Help with Securing Kibana

[bigdamhero (Patrick)]

They say the only "stupid" questions are the ones un asked. I feel like I should be able to figure this out but maybe I have some fundamental misunderstanding about how this is "supposed" to work.

I have a Test machine set up and it works with the
elasticsearch.username: kibana
elasticsearch.password: 'kibana password'

I thought I could set a system variable in the elasticsearch keystore, something like 'kibana.password' This threw an error in the Java log. Is there something else I need to do to be able to call the username and password in the .yml file. something like
elasticsearch.password: ${kibana.password}

Thanks for any help.

[Bill_McConaghy]

You might find this reply helpful re: env variables and kibana.yml:

How to set custom env variable in kibana.yml

I need to assign server.host and elasticsearch.url our custom env varible this is my env variable MY_IP. I need to assign this variable has a serverhost and elasticsearch.url , so i tried below way kibana.yml user_dir: &docker_ip ${MY_IP} server.host: "%{*docker_ip}" elasticsearch.url: "http://%{*docker_ip}:9200" its not working for me, Suggest me how to set our custom env varible to kibana configuration.