bce-iot-10546: Set BAETYL_HOST_SN (baetyl#392)

Author: zxxf18

master/config.go

@@ -2,6 +2,7 @@ package master
 
 import (
 	"fmt"
+	"io/ioutil"
 	"os"
 	"path/filepath"
 	"runtime"
@@ -55,6 +56,16 @@ func (c *Config) Validate() error {
 		utils.SetEnv(baetyl.EnvMasterAPIKey, addr)
 	}
 
+	if c.SNFile != "" {
+		snByte, err := ioutil.ReadFile(c.SNFile)
+		if err != nil {
+			fmt.Printf("failed to load SN file: %s", err.Error())
+		} else {
+			sn := strings.TrimSpace(string(snByte))
+			utils.SetEnv(baetyl.EnvKeyHostSN, sn)
+		}
+	}
+
 	utils.SetEnv(baetyl.EnvKeyMasterAPIVersion, "v1")
 	utils.SetEnv(baetyl.EnvKeyHostOS, runtime.GOOS)
 	utils.SetEnv(baetyl.EnvKeyServiceMode, c.Mode)

master/config_linux.go

@@ -16,6 +16,7 @@ type Config struct {
 	Logger logger.LogInfo  `yaml:"logger" json:"logger" default:"{\"path\":\"var/log/baetyl/baetyl.log\"}"`
 	OTALog logger.LogInfo  `yaml:"otalog" json:"otalog" default:"{\"path\":\"var/db/baetyl/ota.log\",\"format\":\"json\"}"`
 	Grace  time.Duration   `yaml:"grace" json:"grace" default:"30s"`
+	SNFile string          `yaml:"snfile" json:"snfile"`
 
 	// cache config file path
 	File string

master/config_others.go

@@ -16,6 +16,7 @@ type Config struct {
 	Logger logger.LogInfo  `yaml:"logger" json:"logger" default:"{\"path\":\"var/log/baetyl/baetyl.log\"}"`
 	OTALog logger.LogInfo  `yaml:"otalog" json:"otalog" default:"{\"path\":\"var/db/baetyl/ota.log\",\"format\":\"json\"}"`
 	Grace  time.Duration   `yaml:"grace" json:"grace" default:"30s"`
+	SNFile string          `yaml:"snfile" json:"snfile"`
 
 	// cache config file path
 	File string

sdk/baetyl-go/context.go

@@ -60,6 +60,7 @@ const (
 	// new envs
 	EnvKeyHostID                 = "BAETYL_HOST_ID"
 	EnvKeyHostOS                 = "BAETYL_HOST_OS"
+	EnvKeyHostSN                 = "BAETYL_HOST_SN"
 	EnvKeyMasterAPISocket        = "BAETYL_MASTER_API_SOCKET"
 	EnvKeyMasterAPIAddress       = "BAETYL_MASTER_API_ADDRESS"
 	EnvKeyMasterAPIVersion       = "BAETYL_MASTER_API_VERSION"