Fix bug 1704 - Adding non-root user to run LCM

Change-Id: I3738bbafdc238c56a51376c79454cb1ebbc384e5
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>
diff --git a/docker/LCM/Dockerfile b/docker/LCM/Dockerfile
index 99c198f..03907d7 100644
--- a/docker/LCM/Dockerfile
+++ b/docker/LCM/Dockerfile
@@ -46,7 +46,6 @@
     && mv linux-amd64/helm /usr/local/bin/helm3 \
     && rm -r linux-amd64/
 
-
 ARG PYTHON3_OSM_COMMON_URL
 ARG PYTHON3_OSM_LCM_URL
 ARG PYTHON3_N2VC_URL
@@ -96,15 +95,23 @@
 COPY --from=INSTALL /usr/lib/x86_64-linux-gnu/ /usr/lib/x86_64-linux-gnu/
 COPY --from=INSTALL /lib/x86_64-linux-gnu/ /lib/x86_64-linux-gnu/
 
-COPY scripts/ scripts/
+COPY scripts/ /app/osm_lcm/scripts/
+
+# Creating the user for the app
+RUN groupadd -g 1000 appuser && \
+    useradd -u 1000 -g 1000 -d /app appuser && \
+    mkdir -p /app/osm_lcm && \
+    mkdir -p /app/storage/kafka && \
+    mkdir /app/log && \
+    chown -R appuser:appuser /app
+
+WORKDIR /app/osm_lcm
+
+# Changing the security context
+USER appuser
 
 ########################################################################
 
-# Used for local storage
-VOLUME /app/storage
-# Used for logs
-VOLUME /app/log
-
 # The following ENV can be added with "docker run -e xxx' to configure LCM
 ENV OSMLCM_RO_HOST         ro
 ENV OSMLCM_RO_PORT         9090
@@ -151,7 +158,5 @@
 HEALTHCHECK --start-period=120s --interval=30s --timeout=30s --retries=1 \
   CMD python3 -m osm_lcm.lcm_hc || exit 1
 
-
 # Run app.py when the container launches
 CMD [ "/bin/bash", "scripts/start.sh" ]
-