updated dockerfile for ssh and robot vth

Change-Id: I71d0fa215f2d64a9aaabb0858419538c5a503dce
Signed-off-by: Rohan Patel <rp5811@att.com>
diff --git a/otf-robot-test-head/Dockerfile b/otf-robot-test-head/Dockerfile
index 49267ac..95b7c2b 100644
--- a/otf-robot-test-head/Dockerfile
+++ b/otf-robot-test-head/Dockerfile
@@ -8,7 +8,7 @@
 ENV NAMESPACE=namespace

 ENV APP_NAME=otf-robot-test-head

 ENV APP_VERSION=1.0

-ENV OTF_MONGO_HOSTS=localhost:27017

+ENV OTF_MONGO_HOSTS=localhost:27017/

 ENV OTF_MONGO_DATABASE=otf

 ENV OTF_MONGO_REPLICASET=mongoOTF

 ENV OTF_MONGO_USERNAME=username