Speeding up your local Docker builds

Every day I build containers locally. Many of us do — Docker is a crucial tool in the developer arsenal these days. However, when you build and maintain 1–2 containers — that’s great, but when you maintain an app built from 10 containers? 15? 20? Each local build, even with cache enabled, will take a significant amount of time. Multiply that by a number of daily rebuilds — and you’ll see hours of your precious time leaking…