Multistage Docker build

Dockerfile

@@ -1,16 +1,27 @@
-FROM python:2.7-alpine
+FROM alpine as build
 
 RUN apk add --no-cache build-base curl
 
-COPY dcmtk.patch /tmp
-RUN cd /tmp \
- && curl http://support.dcmtk.org/redmine/attachments/download/87/dcmtk-3.6.1_20150924.tar.gz | tar xz \
- && cd dcmtk-* \
- && patch -p1 </tmp/dcmtk.patch \
- && ./configure \
- && make config-all ofstd-all oflog-all dcmdata-all dcmimgle-all dcmimage-all dcmjpeg-all dcmjpls-all dcmtls-all dcmnet-all \
- && make dcmdata-install dcmnet-install \
- && rm -rf /tmp/dcmtk*
+WORKDIR dcmtk
+RUN curl http://support.dcmtk.org/redmine/attachments/download/87/dcmtk-3.6.1_20150924.tar.gz | tar xz --strip-components 1
+
+COPY dcmtk.patch .
+RUN patch -p1 <dcmtk.patch
+
+RUN ./configure
+RUN make config-all ofstd-all oflog-all dcmdata-all dcmimgle-all dcmimage-all dcmjpeg-all dcmjpls-all dcmtls-all dcmnet-all
+RUN make dcmdata-install dcmnet-install
+
+
+
+FROM python:2.7-alpine
+
+RUN apk add --no-cache libstdc++
+
+COPY --from=build /usr/local/bin                /usr/local/bin
+COPY --from=build /usr/local/etc/dcmtk          /usr/local/etc/dcmtk
+COPY --from=build /usr/local/share/dcmtk        /usr/local/share/dcmtk
+COPY --from=build /usr/local/share/doc/dcmtk    /usr/local/share/doc/dcmtk
 
 COPY . /src/reaper