Which solution will meet this requirement with the LEAST operational effort?
Create a second S3 bucket in us-east-1. Enable S3 Cross-Region Replication from the existing S3 bucket to the second S3 bucket.
Create a cross-origin resource sharing (CORS) configuration of the existing S3 bucket. Specify us-east-1 in the CORS rule’s AllowedOrigin element.
Create a second S3 bucket in us-east-1 across multiple Availability Zones. Create an S3 Lifecycle management rule to save photos into the second S3 bucket.
Create a second S3 bucket in us-east-1 to store the replicated photos. Configure S3 event notifications on object creation and update events that invoke an AWS Lambda function to copy photos from the existing S3 bucket to the second S3 bucket.
Explanations:
This option uses S3 Cross-Region Replication (CRR), which automatically replicates objects from one S3 bucket to another in a different region. This solution requires minimal operational effort as it handles new and existing photos automatically without manual intervention.
A CORS configuration does not replicate or copy objects between buckets. It merely allows web applications from one origin to interact with resources in another. This does not fulfill the requirement of storing a copy of photos in another geographical location.
S3 Lifecycle management rules do not copy existing photos to a new bucket; they only manage object transitions between storage classes within the same bucket or delete them after a certain period. This option does not meet the requirement of storing a copy in another geographical location.
This option requires setting up an AWS Lambda function to manually copy objects, which involves more operational effort than necessary. It also does not automatically replicate existing objects; only new ones would be copied as events occur.
As far as I’m aware, the answer is:
Create a second S3 bucket in us-east-1. Enable S3 Cross-Region Replication from the existing S3 bucket to the second S3 bucket.