⎈ DNS on AWS, ConfigMap Volume Delays, Command Injection: kubectl-mcp-tool, PostgreSQL on Harvester, Cutting Cassa…

⎈ DNS on AWS, ConfigMap Volume Delays, Command Injection: kubectl-mcp-tool, PostgreSQL on Harvester, Cutting Cassandra Costs

Daniele Polencic

Oct 22

This issue is brought to you by Teleport — stop sharing credentials and give every engineer, service, and AI agent a login that expires automatically.

📚 Articles

1. DNS is weird inside Kubernetes on AWS

2. How to Eliminate Shared Production Kubeconfigs

3. TIL: Kubernetes ConfigMap Volume Mounts Are Eventually Consistent — Not Immediately Consistent

4. CVE-2025-69902: OS Command Injection in kubectl-mcp-tool

5. Building the Foundation for PostgreSQL Lifecycle Management in a DBaaS on Harvester

6. We Cut Our Cassandra Bill From $30K to $10K a Month by Self-Hosting on Kubernetes

7. How I Saved Azure Compute Costs by Automatically Shutting Down Our Dev Kubernetes Cluster Every Night

8. Managing Hundreds of Kubernetes Overlays at Scale with Kustomize

🌟 Stop sharing passwords, SSH keys, and static credentials.

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📖 Tutorials

1. SSO-Backed kubectl Access Across Many Clusters

2. Building a Production-Grade Apache Spark Platform on Kubernetes

3. Scaling Long-Running AI Agents: Async Workers on Kubernetes with LangGraph and KEDA

4. Distributed k6 Load Testing on Amazon EKS with Kubernetes Jobs and Dedicated Managed Node Groups

5. Service Discovery and Service Mesh in .NET

6. Building a Kubernetes Admission Controller: Automating Security Policy Enforcement

💼 Kubernetes jobs

DevOps Engineer 💰 $120K to $210K a year · 🌎 remote from

DevOps Engineer 💰 $110K to $200K a year · 🏢 based in the office in Huntsville, AL, USA

DevSecOps Engineer 💰 $140K to $160K a year · 🌎 remote from

DevSecOps Engineer 💰 $145K to $207K a year · 🌎 remote from

Account Executive, Commercial 💰 $0 to $517.18K a year · 🌎 remote from

👉 Discover more opportunities on Kube Careers.

🛠 Tools and libraries

1. KubeDesk: Desktop Kubernetes Management Without kubectl

2. SnowOps Labs: Hands-On Kubernetes Failure Lab

3. Diagnose Broken kubeconfigs with kubectl-config-doctor

4. Kubernetes-Native Orchestration for NVIDIA BlueField DPUs

5. High-Performance NVMe-oF Storage for Kubernetes

📅 Upcoming Kubernetes events

🔥 Advanced Kubernetes course 📅 Oct 22

🔥 Kubernetes Community Days Nigeria 2026 📅 Oct 24

🔥 Cloud Native Days Norway 📅 Oct 27

🔥 ContainerDays & AI Context Singapore 📅 Oct 28

🔥 Dutch Cloud Native Day 📅 Oct 29

👉 You can find more events on Kube Events.

📢 Call for papers closing soon

🔥 Big Data Europe ⏳ closes Nov 23

🔥 Devopsdays Los Angeles ⏳ closes Nov 1

APE 2026 ⏳ closes Dec 12

🔥 Open Source Conference Kolkata ⏳ closes Nov 5

🔥 Devopsdays Raleigh ⏳ closes Jan 1

AI Conf Asia ⏳ closes Nov 1

Platform Engineering 2026 ⏳ closes Oct 22

🔥 Build It Summit ⏳ closes Oct 31

ContainerDays & AI Context London 2027 ⏳ closes Dec 1

👉 You can find more Call for Papers on Kube Events.

Until next time!

— Gulcan

© 2026 Daniele
60 Windsor Avenue, London SW19 2RR, UK