Add interpolation to good test config. Fix regex

config/config.go

@@ -31,7 +31,7 @@ var (
 	patFileSDName = regexp.MustCompile(`^[^*]*(\*[^/]*)?\.(json|yml|yaml|JSON|YML|YAML)$`)
 	patRulePath   = regexp.MustCompile(`^[^*]*(\*[^/]*)?$`)
 	patAuthLine   = regexp.MustCompile(`((?:password|bearer_token|secret_key|client_secret):\s+)(".+"|'.+'|[^\s]+)`)
-	relabelTarget = regexp.MustCompile(`^(?:(?:[a-zA-Z_]|\$\{?[\w]+}?)+\w*)+$`)
+	relabelTarget = regexp.MustCompile(`^(?:(?:[a-zA-Z_]|\$\{?[\w]+\}?)+\w*)+$`)
 )
 
 // Load parses the YAML input s into a Config.

config/config_test.go

@@ -207,6 +207,17 @@ var expectedConf = &Config{
 					Scheme:       DefaultConsulSDConfig.Scheme,
 				},
 			},
+
+			RelabelConfigs: []*RelabelConfig{
+				{
+					SourceLabels: model.LabelNames{"__meta_sd_consul_tags"},
+					Regex:        MustNewRegexp("label:([^=]+)=([^,]+)"),
+					Separator:    ",",
+					TargetLabel:  "${1}",
+					Replacement:  "${2}",
+					Action:       RelabelReplace,
+				},
+			},
 		},
 		{
 			JobName: "service-z",

config/testdata/conf.good.yml

@@ -104,6 +104,13 @@ scrape_configs:
   - server: 'localhost:1234'
     services: ['nginx', 'cache', 'mysql']
 
+  relabel_configs:
+  - source_labels: [__meta_sd_consul_tags]
+    separator: ','
+    regex:         label:([^=]+)=([^,]+)
+    target_label:  ${1}
+    replacement:   ${2}
+
 - job_name: service-z
 
   tls_config: