Multi Stage Builds - Separation

Multi Stage Builds - Separation

Features

Build and runtime environment
Multiple FROM sections
Last section represents final image

FROM openjdk:8-jdk as builder
#...

FROM openjdk:8-jre
COPY --from=builder ...
#...

Support

Added in Docker 17.09
Based on BuildKit

–

Demo: Multi Stage Builds - Separation

DOCKER_BUILDKIT=1 docker build --tag hello-world-java:multi .