Add the version/revision in the Dockerfile

Author: tudoramariei

docker/dockerfiles/Dockerfile.backend

@@ -77,6 +77,15 @@ ENV PATH=/root/.local/bin:$PATH
 # activate the virtualenv:
 RUN . "${VIRTUAL_ENV}/bin/activate"
 
+ARG VERSION
+ARG REVISION
+
+ENV VERSION=${VERSION}
+ENV REVISION=${REVISION}
+
+RUN touch /var/www/seismic/.version && \
+    echo "$VERSION+$(echo ${REVISION} | cut -c 1-7)" > /var/www/seismic/.version
+
 ENTRYPOINT ["/init"]
 
 EXPOSE 80