Want faster Spark jobs?
✅ Build slim, version‑locked Docker images
✅ Bundle Delta Lake, Kafka, Python venv — no more cold‑start lag
✅ Use multi‑stage builds with Ivy + slim Python
✅ Cut pod startup time by up to 40%
Includes ready-to-copy Dockerfile & tips!
👉 Read the article:
https://medium.datadriveninvestor.com/docker-spark-on-kubernetes-build-tiny-custom-executors-in-minutes-in-2025-18f180a327fa