.
The conference starts on the 12 November 2024.
- Apply here
expired
Kubernetes Community Days Lima, Perú 2024
The Call For Paper was open until 16 May 2024 at UTC. More info →
Location: Lima, PE
In-person conference organized by KCD Lima, Perú.
The conference starts on the 20 July 2024.
- Apply here
expired
The Call For Paper was open until 19 May 2024 at UTC. More info →
Location: Tokyo, JP
In-person conference organized by Linux Foundation.
The conference starts on the 27 August 2024.
- Apply here
expired
The Call For Paper was open until 4 June 2024 at UTC. More info →
Location: London, UK
In-person conference organized by KCD UK.
The conference starts on the 23 October 2024.
- Apply here
expired
Kubernetes Community Days Washington DC 2024
The Call For Paper was open until 3 June 2024 at UTC. More info →
Location: Washington, DC, USA
In-person conference organized by KCD Washington DC.
The conference starts on the 24 September 2024.
- Apply here
expired
Kubernetes Community Days Austria 2024
The Call For Paper was open until 22 June 2024 at UTC. More info →
Location: Vienna, AT
In-person conference organized by KCD Austria.
The conference starts on the 10 October 2024.
- Apply here
expired
The Call For Paper was open until 14 June 2024 at UTC. More info →
Location: Santa Clara, CA, USA
In-person conference organized by DevNetwork.
The conference starts on the 5 November 2024.
- Apply here
expired
The Call For Paper was open until 20 May 2024 at UTC. More info →
This is a virtual event
Online conference organized by KubeVirt.
The conference starts on the 25 June 2024.
- Apply here
expired
The Call For Paper was open until 24 May 2024 at UTC. More info →
Location: London, UK
In-person conference organized by Devopsdays.
The conference starts on the 26 September 2024.
- Apply here
Until next time!
— Dan
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