How to use server.conf delivered to a series of UFs with mix of FQDM and short hostnames Linux 8.2.9?

[taldavita]

Good day All!

UF version 8.2.9 on a series of Linux machines.

I've an application containing local/server.conf deploying to a series of Linux machines.

The machines have a mixed configuration of short and fqdn as the hostname. For consistence, want to use the short name.

Each instance environment contains a variable called HOST_EXTERNAL which is the short name.

The documentation states:

* Can contain environment variables.
* After any environment variables are expanded, the server name
  (if not an IPv6 address) can only contain letters, numbers, underscores,
  dots, and dashes. The server name must start with a letter, number, or an
  underscore.

ERROR: serverName must start with a letter, number, or underscore. You have: $HOST_EXTERNAL

ServerName is only set in the apps/app-name/local and system/default/server.conf. 

system/default/server.conf:serverName=$HOSTNAME

app-name/local/server.conf:serverName = $HOST_EXTERNAL

Googling, doesn't produce any examples of using an environment variable other than $HOSTNAME.

What am I missing on attempting to use $HOST_EXTERNAL as serverName in server.conf

Thoughts?

[scelikok · Accepted solution]

Hi @taldavita,

Splunk does not resolve system variables on server.conf other than $HOSTNAME. That is why you should think of a script to get $HOST_EXTERNAL value and update server.conf.