adds missing MustStop call to do and http sd (#1404)

lib/promscrape/config.go

@@ -186,6 +186,12 @@ func (sc *ScrapeConfig) mustStop() {
 	for i := range sc.GCESDConfigs {
 		sc.GCESDConfigs[i].MustStop()
 	}
+	for i := range sc.DigitaloceanSDConfigs {
+		sc.DigitaloceanSDConfigs[i].MustStop()
+	}
+	for i := range sc.HTTPSDConfigs {
+		sc.HTTPSDConfigs[i].MustStop()
+	}
 }
 
 // FileSDConfig represents file-based service discovery config.

lib/promscrape/discovery/digitalocean/digitalocean.go

@@ -146,3 +146,8 @@ func addDropletLabels(droplets []droplet, defaultPort int) []map[string]string {
 	}
 	return ms
 }
+
+// MustStop stops further usage for sdc.
+func (sdc *SDConfig) MustStop() {
+	configMap.Delete(sdc)
+}

lib/promscrape/discovery/http/http.go

@@ -53,3 +53,8 @@ func addHTTPTargetLabels(src []httpGroupTarget, sourceURL string) []map[string]s
 	}
 	return ms
 }
+
+// MustStop stops further usage for sdc.
+func (sdc *SDConfig) MustStop() {
+	configMap.Delete(sdc)
+}