Amazon S3 Permission problem - How to set permissions for all files at once

Question

I have some files in my S3 bucket. When I try to access them, I get a 403 error i.e Access Denied.

On further research, I found out that I have to change the permission of the file to "view"

How to do that for all the files on the bucket? I know that it is possiable setting permission for each file. It takes very much times when having really many files that need to be viewable for everyone

Answer 1

This can be done by setting the bucket policy for S3. If not, you will have to set the permission for every object that you upload. Following is the policy which make all the objects public automatically:

{ 

"Version": "2008-10-17", "Id": "http better policy", 

"Statement": [ 

{

"Sid": "readonly policy", 

"Effect": "Allow", 

"Principal": "*", 

"Action": "s3:GetObject", 

"Resource": "arn:aws:s3:::mybucket/sub/dirs/are/supported/*" 

}

                      ]                       

}

Answer 2

To make a bulk of files public, do the following:

1. Go to S3 web interface
2. Open the required bucket
3. Select the required files and folders by clicking the checkboxes at the left of the list
4. Click «More» button at the top of the list, click «Make public»
5. Confirm by clicking «Make public». The files won't have a public write access despite the warning says «...read this object, read and write permissions».