Update .gitlab-ci.yml

.gitlab-ci.yml

@@ -9,7 +9,7 @@
 # This template uses one generic job with conditional builds
 # for the default branch and all other (MR) branches.
 
-docker-build:
+docker-build-arm64:
   # Use the official docker image.
   image: docker:latest
   tags:
@@ -42,3 +42,30 @@ docker-build:
     - if: $CI_COMMIT_BRANCH
       exists:
         - Dockerfile
+
+docker-build:
+  # Use the official docker image.
+  image: jdrouet/docker-with-buildx
+  stage: build
+  services:
+    - docker:dind
+  before_script:
+    - docker login -u "$CI_REGISTRY_USER" -p "$CI_REGISTRY_PASSWORD" $CI_REGISTRY
+  # Default branch leaves tag empty (= latest tag)
+  # All other branches are tagged with the escaped branch name (commit ref slug)
+  script:
+    - |
+      if [[ "$CI_COMMIT_BRANCH" == "$CI_DEFAULT_BRANCH" ]]; then
+        tag=""
+        echo "Running on default branch '$CI_DEFAULT_BRANCH': tag = 'latest'"
+      else
+        tag=":$CI_COMMIT_REF_SLUG"
+        echo "Running on branch '$CI_COMMIT_BRANCH': tag = $tag"
+      fi
+    - docker buildx create --use
+    - docker buildx build --push --platform linux/arm/v7,linux/386,linux/amd64 --tag "$CI_REGISTRY_IMAGE${tag}" .
+  # Run this job in a branch where a Dockerfile exists
+  rules:
+    - if: $CI_COMMIT_BRANCH
+      exists:
+        - Dockerfile