-RUN mkdir -p /opt/app/osaaf && chown ${USER}:${USER} /opt/app/osaaf
-RUN mkdir -p /opt/app/aaf/status && chown ${USER}:${USER} /opt/app/aaf/status
-RUN chown -R ${USER}:${USER} /opt/app/aaf
+RUN mkdir -p /opt/app/osaaf
+RUN mkdir -p /opt/app/aaf/status
+RUN if [ -n "${DUSER}" ]; then chown ${DUSER}:${DUSER} /opt/app/aaf/status \
+ && chown ${DUSER}:${DUSER} /opt/app/osaaf \
+ && chown -R ${DUSER}:${DUSER} /opt/app/aaf; fi