I'm trying to create an Amazon S3 Bucket Policy using the Policy Generator, but I'm stumped. Every time I try to provide an ARN, like "arn:aws:s3:s3-demo-bucket-2022", I get an error saying "Resource field is not valid. You must enter a valid ARN." This issue is consistent across multiple S3 buckets and different AWS accounts. Can anyone provide insight or suggestions on how to resolve this?
5 Answers
It looks like the ARN you used isn't formatted correctly. Make sure you follow the right structure for S3 ARNs, which typically looks like this: "arn:aws:s3:::bucket-name". The colons matter, so double-check your ARN format!
You might want to copy the ARN directly from the AWS console to ensure it's correct. Sometimes it’s easy to make a mistake when typing it out manually!
Just a quick note - when defining the ARN, the colons are significant. Make sure you have them correctly. So it should follow this pattern: "arn:aws:s3:::your-bucket-name". Each segment matters!
Thanks! So just to be clear, after 's3' I should only have two colons before the bucket name, right?
Also, verify all instances where the policy refers back to the bucket itself. It needs to match the ARN of the bucket exactly that you're applying the policy to. Double-check that!
Sorry to hear about the trouble! I came across a helpful thread that could provide some guidance. You might want to check it out here: https://go.aws/4fVFGLK. If nothing works, don’t hesitate to explore more help options on the AWS support page.
Got it! So just to clarify, the sections in the ARN are separated by colons, and after "s3" you have the bucket name? Is there something specific that should go after the second set of colons?