Client configuration files are generated automatically by Cloudera Manager based on the services you install.
Cloudera Manager deploys these configurations automatically at the end of the installation workflow. You can also download the client configuration files to deploy them manually.
If you modify the configuration of your cluster, you may need to redeploy the client configuration files. For example, a service whose status is "Running with outdated configuration" indicates you may need to redeploy those files.
See Deploying Client Configuration Files for information on downloading client configuration files, or redeploying them through Cloudera Manager.