Google Storage Buckets is the service from Google to store unstructured data that can be accesses by a key. Data stored in a Google Storage Bucket is ultimately stored on a persistent disk. By default Google will encrypt/decrypt stored data using a google managed encryption key. This terraform project creates both a bucket with a google managed key and a customer managed key for encryption.

for more information read https://binx.io/blog/2018/11/15/encryption-at-rest-with-google-storage-buckets.

to create the buckets, type:

GOOGLE_PROJECT=$(gcloud config get-value project)
terraform apply -auto-approve

to remove the buckets, type:

terraform destroy -force

Note that it will take 24 hours before the KMS key is actually deleted.