FIN-459 - PIE-1157 - Implement Docker Container Best Practices

* Docker USER directive added to Service
* make test feature added

This change needs to be tested before considered good for production.
The app will be running as user "appuser" instead as root, we need to make sure there are not side effects due this change.

Dockerfile

@@ -11,5 +11,9 @@ RUN bundle config --local set without 'development test' \
     && bundle config --local deployment true \
     && bundle install --jobs 20 --retry 5
 
+RUN adduser --disabled-password -u 1001 appuser \
+   && chown -R appuser:appuser /app
+
+USER appuser:appuser
 ENV RACK_ENV production
 CMD ["bundle", "exec", "ruby", "fomotograph.rb", "-p", "4567"]

Makefile

@@ -11,7 +11,13 @@ export
 all: build
 
 test:
-	@echo "Nothing to test..."
+	docker-compose up -d --build && sleep 10
+	# docker-compose exec test curl http://app:4567/healthcheck
+	docker-compose exec test curl http://app:4567/products.json -o /tmp/test1
+	docker-compose exec test jq '.' /tmp/test1
+	docker-compose exec test curl http://app:4567/erasurez -o /tmp/test2
+	docker-compose exec test jq '.' /tmp/test2
+	docker-compose down
 
 build:
 	docker build -t $(SERVICE_NAME) .

docker-compose.yml

@@ -0,0 +1,10 @@
+version: '3'
+services:
+  app:
+    build:
+      context: .
+    ports:
+      - "4567:4567"
+  test:
+    image: cimg/base:2024.01
+    command: sleep 1000