add api for managing credential input sources

awx/main/models/credential/__init__.py

@@ -1339,6 +1339,10 @@ class CredentialInputSource(PrimordialModel):
                 backend_kwargs[field_name] = value
         return backend(**backend_kwargs)
 
+    def get_absolute_url(self, request=None):
+        view_name = 'api:credential_input_source_detail'
+        return reverse(view_name, kwargs={'pk': self.pk}, request=request)
+
 
 for plugin in credential_plugins:
     CredentialType.load_plugin(plugin)