How to import state using terraform. The terraformer is the google project which can have your state ready
terraformer import aws --resources=vpc,subnet --connect=true --regions=eu-west-1 --profile=prod
terraformer import aws --resources=vpc,subnet --filter=vpc=vpc_id1:vpc_id2:vpc_id3 --regions=eu-west-1
Terraformer is a CLI tool that generates tf/json and tfstate files based on existing infrastructure (reverse Terraform).