Add gcube-data creation and move eXist's DB to NFS if the instance is a collector

Dockerfile

@@ -39,6 +39,7 @@ RUN chmod 755 /home/gcube/gCore/bin/gcore-start-container
 # RUN /home/gcube/gCore/bin/gcore-undeploy-service org.gcube.common.searchservice.resultsetservice
 RUN /home/gcube/gCore/bin/gcore-undeploy-service resultsetservice-3.1.0-4.16.0-126939
 EXPOSE 8080
+RUN mkdir /gcube-data && chown gcube.nogroup /gcube-data
 USER gcube
 ENTRYPOINT exec /home/gcube/gCore/bin/gcore-start-container
 # For Spring-Boot project, use the entrypoint below to reduce Tomcat startup time.

src/gcube-start-container.sh

@@ -1,4 +1,23 @@
-#! /bin/sh
+#! /bin/bash
+
+
+if [ -n "$EXIST_HOME" ]; then
+  # our container is running a IS Collector
+  if [ -L "$EXIST_HOME/webapp/WEB-INF/data" ] ; then
+      # exist data has been already mounted on NFS
+      echo "eXist data should be already in place on NFS"
+  elif [ -d "$EXIST_HOME/webapp/WEB-INF/data" ] ; then
+      echo "First run: set up our directory structure on the NFS mountpoint"
+      mkdir -p /gcube-data/{db,backup}
+      mv $EXIST_HOME/webapp/WEB-INF/{data,logs,attachments} /gcube-data/db
+      for dir in {data,logs,attachments}; do
+        ln -s /gcube-data/db/${dir} $EXIST_HOME/webapp/WEB-INF/${dir}
+      done
+  else
+      echo "Not a link, not a directory: a pony :-)?"
+  fi
+fi
+
 
 if [ -z "$GLOBUS_LOCATION"  ]
 then