[v10.1.x] Auth: lock down Grafana admin sync for SAML (#72839)

Auth: lock down Grafana admin sync for SAML (#72828)

lock down Grafana admin sync for SAML

(cherry picked from commit 3a2538c2ca)

Co-authored-by: Ieva <ieva.vasiljeva@grafana.com>

pkg/setting/setting.go

@@ -515,8 +515,9 @@ type Cfg struct {
 	SecureSocksDSProxy SecureSocksDSProxySettings
 
 	// SAML Auth
-	SAMLAuthEnabled     bool
-	SAMLSkipOrgRoleSync bool
+	SAMLAuthEnabled            bool
+	SAMLSkipOrgRoleSync        bool
+	SAMLRoleValuesGrafanaAdmin string
 
 	// Okta OAuth
 	OktaAuthEnabled     bool
@@ -1261,6 +1262,7 @@ func (cfg *Cfg) readSAMLConfig() {
 	samlSec := cfg.Raw.Section("auth.saml")
 	cfg.SAMLAuthEnabled = samlSec.Key("enabled").MustBool(false)
 	cfg.SAMLSkipOrgRoleSync = samlSec.Key("skip_org_role_sync").MustBool(false)
+	cfg.SAMLRoleValuesGrafanaAdmin = samlSec.Key("role_values_grafana_admin").MustString("")
 }
 
 func (cfg *Cfg) readLDAPConfig() {