Practical guides to Git, CI/CD, Ollama, and Azure
Cilium mTLS ztunnel doesn’t need a SPIRE server — and that’s actually the second-biggest news here. The bigger story: Cilium’s older, SPIRE-based “Mutual Authentication” feature is now officially deprecated, with removal targeted for v1.21. If you adopted it, you’re migrating… Read moreCilium mTLS ztunnel: Sidecar-Free Encryption Explained
Grafana Tempo 3.1 shipped on 2026-09-30 with a feature that matters the moment something goes wrong, not when everything’s fine: redaction by query. Before this release, scrubbing a leaked secret out of your traces meant enumerating trace IDs one at… Read moreGrafana Tempo 3.1: Query-Based Trace Redaction Explained
YAML vs JSON for LLMs isn’t just a style preference — it changes how many tokens you pay for on every request. I ran both formats through a real tokenizer on identical data instead of repeating the “20-ish percent” figures… Read moreYAML vs JSON for LLMs: Real Token Counts, Real Gotchas
Terraform state causes more real incidents than almost anything else in the tool — a stuck lock, a corrupted file, a state rm that touched the wrong resource. Most of the anxiety is unnecessary once you know two things most… Read moreTerraform State Explained: Locking, Backups, and Recovery
Terragrunt isn’t a Terraform competitor. It’s a thin wrapper that runs on top of OpenTofu or Terraform, and the confusion about what it actually adds is real enough that “terragrunt vs terraform workspaces” and “terragrunt vs terraform modules” are both… Read moreTerragrunt vs Terraform: What’s Actually Different
OpenTofu 1.13.0 shipped on September 30, 2026. Officially-supported Windows on ARM64, a set of new functions, and upgrades to the state-encryption system it shipped ahead of Terraform. Here’s what actually changed, verified against the official release changelog, plus a close… Read moreOpenTofu 1.13: What’s New (and Terraform Still Lacks)
Switching cloud accounts across AWS, GCP and Azure is three unrelated problems wearing one trenchcoat. AWS calls them named profiles. GCP calls them configurations. Azure barely gives you a name for it at all — you’re switching subscriptions inside one… Read moreSwitching Cloud Accounts: AWS, GCP and Azure Fast
Kubernetes OOMKilled with exit code 137 means the Linux kernel killed your container’s process for using more memory than it was allowed. Sometimes that’s the container’s own memory limit. Sometimes the whole node ran out of memory and your container… Read moreKubernetes OOMKilled (Exit Code 137): Causes and Fixes
A GitHub Actions workflow not triggering almost never means GitHub is broken. It means one of about a dozen rules quietly filtered your event out: the workflow file is on the wrong branch, a filter didn’t match, the commit was… Read moreGitHub Actions Workflow Not Triggering? Every Cause and Fix
Ollama vs vLLM vs llama.cpp comes down to one question: how many people will hit the model at once? For one developer on a laptop, pick Ollama or llama.cpp. For a GPU server with many concurrent users, pick vLLM. Below,… Read moreOllama vs vLLM vs llama.cpp: Which Local LLM Engine?