diff --git a/precise/docker-builder/src/usr/local/bin/hook-docker-update b/precise/docker-builder/src/usr/local/bin/hook-docker-update
index f4b7316a..4811fc4b 100755
--- a/precise/docker-builder/src/usr/local/bin/hook-docker-update
+++ b/precise/docker-builder/src/usr/local/bin/hook-docker-update
@@ -12,7 +12,7 @@ KEEP_ONLY_PO="fr en de"
 
 include common
 include pretty
-
+ansi_color no
 usage="$exname COMPONENT MASTER_IMAGE_NAME BRANCH UPDATED_IMAGE_NAME"
 
 COMPONENT_NAME="$1"
@@ -43,12 +43,20 @@ if [ -e "$lock" ]; then
 fi
 touch "$lock"
 
+## This path is on the docker HOST !
+AUFS_APPLY_PATH=${AUFS_APPLY_PATH:-/opt/apps/aufs_apply/bin/aufs_apply}
+
+md5() {
+    find "$@" -type f -exec md5sum {} \; 2>/dev/null | md5sum | cut -f 1 -d " "
+}
+
 
 clean_all() {
    cd /
    mountpoint "$tmpdir_root" 2>/dev/null && umount "$tmpdir_root"
    [ -d "$tmpdir_root" ] && rmdir "$tmpdir_root"
    [ -d "$tmpdir_changes" ] && rm -rf "$tmpdir_changes"
+   rm "$lock"
 }
 
 tmpdir="$DOCKER_UPDATE_PATH"/tmp
@@ -58,15 +66,16 @@ tmpdir_root=$(mktemp -d $tmpdir/$COMPONENT_NAME.root.XXXXXX)
 trap "clean_all" EXIT
 mount -t aufs -o br=$tmpdir_changes:$DOCKER_UPDATE_PATH/$COMPONENT_NAME -o udba=none  none "$tmpdir_root"
 cd "$tmpdir_root"
-set -eux
 ## XXXvlab: We probably would need to:
 ##   - fetch only the module concerned
 ##   - fetch only the ref concerned
+Wrap -d "Update source code" <<EOF
 git fetch origin "$BRANCH"
 git checkout "$BRANCH"
 git reset --hard origin/$BRANCH
 #git reset --hard "origin/$BRANCH"
 git sub update
+EOF
 
 cd / &&
 umount "$tmpdir_root" &&
@@ -77,28 +86,30 @@ if [ "$?" != 0 ]; then
 fi
 cd "$tmpdir_changes"
 
-echo "Cleaning the change layer."
+Wrap -d "Cleaning the change layer." <<EOF
 find  . -name .git -type d -exec  rm -rf {} \; -prune
 
 if [ "$KEEP_ONLY_PO" ]; then
     find_args=""
     for lang in $KEEP_ONLY_PO; do
-        find_args="$find_args -not -name $lang.po"
+        find_args="\$find_args -not -name \$lang.po"
     done
 
-    find /opt/apps -name \*.po -type f $find_args -delete
+    find /opt/apps -name \*.po -type f \$find_args -delete
 fi
-
+EOF
 
 ## XXXvlab: if we produced it we shouldn't have to pull it
 #
 #echo "Pulling $MASTER_IMAGE_NAME"
 #docker pull "$MASTER_IMAGE_NAME" || exit 1
-
-cat <<EOF | docker-update "$MASTER_IMAGE_NAME" -v "$tmpdir_changes:/mnt/changes"
-mkdir -p /srv/app/{root,changes}
-cp -a /mnt/changes /srv/app/changes/0000
-ls /srv/app/changes/0000
+docker tag "$MASTER_IMAGE_NAME" "$UPDATED_IMAGE_NAME"
+Elt "Updating $MASTER_IMAGE_NAME"
+print_info $(cat <<EOF | docker-update "$UPDATED_IMAGE_NAME" -v "$tmpdir_changes:/mnt/changes" -v "$AUFS_APPLY_PATH:/usr/bin/aufs_apply"
+## Applying changes: $(cd "$tmpdir_changes" ; md5 ".")
+/usr/bin/aufs_apply /opt/apps/0k-oe /mnt/changes
 EOF
+)
+Feedback || exit 1
 
-docker push "$UPDATED_IMAGE_NAME"
+Wrap -d "Push new $YELLOW$UPDATED_IMAGE_NAME$NORMAL to registry" docker push "$UPDATED_IMAGE_NAME"