Parallelise the copying of imaages etc

test/setup.sh

@@ -10,7 +10,9 @@ cd "$(dirname "${BASH_SOURCE[0]}")"
 
 echo "Copying weave images, scripts, and certificates to hosts, and"
 echo "  prefetch test images"
-for HOST in $HOSTS; do
+
+setup_host() {
+    HOST=$1
     docker_on $HOST load -i ../weave.tar
     DANGLING_IMAGES="$(docker_on $HOST images -q -f dangling=true)"
     [ -n "$DANGLING_IMAGES" ] && docker_on $HOST rmi $DANGLING_IMAGES 1>/dev/null 2>&1 || true
@@ -21,4 +23,10 @@ for HOST in $HOSTS; do
     for IMG in $TEST_IMAGES ; do
         docker_on $HOST inspect --format=" " $IMG >/dev/null 2>&1 || docker_on $HOST pull $IMG
     done
+}
+
+for HOST in $HOSTS; do
+    setup_host $HOST &
 done
+
+wait