automate dependency.json version population

This avoids error-prone manual version changes
to configuration files.

Change-Id: I1a991ef9a8eb4cc7dd5fe26d9952286d8b5c0115
Issue-ID: POLICY-766
Signed-off-by: Jorge Hernandez <jh1730@att.com>
diff --git a/docker_build.sh b/docker_build.sh
index 17608df..671b54f 100644
--- a/docker_build.sh
+++ b/docker_build.sh
@@ -25,14 +25,14 @@
 MVN_VERSION=$(cat packages/docker/target/version)
 MVN_MAJMIN_VERSION=$(cut -f 1,2 -d . packages/docker/target/version)
 TIMESTAMP=$(date -u +%Y%m%dT%H%M%S)
-PROXY_ARGS=""
+BUILD_ARGS="--build-arg BUILD_VERSION=${MVN_VERSION}"
 IMAGE=policy-pe
 
 if [ $HTTP_PROXY ]; then
-    PROXY_ARGS+="--build-arg HTTP_PROXY=${HTTP_PROXY}"
+    BUILD_ARGS+=" --build-arg HTTP_PROXY=${HTTP_PROXY}"
 fi
 if [ $HTTPS_PROXY ]; then
-    PROXY_ARGS+=" --build-arg HTTPS_PROXY=${HTTPS_PROXY}"
+    BUILD_ARGS+=" --build-arg HTTPS_PROXY=${HTTPS_PROXY}"
 fi
 
 echo $DOCKER_REPOSITORY
@@ -82,7 +82,7 @@
 
 echo $TAGS
 
-docker build --quiet ${PROXY_ARGS} $TAGS packages/docker/target/$IMAGE
+docker build --quiet ${BUILD_ARGS} $TAGS packages/docker/target/$IMAGE
 
 if [ $? -ne 0 ]
 then