Reducing Container Image Size: Multi-Stage Builds and Alpine
Small images boot faster, save bandwidth, and have smaller attack surface. Here are the techniques that actually work. Multi-stage builds 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. Base image choice From smallest to largest for Go/Rust static binaries: ...