Sadly version 4 of the AWS Provider introduced lots of breaking changes for aws_s3_bucket without providing any smooth way for people to migrate their buckets.
In this situation, we can try to have an automatic way to detect buckets that have arguments and attributes which become read-only and comment on their related resources with the right names! This will speed up the migration and reduce the possibility of human mistakes while copy-pasting the names and attributes in high numbers.
After cloning this repo please follow the below steps inside its directory:
python3 -m venv venv
source venv/bin/activate
python -m pip install -r requirements.txt
Then you can see what it can do by running python main.py --help:
usage: main.py [-h] [-d] [--log-level LOG_LEVEL] terraform_files [terraform_files ...]
positional arguments:
terraform_files search pattern file, if `-` pattern is read from stdin
optional arguments:
-h, --help show this help message and exit
-d, --dry-run not adding any comments to the terraform files
--log-level LOG_LEVEL
set the logging level. Defaults to WARNING.
As you can see, you can feed it directly by your s3 buckets name or using some better ways like the combination with ag:
ag -l 'resource \"aws_s3_bucket\"' ~/works/terraform/**/*.tf | python main.py - --dry-run
Don't forget to adjust templates based on your needs and hope this tiny helper ease a bit your migration pain :)