Terraform Import Existing Resources: Fix State Mismatch and Drift

terraform import <resource_address> <resource_id>

terraform import aws_instance.web i-0a1b2c3d4e5f67890

terraform import aws_s3_bucket.my_bucket my-bucket-name

terraform import aws_vpc.main vpc-0a1b2c3d4e5f

terraform import aws_db_instance.postgres my-postgres-db

terraform import aws_eks_cluster.main my-cluster-name

resource "aws_s3_bucket" "logs" {
  bucket = "my-company-logs-2026"
}

terraform import aws_s3_bucket.logs my-company-logs-2026

terraform plan
# Shows drift — update .tf to match actual resource

terraform plan
# "No changes. Your infrastructure matches the configuration."

import {
  to = aws_s3_bucket.logs
  id = "my-company-logs-2026"
}
 
import {
  to = aws_instance.web
  id = "i-0a1b2c3d4e5f67890"
}

terraform plan -generate-config-out=generated.tf
# Generates resource config automatically

terraform state rm aws_s3_bucket.logs
terraform import aws_s3_bucket.logs my-company-logs-2026

# List all managed resources
terraform state list
 
# Show resource details
terraform state show aws_s3_bucket.logs
 
# Remove from state (stop managing)
terraform state rm aws_s3_bucket.old_logs