K8s in a Submarine: Optimizing Delivery for Some of the Hardest-to-reach Systems on Earth
summary
zarf is an Apache2 open source Go binary that makes full air‑gap Kubernetes deployments declarative and push‑button, using k3s for small footprints and a built‑in workflow to package images, SBOMs (via sift), and even multi‑GB datasets (6–7 GB tested). It boots a temporary registry by splitting a tarball into ~512 KB configmaps (about 20+ pieces) and reassembling with a 500 KB Rust injector, plus a mutating webhook that rewrites images so Flux/Helm charts work without internet. zarf open-source Apache2 Go binary
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