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docs: document OAC for private s3 access #59

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replakcan merged 1 commit into from
Jun 5, 2026
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docs: document OAC for private s3 access #59

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6 changes: 6 additions & 0 deletions infra/README.md
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Expand Up @@ -27,6 +27,12 @@ The bucket is not configured as a public S3 website endpoint. Static files shoul
- Basic error behavior: S3 `403` and `404` responses map to `/404.html`
- Custom domain, Route 53, ACM certificate, advanced cache policies, and deployment automation are out of scope.

## Bucket Policy

The S3 bucket policy grants read access only to the CloudFront service principal for this distribution. The policy allows `s3:GetObject` on objects in the static site bucket and restricts access with an `AWS:SourceArn` condition that matches the CloudFront distribution ARN.

Direct public S3 access should remain blocked. Website traffic should go through CloudFront.

## Usage

Create a local variables file:
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