Make custom preinstallation available in image

This script could be used by OOM installation to
trigger the installation of a drools application
or other purposes (ie. control loop)

Change-Id: Iafdb413ee85aa341351481584e8c967cc1a3c112
Issue-ID: POLICY-566
Signed-off-by: Jorge Hernandez <jh1730@att.com>
diff --git a/docker_verify.sh b/docker_verify.sh
index 009fce4..6a4d024 100644
--- a/docker_verify.sh
+++ b/docker_verify.sh
@@ -22,14 +22,14 @@
 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-drools
 
 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
@@ -75,7 +75,7 @@
 
 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