Set IMAGE before using it

weave

@@ -16,6 +16,8 @@ DOCKERHUB_USER=${DOCKERHUB_USER:-weaveworks}
 BASE_EXEC_IMAGE=$DOCKERHUB_USER/weaveexec
 EXEC_IMAGE=$BASE_EXEC_IMAGE:$IMAGE_VERSION
 WEAVEDB_IMAGE=$DOCKERHUB_USER/weavedb
+BASE_IMAGE=$DOCKERHUB_USER/weave
+IMAGE=$BASE_IMAGE:$IMAGE_VERSION
 PROXY_HOST=${PROXY_HOST:-$(echo "${DOCKER_HOST#tcp://}" | cut -s -d: -f1)}
 PROXY_HOST=${PROXY_HOST:-127.0.0.1}
 DOCKER_CLIENT_HOST=${DOCKER_CLIENT_HOST:-$DOCKER_HOST}
@@ -243,8 +245,6 @@ fi
 
 # Default restart policy for router/proxy
 RESTART_POLICY="--restart always"
-BASE_IMAGE=$DOCKERHUB_USER/weave
-IMAGE=$BASE_IMAGE:$IMAGE_VERSION
 CONTAINER_NAME=${WEAVE_CONTAINER_NAME:-weave}
 
 PLUGIN_NAME="$DOCKERHUB_USER/net-plugin"