AWS S3 Source
The AWS S3 source enables Pic Swift CDN to download your images from a specified AWS S3 bucket
Create AWS S3 Source Credential
First, create a new source credentials of type AWS S3 if you havent done so:

AWS S3 source credential requires AWS Access Key ID and AWS Secret Access Key to authenticate to AWS S3.
Please the following AWS docs on how to:
Create IAM User
https://docs.aws.amazon.com/IAM/latest/UserGuide/id_users_create.html
Manage IAM User Access Keys
https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_access-keys.html
IAM User Permission
The IAM user should have permissions to list and get objects from the s3 bucket. Here is how that would look like as an IAM policy:
Where {bucketName} is your AWS S3 bucket name
Create AWS S3 Source
Then create a new AWS S3 source linking it with the source credential you created:

Once created take note of the source alias that is needed in the formation of your CDN url
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