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

+4 votes
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
Mar 27, 2018 in Cloud Computing by hemant
• 5,790 points
4,100 views

2 answers to this question.

+1 vote

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/*" 

}

                      ]                       

}
answered Mar 27, 2018 by brat_1
• 7,200 points
0 votes

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».
answered Oct 11, 2018 by findingbugs
• 4,780 points

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