How to connect AWS Elastic Bean Stalk to DocumentDB-CodePudding

I am trying to connect to a DocumentDB instance from an Elastic Bean Stalk node.js instance.

I was able to connect to the cluster via Cloud9 after adding the security group allowing incoming 27017 connections.

Dec 23 21:39:06 ip-172-31-21-195 web: const timeoutError = new error_1.MongoServerSelectionError(`Server selection timed out after ${serverSelectionTimeoutMS} ms`, this.description);
Dec 23 21:39:06 ip-172-31-21-195 web: ^
Dec 23 21:39:06 ip-172-31-21-195 web: MongoServerSelectionError: Server selection timed out after 30000 ms
Dec 23 21:39:06 ip-172-31-21-195 web: at Timeout._onTimeout (/var/app/current/node_modules/mongodb/lib/sdam/topology.js:285:38)

I tried to create a security group allowing incoming connections on port 27017, and tried to attach that to the EC2 instance and to the DocumentDB cluster.

CodePudding user response：

You must ensure you have provided access both directions. Have you read the details from this page: https://docs.aws.amazon.com/documentdb/latest/developerguide/connect-ec2.html?

Have you tried connecting from the instance itself?

mongo --ssl host docdb-2022-02-08-14-15-11.cluster.region.docdb.amazonaws.com:27107 --sslCAFile rds-combined-ca-bundle.pem --username demoUser --password