new single-stage multiarch ci

.gitlab-ci.yml

@@ -1,42 +1,21 @@
-image: docker:19.03
-services:
-  - docker:19.03-dind
+image: registry.gitlab.tictex.eu/docker/docker-with-buildx-git:latest
+
 variables:
-  DOCKER_DRIVER: overlay
+  DOCKER_HOST: tcp://docker:2375/
+  DOCKER_DRIVER: overlay2
   DOCKER_TLS_CERTDIR: ""
-stages:
-  - buildx
-  - deploy
 
-buildx:
-  image: docker:19.03-git
-  stage: buildx
-  variables:
-    GIT_STRATEGY: none
-  artifacts:
-    paths:
-      - buildx
-    expire_in: 1 hour
-  services:
-    - docker:19.03-dind
-  script:
-    - export DOCKER_BUILDKIT=1
-    - git clone git://github.com/docker/buildx ./docker-buildx
-    - docker build --platform=local -o . ./docker-buildx
+services:
+  - docker:dind
 
-deploy:
-  image: docker:19.03
-  stage: deploy
-  services:
-    - name: docker:19.03-dind
-      command: ["--experimental"]
-  before_script:
-    - mkdir -p ~/.docker/cli-plugins
-    - mv buildx ~/.docker/cli-plugins/docker-buildx
-    - docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
+build:
+  stage: build
   variables:
     IMAGE_TAG: $CI_REGISTRY_IMAGE:$CI_COMMIT_REF_SLUG
   script:
     - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
     - docker buildx create --use --name mybuilder
     - docker buildx build --platform linux/amd64,linux/arm64,linux/arm/v7 --push -t $IMAGE_TAG .
+    - docker pull $IMAGE_TAG
+    - docker tag $IMAGE_TAG $CI_REGISTRY_IMAGE:latest
+    - docker push $CI_REGISTRY_IMAGE:latest