Make compatible with Grafana 11 when use old config variables
e.g. query service list config: label_values(service_traffic{layer='$layer'}, service)
Grafana 11 will query API /api/v1/label/{label_name}/values by default rather than /api/v1/series(< 11)
[X] If this pull request closes/resolves/fixes an existing issue, replace the issue number. Closes #12280 .
Make compatible with Grafana 11 when use old config variables e.g. query service list config:
label_values(service_traffic{layer='$layer'}, service)
Grafana 11 will query API/api/v1/label/{label_name}/values
by default rather than/api/v1/series
(< 11)CHANGES
log.