Allowlist tieredstorage metrics in jmx exporter (#106)

* Allowlist tieredstorage metrics in jmx exporter

* Allowlist tieredstorage metrics in jmx exporter

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Co-authored-by: Eduard Agarici <[email protected]>

Author: eduardagarici

api/assets/kafka/jmx-exporter.yml

@@ -268,3 +268,5 @@ rules:
   # Export all other java.{lang,nio}* beans using default format
   - pattern: java.lang.+
   - pattern: java.nio.+
+  - pattern: 'aiven\.kafka\.server\.tieredstorage(?:\.[^<]+)?<type=[^>]+><.*>'
+    cache: true