Fix bug 1708 - Adding non-root user to run PLA

Change-Id: I4c22ceb50c953f75654670fdd1b35e55e90db280
Signed-off-by: sousaedu <eduardo.sousa@canonical.com>
diff --git a/docker/PLA/Dockerfile b/docker/PLA/Dockerfile
index 36865e5..c86d973 100644
--- a/docker/PLA/Dockerfile
+++ b/docker/PLA/Dockerfile
@@ -75,12 +75,26 @@
 COPY --from=INSTALL /usr/bin/osm* /usr/bin/
 COPY --from=INSTALL /minizinc /minizinc
 
-RUN mkdir /entry_data \
-    && mkdir /entry_data/mzn-lib \
-    && ln -s /entry_data/mzn-lib /minizinc/share/minizinc/exec
+RUN mkdir /entry_data && \
+    mkdir /placement && \
+    mkdir /entry_data/mzn-lib && \
+    ln -s /entry_data/mzn-lib /minizinc/share/minizinc/exec
 
-COPY scripts/ scripts/
-RUN mkdir /placement
+COPY scripts/ /app/osm_pla/scripts/
+
+# Creating the user for the app
+RUN groupadd -g 1000 appuser && \
+    useradd -u 1000 -g 1000 -d /app appuser && \
+    mkdir -p /app/osm_pla && \
+    chown -R appuser:appuser /app && \
+    chown -R appuser:appuser /entry_data && \
+    chown -R appuser:appuser /minizinc && \
+    chown -R appuser:appuser /placement
+
+WORKDIR /app/osm_pla
+
+# Changing the security context
+USER appuser 
 
 ENV OSMPLA_MESSAGE_DRIVER kafka
 ENV OSMPLA_MESSAGE_HOST kafka
@@ -101,4 +115,4 @@
 #HEALTHCHECK --start-period=120s --interval=10s --timeout=5s --retries=5 \
 #  CMD osm-pla-healthcheck || exit 1
 
-CMD /bin/bash scripts/start.sh
+CMD [ "/bin/bash", "scripts/start.sh" ]
diff --git a/installers/docker/osm_pla/pla.yaml b/installers/docker/osm_pla/pla.yaml
index 00c5cb0..79590ed 100644
--- a/installers/docker/osm_pla/pla.yaml
+++ b/installers/docker/osm_pla/pla.yaml
@@ -29,6 +29,10 @@
       labels:
         app: pla
     spec:
+      securityContext:
+        runAsUser: 1000
+        runAsGroup: 1000
+        fsGroup: 1000
       initContainers:
        - name: kafka-mongo-test
          image: alpine:latest
@@ -43,10 +47,3 @@
           value: kafka
         - name: OSMPLA_DATABASE_URI
           value: mongodb://mongodb-k8s:27017/?replicaSet=rs0
-        volumeMounts:
-        - name: osm-packages
-          mountPath: /app/storage
-      volumes:
-      - name: osm-packages
-        hostPath:
-         path: /var/lib/osm/osm_osm_packages/_data