buildroot dashboard

build.sh

#!/bin/sh

export DOCKER_BUILDKIT=1
export DOCKER_CLI_EXPERIMENTAL=enabled
docker run --rm --privileged multiarch/qemu-user-static:5.2.0-2 --reset -p yes

# use buildx to build and load an amd64 image
docker buildx build . --pull --platform linux/amd64 \
  --tag balenablocks/dashboard:latest --load

# use buildx to build and load an arm64 image
docker buildx build . --pull --platform linux/arm64 \
  --tag balenablocks/dashboard:latest --load

# use buildx to build and load an arm32v7 image
docker buildx build . --pull --platform linux/arm/v7 \
  --tag balenablocks/dashboard:latest --load

# use buildx to build and load an arm32v6 image
docker buildx build . --pull --platform linux/arm/v6 \
  --tag balenablocks/dashboard:latest --load

deploy.sh

#!/bin/sh

export DOCKER_BUILDKIT=1
export DOCKER_CLI_EXPERIMENTAL=enabled
docker run --rm --privileged multiarch/qemu-user-static:5.2.0-2 --reset -p yes

# use buildx to build and push a multiarch manifest
docker buildx build . --pull \
  --platform linux/amd64,linux/arm64,linux/arm/v7,linux/arm/v6 \
  --tag balenablocks/dashboard:latest --push

Dockerfile

ARG BR_VERSION=2020.11

# hadolint ignore=DL3029
FROM --platform=$BUILDPLATFORM klutchell/buildroot-rootfs-amd64:$BR_VERSION as rootfs-amd64

# hadolint ignore=DL3029
FROM --platform=$BUILDPLATFORM klutchell/buildroot-rootfs-arm64:$BR_VERSION as rootfs-arm64

# hadolint ignore=DL3029
FROM --platform=$BUILDPLATFORM klutchell/buildroot-rootfs-arm32v7:$BR_VERSION as rootfs-armv7

# hadolint ignore=DL3029
FROM --platform=$BUILDPLATFORM klutchell/buildroot-rootfs-arm32v6:$BR_VERSION as rootfs-armv6

# hadolint ignore=DL3006
FROM rootfs-$TARGETARCH$TARGETVARIANT as build

# copy common config
COPY package.cfg ./package.cfg

RUN support/kconfig/merge_config.sh -m .config package.cfg

RUN make olddefconfig && make source

RUN make

# hadolint ignore=DL3002
USER root

WORKDIR /rootfs

# extract the rootfs so we can just COPY in future layers
RUN tar xpf /home/br-user/output/images/rootfs.tar -C /rootfs

FROM scratch

COPY --from=build rootfs/ /

CMD [ "/bin/busybox", "sh" ]

package.cfg

BR2_PACKAGE_PYTHON3=y
BR2_PACKAGE_BUSYBOX=y

RUN support/kconfig/merge_config.sh -m .config package.cfg

does this mean i don't need to specify arch?

RUN support/kconfig/merge_config.sh -m .config package.cfg

does this mean i don't need to specify arch?

Correct, you don't need to specify anything that was already set in https://github.com/balena-io-playground/buildroot-base/tree/main/config

👍