Tag: devops

Build container images without writing a single Dockerfile, ko for Go, Jib for Java, Paketo Buildpacks for everything else. Real benchmarks, real tradeoffs.

Cosign keyless signing uses GitHub OIDC + Fulcio + Rekor to sign container images without managing private keys. Here's how it actually works and why you want it.

Orchestrating multi-image Docker builds: docker buildx bake vs compose build, matrix targets, multi-arch, caching, and when each one actually wins.

nerdctl is the containerd-native docker CLI replacement, when it's a drop-in, when it's not, and why you'd bother switching at all.

Trivy, Grype, and Docker Scout go head-to-head on speed, CVE coverage, CI integration, and cost. Pick the right scanner for your home lab or pipeline.

OpenTelemetry plus the Grafana LGTM stack gives you Datadog-class traces, metrics, and logs for $0/month. Deploy an OTel Collector and instrument your app fast.

K3s, K0s, and MicroK8s all slim down Kubernetes for home labs and edge, but they make very different tradeoffs. Here's how to pick the right one without losing a weekend.

Per-container control over Docker image updates with labels. Auto-update or notify via Discord, Slack, ntfy, no sidecar needed.

You've been compromised. Now what? A practical incident response playbook for self-hosters who didn't think they'd need one until right now.

Twenty powerful bash one-liners every sysadmin should know, file ops, process hunting, networking, text processing, disk analysis

Compile software on Raspberry Pi or cheap VPS with 512MB, 2GB RAM. Swap, parallel jobs, ccache, and swappiness tuning make it work.

rsync is not a backup. Restic, Borg, and Kopia do deduplication, encryption, and incremental snapshots properly. Here's which one fits your home lab and why.