Add metric to parameter list and README

README.md

@@ -203,6 +203,7 @@ Supported optional metrics:
 * `replication_status` - Extracts status of replication for each repository which has replication enabled. Enabling this will add the `status` label to `artifactory_replication_enabled` metric.
 * `federation_status` - Extracts federation metrics. Enabling this will add two new metrics: `artifactory_federation_mirror_lag`, and `artifactory_federation_unavailable_mirror`. Please note that these metrics are only available in Artifactory Enterprise Plus and version 7.18.3 and above.
 * `open_metrics` - Exposes Open Metrics from the JFrog Platform. For more information about Open Metrics, please refer to [JFrog Platform Open Metrics](https://jfrog.com/help/r/jfrog-platform-administration-documentation/open-metrics).
+* `access_federation_validate` - Validates whether trust is established towards a given JFrog Access Federation target server. Requires optional parameter `access-federation-target` to be set to the URL of the target server as well as token-based authentication. For more information, please refer to [JFrog Access Federation Circle of Trust validation](https://jfrog.com/help/r/jfrog-rest-apis/validate-target-for-circle-of-trust).
 
 ### Grafana Dashboard
 

config/config.go

@@ -25,7 +25,7 @@ var (
 	accessFederationTarget = kingpin.Flag("access-federation-target", "URL of Jfrog Access Federation Target server. Only required if optional metric AccessFederationValidate is enabled").Envar("ACCESS_FEDERATION_TARGET").String()
 )
 
-var optionalMetricsList = []string{"artifacts", "replication_status", "federation_status", "open_metrics"}
+var optionalMetricsList = []string{"artifacts", "replication_status", "federation_status", "open_metrics", "access_federation_validate"}
 
 // Credentials represents Username and Password or API Key for
 // Artifactory Authentication