如何获取RDS标签？

Question

我正在尝试获取rds实例的标记。请用引号回复

新增:一个rds实例可以有多个标签。我只想从rds实例的标签中导入特定的标签。但是，实例和标签不匹配，因为它异步工作。

var AWS = require('aws-sdk');
var request = require("request");
AWS.config.update({region:'ap-northeast-1'});
var credentials = new AWS.SharedIniFileCredentials({profile: 'test'});
AWS.config.credentials = credentials;
var rds = new AWS.RDS();

rds.describeDBInstances(function(err, data) {
    for(var i=0; i<data.DBInstances.length; i++) {
        var instance = data.DBInstances[i];
        var clusterName = instance.DBClusterIdentifier;
        var instanceName = instance.DBInstanceIdentifier;
        var resourceName = 'arn:aws:rds:ap-northeast-1:231497262134:db:' + instanceName;
        var params = {
            ResourceName: resourceName,
        };

        rds.listTagsForResource(params, function(err, data) {
            var serviceTag = ''
            data.TagList.forEach((tag) => {
                if (tag.Key.toLowerCase() === 'service' && tag.Value.length > 0) {
                    serviceTag = tag.Value;
                }        
            })
            console.log(instanceName, serviceTag)
        })
    }
})

Answer 1

我已经用async和await语法修复了它。谢谢你的评论。

var AWS = require('aws-sdk');
var request = require("request");
AWS.config.update({region:'ap-northeast-1'});
var credentials = new AWS.SharedIniFileCredentials({profile: 'test'});
AWS.config.credentials = credentials;
var rds = new AWS.RDS();


rds.describeDBInstances(async (err, data) => {
    for(var i=0; i<data.DBInstances.length; i++) {
        var instance = data.DBInstances[i];
        var clusterName = instance.DBClusterIdentifier;
        var instanceName = instance.DBInstanceIdentifier;
        var resourceName = 'arn:aws:rds:ap-northeast-1:231497262134:db:' + instanceName;


        let params = {
            ResourceName: resourceName,
        };

        let tags = await rds.listTagsForResource(params).promise();
        var serviceTag = ''
        tags.TagList.forEach((tag) => {
            if (tag.Key.toLowerCase() === 'service' && tag.Value.length > 0) {
                serviceTag = tag.Value;
            }        
        })


        console.log(clusterName + ',' + instanceName + ',' + serviceTag)
    }
})