diff --git a/test/mocks/mass-pnf-sim/diagnostic.sh b/test/mocks/mass-pnf-sim/diagnostic.sh
new file mode 100755
index 0000000..99e35cd
--- /dev/null
+++ b/test/mocks/mass-pnf-sim/diagnostic.sh
@@ -0,0 +1,30 @@
+#!/bin/bash
+
+echo "======= docker ps"
+docker ps
+
+echo "======= Docker image cache"
+docker images nexus3.onap.org:10003/onap/masspnf-simulator
+
+export NUM_OF_SIMS=`find pnf-sim-lw* -maxdepth 0 | wc -l`
+echo $NUM_OF_SIMS
+
+if [ "$NUM_OF_SIMS" -gt 0 ];
+then
+	echo "======= docker-compose, first instance"
+	cat pnf-sim-lw-0/docker-compose.yml
+	
+	echo "======= Java config.yml, first instance"
+	cat pnf-sim-lw-0/config/config.yml
+fi
+
+if (("$NUM_OF_SIMS" > 2));
+then
+	echo "======= docker-compose, last instance"
+	cat pnf-sim-lw-$(($NUM_OF_SIMS-1))/docker-compose.yml
+	
+	echo "======= Java config.yml, last instance"
+	cat pnf-sim-lw-$(($NUM_OF_SIMS-1))/config/config.yml
+fi
+
+