This guide shows how to dramatically reduce container image size using Docker multi‑stage builds, choose minimal base images, automatically generate SPDX/CycloneDX SBOMs, sign images with Cosign, and integrate the whole process into CI/CD pipelines for secure, lightweight deployments.
After migrating over 40 Spring Boot microservices to Docker and Kubernetes, the authors encountered slow startups, OOM kills, unexpected latency, and pod restarts, and they detail a step‑by‑step analysis and concrete Dockerfile, JVM, CPU, GC, and Kubernetes configurations that turned the services into fast, stable, and observable production workloads.
This guide explains why oversized Docker images hurt time, cost and performance, then walks through a real‑world case that reduces a 1.2 GB Python ML image to 8 MB using multi‑stage builds, minimal base images, layer consolidation, distroless images, BuildKit and other security‑focused optimizations.
This tutorial explains how to enable Docker BuildKit and apply a series of Dockerfile optimizations—including reordering commands, using multi‑stage builds, minimizing base images, and leveraging cache and secret mounts—to significantly reduce build time and image size while improving maintainability and security.
This article explains how to shrink a Docker image for a React application from 1.16 GB to 22.4 MB by using a lightweight Alpine base, multi‑stage builds, and finally serving the compiled assets with Nginx, providing step‑by‑step Dockerfile examples and size comparisons.
This article explains how Docker's multistage build feature, introduced in version 17.05, enables faster image creation and significantly smaller container sizes by separating build steps into distinct stages within a single Dockerfile, and shows how to target specific stages during the build process.
This article explains how to reduce Docker image size by consolidating RUN commands, using multi‑stage builds, and switching to minimal base images such as distroless or Alpine, providing concrete Node.js examples, size comparisons, and guidance on choosing the right base image for production.
