Fix 1705 - Adding non-root user to run RO

Change-Id: I5166c695304f7caa0f1781105eab143bf37d071b
Signed-off-by: beierlm <mark.beierl@canonical.com>
diff --git a/docker/RO/Dockerfile b/docker/RO/Dockerfile
index cf6d714..055c615 100644
--- a/docker/RO/Dockerfile
+++ b/docker/RO/Dockerfile
@@ -96,10 +96,21 @@
 COPY --from=INSTALL /usr/bin/genisoimage /usr/bin/genisoimage
 COPY --from=INSTALL /etc/protocols /etc/protocols
 
-VOLUME /var/log/osm
-
 EXPOSE 9090
 
+# Creating the user for the app
+RUN groupadd -g 1000 appuser && \
+    useradd -u 1000 -g 1000 -d /app appuser && \
+    mkdir -p /app/osm_ro && \
+    mkdir -p /app/storage/kafka && \
+    mkdir /app/log && \
+    chown -R appuser:appuser /app
+
+WORKDIR /app/osm_ro
+
+# Changing the security context
+USER appuser
+
 # Two mysql databases are needed (DB and DB_OVIM). Can be hosted on same or separated containers
 # These ENV must be provided
 ENV RO_DB_HOST=""
@@ -141,4 +152,3 @@
   CMD curl --silent --fail http://localhost:9090/ro || exit 1
 
 CMD ["python3", "-u", "-m", "osm_ng_ro.ro_main"]
-