buildx.sh

docker build --platform=local -o . git://github.com/docker/buildx
mkdir -p ~/.docker/cli-plugins
mv buildx ~/.docker/cli-plugins/docker-buildx
docker buildx create --name mybuilder
docker buildx use mybuilder
docker buildx inspect --bootstrap
# https://github.com/docker/docker-ce/blob/master/components/cli/experimental/README.md
sudo printf "{\n\t\"experimental\": true\n}\n" | sudo tee /etc/docker/daemon.json

SHELL_RC="/dev/null"

if [ "/bin/zsh" == $SHELL ]
then
    SHELL_RC="/.zshrc"
fi
if [ "/bin/bash" == $SHELL ]
then
    SHELL_RC="/.bashrc"
fi

printf "\n\
# multiarch script configurations\n\
export DOCKER_CLI_EXPERIMENTAL=enabled\n\
export DOCKER_BUILDKIT=1\n\
" >> $HOME$SHELL_RC

# ESTES ARQUIVOS ESTÃO EM ANEXO - os baixe antes de rodar o script
cp dockermultiarch.service /etc/systemd/system/
cp dockermultiarch /usr/bin/
chmod 755 /usr/bin/dockermultiarch
systemctl enable dockermultiarch.service
systemctl start dockermultiarch.service

dockermultiarch

docker run --rm --privileged docker/binfmt:66f9012c56a8316f9244ffd7622d7c21c1f6f28d
docker run --rm --privileged multiarch/qemu-user-static --reset -p yes

dockermultiarch.service

[Unit]
Description=DockerMultiArchSupportBuild

[Service]
ExecStart=/usr/bin/dockermultiarch

[Install]
WantedBy=multi-user.target