[fix] Empty label is not allowed in Prometheus (#2349)

pingcap · Jan 11, 2024 · a614582 · a614582
1 parent 77e0b53
commit a614582
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/embed/templates/config/prometheus.yml.tpl b/embed/templates/config/prometheus.yml.tpl
@@ -376,8 +376,10 @@ scrape_configs:
         target_label: __param_target
       - source_labels: [__param_target]
         target_label: instance
+      {{- if .BlackboxAddr}}
       - target_label: __address__
         replacement: '{{.BlackboxAddr}}'
+      {{- end}}
 {{- range $addr := .BlackboxExporterAddrs}}
   - job_name: "blackbox_exporter_{{$addr}}_icmp"
     scrape_interval: 6s