Put it in the right place!

base/Dockerfile

@@ -124,7 +124,7 @@ RUN fix-permissions /opt/app-root/ && \
 COPY base/passwd.template /tmp/passwd.template
 COPY base/group.template /tmp/group.template
 COPY base/start-notebook.sh /opt/app-root/etc/
-COPY base/.spynnaker.cfg /opt/root/src/
+COPY base/.spynnaker.cfg /opt/app-root/src/
 RUN chmod +x /opt/app-root/etc/start-notebook.sh
 
 WORKDIR /opt/app-root/src/