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@@ -6,6 +6,9 @@ This role is used for installing the Aggregated Logging stack. It should be run
a single host, it will create any missing certificates and API objects that the current
[logging deployer](https://github.com/openshift/origin-aggregated-logging/tree/master/deployer) does.
+This role requires that the control host it is run on has Java installed as part of keystore
+generation for Elasticsearch (it uses JKS) as well as openssl to sign certificates.
+
As part of the installation, it is recommended that you add the Fluentd node selector label
to the list of persisted [node labels](https://docs.openshift.org/latest/install_config/install/advanced_install.html#configuring-node-host-labels).