use multistage docker file

Dockerfile

@@ -1,26 +1,35 @@
-FROM python:3.11.4-slim-bullseye
+FROM python:3.11.4-bullseye as builder
+
 LABEL maintainer="NSGI <[email protected]>"
 
 COPY . /src
 
 # ignore pip warning about running pip as root - since we are in a containerized sandboxed environment anyways...
 ENV ENV PIP_ROOT_USER_ACTION=ignore
 
-RUN apt-get update && \
-    apt-get install -y \
-        moreutils \
-        curl \
-        git && \
-    pip install --upgrade setuptools && \
+WORKDIR /src
+
+RUN pip install --upgrade setuptools && \
     pip install --upgrade pip && \
-    pip install /src
+    pip install --upgrade build && \
+    python -m build
 
-# TODO: investigate how to properly setup Dockerfile for production use
+WORKDIR /tifs
 
-RUN cd /usr/local/lib/python3.11/site-packages/pyproj/proj_dir/share/proj && \
-    curl -o nl_nsgi_nlgeo2018.tif https://cdn.proj.org/nl_nsgi_nlgeo2018.tif && \
+RUN curl -o nl_nsgi_nlgeo2018.tif https://cdn.proj.org/nl_nsgi_nlgeo2018.tif && \
     curl -o nl_nsgi_rdcorr2018.tif https://cdn.proj.org/nl_nsgi_rdcorr2018.tif && \
     curl -o nl_nsgi_rdtrans2018.tif https://cdn.proj.org/nl_nsgi_rdtrans2018.tif
 
+
+FROM python:3.11.4-slim-bullseye as runner
+
+ENV ENV PIP_ROOT_USER_ACTION=ignore
+
+COPY --from=builder /src/dist/coordinate_transformation_api-2*.whl .
+
+RUN pip install coordinate_transformation_api-2*.whl
+
+COPY --from=builder /tifs/* /usr/local/lib/python3.11/site-packages/pyproj/proj_dir/share/proj
+
 EXPOSE 8000
 ENTRYPOINT [ "ct-api" ]