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aliyun_ecs_meta.go
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aliyun_ecs_meta.go
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// Copyright (c) 2018 The Jaeger Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"strings"
"time"
)
const (
aliyunECSRamURL = "http://100.100.100.200/latest/meta-data/ram/security-credentials/"
expirationTimeFormat = "2006-01-02T15:04:05Z"
)
type SecurityTokenResult struct {
AccessKeyId string
AccessKeySecret string
Expiration string
SecurityToken string
Code string
LastUpdated string
}
func getToken() (result []byte, err error) {
client := http.Client{
Timeout: time.Second * 3,
}
var respList *http.Response
respList, err = client.Get(aliyunECSRamURL)
if err != nil {
fmt.Println("UPDATE_STS_ALARM", " get role list error ", err)
return nil, err
}
defer respList.Body.Close()
var body []byte
body, err = ioutil.ReadAll(respList.Body)
if err != nil {
fmt.Println("UPDATE_STS_ALARM", " parse role list error ", err)
return nil, err
}
bodyStr := string(body)
bodyStr = strings.TrimSpace(bodyStr)
roles := strings.Split(bodyStr, "\n")
role := roles[0]
var respGet *http.Response
respGet, err = client.Get(aliyunECSRamURL + role)
if err != nil {
fmt.Println("UPDATE_STS_ALARM", " get token error ", err, " role ", role)
return nil, err
}
defer respGet.Body.Close()
body, err = ioutil.ReadAll(respGet.Body)
if err != nil {
fmt.Println("UPDATE_STS_ALARM", " parse token error ", err, " role ", role)
return nil, err
}
return body, nil
}
func UpdateTokenFunction() (accessKeyID, accessKeySecret, securityToken string, expireTime time.Time, err error) {
var tokenResultBuffer []byte
for tryTime := 0; tryTime < 3; tryTime++ {
tokenResultBuffer, err = getToken()
if err != nil {
continue
}
var tokenResult SecurityTokenResult
err = json.Unmarshal(tokenResultBuffer, &tokenResult)
if err != nil {
fmt.Println("UPDATE_STS_ALARM", " unmarshal token error ", err, " token ", string(tokenResultBuffer))
continue
}
if strings.ToLower(tokenResult.Code) != "success" {
tokenResult.AccessKeySecret = "xxxxx"
tokenResult.SecurityToken = "xxxxx"
fmt.Println("UPDATE_STS_ALARM", " token code not success ", err, " result ", tokenResult)
continue
}
expireTime, err := time.Parse(expirationTimeFormat, tokenResult.Expiration)
if err != nil {
tokenResult.AccessKeySecret = "xxxxx"
tokenResult.SecurityToken = "xxxxx"
fmt.Println("UPDATE_STS_ALARM ", " parse time error ", err, " result ", tokenResult)
continue
}
fmt.Println("get security token success, id ", tokenResult.AccessKeyId, " expire ", tokenResult.Expiration, " last update", tokenResult.LastUpdated)
return tokenResult.AccessKeyId, tokenResult.AccessKeySecret, tokenResult.SecurityToken, expireTime, nil
}
return accessKeyID, accessKeySecret, securityToken, expireTime, err
}