Nephew has Docker basics down now — images, containers, volumes, networks, Compose. But the real world keeps handing him things the fundamentals didn't cover: a container that dies the instant it starts, a database password sitting in plain sight in an image layer, a build that takes four minute...
Source: [Dev.to](https://dev.to/surajrkhonde/docker-for-the-developer-who-actually-has-to-ship-secrets-multi-stage-builds-live-reload-and-57m7)