Add logrotate config

[vrillusions]

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This adds a logrotate config I've been using for a while now. Wasn't sure where to place the file as it seemed most setup-type things are just in base of repo. Let me know if it should be somewhere else / feel free to move it yourself

These are the file sizes I get with the weekly rotation with 15 devices

# ls -lh /opt/librenms/logs
total 6.0M
-rw-rw-r-- 1 librenms www-data  981 Jan 19 00:15 daily.log
-rw-rw-r-- 1 librenms www-data 1.4K Jan 15 00:15 daily.log.1
-rw-rw-r-- 1 librenms www-data  924 Jan  9 00:15 daily.log.2.gz
-rw-rw-r-- 1 librenms www-data  901 Jan  1 00:15 daily.log.3.gz
-rw-rw-r-- 1 librenms www-data  862 Dec 25 00:15 daily.log.4.gz
-rw-rw-r-- 1 librenms www-data  914 Dec 19 00:15 daily.log.5.gz
-rw-rw-r-- 1 librenms www-data  887 Dec 11 06:53 daily.log.6.gz
-rw-rw-r-- 1 librenms www-data 2.0M Jan 19 23:25 librenms.log
-rw-rw-r-- 1 librenms www-data 2.6M Jan 15 06:35 librenms.log.1
-rw-rw-r-- 1 librenms www-data 303K Jan  9 06:50 librenms.log.2.gz
-rw-rw-r-- 1 librenms www-data 266K Jan  1 06:51 librenms.log.3.gz
-rw-rw-r-- 1 librenms www-data 230K Dec 25 06:42 librenms.log.4.gz
-rw-rw-r-- 1 librenms www-data 305K Dec 19 06:56 librenms.log.5.gz
-rw-rw-r-- 1 librenms www-data 266K Dec 11 06:53 librenms.log.6.gz```

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[adaniels21487]

Excellent, I have been meaning to get around to this for a while as well.
I would like to see this add instructions to the setup docs as well.

[laf]

I'd say this belongs in either scripts or misc.

Would you be able to update the install docs to use this by default?

[murrant]

I vote for the misc directory, and yes, updating the docs would be great.

[vrillusions]

👍 I'll update docs and move it to misc. Should get that done tonight or at the very least this weekend.

[laf]

Awesome :)

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