Docker Image Bloat: A Developer's Guide to 88% Size Reduction

Most developers unknowingly bloat Docker images by using full base images and inefficient build patterns, leading to slower deployments and higher cloud costs. This guide reveals practical optimization techniques—multi-stage builds, slim base images, and proper layer caching—that can reduce image size by 88% without sacrificing functionality. These improvements directly impact deployment speed, infrastructure costs, and security posture, making Docker optimization a critical skill for production environments.