First commit, livebox without installer entry

roles/edulive/templates/livebuilder.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/bash
+#
+# build live images and copy kernel, initramfs and squashfs
+#
+
+set -eu
+
+BUILDD="{{ build_dir }}"
+
+run_build(){
+    local DEST="/var/lib/tftpboot/d-i/n-live/$1/live/"
+    cd "$BUILDD/$1"
+    [[ -d "$DEST" ]] || mkdir -vp "$DEST"
+
+    lb clean && lb config && lb build
+
+    for FILE in vmlinuz initrd.img filesystem.squashfs ; do
+        ln -vf "$BUILDD/$1/binary/live/$FILE" "$DEST"
+    done
+}
+
+## main:
+
+if ! auto-apt-proxy | grep -q 'http://127.0.0.1:3142' ; then
+    echo "Cannot find the local apt proxy needed to build live images."
+    exit 1
+fi
+
+for IMG in {{ build_images|join(' ') }} ; do
+    echo "=========== Building image $IMG ==========="
+    run_build $IMG
+done