Add multiple paths to disk space health check

[cyterdan]

Current configuration for disk space monitoring looks like this:

management.health.diskspace.path=/var/log/tomcat8

I have a requirement to monitor multiple paths.
If you think that's useful, I can take this on and create a PR.

Thanks

[philwebb]

Thanks for the suggestion @cyterdan, I think it would be a worthwhile enhancement. It should be possible to update DiskSpaceHealthIndicator to accept a collection of path/threshold pairs. If you're interested in creating a PR, this would be most welcome.

[eddumelendez]

Hi, I would like to work on this with a friend @manduinca. Can we take it?

I think we should keep backward compatibility, right?

WDYT about having the following properties?

management.health.diskspace.<alias>.path=
management.health.diskspace.<alias>.threshold=

[snicoll]

@eddumelendez thanks for the offer but the issue is already assigned. See #18413

[eddumelendez]

thanks @snicoll

[wilkinsona]

As described in #27306 (comment), we have decided that we do not want to add support for configuring the disk space health indicator with multiple paths.