Fix #261 add variable HTTP_CONTROL_SERVER_PORT

internal/settings/server.go

@@ -0,0 +1,30 @@
+package settings
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/qdm12/gluetun/internal/params"
+)
+
+// ControlServer contains settings to customize the control server operation
+type ControlServer struct {
+	Port uint16
+}
+
+func (c *ControlServer) String() string {
+	settingsList := []string{
+		"HTTP Control server:",
+		fmt.Sprintf("Listening port: %d", c.Port),
+	}
+	return strings.Join(settingsList, "\n |--")
+}
+
+// GetControlServerSettings obtains the HTTP control server settings from environment variables using the params package.
+func GetControlServerSettings(paramsReader params.Reader) (settings ControlServer, err error) {
+	settings.Port, err = paramsReader.GetControlServerPort()
+	if err != nil {
+		return settings, err
+	}
+	return settings, nil
+}

internal/settings/settings.go

@@ -26,6 +26,7 @@ type Settings struct {
 	PublicIPPeriod     time.Duration
 	UpdaterPeriod      time.Duration
 	VersionInformation bool
+	ControlServer      ControlServer
 }
 
 func (s *Settings) String() string {
@@ -45,6 +46,7 @@ func (s *Settings) String() string {
 		s.Firewall.String(),
 		s.TinyProxy.String(),
 		s.ShadowSocks.String(),
+		s.ControlServer.String(),
 		"Public IP check period: " + s.PublicIPPeriod.String(), // TODO print disabled if 0
 		"Version information: " + versionInformation,
 		updaterLine,
@@ -95,5 +97,9 @@ func GetAllSettings(paramsReader params.Reader) (settings Settings, err error) {
 	if err != nil {
 		return settings, err
 	}
+	settings.ControlServer, err = GetControlServerSettings(paramsReader)
+	if err != nil {
+		return settings, err
+	}
 	return settings, nil
 }