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5/5 Join us on November 9 at the Hilton Salt Lake City Center. The event is free, but space is limited and registration is required. See the agenda and register: learnkube.com/learnkube-day-salt-la…

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4/5 But the part I am most excited about is the chance to meet the people who supported us over the years. If you read our articles, took a course, listened to the podcast, or shared our work, thank you. I hope we can meet in person!

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3/5 The day includes: • A hands-on observability and AI SRE workshop • Technical talks on Bank Grade Kubernetes, developer velocity, cost optimization, and AI operations • YAML Games, drinks, and time to talk

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2/5 To celebrate, Artem Lajko, Diana Todea, Viktor Farcic, Graziano Casto, Brandt Keller, Carol Valencia, and Jay Jackson will join us for lightning talks. Quite a group for our first event!

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Daniele Polencic @danielepolencic.com · 30/09/2026

1/5 This KubeCon NA, we will host our first community event: LearnKube Day in Salt Lake City, on November 9. This one is special to me. For the first time, we will bring our community together for a day of our own. 🧵

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Just landed: Learn Kubernetes weekly 203! My top picks: 🔍 Dropping Logs in Your Cluster 💤 Scale to Zero with KEDA 🕵️ Hidden Docker Secrets 🐍 Kubex Async Python Client Read it here: kube.today/issues/203

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5/6 This is where I get stuck on evals Do platform teams need to maintain incident scenarios alongside their infrastructure to assess their agents? What evidence makes you trust a proposed fix when some mistakes only appear under load or during failover?

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4/6 Suppose the agent increases retries to fix intermittent failures The configuration is valid. A small test passes. At peak traffic, those retries amplify the overload There is no immediate feedback that the fix was wrong

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3/6 OpenAPI specifications, the Flux Schema MCP, versioned documentation, and live telemetry all help If an agent invents a CRD field, validation catches it. The agent reads the error and tries again But what if the answer looks correct?

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2/6 Two articles made me think about models that rely more on reasoning and tools, and less on memorized facts For platform ops, I like that direction. I want a generalist that retrieves accurate information about my system

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Daniele Polencic @danielepolencic.com · 23/09/2026

Agents are becoming part of everyday Kubernetes operations. How do we know when to trust them? Some mistakes produce an immediate error. Others look like successful fixes until production conditions change 🧵

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Just landed: Learn Kubernetes weekly 202! My top picks: 🔀 Strimzi HA Kafka Playbook 🤖 Distributed LLM Inference 0 to 1 🚪 High-Performance AI Gateway 🛡️ Kubesafe: Cluster Safety Read it here: kube.today/issues/202

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Across all seven examples, the hard part was deciding where boundaries, ownership, and automation belonged You can download Kubernetes Architecture in Financial Services for free: learnkube.com/kubernetes-architectu…

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Saxo and Itau approached a related problem with operators Saxo reconciled external service dependencies, while Itau used a Kubernetes-style control plane to relocate services across runtimes The overlap is partial, but the contrast is striking

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I particularly liked Lunar's multicluster service mesh It gave the team quite a bit of flexibility in how it exposed and architected services across a diverse estate

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Some decisions showed broad agreement. Others led to very different solutions The book covers tenant isolation, delivery, policy, multicluster networking, reliability, service dependencies, and cluster replacement

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I wanted to understand how banks handle that complexity, so I partnered with @BuoyantIO, @sysdig, and @NirmataCloud and took a deep dive After a lot of research and the usual week spent illustrating my work, the result is a seven-chapter book

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Financial firms have a tougher time with Kubernetes They face the usual problems around scaling, networking, and onboarding, plus regulatory compliance, auditing, and a massive workforce spread across on-premises infrastructure and multiple clouds

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Daniele Polencic @danielepolencic.com · 16/09/2026

Kubernetes hard mode: how do banks run their platforms? My new book, Kubernetes Architecture in Financial Services, is out now: learnkube.com/kubernetes-architectu… Here is what surprised me while researching it:

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My picks from Learn Kubernetes Weekly 201: 🌐 Linkerd multicluster failover 💸 EKS Spot capacity with Karpenter 🔌 Auto-reconnecting port forwards Read it: kube.today/issues/201

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A big single-node Kubernetes cluster and walls of YAML. That is what I like about Kubernetes. What about you?

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Obviously, if downtime is not an option, this setup does not work for you. But 99.9% availability leaves about 8 hours and 45 minutes of downtime per year. For me, that is plenty for critical updates.

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I know that I have replaced one controversial take with another: is a single node the antithesis of Kubernetes? Maybe. I prefer fewer moving parts because they make the system easier to reason about.

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But if you stick to the core resources and use YAML to describe your infrastructure, Kubernetes is surprisingly manageable. You can do a lot without getting into more complicated scenarios.

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What I value about Kubernetes is that anyone can look at my YAML files and understand what I am doing. Yes, the YAML is verbose. Yes, Kubernetes is complex.

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In fact, I prefer very large single-node clusters whenever I can. For example, K3s on machines with more than 128 GB of RAM and 32 cores.

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I think the value of Kubernetes does not start with scale. It starts with standardization and abstraction. Ironically, at least for me, scale is a side effect.

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Daniele Polencic @danielepolencic.com · 09/09/2026

When does Kubernetes make sense? It is one of the questions we ask during private Kubernetes courses at @learnkube.com. My controversial answer is one application.

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It's Kubernetes newsletter day (and it's also issue 200!!!!) My top picks from this week: 🧪 Local multi-cluster platforms 🔎 Helm security scanning at scale 🛡️ eBPF runtime enforcement Read it: kube.today/issues/200

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Daniele Polencic @danielepolencic.com · 03/09/2026

“The technical depth of demos and deep-dive explanations - so much better than any of the many online on-demand classes I've taken.” This is why we continue to teach Kubernetes live learnkube.com/online-advanced-septe…

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Daniele Polencic @danielepolencic.com · 02/09/2026

Just landed: Learn Kubernetes weekly 199! My top picks: 🤖 AI Agent for VictoriaMetrics 🍓 Raspberry Pi Homelab with K3s 🏗️ Multi-Cluster Management with Rancher 🔓 Cordium Secretless Sandboxes Read it here: kube.today/issues/199

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Daniele Polencic @danielepolencic.com · 26/08/2026

Just landed: Learn Kubernetes weekly 198! My top picks: 🧪 k6 Test Suite on Kubernetes 🔌 WSO2 API Gateway on OpenShift ⚡ Autoscalable GitLab Runners on EC2 🔐 Kubernetes IPsec Connection Operator Read it here: kube.today/issues/198

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Daniele Polencic @danielepolencic.com · 24/08/2026

ECS, EKS, or… EC2? If you had an expert whisperer next to you, would it really matter which orchestrator you chose? And are internal developer platforms becoming another harness?

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LearnKube @learnkube.com · 21/08/2026

Reposted by Daniele Polencic

See how networking, scheduling, deployments, storage, autoscaling, and security fit together Join our live Advanced Kubernetes course on 10, 11, 17 and 18 September: learnkube.com/online-advanced-septe…

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Daniele Polencic @danielepolencic.com · 19/08/2026

Just landed: Learn Kubernetes weekly 197! My top picks: 🧪 Ephemeral Environments for QA 🎛️ Tuning Argo CD Defaults 📊 KEDA: Scale Smarter, Not Harder 🤖 Agent Substrate Runtime Read it here: kube.today/issues/197

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Daniele Polencic @danielepolencic.com · 12/08/2026

Just landed: Learn Kubernetes weekly 196! My top picks: 📦 Kargo Between CI and ArgoCD 📈 GPU Autoscaling with vLLM 🧠 AI-Aware Kubernetes Routing 🛡️ ESP Kubernetes Reference Implementation Read it here: kube.today/issues/196

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Daniele Polencic @danielepolencic.com · 05/08/2026

Just landed: Learn Kubernetes weekly 195! My top picks: 🔒 Nodes/proxy Get: One Permission Too Many 🔑 Kubernetes AuthN the Hard Way 🐛 ArgoCD ServerSideDiff Vulnerability 🛠️ Okteto Dev Platform Read it here: kube.today/issues/195

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Daniele Polencic @danielepolencic.com · 03/08/2026

We’ve just confirmed 3 private Kubernetes training engagements for September alone Want to level up your team’s Kubernetes and platform engineering skills? Teams: learnkube.com/corporate-training Individuals: learnkube.com/training

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Daniele Polencic @danielepolencic.com · 29/07/2026

Just landed: Learn Kubernetes weekly 194! My top picks: 🎮 Game Servers with Agones 🤝 Multi-Agent A2A on EKS ✍️ Docker Image Signing and Verification 🖥️ AI Cluster Runtime for K8s: NVIDIA AICR Read it here: kube.today/issues/194

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Daniele Polencic @danielepolencic.com · 28/07/2026

One million output tokens per second. On Kubernetes KubeFM Season 9 starts with a bang! Federico Iezzi explains how he reached that milestone with Qwen 3.5, vLLM, GKE Autopilot and B200 GPUs 🎙Bart is back. KubeFM is back ku.bz/1xD9Md0mb

Daniele Polencic @danielepolencic.com · 22/07/2026

Just landed: Learn Kubernetes weekly 193! My top picks: 🚧 Kubernetes Gotchas Breaking Laravel Deploys 🕵️ Catching Helm Drift 🧩 Fixing 502 Bad Gateway in GKE and Istio 🛡️ Copy Fail Destroyer Read it here: kube.today/issues/193

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Daniele Polencic @danielepolencic.com · 15/07/2026

Just landed: Learn Kubernetes weekly 192! My top picks: 🔑 EKS Pod Identity Session Policies 🛡️ Blocking Copy Fail with Tetragon 🌐 PodCIDR Pools with Cilium and vCluster 🗺️ k8scout Attack Path Mapper Read it here: kube.today/issues/192

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Daniele Polencic @danielepolencic.com · 08/07/2026

Just landed: Learn Kubernetes weekly 191! My top picks: 🛡️ Secure AI Kubernetes Debugging ☁️ On-Prem Meets Cloud, Finally 📊 Local EKS Log Monitoring 🚫 Copy Fail Blocker Read it here: kube.today/issues/191

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Daniele Polencic @danielepolencic.com · 01/07/2026

Just landed: Learn Kubernetes weekly 190! My top picks: 🔒 L7 Filtering with Cilium eBPF 🐛 Debugging Across Container Boundaries 🛡️ Automating Pod Disruption Budgets ⛵ Luxury Yacht: K8s Management App Read it here: kube.today/issues/190

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Daniele Polencic @danielepolencic.com · 24/06/2026

Just landed: Learn Kubernetes weekly 189! My top picks: 🚀 GitOps at Enterprise Scale 🖥️ Generative AI at the Edge with EKS Hybrid Nodes 🪖 Deploying OpenClaw with Helm 🐘 OpenEverest Database Platform Read it here: kube.today/issues/189

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Daniele Polencic @danielepolencic.com · 17/06/2026

Just landed: Learn Kubernetes weekly 188! My top picks: 🚀 Stateless ArgoCD for Bare-Metal 🔏 Signed, Sealed, and Admitted 🔐 Securing Inference with Authorino 🔍 xpdig: Explore Crossplane Traces Read it here: kube.today/issues/188

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Daniele Polencic @danielepolencic.com · 10/06/2026

Just landed: Learn Kubernetes weekly 187! My top picks: 🔐 OAuth with Kindling 🔀 Sharded Multi-Cluster cert-manager 🏗️ Private EKS Cluster with OpenVPN and Grafana 🗃️ Chainloop SDLC Evidence Store Read it here: kube.today/issues/187

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Daniele Polencic @danielepolencic.com · 03/06/2026

Just landed: Learn Kubernetes weekly 186! My top picks: 🔧 Fixing ISR Revalidation Across Replicas 🌐 GKE Multi-cluster Gateway 🚀 Migrating VPC CNI to EKS Managed Add-on 🗼 hanoi-cli Read it here: kube.today/issues/186

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