Too Long; Didn't Read
AWS policies can be detailed and conflicting and it might take some puzzle solving attitude to untangle them and find out what would be the final rule in effect. In this blog post, we will be talking about such policies, particularly in the context of S3 buckets. When it comes to permissions to an S3 bucket, there are three major policies that you can notice being applied:IAM policy, S3 Bucket Policy, ACLs and S3 Access Control List. These are global and apply to all areas of AWS - S3, EC2, Lamda and EC2.