Learn Kubernetes weekly — issue 21
Articles
Reducing Pod volume update times
neonmirrors.net
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.
Multi-cluster management for Kubernetes with Cluster API and ArgoCD
aws.amazon.com
Cluster API is a tool that simplifies the process of maintaining multiple clusters by providing a single API and toolset to use.
This article combines it with Argo CD to continuously deliver updates to multiple clusters.
Helm: data sharing between parent and child chart
levelup.gitconnected.com
In this article, you will explore a few strategies to share data between Helm charts:
- Overriding values from a parent chart.
- Making child chart data available to the parent chart.
- Global chart values.
- Sharing templates with subcharts.
Vertical pod autoscaler in Kubernetes
code.egym.de
In this article, you will learn how to use the Vertical Pod Autoscaler and:
- Autoscale vertically your services, based on resource metrics.
- Prevent downtime during pod eviction thanks to Pod Disruption Budget.
Customize the kubeadm image repository
medium.com
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.
Kubernetes sidecar container injection
medium.com
In this article, you'll learn how to build a Kubernetes controller to mutate pods automatically based on specific annotations or labels and inject one or more sidecar containers into them.
Articles worth checking out:
Tutorials
Getting started with the Azure Kubernetes Service
adamtheautomator.com
In this tutorial, you'll learn how to get started with Microsoft Azure Kubernetes Service (AKS) using the Azure Portal and the Azure CLI.
Authentication and authorization in Kubernetes: client certificates and role based access control
medium.com
In this tutorial, you'll learn how to authenticate and authorize a user to access Kubernetes Clusters with client certificates.
Intelligently estimating your Kubernetes resource needs
faun.pub
In this tutorial, you will learn how to use the Vertical Pod Autoscaler and Goldilocks to guess the correct requests and limits for your Pods.
Building a micro-services application with PHP, Kubernetes and Skaffold
benosborne.tech
In this tutorial, you will learn how to set up and deploy a micro-services architecture using Kubernetes, Laravel Lumen and Skaffold.
Kubernetes jobs
DevOps Engineer with FluentStream
Salary: $125K to $150K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, Docker, Java, Typescript, CDK, Datadog
Operations Engineer with Staysure
Salary: £65K to £75K a year
Location: remote from the United Kingdom
Tech stack: Kubernetes, AWS
DevSecOps Engineer with Shelby Finance
Salary: £35K to £45K a year
Location: remote from the United Kingdom
Tech stack: Kubernetes, Helm, Terraform, Gitlab
Discover more Kubernetes jobs on Kube Careers →
Code & tools
github.com/eslam-gomaa
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.
github.com/maruina
aws-auth-manager is a Kubernetes controller designed to manage the aws-auth ConfigMap in EKS using a new AWSAuthItem CRD.
github.com/otterize
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.
github.com/kubeshark
Kubeshark, the API Traffic Viewer for kubernetes, provides deep visibility and monitoring of all API traffic and payloads going in, out and across containers and pods inside a Kubernetes cluster.
github.com/scality
metalk8s is an opinionated Kubernetes distribution with a focus on long-term on-prem deployments.
Other interesting projects:
Upcoming Kubernetes events
Apr
6
In-person conference organized by Devopsdays.
Location: Nashville, TN, USA
This event requires an entrance fee
Apr
12
In-person conference organized by Devopsdays.
Location: Raleigh, USA
This event requires an entrance fee
Apr
16
In-person conference organized by Cloud Native Rejekts.
Location: Amsterdam, NL
This event requires an entrance fee
Use 30Rejekts_DiscountSponsEU23 to get 30% off
Apr
24
Online workshop organized by Learnk8s.
This is a virtual event
This event requires an entrance fee
May
4
In-person conference organized by Softconf.
Location: Athens, GR
This event requires an entrance fee
May
10
In-person conference organized by Devoxx UK.
Location: London, UK
This event requires an entrance fee
Jun
8
Online conference organized by PlatformEngineering.org.
This is a virtual event
This is a free event.
Until next time!
— Dan