New docker image: haskell 8.8.3, STACK_ROOT and lts-15.4

Dockerfile

@@ -1,21 +1,30 @@
-FROM haskell:8.6.5
+FROM haskell:8.8.3
 
-COPY --from=dastapov/hledger:1.17 /usr/bin/hledger* /usr/bin/
+ENV RESOLVER lts-15.4
+
+COPY --from=dastapov/hledger:1.17.1.1 /usr/bin/hledger* /usr/bin/
 
 COPY ./01-getting-started/export/export.hs /tmp
 
 # Precompile all packages needed for export.hs
-RUN /tmp/export.hs -v && rm -r /tmp/export.hs /root/.stack/indices/Hackage/00-index.tar /root/.stack/indices/Hackage/00-index.tar.gz && chmod -R g+rX,o+rX /root /root/.stack/
+RUN stack --resolver $RESOLVER --system-ghc script --package shake --package directory /tmp/export.hs -- -v \
+    && rm -r /tmp/export.hs \
+    && chmod -R g+wrX,o+wrX /root \
+    && apt-get update \
+    && apt-get install --yes patchutils gawk sudo \
+    && rm -rf /var/lib/apt/lists
 
-RUN apt-get update && apt-get install --yes patchutils gawk && rm -rf /var/lib/apt/lists
+RUN adduser --system --ingroup root hledger
 
 # This is where the data dir would be mounted to
 RUN mkdir full-fledged-hledger
-WORKDIR full-fledged-hledger
 VOLUME full-fledged-hledger
 
-RUN mkdir /home/user && chmod 0777 /home/user
-ENV HOME /home/user
-RUN echo "cp -a /root/.stack /home/user" > /home/user/.bashrc
+ENV STACK_ROOT /root/.stack
+RUN echo "allow-different-user: true" >> /root/.stack/config.yaml
+
+USER hledger
+WORKDIR full-fledged-hledger
+ENV LC_ALL C.UTF-8
 
 CMD ["bash"]