Enhance Makefile with publish target and add git information for Docker image versioning

Makefile

@@ -44,4 +44,34 @@ shell:
 		$(IMAGE) /bin/sh
 
 help:
-	@printf "Usage:\n  make build        Build local docker image ($(IMAGE))\n  make run          Run image mounting project into $(WORKDIR) (port $(PORT))\n  make stop         Stop running container\n  make shell        Start a shell in a container with project mounted\n\nOverride variables: IMAGE, CONTAINER, WORKDIR, PORT, DOCKER_BUILD_ARGS, DOCKER_RUN_ARGS\n"
+	@printf "Usage:\n  make build        Build local docker image ($(IMAGE))\n  make run          Run image mounting project into $(WORKDIR) (port $(PORT))\n  make stop         Stop running container\n  make shell        Start a shell in a container with project mounted\n\nOverride variables: IMAGE, CONTAINER, WORKDIR, PORT, DOCKER_BUILD_ARGS, DOCKER_RUN_ARGS\n"
+
+git_info:
+	$(eval GIT_HASH = $(shell git rev-parse HEAD))
+	$(eval GIT_BRANCH = $(shell git rev-parse --abbrev-ref HEAD))
+
+
+publish: git_info
+	$(eval VERSION = $(shell git describe --tags 2>/dev/null | grep -e '^[0-9]\.[0-9]*\.[0-9]'))
+	@if [ -z "${VERSION}" ]; \
+     then \
+      echo "Error: Nincs verzió szám"; \
+	  exit 1; \
+	 fi
+	#@sudo docker login $(DOCKER_REGISTRY)
+	@sudo docker build \
+		--no-cache \
+		--label version=$(VERSION) \
+		--label org.opencontainers.image.created=$(shell date -u +"%Y-%m-%dT%H:%M:%SZ") \
+		--label org.opencontainers.image.authors="Krisztián Szabolcsi" \
+		--label org.opencontainers.image.version=$(VERSION) \
+		--label org.opencontainers.image.licences=MIT \
+		--label org.opencontainers.image.source=https://${DOCKER_REGISTRY}/${OWNER}/${NAME} \
+		--label org.opencontainers.image.revision=$(GIT_HASH) \
+		--label org.opencontainers.image.vendor="Krisztián Szabolcsi" \
+		--label org.opencontainers.image.description="IMAP email notification service using ntfy.sh" \
+		--label org.opencontainers.image.source.branch=$(GIT_BRANCH) \
+		--label org.opencontainers.image.source.hash=$(GIT_HASH) \
+		-t $(DOCKER_REGISTRY)/${OWNER}/$(NAME):$(VERSION) \
+		.
+	@sudo docker push $(DOCKER_REGISTRY)/$(NAME):$(VERSION)

project.env

@@ -1 +1,2 @@
 NAME=imap_notification
+DOCKER_REGISTRY=gitea.szabolcsi.dev