Update .gitlab-ci.yml, restic/Dockerfile, minio/Dockerfile, restic/version, restic/Makefile files

restic/Dockerfile

@@ -0,0 +1,7 @@
+FROM alpine:3.12.3
+ARG VERSION
+ARG TARGETARCH
+ENV VERSION $VERSION
+ADD https://github.com/restic/restic/releases/download/v${VERSION}/restic_${VERSION}_linux_${TARGETARCH}.bz2 /root/restic.bz2
+RUN bunzip2 /root/restic.bz2 && chmod +x /root/restic && mv /root/restic /usr/bin/restic
+ENTRYPOINT ["/usr/bin/restic"]

restic/Makefile

@@ -0,0 +1,18 @@
+NAMESPACE=alemairebe
+include version
+
+IMAGE=restic
+
+nopush:
+	docker buildx build --platform linux/amd64 --load \
+	    --build-arg VERSION=$(VERSION) \
+    	--tag ${NAMESPACE}/${IMAGE}:$(VERSION) \
+		--tag ${CI_REGISTRY_IMAGE}/${IMAGE}:$(VERSION) .
+
+push:
+	docker buildx build --platform linux/amd64,linux/arm64,linux/arm,linux/ppc64le --push \
+	    --build-arg VERSION=$(VERSION) \
+    	--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) .

restic/version

@@ -0,0 +1 @@
+VERSION=0.11.0