how to connect ec2 to s3 without using internet access in cloud formation template

Question

I am learning cloud formation so here i want to create infrastructure where access or transfer data between s3 and ec2 instance with out having a internet access for this data transfers,whether i have to define a scripr for this or need to estabish a vpc. how many ways it will be done.

Answer 1

Use VPC end-points or NAT gateways.

Create VPC gateway endpoint in your private subnet where EC2 instacne is present. Then update the route table. You should be able to reach EC2-> S3 without going via Internet Gateway.