experiment with central Makefile and extended calver workflow

.github/workflows/service.yaml

@@ -19,3 +19,17 @@ jobs:
 
       - name: Run service ${{ inputs.service_name }} test script
         run: ./test.sh
+
+      - name: Get next version
+        uses: reecetech/[email protected]
+        id: version
+        with:
+          scheme: calver
+
+      - name: Build docker image
+        run: make build
+
+      - name: Release docker image
+        env:
+          VERSION: ${{ steps.version.outputs.version }}
+        run: make release

Makefile.inc

@@ -0,0 +1,21 @@
+.PHONY: test build release
+
+ifndef SERVICE_NAME
+    $(error SERVICE_NAME is not set)
+endif
+
+ifndef VERSION
+    $(error VERSION is not set)
+endif
+
+# Make sure there are no spaces.
+SERVICE_NAME := $(SERVICE_NAME: =_)
+
+test:
+    ./test.sh
+
+build:
+    docker build -t $(SERVICE_NAME) .
+
+release:
+    docker tag $(SERVICE_NAME) $(SERVICE_NAME):$(VERSION)

services/a/Dockerfile

@@ -0,0 +1,6 @@
+FROM debian:12-slim
+
+COPY ./service.sh /service.sh
+RUN chmod +x /service.sh
+
+ENTRYPOINT ["/service.sh"]

services/a/Makefile

@@ -0,0 +1,3 @@
+SERVICE_NAME = $(shell basename $(shell pwd))
+
+include ../../Makefile.inc

services/a/service.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+counter=1
+
+while true; do
+    echo "Service '$SERVICE_NAME': $counter"
+    ((counter++))
+    sleep 1
+done