CORD-313 add a forgotten dependency

Change-Id: I776fa13930803270a47b213eb8e295b299b8c6e1
diff --git a/config-generator/Dockerfile b/config-generator/Dockerfile
index d60f34f..bd38703 100644
--- a/config-generator/Dockerfile
+++ b/config-generator/Dockerfile
@@ -31,10 +31,7 @@
 RUN go install gerrit.opencord.org/maas/config-generator
 
 # copy templates to the image
-COPY hosts.tpl /go/
-COPY links.tpl /go/
-COPY ports.tpl /go/
-COPY devices.tpl /go/
+COPY netconfig.tpl /go/
 
 EXPOSE 1337