diff --git a/roles/nodejs/defaults/main.yml b/roles/nodejs/defaults/main.yml
new file mode 100644
index 000000000..17e7012f9
--- /dev/null
+++ b/roles/nodejs/defaults/main.yml
@@ -0,0 +1,15 @@
+# 2020-01-23: nodejs_install is completely ignored as Node.js is installed on
+# demand as a dependency -- by Node-RED, Sugarizer and/or Internet Archive --
+# but for now we set fake value 'nodejs_install: True' for
+# 'nodejs_installed is defined' tests e.g. in 0-init/tasks/validate_vars.yml
+
+# nodejs_install: True
+# nodejs_enabled: False
+
+# Node.js version used by roles/nodejs/tasks/main.yml for 3 roles:
+# nodered (Node-RED), pbx (Asterix, FreePBX) & sugarizer (Sugarizer)
+
+# nodejs_version: 12.x    # was 8.x until 2019-02-02, was 10.x until 2019-12-21
+
+# All above are set in: github.com/iiab/iiab/blob/master/vars/default_vars.yml
+# If nec, change them by editing /etc/iiab/local_vars.yml prior to installing!