This tutorial shows how to deploy & use the Tailscale Kubernetes operator to share private Kubernetes apps securely.

More: https://ku.bz/fGGyM_1tK

KSOPS is a kustomize exec plugin for SOPS encrypted resources.

KSOPS can be used to decrypt any Kubernetes resource, but is most commonly used to decrypt encrypted Kubernetes Secrets and ConfigMaps.

More: https://ku.bz/ynzVK8y_0

Kubernetes in action: from pods to production-ready clusters!

📆 Learnk8s runs a 4-day online Advanced Kubernetes course in May!

You will learn how to:

1️⃣ Architect and design resilient clusters (in the cloud or on-prem).
2️⃣ Master deployment strategies and resource management.
3️⃣ Wire the cluster network and trace packets flowing through it.
4️⃣ Secure your cluster with the latest best practices.
5️⃣ Autoscale, manage data and stateful workloads, monitoring and more.

What you need to know:

✅ 40% lecture, 60% hands-on labs.
✅ Small groups for personalized learning.
✅ Progresses from basics to advanced topics.
✅ Lifetime access to course materials and Slack community.

Ticket and info: https://ku.bz/Zz7jkHy7q

Corporate training: https://learnk8s.io/corporate-training

This Simulated EKS attack shows command injection in a web app escalates to cluster takeover via JWT theft, IMDS abuse, and AWS credential misuse.

More: https://ku.bz/0k8y0kWLM

Harsha Koushik, a Security Researcher and Technical Product Manager at Palo Alto Networks, discusses the importance of container efficiency for developers.

He emphasizes the need for containers that can handle traffic spikes and scale quickly, for example, from 50 to 500 pods within two minutes.

Harsha explains that minimal containers are crucial as they reduce start time, space in registries, and pull time, making them more efficient and responsive to traffic demands.

Watch the full episode: https://ku.bz/n_sJ04xMY

AWS ACM Private CA is a module of the AWS Certificate Manager that can set up and manage private CAs.

This project acts as an addon to cert-manager that signs off certificate requests using AWS PCA.

More: https://ku.bz/jRGYV3XzS

Bottlerocket is a free and open-source Linux-based operating system meant for hosting containers.

It is specifically designed to work with your container orchestrator (like Kubernetes) to automate the containers' lifecycle in your cluster.

More: https://github.com/bottlerocket-os/bottlerocket

Confidential Containers simplifies confidential computing via "vault" sealed secrets, managed by Trustee components (KBS, AS, RVPS), ensuring secure secret access within Trusted Execution Environments (TEE) while maintaining Kubernetes compatibility.

More: https://ku.bz/l1LjZVL0W

This week on Learn Kubernetes Weekly 127:

👯‍♀️ Using database read replicas in distributed systems
🕵️‍♂️ Kubernetes Cluster Networking: Differences Between Flannel and Calico
💰 The value of NGINX Upstreams
🤔 What is ProviderID in Kubernetes, Cluster API, and Cloud Controller Manager?
👌 Improving Kubernetes-Mixin API Server Rules Consistency

Read it now: https://learnk8s.io/issues/127

⭐️ This issue is sponsored by KubeFM — the new Kubernetes podcast episodes are starting next week. Don't miss them! https://kube.fm

KubeLinter is a static analysis tool that checks Kubernetes YAML files and Helm charts to ensure that applications adhere to best practices.

More: https://ku.bz/5V9YXG-Br

Over 300,000 Prometheus servers and exporters are exposed to the internet without authentication, posing significant security risks, including information disclosure, DoS attacks, and remote code execution through "RepoJacking" vulnerabilities

More: https://ku.bz/kfm9gDp_x

Sealed Secrets provides declarative Kubernetes Secret Management in a secure way.

Since the Sealed Secrets are encrypted, they can be safely stored in a code repository.

More: https://ku.bz/Gpl8p7ZQB

In this tutorial, you'll explore an approach to setting up a Keycloak token exchange in a local Kubernetes environment with Istio ingress.

More: https://ku.bz/bqrqDBxNw

Andrew Charlton, Staff Software Engineer at Timescale, explains how they replaced Kubernetes StatefulSets with a custom operator called Popper for their PostgreSQL Cloud Platform.

You will learn:

- Why StatefulSets fall short for managing high-availability PostgreSQL clusters, particularly around pod ordering and volume management
- How Timescale's instance matching approach solves complex reconciliation challenges when managing heterogeneous database workloads
- The benefits of implementing discrete, idempotent actions rather than workflows in Kubernetes operators

Watch (or listen to) it here: https://ku.bz/fhZ_pNXM3

🌟 This episode is brought to you by [MetalBear] mirrord — run local code like in your Kubernetes cluster without deploying first https://ku.bz/lHtPqsdjq

With @Birthmarkb "Yo quiero Taco Bell" Farrell

Kubeconform is a Kubernetes manifests validation tool.

Similar to Kubeval, but with the following improvements:

1. High performance.
2. Remote or local schema locations
3. Up-to-date schemas for all recent versions of Kubernetes.

More: https://ku.bz/4MJn8zKDH

This week on Learn Kubernetes Weekly 128:

🤔 Why Pull Base Images When You Can Build Your Own?
☁️ Scaling in the Clouds: Istio Ambient vs Cilium
🧹 Kubernetes configuration linting tools
♻️ Git happens: how Argo CD took over our deployments
🤗 I Stopped Using Kubernetes: Our DevOps Team Is Happier Than Ever

Read it now: https://learnk8s.io/issues/128

⭐️ This issue is brought to you by Akamai Cloud — build and deliver low-latency, edge native applications on the world's most distributed cloud computing platform https://ku.bz/93rJKSr_V

Integrate Azure Policy with AKS to automatically enforce Kubernetes security standards.

Learn how to use built-in policies, prevent privileged containers, and implement compliance checks across your cluster infrastructure.

More: https://ku.bz/PkGQptrMt

Trousseau is an open-source project that leverages the Kubernetes Key Management Service (KMS) provider framework to secure Secrets within the Kubernetes etcd instance using a Transit Key stored within a remote KMS.

More: https://ku.bz/lM2hC3Hkz

🚀 KubeCrash is Coming! Mark Your Calendars for May 8th!

KubeCrash brings together open source maintainers and industry experts to share cloud native best practices specifically for platform engineers.

At this event, you'll learn about:

- Platform engineering approaches that work in the real world
- Observability implementation strategies
- Kubernetes management techniques
- Practical solutions used by companies like Intuit, Bloomberg, and Capital One

Join to hear from an exceptional lineup of speakers including @Birthmarkb (KubeFM), Ramiro Berrelleza (Okteto), Guy Menahem (The Platformers Community), and many more.

Plus, it's completely FREE and supports the "Deaf Kids Code" charity.

📆 May 8, 2025
🕓 4 pm CET | 10 am ET | 7 am PT
📍 Online

More info: https://ku.bz/KD73z_cTY

Learn how to secure applications by deploying Keycloak on Kubernetes using Helm, automating user management, implementing strong security policies, and creating a scalable identity infrastructure with minimal manual configuration.

More: https://ku.bz/g3BC2BCw_

Cerbos is an authorization layer that enables you to define context-aware access control rules for your application resources in simple, intuitive YAML policies managed and deployed via your Git-ops infrastructure.

More: https://ku.bz/_l3Jd0L1b