Don't run as root

Change-Id: I5d13bd22d61c4d471c5630d32da9751ad4a5ab3c
diff --git a/container/Dockerfile b/container/Dockerfile
index 7a925d0..a9ed3e4 100644
--- a/container/Dockerfile
+++ b/container/Dockerfile
@@ -14,4 +14,10 @@
 
 COPY tools/ ./
 
+RUN adduser -D loadtest -u 1000 -G users && \
+    chown -R 1000:100 /usr/src/app && \
+    mkdir -p /var/logs && \
+    chown -R 1000:100 /var/logs
+USER loadtest
+
 ENTRYPOINT [ "python3", "./start_test.py" ]