批量检索AWS ssm参数

Question

如何一次从AWS Systems Manager（参数存储）中批量获取参数（或多个参数）？使用aws-sdk，以下是我编写的从参数存储中检索SSM参数的Node.js代码：

      const ssm = new (require('aws-sdk/clients/ssm'))()

      const getSSMKey = async params => {
          const {Parameter: {Value: APIKey}} = await ssm.getParameter(params).promise()
          return APIKey
    }

    const [param1, param2, param3] = await Promise.all([
      getSSMKey({ Name: '/data/param/PARAM1', WithDecryption: true }),
      getSSMKey({ Name: '/data/param/PARAM2', WithDecryption: true }),
      getSSMKey({ Name: '/data/param/PARAM3', WithDecryption: true })
    ])
    console.log(param1, param2, param3)

但是使用此代码，我正在发送3个请求以获取3个参数，这在大量参数的情况下效率低下。有什么方法可以在一个请求中检索多个参数。如果ssm.getParameters（）是执行此操作的方法，请举一个示例（特别是该方法的参数）。我尝试过，但是什么也没收到。

Answer 1

最后它对我有用。以下是代码：

        const ssmConfig = async () => {
          const data = await ssm.getParameters({ Names: ['/data/param/PARAM1', '/data/param/PARAM2', '/bronto/rest//data/param/PARAM3'],
WithDecryption: true }).promise()
          const config = {}
          for (const i of data.Parameters) {
            if (i.Name === '/data/param/PARAM1') {
              config.param1 = i.Value
            }
            if (i.Name === '/data/param/PARAM2') {
              config.rest.clientId param2 = i.Value
            }
            if (i.Name === '/data/param/PARAM3') {
              config.param3 = i.Value
            }
          }
          return config
        }

Answer 2

根据AWS文档，GetParameter获取一个参数GetParameters的值，而获取多个参数的值。

它们的用法也非常相似。当使用GetParameters获得多个值，通过在多个名字，作为一个列表Names，而不是通过一个单一的名称作为字符串Name。

代码示例，用于在“ us-west-1”区域中获取名为“ foo”和“ bar”的参数：

const AWS = require('aws-sdk');
AWS.config.update({ region: "us-west-1" });

const SSM = require('aws-sdk/clients/ssm');
const ssm = new SSM()
const query = {
    "Names": ["foo", "bar"],
    "WithDecryption": true
}
let param = ssm.getParameters(query, (err, data) => {
    console.log('error = %o', err);
    console.log('raw data = %o', data);
})

Answer 3

这就是我从特定路径检索所有参数的方法。

**your SSM function  client :**
'use strict';
const SSM = require('aws-sdk/clients/ssm');
let ssmclient;
module.exports.init = () => {
    const region = process.env.REGION === undefined ? 'us-east-1' : process.env.REGION ;
    ssmclient = new SSM({region: region});
}
module.exports.getParameters = async (path) => {
    try {
        let params = {
            Path: path,
            WithDecryption: true
        };
        let allParameters = [];
        let data =  await ssmclient.getParametersByPath(params).promise();
        allParameters.push.apply(allParameters, data.Parameters);
        while(data.NextToken) {
            params.NextToken = data.NextToken;
            data =  await ssmclient.getParametersByPath(params).promise();
            allParameters.push.apply(allParameters, data.Parameters);
        }
        return allParameters;
    } catch (err) {
        return Promise.reject(err);
    }
}
calling this client:

const ssm = require("yourssmclinet");
ssm.init();
// you call only once to retrieve everything which falls under /data/param
const parameters = await getParameters("/data/param");
//from here you can fetch parameters['what ever needed'].