Update .gitlab-ci.yml, shields/Makefile, shields/version files

shields/Makefile

@@ -0,0 +1,19 @@
+NAMESPACE=alemairebe
+include version
+
+IMAGE=shields
+
+push: get decompress build
+
+get:
+	wget https://github.com/badges/shields/archive/$(VERSION).tar.gz
+
+decompress:
+	tar $(VERSION).tar.bz2
+
+build:
+	docker buildx build --platform linux/amd64,linux/arm64 --push \
+    	  --cache-from=type=registry,ref=${NAMESPACE}/buildx:${IMAGE} \
+	  --cache-to=type=registry,ref=${NAMESPACE}/buildx:${IMAGE} \
+	  --tag ${NAMESPACE}/${IMAGE}:$(VERSION) \
+	  --tag ${CI_REGISTRY_IMAGE}/${IMAGE}:$(VERSION) shields-$(VERSION)

shields/version

@@ -0,0 +1 @@
+VERSION=server-2021-03-01