I'm trying to start the kibana service on a CentOS 7 system but the ${HOSTNAME} environment variable isn't being recognized by the service:
server.name: {HOSTNAME} server.host: {HOSTNAME}
When I start the service via systemctl, the service fails and the following lines appears in journalctl:
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Apr 04 13:06:28
Summary
es-master01
kibana[23654]: FATAL CLI ERROR Error: Unknown environment variable referenced in conf
ig : HOSTNAME
Is there an issue with how I am entering the data in the yml file or something I need to do on my system?