Add CI to the repository

.gitlab-ci.yml

@@ -0,0 +1,57 @@
+variables:
+  CI_BUILD_IMAGE: "registry.gitlab.com/ericvh/docker-buildx-qemu"
+  CI_BUILDX_ARCHS: "linux/amd64,linux/arm64,linux/arm"
+
+.build:
+  image: $CI_BUILD_IMAGE
+  stage: build
+  services:
+    - name: docker:dind
+      entrypoint: ["env", "-u", "DOCKER_HOST"]
+      command: ["dockerd-entrypoint.sh"]
+  variables:
+    DOCKER_HOST: tcp://docker:2375/
+    DOCKER_DRIVER: overlay2
+    # See https://github.com/docker-library/docker/pull/166
+    DOCKER_TLS_CERTDIR: ""
+  retry: 2
+  before_script:
+    - |
+      if [[ -z "$CI_COMMIT_TAG" ]]; then
+        export CI_APPLICATION_REPOSITORY=${CI_APPLICATION_REPOSITORY:-$CI_REGISTRY_IMAGE/$CI_COMMIT_REF_SLUG}
+        export CI_APPLICATION_TAG=${CI_APPLICATION_TAG:-$CI_COMMIT_SHA}
+      else
+        export CI_APPLICATION_REPOSITORY=${CI_APPLICATION_REPOSITORY:-$CI_REGISTRY_IMAGE}
+        export CI_APPLICATION_TAG=${CI_APPLICATION_TAG:-$CI_COMMIT_TAG}
+      fi
+    - echo "$CI_REGISTRY_PASSWORD" | docker login -u "$CI_REGISTRY_USER" --password-stdin $CI_REGISTRY
+
+build:buildx-master:
+  extends: .build
+  only: 
+    refs:
+      - master
+    variables:
+      - $CI_BUILDX_ARCHS
+  script:
+    # Use docker-container driver to allow useful features (push/multi-platform)
+    - update-binfmts --enable # Important: Ensures execution of other binary formats is enabled in the kernel
+    - docker buildx create --driver docker-container --use
+    - docker buildx inspect --bootstrap
+    - docker buildx ls
+    - docker buildx build --platform $CI_BUILDX_ARCHS --progress plain --pull -t "$CI_REGISTRY_IMAGE" --push .
+
+build:buildx:
+  extends: .build
+  only:
+    variables:
+      - $CI_BUILDX_ARCHS
+  except:
+    refs:
+       - master
+  script:
+    - update-binfmts --enable # Important: Ensures execution of other binary formats is enabled in the kernel
+    - docker buildx create --driver docker-container --use
+    - docker buildx inspect --bootstrap
+    - docker buildx ls
+    - docker buildx build --platform $CI_BUILDX_ARCHS --progress plain --pull -t "$CI_APPLICATION_REPOSITORY:$CI_APPLICATION_TAG" --push .