Update docker image

Dockerfile

@@ -1,36 +1,46 @@
+# syntax=docker/dockerfile:1.4
 FROM python:3.10.4-slim-bullseye
 
-LABEL org.opencontainers.image.title="GreatAI package wrapper container"
+LABEL org.opencontainers.image.title="GreatAI package wrapper image"
 LABEL org.opencontainers.image.vendor="ScoutinScience B.V."
 LABEL org.opencontainers.image.authors="andras@schmelczer.dev"
 LABEL org.opencontainers.image.source="https://github.com/schmelczer/great-ai"
 
+SHELL ["/bin/bash", "-c"]
+
 ENV ENVIRONMENT=production
-EXPOSE 6060
 
 # curl is needed for the healthcheck
 # build-essentials are needed for building packages
 RUN DEBIAN_FRONTEND=noninteractive apt update &&\
-    apt install curl build-essential -y &&\
-    rm -rf /var/lib/apt/lists/*
+	apt install curl build-essential -y &&\
+	rm -rf /var/lib/apt/lists/*
 
 WORKDIR /dependencies
 COPY . great_ai
 RUN python3 -m pip --no-cache-dir install --upgrade pip &&\
-    pip install --no-cache-dir ./great_ai &&\
-    rm -rf great_ai
+	pip install --no-cache-dir ./great_ai &&\
+	rm -rf great_ai
 
 HEALTHCHECK \
-    --interval=10s \
-    --timeout=60s  \
-    --start-period=30s \
-    --retries=5 \
-    CMD [ "curl", "--fail", "http://localhost:6060/health" ]
+	--interval=10s \
+	--timeout=60s  \
+	--start-period=30s \
+	--retries=5 \
+	CMD [ "curl", "--fail", "http://localhost:6060/health" ]
 
 WORKDIR /app
-VOLUME /app
+COPY <<EOF hello_world.py
+from great_ai import GreatAI
+\
+@GreatAI.create
+def hello_world(name: str) -> str:
+	"""Learn more about GreatAI at https://great-ai.scoutinscience.com"""
+	return f"Hello {name}!"
+EOF
 
-COPY docs/hello_world.py .
+EXPOSE 6060
+VOLUME /app
 
 ENTRYPOINT ["/usr/local/bin/python3", "-m", "great_ai"]
 CMD ["hello_world.py"]