.gitlab-ci.yml: docker push

.gitlab-ci.yml

@@ -197,25 +197,43 @@ build:macOS:
     - pip3 install -U requests
     - python3 ./ci/gh_actions.py ${CI_COMMIT_REF_NAME} ${CI_COMMIT_SHA}
 
-docker:
+.docker: &docker
   <<: *nodep
-  stage: build
   image: docker:latest
-  <<: *multi_platform
+  variables:
+    DOCKER_IMAGE_NAME: cznic/knot-resolver:test
   only:
     refs:
       - branches@knot/knot-resolver
   tags:
-    - ${PLATFORM}
+    - amd64
     - dind
-  variables:
-    DOCKER_IMAGE_NAME: knot-resolver-test:${CI_COMMIT_SHA}
+
+docker:build:
+  <<: *docker
+  stage: build
   script:
-    - docker build --no-cache -t ${DOCKER_IMAGE_NAME} .
+    - >
+      docker buildx build --no-cache
+      --platform linux/amd64,linux/arm/v7,linux/arm64/v8
+      --tag ${DOCKER_IMAGE_NAME} .
     # TODO: perhaps try if the running image answers queries
   after_script:  # remove dangling images to avoid running out of disk space
     - docker rmi ${DOCKER_IMAGE_NAME}
     - docker rmi $(docker images -f "dangling=true" -q)
+
+docker:push:
+  stage: deploy
+  needs:
+    - docker:build
+  script:
+    - docker login --username ${DOCKER_HUB_USER} --password ${DOCKER_HUB_TOKEN}
+    - docker push $DOCKER_IMAGE_NAME
+  after_script:  # remove dangling images to avoid running out of disk space
+    - docker rmi ${DOCKER_IMAGE_NAME}
+    - docker rmi $(docker images -f "dangling=true" -q)
+  when: manual
+
 # }}}
 
 # sanity {{{