VOL-612 - rename images to work better with public repository

Change-Id: I9679544987c3a08d0001928cfbc39d710a6c1eae
diff --git a/compose/docker-compose-docutests.yml b/compose/docker-compose-docutests.yml
index 2bfdbaa..de75f81 100644
--- a/compose/docker-compose-docutests.yml
+++ b/compose/docker-compose-docutests.yml
@@ -75,7 +75,7 @@
   # Voltha server instance(s)
   #
   voltha:
-    image: "voltha/voltha:latest"
+    image: "${REGISTRY}${REPOSITORY}voltha-voltha:latest"
     command: [
       "/voltha/voltha/main.py",
       "-v",
@@ -115,7 +115,7 @@
   # ofagent server instance
   #
   ofagent:
-    image: "voltha/ofagent:latest"
+    image: "${REGISTRY}${REPOSITORY}voltha-ofagent:latest"
     command: [
       "/ofagent/ofagent/main.py",
       "-v",
@@ -140,7 +140,7 @@
   # Netconf server instance(s)
   #
   netconf:
-    image: "voltha/netconf:latest"
+    image: "${REGISTRY}${REPOSITORY}voltha-netconf:latest"
     privileged: true
     command: [
       "/netconf/netconf/main.py",