AWS CloudFormation to create a unique bucket with lifecycle in every region.
This is a CloudFormation template to create a uniquely named bucket with a very
aggressive lifecycle policy. The template is deployed to every region via
AWS CloudFormation StackSets. There is an additional "helper" template to setup the
required StackSet IAM Roles, I chose us-east-2 for my "Control Plane" for
this repo.
Up until now, I used a unique but artisanally named bucket as a lambda zip file artifact storage location. This bucket must be in the region that the lambda function is in. After I confirmed that the artifact is only needed in the customer managed bucket until the function is deployed (ie, minutes or some other not very long value), I decided that I could automate this and avoid clicking in the AWS Console.
A unique but similar named bucket in every region of this form:
lambda-artifacts-${AWS::AccountId}-${AWS::Region}
that expires objects after one day. Now I know a definitive artifact storage
location for my projects.
When the bucket(s) have some objects in them for a day, there will be the
normal S3 Storage Costs. Otherwise some small fraction of a penny because things
like the AWS Cost Explorer does List operations on empty buckets. Sidenote: I
like how the billing observation system will make you incur charges so that you
know how much you owe. 😐