version: 2.1 jobs: dockerhubuploadrelease: docker: - image: docker:git steps: - checkout - docker_prepare - run: docker login --username $DOCKER_HUB_USERNAME --password $DOCKER_HUB_PASSWORD # for release builds, we want to get the amd64 image out asap, so first # we do an amd64-only build, before following up with a multiarch build. - docker_build: tag: -t matrixdotorg/synapse:${CIRCLE_TAG} platforms: linux/amd64 - docker_build: tag: -t matrixdotorg/synapse:${CIRCLE_TAG} platforms: linux/amd64,linux/arm/v7,linux/arm64 dockerhubuploadlatest: docker: - image: docker:git steps: - checkout - docker_prepare - run: docker login --username $DOCKER_HUB_USERNAME --password $DOCKER_HUB_PASSWORD # for `latest`, we don't want the arm images to disappear, so don't update the tag # until all of the platforms are built. - docker_build: tag: -t matrixdotorg/synapse:latest platforms: linux/amd64,linux/arm/v7,linux/arm64 workflows: build: jobs: - dockerhubuploadrelease: filters: tags: only: /v[0-9].[0-9]+.[0-9]+.*/ branches: ignore: /.*/ - dockerhubuploadlatest: filters: branches: only: master commands: docker_prepare: description: Sets up a remote docker server, downloads the buildx cli plugin, and enables multiarch images parameters: buildx_version: type: string default: "v0.4.1" steps: - setup_remote_docker: # 19.03.13 was the most recent available on circleci at the time of # writing. version: 19.03.13 - run: apk add --no-cache curl - run: mkdir -vp ~/.docker/cli-plugins/ ~/dockercache - run: curl --silent -L "https://github.com/docker/buildx/releases/download/<< parameters.buildx_version >>/buildx-<< parameters.buildx_version >>.linux-amd64" > ~/.docker/cli-plugins/docker-buildx - run: chmod a+x ~/.docker/cli-plugins/docker-buildx # install qemu links in /proc/sys/fs/binfmt_misc on the docker instance running the circleci job - run: docker run --rm --privileged multiarch/qemu-user-static --reset -p yes # create a context named `builder` for the builds - run: docker context create builder # create a buildx builder using the new context, and set it as the default - run: docker buildx create builder --use docker_build: description: Builds and pushed images to dockerhub using buildx parameters: platforms: type: string default: linux/amd64 tag: type: string steps: - run: docker buildx build -f docker/Dockerfile --push --platform << parameters.platforms >> --label gitsha1=${CIRCLE_SHA1} << parameters.tag >> --progress=plain .