Amazon web services 自定义资源的Lambda函数存在问题：没有名为cfnresponse的模块

我正在尝试使用Lambda函数创建CloudFormation自定义资源。这是我的职责：

    "SubnetToVpcFunction": {
        "Type": "AWS::Lambda::Function",
        "Properties": {
            "Code": {
                "ZipFile" : { "Fn::Join" : ["\n", [
                    "import cfnresponse",
                    "import json, boto3 ",
                    "def handler(event, context): ",
                    "   ec2 = boto3.resource('ec2') ",
                    "   subnet = ec2.Subnet(event['ResourceProperties']['Subnet']) ",
                    "   vpc_id = subnet.vpc_id ",
                    "   responsedata = { 'VPCID' : vpc_id } ",
                    "   cfnresponse.send(event, context, cfnresponse.SUCCESS, responseData, \"CustomResourcePhysicalID\") "
                ] ] }
            },
            "Handler": "index.handler",
            "Runtime": "python2.7",
            "Timeout": "30",
            "Role": { "Fn::Join" : [ "", [ "arn:aws:iam::", { "Ref" : "AWS::AccountId" }, ":role/", { "Fn::FindInMap" : [ "AccountMapping", { "Ref" : "AWS::AccountId" }, "Role" ] } ] ] },
        }
    }

Unable to import module 'index': No module named cfnresponse

当我尝试将此函数用于另一个模板中的自定义资源时，自定义资源无法稳定，我在该函数的CloudWatch日志中看到此错误：

    "SubnetToVpcFunction": {
        "Type": "AWS::Lambda::Function",
        "Properties": {
            "Code": {
                "ZipFile" : { "Fn::Join" : ["\n", [
                    "import cfnresponse",
                    "import json, boto3 ",
                    "def handler(event, context): ",
                    "   ec2 = boto3.resource('ec2') ",
                    "   subnet = ec2.Subnet(event['ResourceProperties']['Subnet']) ",
                    "   vpc_id = subnet.vpc_id ",
                    "   responsedata = { 'VPCID' : vpc_id } ",
                    "   cfnresponse.send(event, context, cfnresponse.SUCCESS, responseData, \"CustomResourcePhysicalID\") "
                ] ] }
            },
            "Handler": "index.handler",
            "Runtime": "python2.7",
            "Timeout": "30",
            "Role": { "Fn::Join" : [ "", [ "arn:aws:iam::", { "Ref" : "AWS::AccountId" }, ":role/", { "Fn::FindInMap" : [ "AccountMapping", { "Ref" : "AWS::AccountId" }, "Role" ] } ] ] },
        }
    }

Unable to import module 'index': No module named cfnresponse

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根据AWS文档，当使用

ZipFile

属性内联指定函数代码时，可以在Lambda函数中导入

cfnresponse

python包。那么为什么它不能加载这个包呢？

我确实使用terraform部署了lambda函数，并且必须自己嵌入模块。使用pip和virtualenv或使用您提到的AWS文档附带的文件从中获取

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文档建议，如果您使用cloudformation和内联代码（作为ZipFile），但我没有进行测试。

好吧，如果我必须自己嵌入模块，那么我就不能在CFT中定义内联函数（因为我必须手动构建包含依赖项的函数包）我从定义函数内联中得到的主要好处是不必担心构建/部署函数包。谢谢你的评论！答案如下：