importing existing compute nodes

and generating their terraform config

start with a MWE and no definitions

vi providers.tf

terraform {
  required_providers {
    yandex = {
      source = "yandex-cloud/yandex"
    }
  }
  required_version = ">= 1.0.0"
}

vi main.tf

# yc compute instance list | grep INSTANCE-NAME
import {
  id = "..." # INSTANCE-NAME
  to = yandex_compute_instance.server
}

# yc compute disk list | grep INSTANCE-ID
import {
  id = "..." # DISK-NAME
  to = yandex_compute_disk.boot-disk
}

# yc vpc address list | grep PUBLIC-IP
import {
  id = "..." # PUBLIC-IP
  to = yandex_vpc_address.static
}

prepare your env

    yc config profile list
    yc config profile activate test

    export YC_TOKEN=`yc iam create-token`
    export YC_CLOUD_ID=`yc config get cloud-id`

    echo $YC_TOKEN
    echo $YC_CLOUD_ID

now ready to generate the definitions

terraform init
terraform plan -generate-config-out=generated_resources.tf
cat generated_resources.tf >> main.tf
rm -f generated_resources.tf
rm -rf .terraform*

terraform init
terraform plan
terraform apply

resources

FW https://developer.hashicorp.com/terraform/language/import/generating-configuration