Still debugging Dockerfiles only after they hit staging? In 2025, that’s no longer acceptable.
Build Checks — now built into Docker CLI and GitHub Actions — catch issues before the first layer is even built. CI becomes faster, safer, and far less noisy.
✅ What Build Checks Do for You
- Flag bad practices before anything runs (docker build --check .)
- Show exact Dockerfile line, with rule name and docs link
- Allow # check= inline overrides (skip noisy rules per file)
- Run locally, in CI, and even pre-commit — all lightning-fast
🔒 Pro DevSecOps Tips for 2025
- GitHub Actions v6 shows Build Check errors inline in PRs
- Docker Desktop 4.27+ adds a Checks tab — no flag needed
- Experimental: warn if your base image is outdated (e.g. FROM alpine:3.18)
- New rule: RunLatestVersion flags stale images based on age
🧠 Follow for more DevSecOps insights weekly.
https://medium.datadriveninvestor.com/bullet-proof-dockerfiles-with-build-checks-in-2025-418b5ac15464
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