diff --git a/a1-go/Dockerfile b/a1-go/Dockerfile
index be0eafb..a89ed15 100644
--- a/a1-go/Dockerfile
+++ b/a1-go/Dockerfile
@@ -14,7 +14,7 @@
 
 #-----------------------------------------------------------
 
-FROM nexus3.o-ran-sc.org:10002/o-ran-sc/bldr-ubuntu18-c-go:1.9.0 AS a1-build
+FROM nexus3.o-ran-sc.org:10002/o-ran-sc/bldr-ubuntu20-c-go:1.1.0 AS a1-build
 
 RUN apt-get update -y && apt-get install -y jq
 
@@ -24,6 +24,18 @@
   && \
   update-ca-certificates
 
+#Install RMR
+
+ARG RMR_VER=4.8.3
+ARG RMR_PKG_URL=https://packagecloud.io/o-ran-sc/release/packages/debian/stretch/
+
+RUN wget -nv --content-disposition ${RMR_PKG_URL}/rmr_${RMR_VER}_amd64.deb/download.deb
+RUN wget -nv --content-disposition ${RMR_PKG_URL}/rmr-dev_${RMR_VER}_amd64.deb/download.deb
+RUN    dpkg -i rmr_${RMR_VER}_amd64.deb  \
+        && dpkg -i rmr-dev_${RMR_VER}_amd64.deb \
+        && ldconfig
+
+
 ENV PATH="/usr/local/go/bin:${PATH}"
 
 ENV GOPATH="/go"
@@ -40,6 +52,13 @@
 # build and test
 COPY . /go/src/ws
 
+COPY  ./config/uta_rtg.rt /opt/a1-mediator/
+
+ENV RMR_RTG_SVC=-1
+ENV RMR_LOG_VLEVEL=5
+ENV CFG_FILE=/opt/a1-mediator/config-file.json
+ENV RMR_SEED_RT=/opt/a1-mediator/uta_rtg.rt
+
 # Build the code
 RUN GO111MODULE=on GO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o /go/src/ws/cache/go/cmd/a1 cmd/a1.go
 
@@ -56,9 +75,20 @@
 FROM ubuntu:18.04 as a1-mediator
 
 RUN apt-get update -y \
-    && apt-get install --reinstall -y sudo openssl ca-certificates ca-cacert \
+    && apt-get install --reinstall -y sudo openssl ca-certificates ca-cacert wget\
     && apt-get clean && update-ca-certificates
 
+#Install RMR
+
+ARG RMR_VER=4.8.3
+ARG RMR_PKG_URL=https://packagecloud.io/o-ran-sc/release/packages/debian/stretch/
+
+RUN wget -nv --content-disposition ${RMR_PKG_URL}/rmr_${RMR_VER}_amd64.deb/download.deb
+RUN wget -nv --content-disposition ${RMR_PKG_URL}/rmr-dev_${RMR_VER}_amd64.deb/download.deb
+RUN    dpkg -i rmr_${RMR_VER}_amd64.deb  \
+        && dpkg -i rmr-dev_${RMR_VER}_amd64.deb \
+        && ldconfig
+
 #
 # a1-mediator
 #