Optimization on Besterry — Linux & DevOps Noteshttps://besterry.com/tags/optimization/Recent content in Optimization on Besterry — Linux & DevOps NotesHugoen-usMon, 20 May 2024 00:00:00 +0000Reducing Container Image Size: Multi-Stage Builds and Alpinehttps://besterry.com/posts/container-image-size/Mon, 20 May 2024 00:00:00 +0000https://besterry.com/posts/container-image-size/<p>Small images boot faster, save bandwidth, and have smaller attack surface. Here are the techniques that actually work.</p> <h2 id="multi-stage-builds">Multi-stage builds</h2> <p>The single biggest win. Build in one stage, copy only the artifacts to a minimal runtime stage. A Go binary of 15 MB ends up in a 17 MB image. Compare to a naive golang:1.22 image at 900+ MB.</p> <h2 id="base-image-choice">Base image choice</h2> <p>From smallest to largest for Go/Rust static binaries:</p>