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-rw-r--r--playbooks/openstack/advanced-configuration.md4
1 files changed, 4 insertions, 0 deletions
diff --git a/playbooks/openstack/advanced-configuration.md b/playbooks/openstack/advanced-configuration.md
index 788a74f45..6fbfca3dc 100644
--- a/playbooks/openstack/advanced-configuration.md
+++ b/playbooks/openstack/advanced-configuration.md
@@ -301,6 +301,10 @@ The commands should not use JSON escaped characters: `> < & '`. So the command
`['foo', '>', '"bar"', '<', "'baz'", "&"]` is a bad one, while
`['echo', '"${HOME}"']` is OK.
+**Note** To protect Nova servers from recreating when the user-data changes via
+`openshift_openstack_cloud_init_runcmd`, the
+`user_data_update_policy` parameter configured to `IGNORE` for Heat resources.
+
The `openshift_openstack_nodes_to_remove` allows you to specify the numerical indexes
of App nodes that should be removed; for example, ['0', '2'],