Add missing translation for ffdns

pkg/ffdns/ffdns_test.go

@@ -72,6 +72,19 @@ func TestNewResolverWithConfig(t *testing.T) {
 	assert.NotNil(t, r.Dial)
 }
 
+func TestConfigKeysDocumented(t *testing.T) {
+	// Initialize the DNS config as a subsection (as ffresty/wsclient do), then generate the
+	// config markdown for every known key. This panics if any key is missing a translation,
+	// guarding against the "Translation for config key '...dns.servers' was not found" regression.
+	config.RootConfigReset()
+	InitConfig(config.RootSection("backend").SubSection("dns"))
+
+	assert.NotPanics(t, func() {
+		_, err := config.GenerateConfigMarkdown(context.Background(), "", config.GetKnownKeys())
+		assert.NoError(t, err)
+	})
+}
+
 func TestNewResolverFromConfigSection(t *testing.T) {
 	resetConf()
 	utConf.Set(DNSServers, []string{"8.8.8.8", "1.1.1.1:53"})

pkg/i18n/en_base_config_descriptions.go

@@ -90,7 +90,8 @@ var (
 	ConfigGlobalMaxIdleConns              = ffc("config.global.maxIdleConns", "The max number of idle connections to hold pooled", IntType)
 	ConfigGlobalMaxConnsPerHost           = ffc("config.global.maxConnsPerHost", "The max number of connections, per unique hostname. Zero means no limit", IntType)
 	ConfigGlobalMaxIdleConnsPerHost       = ffc("config.global.maxIdleConnsPerHost", "The max number of idle connections, per unique hostname. Zero means net/http uses the default of only 2.", IntType)
-	ConfigGlobalDNSServers                = ffc("config.global.dnsServers", "An optional list of DNS server addresses (host or host:port, port defaults to 53) to use instead of the system resolver. Setting this forces use of Go's built-in DNS resolver.", ArrayStringType)
+	ConfigGlobalDNSServers                = ffc("config.global.dns.servers", "An optional list of DNS server addresses (host or host:port, port defaults to 53) to use instead of the system resolver. Setting this forces use of Go's built-in DNS resolver.", ArrayStringType)
+	ConfigGlobalDNSTimeout                = ffc("config.global.dns.timeout", "The dial timeout when contacting a configured DNS server", TimeDurationType)
 	ConfigGlobalMethod                    = ffc("config.global.method", "The HTTP method to use when making requests to the Address Resolver", StringType)
 	ConfigGlobalAuthType                  = ffc("config.global.auth.type", "The auth plugin to use for server side authentication of requests", StringType)
 	ConfigGlobalPassthroughHeadersEnabled = ffc("config.global.passthroughHeadersEnabled", "Enable passing through the set of allowed HTTP request headers", BooleanType)