It sounds like there's some kind of squabble going on with the Docker and buildx developers that means the official docker.io/docker images aren't including buildx. Le sigh.
.dind:
image: docker:latest
services:
- name: docker:dind
alias: docker
command: ["--experimental"]
variables:
DOCKER_HOST: tcp://docker:2376
DOCKER_TLS_VERIFY: "1"
DOCKER_TLS_CERTDIR: "/certs"
DOCKER_CERT_PATH: "/certs/client"
MULTIARCH_PLATFORMS: "linux/arm64,linux/amd64,linux/arm/v6,linux/arm/v7"
before_script:
- echo $CI_REGISTRY_PASSWORD | docker login -u "$CI_REGISTRY_USER" --password-stdin "$CI_REGISTRY"
- >
[[ -z "$DOCKERHUB_TOKEN" ]] || cat "$DOCKERHUB_TOKEN" | docker login -u "$DOCKERHUB_USERNAME" docker.io
- mkdir -p ~/.docker/cli-plugins
- apk add -q dpkg curl && export ARCH="$(dpkg --print-architecture | sed -e 's/.*-//')"
- curl -sSLo ~/.docker/cli-plugins/docker-buildx "https://github.com/docker/buildx/releases/download/v0.7.1/buildx-v0.7.1.linux-$ARCH"
- chmod a+x ~/.docker/cli-plugins/docker-buildx
- docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
- [[ -z "$DEBUG" ]] || docker version
- [[ -z "$DEBUG" ]] || docker buildx ls
- docker context create builder
- docker buildx create --name multiarch --driver docker-container --use builder
- [[ -z "$DEBUG" ]] || docker buildx inspect --bootstrap
.multiarch-container:
extends: .dind
variables:
CACHE_IMAGE_NAME: $CI_REGISTRY_IMAGE:$CI_COMMIT_SHA
script:
- >-
docker buildx build -f Dockerfile .
--progress plain
--platform "$MULTIARCH_PLATFORMS"
--pull --push
--cache-from="type=registry,ref=${CACHE_IMAGE_NAME}"
--cache-to="type=registry,ref=${CACHE_IMAGE_NAME}"
--build-arg BUILD_DATE="$(date +'%Y-%m-%d')"
--build-arg VCS_REF="$CI_COMMIT_SHA"
$(for tag in $TAGS ; do echo -t $tag ; done)
- for tag in $TAGS ; do docker manifest inspect $tag ; done
build:container:
stage: build
extends: .multiarch-container
variables:
TAGS: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG-$CI_COMMIT_SHORT_SHA
upload:container:
stage: upload
extends: .multiarch-container
variables:
TAGS: docker.io/$DOCKERHUB_USERNAME/$CI_PROJECT_NAME:$CI_COMMIT_TAG docker.io/$DOCKERHUB_USERNAME/$CI_PROJECT_NAME:latest
rules:
- if: '$CI_COMMIT_TAG =~ /^v[0-9]{1,4}\.[0-9]{1,4}\.[0-9]{1,4}$/'