buildroot-base

a collection of buildroot base images with the target arch rootfs preinstalled

stages

This Dockerfile includes 2 stages:

1. base - just buildroot dependencies and sources
2. rootfs - base plus a pre-compiled rootfs for a specific arch

build

# build the base image for your host
docker build . --build-arg BR_VERSION="2020.11" \
    --target base -t buildroot-base

# build an amd64 rootfs image for your host
docker build . --build-arg BR_VERSION="2020.11" \
    --build-arg ROOTFS_ARCH=amd64 -t buildroot-rootfs-amd64

deploy

Requires docker login to authenticate with your provided IMAGE_REPO.

# enable qemu for multiarch builds
export DOCKER_CLI_EXPERIMENTAL=enabled
docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
docker buildx create --use --driver docker-container

# select an image repo, buildroot release, and tag
export IMAGE_REPO="docker.io/klutchell"
export BR_VERSION="2020.11"
export IMAGE_TAG="2020.11"

# this part will take all day to build & push multiarch images
docker buildx bake --push

examples

Before building examples follow the instructions above to build rootfs images.

# mjpg-streamer
docker build ./app/mjpg-streamer -f app/Dockerfile -t mjpg-streamer

# unbound-dnscrypt
docker build ./app/unbound-dnscrypt -f app/Dockerfile -t unbound-dnscrypt