Docker Compose config validation

.github/workflows/on-pull-request.yml

@@ -18,5 +18,9 @@ jobs:
           pip install --upgrade pip
           pip install --no-deps -r dev-requirements.txt
 
+      # This file is required for Docker Compose validation.
+      - name: Create empty .env file
+        run: touch docker/prometheus-exporter/.env
+
       - name: Run checks
         run: make check

Makefile

@@ -1,4 +1,4 @@
-check: black-check isort-check ruff-check pip-audit
+check: black-check isort-check ruff-check pip-audit docker-compose-validate
 
 black-check:
 	black --check main.py
@@ -11,3 +11,6 @@ ruff-check:
 
 pip-audit:
 	pip-audit --strict --desc -r dev-requirements.txt -r requirements.txt
+
+docker-compose-validate:
+	docker compose config -q