docker: not download data automatically (#533)

docker service container does not download data automatically.
User needs to use the /usr/local/bin/download_data.sh script

docker/Dockerfile

@@ -101,9 +101,12 @@ COPY user_service-ubuntu.sh .
 RUN bash user_service-ubuntu.sh
 RUN rm user_service-ubuntu.sh requirements-service.txt
 
+COPY download_data.sh /usr/local/bin/
+
 COPY service.sh /usr/local/bin/
 ENV DEBIAN_FRONTEND ''
 CMD ["/usr/local/bin/service.sh"]
 
 FROM service as multi
 COPY service.multi.sh /usr/local/bin/
+

docker/build_essential-ubuntu.sh

@@ -13,7 +13,8 @@ apt-get install -yq --no-install-recommends \
   man                  \
   make                 \
   ccache               \
-  sudo
+  sudo                 \
+  unzip
 apt-get clean
 
 pushd $INSTALL_DIR

docker/download_data.sh

@@ -0,0 +1,8 @@
+#! /bin/bash
+
+INSTALL_DIR=${1:-/devel}
+
+# download the SIRF-Exercises data
+cd $INSTALL_DIR
+for i in SIRF-Exercises/scripts/download_*.sh; do ./$i $PWD; done
+

docker/service.sh

@@ -4,7 +4,7 @@
 # service.sh [<DEBUG_LEVEL> [<JUPYTER_PORT>]]
 #
 # Arguments:
-#   <DEBUG_LEVEL>  : [default: 0]
+#   <DEBUG_LEVEL>   : [default: 0]
 #   <JUPYTER_PORT>  : [default: 8888]
 ##
 
@@ -36,18 +36,17 @@ GCONFIG=./INSTALL/share/gadgetron/config/gadgetron.xml
 [ -f ./INSTALL/bin/gadgetron ] \
   && ./INSTALL/bin/gadgetron >& gadgetron.log&
 
+# make sure the SIRF-Exercises are in the expected location
+cd /devel
+[ -d SIRF-Exercises ] || cp -a $SIRF_PATH/../../../SIRF-Exercises .
+
 # start jupyter
 if [ ! -f ~/.jupyter/jupyter_notebook_config.py ]; then
   jupyter notebook --generate-config
   echo "c.NotebookApp.password = u'sha1:cbf03843d2bb:8729d2fbec60cacf6485758752789cd9989e756c'" \
   >> ~/.jupyter/jupyter_notebook_config.py
 fi
 
-pushd /devel
-[ -d SIRF-Exercises ] || cp -a $SIRF_PATH/../../../SIRF-Exercises .
-which unzip || sudo apt-get install -yqq unzip
-for i in SIRF-Exercises/scripts/download_*.sh; do ./$i $PWD; done
-popd
 
 # serve a master notebook
 jupyter notebook --ip 0.0.0.0 --port $JUPYTER_PORT --no-browser \