#! /bin/sh
-# build the base wheezy image
-./mkimage-debootstrap.sh arvados/debian wheezy http://debian.lcs.mit.edu/debian/
+# build the base wheezy image, if it doesn't already exist
+(docker images | grep '^arvados/debian') || \
+ ./mkimage-debootstrap.sh arvados/debian wheezy http://debian.lcs.mit.edu/debian/
# build the Docker images
docker build -t arvados/base base
docker build -t arvados/api api
docker build -t arvados/docserver docserver
+docker build -t arvados/workbench workbench