Kubesploit

This article shows why setting hostUsers: false in PodSecurityPolicies or PodSecurity admission helps prevent pods from sharing host user IDs, reducing privilege risks.

More: https://ku.bz/Cy4YDVjJ4

This project builds a low-code honeypot using LLMs behind the scenes to mimic realistic interactions while staying safe.

It supports SSH, HTTP, TCP, Prometheus metrics, Kubernetes deployment, and YAML config.

More: https://ku.bz/5665x_NRr

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/4ZQR0-Nf9

This article explains how Kubernetes v1.33 enables hybrid post-quantum key exchange (X25519MLKEM768) by default via Go 1.24 and discusses implementation challenges.

More: https://ku.bz/DzzV1cR4z

This week on Learn Kubernetes Weekly 154:

🧩 Kubernetes Observability: Troubleshooting Packet Drops
⚙️ We Broke Our EKS Cluster Autoscaler and Fixed It
🌐 Managing Kubernetes Resources Across Multiple Clusters
🐝 From kube-proxy to eBPF (Cilium)
🚧 Diagnosing API Server Communication Issues

Read it now: https://kube.today/issues/154

⭐️ This newsletter is brought to you by Heroku — Discover the thriving ecosystem of contributors, companies, and career paths in the Kubernetes World book. Reserve your copy now https://ku.bz/B0nqF7jBW

The kube-rbac-proxy is an HTTP proxy for a single upstream, that can perform RBAC authorization against the Kubernetes API using SubjectAccessReview.

More: https://ku.bz/pQqpkgLM7

Mai Nishitani, Director of Enterprise Architecture at NTT Data and AWS Community Builder, demonstrates how Model Context Protocol (MCP) enables Claude to directly interact with Kubernetes clusters through natural language commands.

You will learn:

- How MCP servers work and why they're significant for standardizing AI integration with DevOps tools, moving beyond custom integrations to a universal protocol
- The practical capabilities and critical limitations of AI in Kubernetes operations
- Why fundamental troubleshooting skills matter more than ever as AI abstractions can fail in unexpected ways

Watch (or listen to) it here: https://ku.bz/3hWvQjXxp

🌟 This episode is brought to you by Testkube—the ultimate Continuous Testing Platform for Cloud Native applications. Scale fast, test continuously, and ship confidently https://ku.bz/lnxYK3s0L

With @Birthmarkb "Hip hop back up dancer" Farrell

This case study describes how the author’s EKS cluster autoscaler broke after migrating to Amazon’s AL2023 image and how they resolved it by switching to IRSA (IAM Roles for Service Accounts) and adjusting permissions.

More: https://ku.bz/PzHb6bP62

🎥 The Making of Flux finale: From GitOps tool to platform backbone

Episode 4 brings together the platform builders—GitLab, Microsoft, and Mirantis—who are embedding Flux at the heart of their enterprise offerings.
Bryan Ross (GitLab), Jane Yan (Microsoft), Sean O'Meara, and William Rizzo (Mirantis) reveal how GitOps has evolved from experiment to essential infrastructure.

Key insights:

- Why Microsoft chose Flux for Azure Arc's managed GitOps service
- How GitLab bridges the CI/CD to infrastructure gap with Flux
- Mirantis's vision for multi-cluster platform engineering with Cordant

Plus: Bryan's take on how AI will transform GitOps workflows (spoiler: less YAML, more architecture thinking).

Watch the series finale: https://ku.bz/tVqKwNYQH

🌟 Join the Flux maintainers and community at FluxCon, November 11th in Atlanta—register here

With @Birthmarkb

cnquery is a command-line tool that lets you inspect and query your cloud, Kubernetes, and servers from one place.

More: https://ku.bz/Jml2KcQ-N

Jim Bugwadia, Co-Founder & CEO @ Nirmata, explains how to transform security compliance from a boring obligation into an exciting part of engineering culture.

He emphasizes that security is often viewed as a "day two" concern that impedes productivity, but argues there's a balance between security, productivity, and agility. Jim suggests that treating "security as code" or "compliance as code" (similar to infrastructure as code) makes security more engaging for platform engineers, allowing teams to integrate security best practices directly into their GitOps platforms and automate them rather than treating them as separate processes.

Watch the full interview: https://ku.bz/hYZXTmPV9

This article shows how to build enterprise-level secret management in an MLOps setup using tools like Sealed Secrets, Git encryption, and clear team boundaries for secure, scalable credential handling.

More: https://ku.bz/2Dlnrr0W7

This week on Learn Kubernetes Weekly 153:

🌍 Why Environments Beat Clusters for Developer Experience
🧩 Image Compatibility in Cloud Native Environments
🔁 From Terraform to Crossplane: Real-World IaC in Kubernetes for AWS
📊 Why Kube-State-Metrics Matters for Kubernetes Observability
⚙️ Optimising Kubernetes Deployment with Local Continuous Development Tooling

Read it now: https://kube.today/issues/153

⭐️ This newsletter is brought to you by Testkube - your app is Kubernetes-native, your testing should be too. Run any kind of test automation with the help of the platform built for it https://ku.bz/Zfrty_fcC

This project provides a RESTful API interface over the Bitwarden Rust SDK to enable the External Secrets Operator to fetch vault secrets securely.

More: https://ku.bz/t-WF03pc3

Project Quay runs as a service inside or outside Kubernetes, storing images in S3 or local storage.

It scans images for vulnerabilities with Clair, supports image signing, and enforces repository access and security policies via webhooks and RBAC.

More: https://ku.bz/mXXL2JPl4

Niels Claeys shares how his team built a data platform processing up to 1.5 million core hours monthly. He explains the specific optimizations they discovered through production experience, from scheduler changes to achieving 97% spot instance usage without reliability issues.

You will learn:

- How to achieve 97% spot instance adoption through strategic instance type diversification, region selection, and Spark-specific techniques
- Node pool design principles that balance Kubernetes overhead with workload efficiency
- Platform-specific gotchas like AWS cross-AZ data transfer costs that can spike bills unexpectedly

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

🌟 This episode is brought to you by Testkube—the ultimate Continuous Testing Platform for Cloud Native applications. Scale fast, test continuously, and ship confidently https://ku.bz/lnxYK3s0L

With @Birthmarkb "Almost 40" Farrell

How much does a Kubernetes engineer earn in Q3 2025?

Is Platform Engineering really eating DevOps' lunch?

We analyzed 509 Kubernetes job descriptions and discovered:

💰 North American salaries average $177,983 (€92,113 in Europe)
🚀 Platform Engineer roles jumped to 9% of positions (vs 4-7% last year)
👨‍💻 43% of jobs are for Software Engineers, but DevOps roles offer the best remote flexibility (56%)
🏠 Remote work paradox: 67% allow remote, but only 0.29% are truly location-independent

Dive into the complete State of Kubernetes Job Market Q3 2025 report: https://kube.careers/state-of-kubernetes-jobs-2025-q3

⭐️ This report is brought to you by LearnKube — get started on your Kubernetes journey through comprehensive online, in-person, or remote training. https://learnkube.com/training

From hitting the "scaling wall" to achieving operational excellence—this is how two global enterprises transformed their Kubernetes operations.

In Episode 3 of The Making of Flux, our KubeFM original series, Philippe Ensarguet from Orange and Arnab Chatterjee from Nomura share their GitOps journey with Flux, from initial challenges to production victories at massive scale.

You will learn:

- How Orange uses Flux to manage bare-metal Kubernetes through its SYLVR project.
- Why Nomura relies on GitOps to balance agility with governance in financial services.
- How Flux helps enterprises achieve resilience, compliance, and repeatability at scale.

Watch (or listen to) it here: https://ku.bz/tWcHlJm7M

🌟 Join the Flux maintainers and community at FluxCon, November 11th in Salt Lake City— https://ku.bz/L843kg0CK

With @Birthmarkb

Andrei Kvapil, CEO and Founder of Aenix, explains how GitOps tools handle access control and restrict deployments. He highlights that GitOps provides:

- Real-time inspection of changes before deployment
- Visibility of exact differences between desired and existing cluster states
- Control at both deployment and review phases

Andrei outlines a strategy using a pull request model to manage access:

1. Configure the GitOps operator to watch the main branch
2. Restrict direct pushes to the main branch
3. Implement a pull/merge request workflow
4. Review all changes before they reach the main branch

This approach allows companies to predict and control what will be deployed, leveraging GitOps principles while maintaining strict access control.

Watch the full episode: https://ku.bz/0mvh5s4Ld

This week on Learn Kubernetes Weekly 152:

🌀 A Journey Through Kafkian SplitDNS in a Multitenant Kubernetes Offering
⚙️ Under the hood: Amazon EKS Auto Mode
👩‍💻 Most Cloud-Native Roles are Software Engineers
🚀 Start Sidecar First: How To Avoid Snags
📈 Enhancing Kubernetes Event Management with Custom Aggregation
⚡ Non-HA Kubernetes Gotchas: Downtime and Autoscaling Pitfalls with Single Replica Workloads

Read it now: https://kube.today/issues/152

⭐️ This newsletter is brought to you by AWS — Fully automate your Kubernetes clusters with Amazon EKS Auto Mode https://ku.bz/xZWD-2-Rk