基于标签的 AWS Lambda 函数过滤

Question

我正在尝试根据标签过滤 ec2 实例 names.It 无法正常工作。我正在寻找任何带有这些标签的可用 ec2 实例：

    var params = {
      DryRun: false,
      Filters: [
            {
                Name: "tag:Name",
                Values: ["2test-dev-gh"],
            },
            {
                Name: "tag:Enviro",
                Values: ["devInstanceStatus"],
            },
            {
              Key: "tag:Proj",
              Value: ["dev-2test"],
          },
          {
              Key: "tag:testServers",
              Value: ["peekhours"]
          }
          
          ]
    };

当我使用第一个标签并注释掉其他标签时，此过滤器有效，但当我同时尝试所有标签时，它会出现以下错误。


{
  "errorType": "MultipleValidationErrors",
  "errorMessage": "There were 4 validation errors:\n* UnexpectedParameter: Unexpected key 'Key' found in params.Filters[2]\n* UnexpectedParameter: Unexpected key 'Value' found in params.Filters[2]\n* UnexpectedParameter: Unexpected key 'Key' found in params.Filters[3]\n* UnexpectedParameter: Unexpected key 'Value' found in params.Filters[3]",
  "trace": [
    "MultipleValidationErrors: There were 4 validation errors:",
    "* UnexpectedParameter: Unexpected key 'Key' found in params.Filters[2]",
    "* UnexpectedParameter: Unexpected key 'Value' found in params.Filters[2]",
    "* UnexpectedParameter: Unexpected key 'Key' found in params.Filters[3]",
    "* UnexpectedParameter: Unexpected key 'Value' found in params.Filters[3]",
    "    at ParamValidator.validate (/var/runtime/node_modules/aws-sdk/lib/param_validator.js:40:28)",
    "    at Request.VALIDATE_PARAMETERS (/var/runtime/node_modules/aws-sdk/lib/event_listeners.js:126:42)",
    "    at Request.callListeners (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:106:20)",
    "    at callNextListener (/var/runtime/node_modules/aws-sdk/lib/sequential_executor.js:96:12)",
    "    at /var/runtime/node_modules/aws-sdk/lib/event_listeners.js:86:9",
    "    at finish (/var/runtime/node_modules/aws-sdk/lib/config.js:379:7)",
    "    at /var/runtime/node_modules/aws-sdk/lib/config.js:397:9",
    "    at EnvironmentCredentials.get (/var/runtime/node_modules/aws-sdk/lib/credentials.js:127:7)",
    "    at getAsyncCredentials (/var/runtime/node_modules/aws-sdk/lib/config.js:391:24)",
    "    at Config.getCredentials (/var/runtime/node_modules/aws-sdk/lib/config.js:411:9)"
  ]
}

这是我剩下的代码。


exports.handler = async function(event) {
  const promise = new Promise(function(resolve, reject) {
    const ec2 = new AWS.EC2();
    

    ec2.describeInstances(params, function(err, data) {
      if (err) {
        reject(err);
    } else {
        resolve(data);
    }    
}) 
});

    return promise;

}

Answer 1

你的参数应该匹配下面的结构，尝试用这个替换参数。

   var params = {
      DryRun: false,
      Filters: [
            {
                Name: "tag:Name",
                Values: ["2test-dev-gh"],
            },
            {
                Name: "tag:Enviro",
                Values: ["devInstanceStatus"],
            },
            {
                Name: "tag:Proj",
                Values: ["dev-2test"],
            },
            {
                Name: "tag:testServers",
                Values: ["peekhours"]
            }
          
          ]
    };

原因是使用 Key 而不是 Name 和 Value 而不是 Values。

基于标签的 AWS Lambda 函数过滤

AWS Lambda function filtering based on tags

javascript

amazon-web-services

node.js

aws-sdk

aws-lambda