从 AWS Lambda 到 EC2 实例的 Websocket/TCP 连接？

Question

Is it possible to initiate a temporary (10 mins) Websocket/TCP connection to a server on EC2 instance from AWS Lambda? So that they can communicate?

Answer 1

That's possible under a few conditions:

• your Lambda Timeout is greater than 10 minutes
• your Lambda Function is deployed into a VPC (only if the EC2 instance isn't accessible from the Inte.net)
• The security groups on the instance and the Lambda function allow connectivity
• The connection is initiated from your Lambda function (as Lambda execution contexts can't accept inbound connections)