Add static routes instead of changing rp_filter

- remove the shell options '-e', script should not stop if it can't
access the TOST.

Change-Id: I15fc03229dc16bc3f484d5221701fb34f9eb6781
diff --git a/apps/dbuf/templates/configmap-config.yaml b/apps/dbuf/templates/configmap-config.yaml
index 2df6d11..e41a9ae 100644
--- a/apps/dbuf/templates/configmap-config.yaml
+++ b/apps/dbuf/templates/configmap-config.yaml
@@ -11,10 +11,15 @@
   labels:
     {{- include "dbuf.labels" . | nindent 4 }}
 data:
-  push-onos: |
+  config: |
     #!/bin/sh
-    set -e -x
+    set -x
     env
+    export IFS=','
+    for r in $STATIC_ROUTES; do
+      ip route add $r dev $DP_INTERFACE
+    done
+    unset IFS
     ifconfig
     while true
     do