Add example data for system, domains and resources

app-config.yaml

@@ -127,7 +127,16 @@ integrations:
 
 catalog:
   rules:
-    - allow: [Component, API, Resource, Group, User, Template, System, Domain, Location]
+    - allow:
+        - Component
+        - API
+        - Resource
+        - Group
+        - User
+        - Template
+        - System
+        - Domain
+        - Location
 
   processors:
     githubOrg:
@@ -184,6 +193,15 @@ catalog:
     # Backstage example APIs
     - type: url
       target: https://github.com/backstage/backstage/blob/master/packages/catalog-model/examples/all-apis.yaml
+    # Backstage example resources
+    - type: url
+      target: https://github.com/backstage/backstage/blob/master/packages/catalog-model/examples/all-resources.yaml
+    # Backstage example systems
+    - type: url
+      target: https://github.com/backstage/backstage/blob/master/packages/catalog-model/examples/all-systems.yaml
+    # Backstage example domains
+    - type: url
+      target: https://github.com/backstage/backstage/blob/master/packages/catalog-model/examples/all-domains.yaml
     # Backstage example templates
     - type: url
       target: https://github.com/backstage/backstage/blob/master/plugins/scaffolder-backend/sample-templates/all-templates.yaml