如何从 aws lambda 连接私有 RDS

Question

I am making JDBC connection to access AWS RDS from Lambda function, RDS accessibility is private, which allows to access to my EC2 public IP, so i am able to connect in EC2 instance but when my lambda function is calling in every 5 minutes, its giving following error

com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 

RDS in us-east region,

EC2 and lambda in us-west region

JDBC Code:

            String username = prop.getProperty("dbUser"); 
            String password = prop.getProperty("dbPassword");
            String driver = prop.getProperty("dbDriver");
            String url = prop.getProperty("dbUrl");  // RDS endpoint
            String jdbcUrl = url + "?user=" + username + "&password=" + password;
            logger.info("Creating JDBC MySQL Connection "+driver);
            Class.forName(driver);
             connection = DriverManager.getConnection(jdbcUrl);

Answer 1

您需要在 VPC 内部署您的 Lambda，因为您的 RDS 不是公开可用的。