I am working on a AWS lambda in which i want to use DynamoDB and a VPC(Amazon elasticcache for redis). But I was getting time out error when trigger lambda
2 Answers
You either need to create a DyanmoDB VPC Endpoint in the VPC, or add a NAT Gateway to the VPC, and only deploy the Lambda function in subnets that have a route to the NAT Gateway.
Depending on the VPC configuration subnet/Security Group of your lambda,
If your lambda is in a private subnet :
- If you want a secure internal way, you can pass with VPC endpoint
- Else if you want to pass with internet, you must have a NAT Gateway.
Check also the security groups/NACLS....
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