[appendix] [[common-application-properties]] = Common application properties include::partial$_attributes.adoc[] Various properties can be specified inside your `application.properties` file, inside your `application.yml` file, or as command line switches. This appendix provides a list of common {project-full-name} properties and references to the underlying classes that consume them. NOTE: Property contributions can come from additional jar files on your classpath, so you should not consider this an exhaustive list. Also, you can define your own properties. [[observability]] == Observability metadata include::partial$_metrics.adoc[] include::partial$_spans.adoc[]