Dockerfile

ARG VERSION
FROM debian:${VERSION} as prebuilder

RUN cp -r /var /c

FROM debian:${VERSION} as prebuilder2

RUN cp -r /usr /d

FROM debian:${VERSION} as prebuilder3

RUN cp -r /usr /e

FROM debian:${VERSION} as prebuilder4

RUN cp -r /usr /f

FROM debian:${VERSION} as builder

COPY --from=prebuilder /c /c
COPY --from=prebuilder2 /d /d

RUN env
RUN env
RUN env
RUN env
RUN env
RUN env
RUN env
RUN env
RUN env
RUN env
COPY Dockerfile .
RUN env

RUN cp -r /etc /a
RUN cp -r /etc /b

RUN env

FROM debian:${VERSION}

COPY --from=prebuilder3 /e /e
COPY --from=prebuilder4 /f /f

COPY --from=builder /a /a
COPY --from=builder /b /b

RUN env

init.sh

sudo apt-get remove -y docker docker-engine docker.io containerd runc
sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo apt-key fingerprint 0EBFCD88
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install -y docker-registry
sudo usermod -G docker ubuntu

run.sh

target=$1

rsync -avh $(pwd)/ ubuntu@$target:test/
ssh ubuntu@$target test/test.sh

test.sh

#!/bin/bash -xe
export DOCKER_BUILDKIT=1


cd $(dirname $0)

sudo apt-get remove -y --purge docker-ce docker-ce-cli containerd.io || true
sudo rm  -rf /var/lib/docker
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=2 --build-arg BUILDKIT_INLINE_CACHE=1 --target=prebuilder -t localhost:5000/cache:prebuilder .
docker push localhost:5000/cache:prebuilder
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=2 --build-arg BUILDKIT_INLINE_CACHE=1 --target=prebuilder2 -t localhost:5000/cache:prebuilder2 .
docker push localhost:5000/cache:prebuilder2
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=2 --build-arg BUILDKIT_INLINE_CACHE=1 --target=prebuilder3 -t localhost:5000/cache:prebuilder3 .
docker push localhost:5000/cache:prebuilder3
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=2 --build-arg BUILDKIT_INLINE_CACHE=1 --target=prebuilder4 -t localhost:5000/cache:prebuilder4 .
docker push localhost:5000/cache:prebuilder4
docker build --build-arg VERSION=stretch-slim  --build-arg bar=1 --build-arg foo=2 --build-arg BUILDKIT_INLINE_CACHE=1 --target=builder -t localhost:5000/cache:builder .
docker push localhost:5000/cache:builder
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=2 --build-arg BUILDKIT_INLINE_CACHE=1 -t localhost:5000/cache:main .
docker push localhost:5000/cache:main

sudo apt-get remove -y --purge docker-ce docker-ce-cli containerd.io || true
sudo rm  -rf /var/lib/docker
sudo apt-get install -y docker-ce docker-ce-cli containerd.io

docker pull localhost:5000/cache:prebuilder
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=3 --build-arg BUILDKIT_INLINE_CACHE=1 . --target=prebuilder --cache-from=localhost:5000/cache:prebuilder
docker pull localhost:5000/cache:prebuilder2
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=3 --build-arg BUILDKIT_INLINE_CACHE=1 . --target=prebuilder2 --cache-from=localhost:5000/cache:prebuilder2
docker pull localhost:5000/cache:prebuilder3
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=3 --build-arg BUILDKIT_INLINE_CACHE=1 . --target=prebuilder3 --cache-from=localhost:5000/cache:prebuilder3
docker pull localhost:5000/cache:prebuilder4
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=3 --build-arg BUILDKIT_INLINE_CACHE=1 . --target=prebuilder3 --cache-from=localhost:5000/cache:prebuilder4
docker pull localhost:5000/cache:builder
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=3 --build-arg BUILDKIT_INLINE_CACHE=1 . --target=builder --cache-from=localhost:5000/cache:prebuilder,localhost:5000/cache:prebuilder2,localhost:5000/cache:builder
docker pull localhost:5000/cache:main
docker build --build-arg VERSION=stretch-slim --build-arg bar=1 --build-arg foo=3 --build-arg BUILDKIT_INLINE_CACHE=1 . --cache-from=localhost:5000/cache:prebuilder,localhost:5000/cache:prebuilder2,localhost:5000/cache:prebuilder3,localhost:5000/cache:prebuilder4,localhost:5000/cache:builder,localhost:5000/cache:main