feat(Makefile): Add help output to container build

This patch adds some basic help output to the demo container build. It
adds the general help information to the container-build library file.

The helper include itself is put at the top level, to reduce
dependencies and making the help output optional. This way custom help
commands can still be defined if wanted without any potential of
conflicting with the one from the utils file.

images/.utils/container-build.mk

@@ -32,7 +32,7 @@ DOCKER_FILE_PATH=Containerfile
 .PHONY: pre-build docker-build post-build build release patch-release minor-release major-release tag check-status check-release showver \
 	push pre-push do-push post-push
 
-build: pre-build docker-build post-build
+build: pre-build docker-build post-build ## build and tag container
 
 pre-build:
 
@@ -59,18 +59,18 @@ docker-build: .release
 	@cat .release
 
 
-release: check-status check-release build push
+release: check-status check-release build push ## build release from current git tag and push to registry
 
 
-push: pre-push do-push post-push
+push: pre-push do-push post-push ## Push current image to registry
 
 do-push:
 	podman push $(IMAGE):$(VERSION)
 	podman push $(IMAGE):latest
 
-snapshot: build push
+snapshot: build push ## Build current state and push to registry
 
-showver: .release
+showver: .release ## Print current container tag
 	@. $(RELEASE_SUPPORT); getVersion
 
 tag-patch-release: VERSION := $(shell . $(RELEASE_SUPPORT); nextPatchLevel)
@@ -82,13 +82,13 @@ tag-minor-release: .release tag
 tag-major-release: VERSION := $(shell . $(RELEASE_SUPPORT); nextMajorLevel)
 tag-major-release: .release tag
 
-patch-release: tag-patch-release release
+patch-release: tag-patch-release release ## Release new patch version
 	@echo $(VERSION)
 
-minor-release: tag-minor-release release
+minor-release: tag-minor-release release ## Release new minor version
 	@echo $(VERSION)
 
-major-release: tag-major-release release
+major-release: tag-major-release release ## Release new major version
 	@echo $(VERSION)
 
 

images/demo/Makefile

 include ../.utils/container-build.mk
+include ../../utils/help.mk
 
 pre-build:
 	@echo do some stuff before the docker build