Fix #261 add variable HTTP_CONTROL_SERVER_PORT

internal/params/server.go

@@ -0,0 +1,13 @@
+package params
+
+import (
+	libparams "github.com/qdm12/golibs/params"
+)
+
+func (r *reader) GetControlServerPort() (port uint16, err error) {
+	n, err := r.envParams.GetEnvIntRange("HTTP_CONTROL_SERVER_PORT", 1, 65535, libparams.Default("8000"))
+	if err != nil {
+		return 0, err
+	}
+	return uint16(n), nil
+}