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Attach role to EC2

What is a VPC: your own private network inside one AWS Region, example ThreeTierVpc 10.0.0.0/16.

Attach role to EC2 Putting AKIA keys on the instance is how keys leak into GitHub. Create an EC2 instance profile/role with your S3 read policy; attach to the instance; use the instance metadata credentials automatically via AWS CLI. IAM role trusted by ec2.amazonaws.com → attach policy → Modify IAM role on the instance (or launch with it). On the instance: aws s3 cp s3://lab-bucket/hi.txt - works
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What this card says

Why do we need it?

Putting AKIA keys on the instance is how keys leak into GitHub.

What is it?

Create an EC2 instance profile/role with your S3 read policy; attach to the instance; use the instance metadata credentials automatically via AWS CLI.

instance profile

How to do it

IAM role trusted by ec2.amazonaws.com → attach policy → Modify IAM role on the instance (or launch with it).

Example

On the instance: aws s3 cp s3://lab-bucket/hi.txt - works with no keys configured.

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