Makefile and Dockerfile updates.

Author: MartinHeinz

Makefile

@@ -0,0 +1,66 @@
+# The binary to build (just the basename).
+MODULE := blueprint
+
+# Where to push the docker image.
+REGISTRY ?= docker.pkg.github.com/martinheinz/python-project-blueprint
+
+IMAGE := $(REGISTRY)/$(MODULE)
+
+# This version-strategy uses git tags to set the version string
+TAG := $(shell git describe --tags --always --dirty)
+
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+run:
+	@python -m $(MODULE)
+
+test:
+	@pytest
+
+# Example: make build-prod VERSION=1.0.0
+build-prod:
+	@echo "\n${BLUE}Building Production image with labels:\n"
+	@echo "name: $(MODULE)"
+	@echo "version: $(VERSION)${NC}\n"
+	@sed                                     \
+	    -e 's|{NAME}|$(MODULE)|g'            \
+	    -e 's|{VERSION}|$(VERSION)|g'        \
+	    prod.Dockerfile | docker build -t $(IMAGE):$(VERSION) -f- .
+
+
+build-dev:
+	@echo "\n${BLUE}Building Development image with labels:\n"
+	@echo "name: $(MODULE)"
+	@echo "version: $(TAG)${NC}\n"
+	@sed                                 \
+	    -e 's|{NAME}|$(MODULE)|g'        \
+	    -e 's|{VERSION}|$(TAG)|g'        \
+	    dev.Dockerfile | docker build -t $(IMAGE):$(TAG) -f- .
+
+# Example: make shell CMD="-c 'date > datefile'"
+shell: build-dev
+	@echo "\n${BLUE}Launching a shell in the containerized build environment...${NC}\n"
+		@docker run                                                 \
+			-ti                                                     \
+			--rm                                                    \
+			--entrypoint /bin/bash                                  \
+			-u $$(id -u):$$(id -g)                                  \
+			$(IMAGE):$(TAG)										    \
+			$(CMD)
+
+# Example: make push VERSION=0.0.2
+push: build-prod
+	@echo "\n${BLUE}Pushing image to GitHub Docker Registry...${NC}\n"
+	@docker push $(IMAGE):$(VERSION)
+
+version:
+	@echo $(TAG)
+
+.PHONY: clean image-clean build-prod push
+
+clean:
+	rm -rf .pytest_cache
+
+docker-clean:
+	@docker system prune --filter "label=name=$(IMAGE)"

dev.Dockerfile

@@ -14,11 +14,14 @@ COPY . /app
 WORKDIR /app
 RUN /venv/bin/pytest
 
-FROM python:3.8.1-alpine3.11 AS runner
+FROM python:3.8.1 AS runner
 COPY --from=tester /venv /venv
 COPY --from=tester /app /app
 
 WORKDIR /app
 
 ENTRYPOINT ["/venv/bin/python3", "-m", "blueprint"]
 USER 1001
+
+LABEL name={NAME}
+LABEL version={VERSION}

prod.Dockerfile

@@ -22,3 +22,6 @@ WORKDIR /app
 
 ENTRYPOINT ["/venv/bin/python3", "-m", "blueprint"]
 USER 1001
+
+LABEL name={NAME}
+LABEL version={VERSION}