docker-multi-stage-build
Multi-Stage Docker Builds for Creating Tiny Go Images
Single-stage build
See the Dockerfile.alpine
FROM golang:alpine
WORKDIR /app
ADD . /app
RUN cd /app && go build -o app
ENTRYPOINT ./appbuild and run as the following command.
$ docker build -f Dockerfile.alpine -t appleboy/go-app .
$ docker run --rm appleboy/go-app258 MB, just for our single little Go binary.
Multi-Stage build
See the Dockerfile.alpine
# build stage
FROM golang:alpine AS build-env
ADD . /src
RUN cd /src && go build -o app
# final stage
FROM alpine
WORKDIR /app
COPY --from=build-env /src/app /app/
ENTRYPOINT ./appbuild and run as the following command.
$ docker build -t appleboy/go-app .
$ docker run --rm appleboy/go-app6.35 MB. Much better.