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Scaling AI in production is not just about making models more powerful — it's about building the infrastructure to serve them reliably at scale. The…
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Kapitan generators as supply-chain artifacts
Kapitan's kadet generators are Python packages that turn an inventory into Kubernetes manifests, Terraform JSON or anything else. They are also code…
Self-Hosted Databricks Alternative: Homelab Data Lakehouse (AI/ML Data Factory)
Self-Hosted Databricks Alternative: Homelab Data Lakehouse Part of the homelab build series. Trino, Apache Iceberg, Project Nessie, dbt, Spark, MLfl…
Our autoscaler stopped scaling the day we added a sidecar without a CPU request
On the first Monday of January, when our trade customers restock after the holidays, the catalogue API slowed to four seconds a page by half past ei…
Horizontal Scaling Series — Part 1: MinIO and Shared Object Storage
When we horizontally scale an application, adding more instances is only part of the solution. We also need to consider where the application stores…
Deploying MCP Servers on Kubernetes
Most MCP servers start life as a local, stdio-based process — the client spawns the server as a child process, messages flow over stdin and stdout.…
Kubernetes CI: Lease Test Mailboxes, Don't Retry Blindly
Email verification tests become unreliable when the mailbox is treated like an ordinary HTTP dependency. A pipeline sends a message, waits a few sec…
Shared Responsibility in Argo CD: Who Owns Each Part of CVE-2026-77459 and Its Siblings
Shared Responsibility in Argo CD: Who Owns Each Part of CVE-2026-77459 and Its Siblings Vulnerability overview Four CVSS 9.9 vulnerabilities were fi…
Daily Dose of DevOps — Kubernetes observability: for regulated workloads
Kubernetes observability: for regulated workloads Scale converts an informal convention into an outage mechanism. For kubernetes observability for r…
We Treat Applications as Products. Why Is the Platform Still a Black Box? Introducing Platform BOM (PBOM)
An application team can point to the feature it shipped this week. A platform team may have spent that same week making deployments safer, improving…
Zero-Trust Security for Sovereign AI on GPU Clusters
Generative AI has moved from experiment to everyday tooling, bringing strict data privacy concerns with it. Where does the training data live? Who c…
CAPA Exam Guide: Argo CD Is Only a Third of It. I Scored 93
I wrote the longer version, with more on each Argo project and my prep timeline, on my blog . Daily Argo CD use covers about a third of the CAPA exa…
Google Built It. I Ran It on AWS.
The agent runtime is more portable than you think — mostly. Last week I got Google's Agent Substrate running on Amazon EKS, with S3 snapshots, RDS s…
Kubernetes readiness gates and rolling deploys without downtime
You ship a new version on a quiet Tuesday afternoon. kubectl rollout status reports success, every pod is Running and Ready, and the dashboards look…
Writing and Testing Crossplane Compositions in KCL
TL;DR. I write every Crossplane Composition in KCL via function-kcl . Shared logic lives in one helper module mounted from a ConfigMap. Editing happ…
Crossplane Black Boxes for Developer Self-Service
TL;DR. Developers create cloud resources and IAM grants themselves by committing a small namespaced YAML next to their app. Each kind is a Crossplan…
Day 62: Secrets and Tags
Day 62 of DevOps, Day 12 of Azure. Both tasks today turned on a name I did not choose. Kubernetes named the file inside my Secret after the file on…
We moved a real homelab onto Spinifex and deleted six operators
Building a cloud platform that can understand the AWS API is one thing; rigorously testing it is something else. The AWS API is open, well documente…
The GitOps Bridge: Keep Terraform and ArgoCD Out of Each Other's Way
Two tools, two clocks. Terraform provisions the cluster, the node groups, the networking, the IAM. It changes rarely and under heavy approval. ArgoC…
kubectl logs: Every Flag You'll Actually Use
kubectl logs is the first command you reach for when something breaks — and most people know only the bare version. The flags below are the differen…
ImagePullBackOff: How to Fix It Step by Step
ImagePullBackOff means Kubernetes tried to pull your container image, failed, and is now retrying with exponential backoff. The pod will never start…
WEEKEND HOMEWORK — DEVOPS FOUNDATION + KUBERNETES
This homework is not about memorizing definitions . Your task is to prove that you understand where everything lives, what each component does, and…
Kubernetes OOMKilled & CrashLoopBackOff: Deep Memory Profiling & cgroup v2 Architecture
In production Kubernetes clusters running microservices under high concurrency, few operational failures are more frustrating than sudden Exit Code…
FINAL KUBERNETES PRODUCTION CAPSTONE Dev Staging Production | Helm | Argo CD | Security | Storage | 10 Production Incidents
“I built and operated a production-style Kubernetes platform with separate dev, staging, and production environments. I deployed applications with H…
Kubernetes resource-cost estimates and a local GitOps review with kube-saver
A Kubernetes resource request reserves scheduling capacity. A low CPU reading beside a large request can be worth investigating, but it does not est…
From One VM to a Whole Application: Planning VMware to OpenShift Migration Waves
After I shared my VMware to OpenShift Virtualization lab, a consultant asked me a question I keep thinking about: “Is this about moving a VM, or abo…
RKE2/K3s on macOS + Apple Containers
This project covers both RKE2 and K3s on macOS with Apple's container project as the runtime for each of the processes. rke2-silicon runs a single K…
Mount Local Storage to Kubernetes Pods: An Easy Tutorial Using K3s and the Local Path Provisioner
Originally published on mihai.ltd . Persistent storage remains one of the first hurdles engineers hit when deploying stateful applications to Kubern…
Optimizing Kubernetes Cluster Costs: Spot Instances, Autoscaling, and Resource Quotas
Introduction & Industry Context In the competitive landscape of 2026, managing cloud infrastructure is no longer merely a system engineering con…
Optimizing Kubernetes Manifest Management Across Clusters with Rancher CD and Exploring cdk8s, Pulumi, Nix
Introduction: The Challenge of Kubernetes Manifest Management Managing Kubernetes manifests across multiple clusters and environments is an inherent…