[Libbeat] Log debug message if the Kibana dashboard can not be import…

…ed from the archive (#12211)

There is a predefined combination of directory structure and setup.dashboards.beat property that has to be defined to successfully import dashboards to the Kibana.

CHANGELOG.next.asciidoc

@@ -150,6 +150,7 @@ https://github.com/elastic/beats/compare/v7.0.0-alpha2...master[Check the HEAD d
 - Server-side TLS config now validates certificate and key are both specified {pull}19584[19584]
 - Fix seccomp policy for calls to `chmod` and `chown`. {pull}20054[20054]
 - Output errors when Kibana index pattern setup fails. {pull}20121[20121]
+- Log debug message if the Kibana dashboard can not be imported from the archive because of the invalid archive directory structure {issue}12211[12211], {pull}13387[13387]
 
 *Auditbeat*
 

libbeat/dashboards/importer.go

@@ -246,6 +246,8 @@ func (imp Importer) ImportArchive() error {
 			if err != nil {
 				return err
 			}
+		} else {
+			imp.loader.statusMsg("Skipping import of %s directory. Beat name: %s, base dir name: %s.", dir, imp.cfg.Beat, filepath.Base(dir))
 		}
 	}
 	return nil