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-rw-r--r--doc/source/cli/validator.rst9
1 files changed, 9 insertions, 0 deletions
diff --git a/doc/source/cli/validator.rst b/doc/source/cli/validator.rst
index 637aeeb..b508b71 100644
--- a/doc/source/cli/validator.rst
+++ b/doc/source/cli/validator.rst
@@ -61,3 +61,12 @@ a sample config file ``config-data.yaml`` created by the config generator::
ERROR:root:keystone_authtoken/project_name not found
ERROR:root:keystone_authtoken/password not found
ERROR:root:keystone_authtoken/auth_url not found
+
+Handling Dynamic Groups
+-----------------------
+
+Some services register group names dynamically at runtime based on other
+configuration. This is problematic for the validator because these groups won't
+be present in the sample config data. The ``--exclude-group`` option for the
+validator can be used to ignore such groups and allow the other options in a
+config file to be validated normally.