About the Book
Build smaller, safer containers and ship Kubernetes deployments with confidence using Alpine Linux.
Many teams want fast, secure containers, yet run into brittle builds, unclear supply chains, and clusters that accept too much risk. When base images drift and Dockerfiles balloon, delivery slows and incidents rise.
This book gives you a practical, end to end path. You will design deterministic Dockerfiles, control your supply chain with SBOMs and signatures, and enforce restricted defaults in Kubernetes. Each chapter translates real production lessons into steps you can apply on day one.
Understand Alpine fundamentals, musl, BusyBox, apk, pins, mirrors, and the world file
Create deterministic Dockerfiles with digest pinning, virtual build dependencies, and single layer cleanup
Use BuildKit and buildx for cache mounts, secret mounts, provenance, and multi platform builds with QEMU
Apply language specific patterns that ship, including Go static and CGO builds, Python musllinux wheels and wheelhouses, Node native modules with toolchain isolation, plus lean Java and Rust stages
Harden image layers with non root users, capability drops, seccomp defaults, read only root filesystems, tmpfs mounts, and reliable entrypoints
Generate SBOMs in SPDX and CycloneDX, sign images and attestations with Cosign, and enforce them with admission policy
Run Kubernetes restricted by default with Pod Security Admission, safe securityContexts, stable probes, and resource policies that prevent flapping
Design networking and storage for least exposure using NetworkPolicies, minimal service ports, Secrets Store CSI, rotation, and encrypted stateful data
Build observability for minimal images, including structured logging, metrics endpoints, BusyBox based debug, DNS and TLS diagnostics, and postmortem capture
Improve performance and size with static versus dynamic linking decisions, layer hygiene, asset compression, and image verification
Operate at scale with CI and CD, GitHub Actions pipelines to build, sign, and attest, policy checks in pipelines and at cluster gates, and progressive delivery with canaries and rollbacks
Follow capstone projects that carry Go, Python, and Node services from code to a restricted cluster with multi arch images, SBOMs, and signatures
Adopt a production checklist, incident drills, and an upgrade playbook for base images, registries, and clusters
This is a code heavy guide with working Dockerfiles, Kubernetes manifests, and CI workflows that you can adapt to real projects without guesswork.
Get the practical playbook for secure, reproducible container delivery, and grab your copy today.
