获取EIP监控流量数据 - 文章 - 开发者社区

问题描述

查询nat公网地址近一周每天进出流量多少
解决方案

AK/SK : https://www.volcengine.com/docs/6291/65568
Namespace：要查询的指标所属的维度。SubNamespace 在不同 Namespace 下的可选值不同，参见云产品监控指标下各产品的SubNamespace。
Period: 查询数据的间隔粒度，支持秒（s）和分钟（m）粒度，例如1440m 为一天
其他参数详情可参考https://www.volcengine.com/docs/6408/105542
import datetime
import hashlib
import hmac
import json
from urllib.parse import quote
import time
import requests

Service = "Volc_Observe"
Version = "2018-01-01"
Region = "cn-beijing"
Host = "open.volcengineapi.com"
### API访问密钥参考https://www.volcengine.com/docs/6291/65568
AK = "填写AK"
SK = "填写SK"
eip_instance='填写实例ID'
Period = "1440m"
Namespace = "VCM_EIP"
#如下为时间段
StartTime="2023-02-01 00:00:00"
EndTime="2023-02-08 00:00:00"



#格式化时间到时间戳
StartTime_stamp=int(time.mktime(time.strptime(StartTime,'%Y-%m-%d %H:%M:%S')))
EndTime_stamp=int(time.mktime(time.strptime(EndTime,'%Y-%m-%d %H:%M:%S')))



def norm_query(params):
    query = ""
    for key in sorted(params.keys()):
        if type(params[key]) == list:
            for k in params[key]:
                query = (
                        query + quote(key, safe="-_.~") + "=" + quote(k, safe="-_.~") + "&"
                )
        else:
            query = (query + quote(key, safe="-_.~") + "=" + quote(params[key], safe="-_.~") + "&")
    query = query[:-1]
    return query.replace("+", "%20")


# 第一步：准备辅助函数。
# sha256 非对称加密
def hmac_sha256(key: bytes, content: str):
    return hmac.new(key, content.encode("utf-8"), hashlib.sha256).digest()


# sha256 hash算法
def hash_sha256(content: str):
    return hashlib.sha256(content.encode("utf-8")).hexdigest()


# 第二步：创建一个 API 请求函数。签名计算的过程包含在该函数中。
def request(method, query, header, ak, sk, action, body):
    # 第三步：创建身份证明。其中的 Service 和 Region 字段是固定的。ak 和 sk 分别代表
    # AccessKeyID 和 SecretAccessKey。同时需要初始化签名结构体。一些签名计算时需要的属性也在这里处理。
    # 初始化身份证明结构体
    credential = {
        "access_key_id": ak,
        "secret_access_key": sk,
        "service": Service,
        "region": Region,

    }
    # 初始化签名结构体
    request_param = {
        "body": json.dumps(body),
        "host": Host,
        "path": "/",
        "method": method,
        "content_type": "application/json",
        "date": datetime.datetime.utcnow(),
        "query": {"Action": action, "Version": Version, **query},
    }
    # 第四步：接下来开始计算签名。在计算签名前，先准备好用于接收签算结果的 signResult 变量，并设置一些参数。
    # 初始化签名结果的结构体
    x_date = request_param["date"].strftime("%Y%m%dT%H%M%SZ")
    short_x_date = x_date[:8]
    x_content_sha256 = hash_sha256(request_param["body"])
    sign_result = {
        "Host": request_param["host"],
        "X-Content-Sha256": x_content_sha256,
        "X-Date": x_date,
        "Content-Type": request_param["content_type"],
    }
    # 第五步：计算 Signature 签名。
    signed_headers_str = ";".join(
        ["content-type", "host", "x-content-sha256", "x-date"]
    )
    canonical_request_str = "\n".join(
        [request_param["method"],
         request_param["path"],
         norm_query(request_param["query"]),
         "\n".join(
             [
                 "content-type:" + request_param["content_type"],
                 "host:" + request_param["host"],
                 "x-content-sha256:" + x_content_sha256,
                 "x-date:" + x_date,
             ]
         ),
         "",
         signed_headers_str,
         x_content_sha256,
         ]
    )
    hashed_canonical_request = hash_sha256(canonical_request_str)
    credential_scope = "/".join([short_x_date, credential["region"], credential["service"], "request"])
    string_to_sign = "\n".join(["HMAC-SHA256", x_date, credential_scope, hashed_canonical_request])
    k_date = hmac_sha256(credential["secret_access_key"].encode("utf-8"), short_x_date)
    k_region = hmac_sha256(k_date, credential["region"])
    k_service = hmac_sha256(k_region, credential["service"])
    k_signing = hmac_sha256(k_service, "request")
    signature = hmac_sha256(k_signing, string_to_sign).hex()
    sign_result["Authorization"] = "HMAC-SHA256 Credential={}, SignedHeaders={}, Signature={}".format(
        credential["access_key_id"] + "/" + credential_scope,
        signed_headers_str,
        signature,
    )
    header = {**header, **sign_result}
    # 第六步：将 Signature 签名写入 HTTP Header 中，并发送 HTTP 请求。
    r = requests.post("http://{}{}".format(request_param["host"], request_param["path"]),
                      headers=header,
                      params=request_param["query"],
                      data=request_param["body"],
                      )
    return r.json()


if __name__ == "__main__":
    now = datetime.datetime.utcnow()
    # 列出带宽数据
    MetricName_list=['InTraffic','OutTraffic']
    for MetricName in MetricName_list:
        request_body = {
                            "MetricName": MetricName,
                            "StartTime":StartTime_stamp,
                            "EndTime": EndTime_stamp,
                            "Period": Period,
                            "Namespace": Namespace,
                            "Instances": [
                            {
                                "Dimensions": [
                                 {
                                    "Name": "ResourceID",
                                    "Value": eip_instance
                                }
                                            ]
                            }
                                        ],
                            "SubNamespace": "Instance",
                            "Region": "cn-beijing"
                }

        response_body = request("POST", {}, {}, AK, SK, "GetMetricData", request_body)

        resp = response_body.get('Result')['Data']['MetricDataResults'][0]['DataPoints']
        for item in resp :
            time_stamps=item['Timestamp']
            time_str = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(time_stamps))
            val = item['Value']
            print(time_str ,' ',val,'Bytes')
        print('\n')