VPC Lambdaからs3へアクセスする - Qiita原因 ドキュメントに書いてあった。 When you add VPC configuration to a Lambda function, it can only access resources in that VPC. If a Lambda function needs to access both VPC resources and the public Internet, the VPC needs to have a Network Address Translation (NAT) instance inside the VPC. AWS Lambda uses the VPC information you provide to set up ENIs that allow your Lambda function to access VPC resources. The
