Just landed: Learn Kubernetes weekly 184! My top picks: 🔒 Securing Crossplane Dashboard 🔑 Leaked Secrets in Version Control 🍓 Production Kubernetes on Raspberry Pi 🩺 Node Healthcheck Operator Read it here: https://kube.today/issues/184

Most Kubernetes metrics tutorials stop just as the interesting part begins. They show Prometheus or Metrics Server, then skip kubelet, cAdvisor, CRI, containerd, and Linux cgroups. That's the part you need if you want to trust your dashboards.

Just landed: Learn Kubernetes weekly 183! My top picks: 🎙️ Vibe Coding a K8s Media Server 🐘 CloudnativePG: Postgres on Kubernetes ⚡ CRaC: 88% Faster Spring Boot 👾 Kubeinvaders: Cluster Resilience Testing Read it here: https://kube.today/issues/183

Most Kubernetes production failures are contract failures between the app and Kubernetes. Gulcan and I made an interactive readiness checklist and PDF worksheet for the app behavior that Kubernetes will test before go-live. https://learnkube.com/production-best-practices

Just landed: Learn Kubernetes weekly 182! My top picks: 🤖 LLMs on Kubernetes the Easy Way 🌐 Kubernetes Gateway API on EKS via ALB 🔧 Elastic Kubernetes Platform on VMware vSphere 🔐 PII-Shield: Log Sanitizer Read it here: https://kube.today/issues/182

Just landed: Learn Kubernetes weekly 181! My top picks: 🐳 Docker Compose to Kubernetes on AWS 🔄 Automated GitOps: ECR to EKS 🍓 Kubernetes Cluster with Raspberry Pis 🔐 Audicia — RBAC from Audit Logs Read it here: https://kube.today/issues/181

Just landed: Learn Kubernetes weekly 180! My top picks: 🔐 Hardware-backed TLS with YubiHSM 2 📈 KEDA on GKE: Event-Driven Autoscaling 🔀 Migrate from NGINX to Traefik in Minutes 🧠 RootCause MCP Server Read it here: https://kube.today/issues/180

How teams manage node OSes in Kubernetes: - 47.1% replace nodes instead of patching - 55.1% check monitoring/logs first - 74.3% can patch within hours or days after a critical OS CVE Full report: https://kube.today/immutable-linux-kubernetes-2026

🚀 I created a map of the Kubernetes control plane. If you’ve ever wondered what happens after `kubectl apply`, this should help: https://learnkube.com/kubernetes-control-plane The map is sized for A4 paper, so you can print it out and put it on your wall if you like!

Become an expert in Kubernetes! LearnKube runs its iconic 4-day Advanced Kubernetes course next week! If you want to get your hands dirty with Kubernetes, join us for a workshop packed with hands-on labs! Sign up here: https://learnkube.com/training

Just landed: Learn Kubernetes weekly 179! My top picks: 🤔 cgroup v1 CPU Shares to v2 CPU Weight 💰 Kubernetes for Pentesters ⚙️ Observability in EKS 👨‍🔧 Prometheus SLO Generator Sloth Read it here: https://kube.today/issues/179

Delete a Pod from a Deployment and a new one appears. The API server didn't create it. The scheduler didn't schedule it yet. A controller inside the controller manager noticed the count was wrong and created a replacement before anything else happened.

Just landed: Learn Kubernetes weekly 178! My top picks: 🤖 Deploy LLM Models on OpenShift 🔧 Modernizing Jenkins: From Agents to Pods 🏗️ Building a Local Data Platform 🛡️ Netfence: eBPF Network Filter Daemon Read it here: https://kube.today/issues/178

Just landed: Learn Kubernetes weekly 177! My top picks: 🔧 Structured Matching, Patching and Diffing 📋 Kueue: Atomic Admission and Topology Awareness 🔑 Uniform API Server Access with clientcmd 🤖 KubeAttention Read it here: https://kube.today/issues/177

Just landed: Learn Kubernetes weekly 176! My top picks: 🔒 GlusterFS Unprivileged Containers 🚀 Startup CPU Boost with In-Place Pod Resize 🌐 Gateway API on AKS via Azure Application Gateway ✅ Helm CEL Validator Read it here: https://kube.today/issues/176

Just landed: Learn Kubernetes weekly 175! My top picks: 🤖 EKS Hybrid Nodes with KubeVirt 🏢 GKE Multi-Tenancy with RBAC 🔌 Extending Argo Workflows Controller 🔍 kimspect: Container Image Inspector Read it here: https://kube.today/issues/175

Just landed: Learn Kubernetes weekly 174! My top picks: 🎮 Making and Scaling a Game Server with Agones 🗄️ Zero-Downtime PostgreSQL Migration 🚀 From Chaos to 99.9% Uptime 📊 k8s-d2: Kubernetes visualization Read it here: https://kube.today/issues/174

AI coding tools are getting faster. Some people run them directly on production, skipping reviews and checks entirely. Others build chains of requirements docs & architecture decisions. One camp says code is the artifact. The other says specifications.

I built a few CLI tools for myself: one searches Gmail, another reads GDocs. My AI agent needed to download an email attachment. My CLI didn't have that command. So it found the credentials on disk, called the API directly, and leaked my refresh token.

Just landed: Learn Kubernetes weekly 173! My top picks: 🧪 Integration Testing with Kubernetes 🔐 Vault OIDC Authentication 🛡️ Admission & Runtime Guardrails ✅ Kogaro Config Hygiene Agent Read it here: https://kube.today/issues/173

You want to share GPUs: one team runs inference, another trains models, and both need the same expensive cards. The problem is that GPUs don't behave like CPU and RAM under contention. (I will cover this on Thursday: ku.bz/multitenant26 ) 🧵

Gulcan and I wrote a free book on right-sizing GPUs in Kubernetes. Here's the short version (thread)

Just landed: Learn Kubernetes weekly 172! My top picks: 🎒 Data Streaming: Kafka + Flink Baggage Tracker 🥧 Raspberry Pi Home Kubernetes Cluster 🤖 AI Document Processing with Ray 💰 Wozz: Kubernetes Cost Tool Read it here: https://kube.today/issues/172

etcd is the database behind every Kubernetes cluster. You can run one for years without thinking about it. Then your cluster gets big enough, and etcd is all you think about. A thread on why. 🧵

The K8s multi-tenancy landscape has changed a lot in a year. New tools, dead projects, and the linear spectrum no longer hold. Tomorrow I'm walking through what shifted and why Come grill me live https://ku.bz/multitenant26

Just landed: Learn Kubernetes weekly 171! My top picks: 🌐 Local DNS for Demos 🔑 Kubeconfig Files for Service Accounts 🎮 GPU-accelerated Chromium on Kubernetes 📸 Crust-Gather: kubectl Cluster Snapshot Plugin Read it here: https://kube.today/issues/171

😱 Kubelet pulls images serially by default — one large image silently blocks every pod behind it Jan shares how he shaved 20 seconds off node startup and 30 seconds off P90 pod startup across ~1,000 EKS nodes https://ku.bz/B7TzKXyxf

Multi-tenancy in Kubernetes has always been about sharing a cluster with other teams. Multiple groups, one cluster. Everyone needs their own space. But the way we think about it just changed. Here's why 🧵

Just landed: Learn Kubernetes weekly 170! My top picks: 💾 Persistent Storage in AKS 🌐 Kubernetes Gateway API Setup 🔗 Unifying Inner & Outer Loops 🔍 Korrel8r Observability Correlation Engine Read it here: https://kube.today/issues/170

Last year, I mapped the K8s multitenancy spectrum. This year, I'm adding AI agent sandboxing — where does it fit when the tenant isn't a human but a machine acting autonomously? In collaboration with @vcluster.com Feb 24 — 10:00 AM ET https://ku.bz/Kzd7BPBqq

The Kubernetes scheduler doesn't randomly assign pods to nodes It runs a two-phase pipeline: filter, then score Here's how it works, in 7 diagrams

Just landed: Learn Kubernetes weekly 169! My top picks: 🔧 Vanilla K8s on NixOS 📊 Signals to Reliability: SLOs, Runbooks and Post-Mortems 🚪 Introducing MCP-Gateway in Kagenti 🤖 Kubently: Agentic K8s Debugging Read it here: https://kube.today/issues/169

Just landed: Learn Kubernetes weekly 168! My top picks: 🔍 Job Failures to Serial Console Bottlenecks 📊 OpenTelemetry-Native LGTM Stack 📦 Container Image Reduction: 1.2GB to 100MB 🔎 Lynq: SQL-like Kubernetes Read it here: https://kube.today/issues/168

💰 A full Kubernetes cluster for $2/month. Three nodes, multi-region, real workloads 💡 The clever part: skip the $10/month load balancer entirely. Tailscale operator + tailnet = fully private cluster by default https://ku.bz/HpVyQMVv0

Just landed: Learn Kubernetes weekly 167! My top picks: 🏗️ 80M User Infrastructure with a 5-Person Team 🤖 Self-Hosted RAG on Kubernetes ☁️ Managed Kubernetes on Proxmox with CAPI 📊 Prom Analytics Proxy Read it here: https://kube.today/issues/167

Just landed: Learn Kubernetes weekly 166! My top picks: 🐛 Fixing Kubelet Sandbox Errors 📊 Distributed Tracing with Tempo on AKS 💰 SimKube for Cost Forecasting 🚀 Kargo: GitOps Automation Read it here: https://kube.today/issues/166

83% of Kubernetes teams use network policies. 60% struggle to understand what they're actually doing I surveyed 530 practitioners and here is what I found: https://kube.today/kubernetes-network-policies-2025

Just landed: Learn Kubernetes weekly 165! My top picks: 🌐 Stretching a Layer 2 network over KubeVirt 💰 Reducing Feature Environment Costs with KEDA ☁️ Build your own SaaS with Kamaji 🔄 VolSync PV Replication Read it here: https://kube.today/issues/165

Just landed: Learn Kubernetes weekly 164! My top picks: 🛡️ Enforcing policies with GateKeeper 📦 Partitioned Log Storage on S3 🎮 Dynamic MIG Partitioning 🔐 Crowdsec: security solution Read it here: https://kube.today/issues/164

Just landed: Learn Kubernetes weekly 163! My top picks: 💾 Home Data Lake on a Budget 🧠 Smart Load Balancing at Databricks 🔗 Postgres Pooling with pgBouncer 🚪 Goma Gateway: Declarative API Gateway Read it here: https://kube.today/issues/163

Just landed: Learn Kubernetes weekly 162! My top picks: 🔐 Securing K8s with Kong + Keycloak 🌐 Networking for EKS Hybrid Nodes 📊 Victoria Logs vs Loki: Benchmarking Results 🛡️ Kexa: Cloud Compliance at Scale Read it here: https://kube.today/issues/162

Just landed: Learn Kubernetes weekly 161! My top picks: 🧩 JVM Crash-Loop Debugging 🏪 Edge Kubernetes Evolution ☁️ Kubernetes for Cloud Infrastructure 🏷️ Kube-vip Load Balancer Read it here: https://kube.today/issues/161

🚀 It's that time of the year! What did I achieve in 2025? A thread 🧵

Just landed: Learn Kubernetes weekly 160! My top picks: 🔧 Jenkins Meets Kubernetes 🌉 GitOps for Network Engineers 🔗 AWS EKS Hybrid Networking ⚡ Stargz Snapshotter: lazy image distribution Read it here: https://kube.today/issues/160

Your container does not have GPU drivers installed So, how does PyTorch inside it actually use the host's GPU? Let me explain 🧵

Just landed: Learn Kubernetes weekly 159! My top picks: ⚔️ SSA Path to Kubernetes Diplomacy 🔁 GitOps from Container Push 🔐 Securing Kubernetes Layer by Layer 🧩 Yoke WASM IaC Deployer Read it here: https://kube.today/issues/159

In the latest KubeFM episode, Tanat shared how his team at Adevinta replaced EKS Managed Node Groups and Cluster Autoscaler with AWS Karpenter — and transformed their entire Kubernetes operation in the process https://ku.bz/T6hDSWYhb

1,317 Kubernetes practitioners shared how they manage resources: → 56% still do it manually despite wanting automation → 45% regularly hit CPU throttling/OOM kills → 57% estimate 20%+ waste in compute costs Report: https://kube.today/kubernetes-resource-management-2025

🗣️ Festus rebuilt Kubernetes from scratch in Go After teaching Kubernetes to thousands of engineers, this validates what I've seen: people don't struggle with complexity; they struggle with abstractions before fundamentals https://ku.bz/pf5kK9lQF

Just landed: Learn Kubernetes weekly 157! My top picks: ☁️ .NET Weather Forecast App on AKS 🧩 eBPF with Cilium VTEP (VXLAN tunnel) 📈 Autoscaling .NET APIs with KEDA 🌙 KubeElasti Scale to Zero Read it here: https://kube.today/issues/157