AWS Lambda in VPC with RDS and Internet Connection

0 votes

I set up an Aurora Database (provisioned) in a newly created VPC and no public accessibility. As I want to run a Lambda function in the VPC that is able to both, access the RDS instances as well as the Internet, I changed the routing tables of the RDS instances to allow traffic from a NAT gateway which I placed in a public subnet in the same VPC.

For the Lambda function itself, I created a separate private subnet, also just allowing traffic from the NAT gateway in the routing table. I assigned this subnet and VPC to the Lambda function in the Lambda settings. The internet connection works fine with this configuration but I can not access the database. That's why I followed this post (https://serverfault.com/questions/941886/connect-an-aws-lambda-function-triggered-by-api-gateway-to-aurora-serverless-mys) and added the IP CIDR of the Lambda subnet to the Security Group of the RDS instances (called rds-launch-wizard).

Still, the Lambda function is able to interact with the public internet but can not connect to the RDS instances (timeout). I'm running out of ideas, what is wrong here?

Apr 12 in IoT (Internet of Things) by Rahul
• 9,680 points
472 views

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.

Related Questions In IoT (Internet of Things)

0 votes
0 answers
0 votes
1 answer
0 votes
1 answer
0 votes
1 answer

How to work a AWS IOT Lambda with a devices?

Hey KanaguRaj, use this for reference: https://serverless.com/ ...READ MORE

answered Apr 12, 2019 in IoT (Internet of Things) by Vardhan
• 13,200 points
412 views
0 votes
1 answer

how to access AWS S3 from Lambda in VPC

With boto3, the S3 urls are virtual by default, ...READ MORE

answered Sep 28, 2018 in AWS by Priyaj
• 58,100 points
8,449 views
0 votes
1 answer
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP