add user/group DNs to config

internal/settings/settings.go

@@ -79,6 +79,8 @@ type SettingsYML struct {
 		LDAPGroups                       []string             `yaml:"ldap_groups"`
 		LDAPBindAddress                  string               `yaml:"ldap_bind_address"`
 		LDAPBaseDN                       string               `yaml:"ldap_base_dn"`
+		LDAPUserBaseDN                   string               `yaml:"ldap_user_base_dn"`
+		LDAPGroupBaseDN                  string               `yaml:"ldap_group_base_dn"`
 		LDAPTrustCertFile                string               `yaml:"ldap_trust_cert_file"`
 		LDAPDisableValidation            bool                 `yaml:"ldap_disable_validation"`
 		LDAPInsecure                     bool                 `yaml:"ldap_insecure"`
@@ -284,6 +286,8 @@ func applyDefaultsAndValidateSettings(cfg *SettingsYML) error {
 	s.AuthJWTSigningKey = strings.TrimSpace(s.AuthJWTSigningKey)
 	s.LDAPBindAddress = strings.TrimSpace(s.LDAPBindAddress)
 	s.LDAPBaseDN = strings.TrimSpace(s.LDAPBaseDN)
+	s.LDAPUserBaseDN = strings.TrimSpace(s.LDAPUserBaseDN)
+	s.LDAPGroupBaseDN = strings.TrimSpace(s.LDAPGroupBaseDN)
 	s.LDAPTrustCertFile = strings.TrimSpace(s.LDAPTrustCertFile)
 	s.LDAPGroups = compactTrimmedStrings(s.LDAPGroups)
 
@@ -340,6 +344,12 @@ func applyDefaultsAndValidateSettings(cfg *SettingsYML) error {
 	if s.LDAPBaseDN == "" {
 		return errors.New("settings.ldap_base_dn is required when settings.auth_enabled=true")
 	}
+	if s.LDAPUserBaseDN == "" {
+		s.LDAPUserBaseDN = s.LDAPBaseDN
+	}
+	if s.LDAPGroupBaseDN == "" {
+		s.LDAPGroupBaseDN = s.LDAPBaseDN
+	}
 	if len(s.AuthGroupRoleMappings) == 0 {
 		return errors.New("settings.auth_group_role_mappings must define at least one mapping when settings.auth_enabled=true")
 	}

internal/settings/settings_strict_test.go

@@ -193,6 +193,12 @@ func TestReadYMLSettingsAcceptsValidAuthConfigAndNormalizesMappings(t *testing.T
 	if len(got.LDAPGroups) != 1 || got.LDAPGroups[0] != "cn=vctp-viewers,ou=groups,dc=example,dc=com" {
 		t.Fatalf("expected ldap_groups to be compacted+trimmed, got %#v", got.LDAPGroups)
 	}
+	if got.LDAPUserBaseDN != "dc=example,dc=com" {
+		t.Fatalf("expected default ldap_user_base_dn to fall back to ldap_base_dn, got %q", got.LDAPUserBaseDN)
+	}
+	if got.LDAPGroupBaseDN != "dc=example,dc=com" {
+		t.Fatalf("expected default ldap_group_base_dn to fall back to ldap_base_dn, got %q", got.LDAPGroupBaseDN)
+	}
 	if got.AuthGroupRoleMappings["cn=vctp-admins,ou=groups,dc=example,dc=com"] != authRoleAdmin {
 		t.Fatalf("expected admin mapping to normalize role to %q, got %#v", authRoleAdmin, got.AuthGroupRoleMappings)
 	}