Add configuration item api->listen. (#3317)

* add api.listen configuration item

* add unit tests

* typo

---------

Co-authored-by: nobody <nobody@nowhere.mars>

infra/conf/api.go

@@ -14,6 +14,7 @@ import (
 
 type APIConfig struct {
 	Tag      string   `json:"tag"`
+	Listen   string   `json:"listen"`
 	Services []string `json:"services"`
 }
 
@@ -42,6 +43,7 @@ func (c *APIConfig) Build() (*commander.Config, error) {
 
 	return &commander.Config{
 		Tag:     c.Tag,
+		Listen:  c.Listen,
 		Service: services,
 	}, nil
 }