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copied!<p>If you want to make all objects public by default, the simplest way is to do it trough a <a href="http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingBucketPolicies.html" rel="noreferrer">Bucket Policy</a> instead of Access Control Lists (ACLs) defined on each individual object.</p> <p><a href="https://i.stack.imgur.com/zoeOE.png" rel="noreferrer"><img src="https://i.stack.imgur.com/zoeOE.png" alt="enter image description here"></a></p> <p>You can use the <a href="http://awspolicygen.s3.amazonaws.com/policygen.html" rel="noreferrer">AWS Policy Generator</a> to generate a bucket policy for your bucket. </p> <p>For example, the following policy will allow anyone to read every object in your S3 bucket (just replace <code><bucket-name></code> with the name of your bucket):</p> <pre><code>{ "Id": "Policy1380877762691", "Statement": [ { "Sid": "Stmt1380877761162", "Action": [ "s3:GetObject" ], "Effect": "Allow", "Resource": "arn:aws:s3:::<bucket-name>/*", "Principal": { "AWS": [ "*" ] } } ] } </code></pre> <p>The Bucket Policy contains a list of <code>Statements</code> and each statement has an <code>Effect</code> (either <code>Allow</code> or <code>Deny</code>) for a list of <code>Actions</code> that are performed by <code>Principal</code> (the user) on the specified <code>Resource</code> (identified by an <code>Amazon Resource Name</code> or <code>ARN</code>). </p> <p>The <code>Id</code> is just an optional policy id and the <code>Sid</code> is an optional unique statement id.</p> <p>For S3 Bucket Policies, the Resource ARNs take the form:</p> <pre><code>arn:aws:s3:::<bucket_name>/<key_name> </code></pre> <p>The above example allows (<code>Effect: Allow</code>) anyone (<code>Principal: *</code>) to access (<code>Action: s3:GetObject</code>) any object in the bucket (<code>Resource: arn:aws:s3:::<bucket-name>/*</code>).</p>

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