AWS CloudFormation: Creating an S3 Bucket with Lifecycle and Access Control Policies

Amazon Web Services (AWS) CloudFormation allows for the automation of creating and managing AWS resources using templates. This guide shows how to create an S3 bucket with predefined lifecycle and access control policies using CloudFormation. The process starts with understanding the basics of AWS CloudFormation, which uses YAML or JSON templates to define resources and their configurations. The guide then provides a practical example of creating an S3 bucket with a lifecycle policy that transitions objects to Glacier storage after 30 days and deletes them after 365 days, along with an access control policy that sets the bucket as private and allows read-only access to all users. The template includes key components like the S3 bucket resource, lifecycle configuration, and bucket policy. To deploy the template, users need to upload it to the AWS Management Console, specify stack details, and monitor the deployment until it's complete. It's also important to validate the setup by verifying the S3 bucket, checking the lifecycle policy, and reviewing access control. Best practices include using parameterized templates, enabling logging, securing access, and monitoring costs.