将 AWS CloudFormation S3 资源转换为 Terraform 资源

Question

I want to convert AWS S3 resources form cloudformation template to terraform template. But No existing data loss/data changes should be there to the S3 storage result from the transition. Please suggest some idea, how we can avoid S3 bucket data loss or data change issue.

Answer 1

You can use terraform import to achieve this. Here's a short example of importing an S3 bucket:

1. Create your terraform definition for the bucket. You can leave all attributes empty.

resource "aws_s3_bucket" "my-bucket" {
}

2. run terraform init to enable providers
3. run terraform import aws_s3_bucket.my-bucket <name-of-existing-bucket>

Now the bucket will be in the Terraform state file and can be managed with Terraform. Any changes to the Terraform file can now be applied to the existing bucket.