[JENKINS-58282] Ability to configure default folder health metrics

[Dohbedoh]

See JENKINS-58282. Large instances are awfully impacted by performances issues related to health metrics. As a workaround, the health metrics can be removed but every time a new folder is created, it has all folder health metrics configured and there is no way around this. This feature is meant to help administrator to control this.

Proposed changelog entries

• Ability to configure default folder health metrics

Submitter checklist

• JIRA issue is well described
• Changelog entry appropriate for the audience affected by the change (users or developer, depending on the change).
  * Use the Internal: prefix if the change has no user-visible impact (API, test frameworks, etc.)
• Appropriate autotests or explanation to why this change has no tests

@fcojfernandez

[fcojfernandez]

@Dohbedoh the CI is failing. Did you have the chance to investigate the cause?

[Dohbedoh]

I see heaps of java.lang.NoClassDefFoundError: Could not initialize class org.jvnet.hudson.test.TestPluginManager and a java.nio.file.FileSystemException: /tmp/jenkins5656330164204821983: No space left on device. Trying to kick off the build again.

[fcojfernandez]

Code LGTM. I'll try to test it and in case it's ok, I will merge it

[Dohbedoh]

@fcojfernandez Maybe put this in WIP, I just want to add a test to make sure this is JCasC compatible.

[fcojfernandez]

@Dohbedoh great! Some of us are working on adding JCasC compatibility. Here you have some examples:

• ant-plugin
• git-plugin
• antisamy-markup-formatter-plugin

[fcojfernandez]

Let's commit the update to configuration-as-code-1.30 and see if the CI passes

[fcojfernandez]

@Dohbedoh I cannot commit my suggestions, please go ahead and I will merge the PR

[Dohbedoh]

@fcojfernandez done. Thanks!

[darxriggs]

@Dohbedoh please have a look at the issue JENKINS-60393. It was introduced by this change.