diff --git a/data/schemas/netinstall-schema.yaml b/data/schemas/netinstall-schema.yaml
new file mode 100644
index 0000000..b93a398
--- /dev/null
+++ b/data/schemas/netinstall-schema.yaml
@@ -0,0 +1,5 @@
+%YAML 1.2
+---
+type: map
+mapping:
+    groupsUrl: { type: str, required: yes }