使用Terraform只针对一个实例，而不涉及不相关的资源

我有一个使用Terraform 0.14.6配置了多个OpenStack实例的环境。我现在只想使用

-target=

更改一个实例。Terraform仅正确选择一个实例，但它也针对其他实例的所有依赖资源：

> terraform plan -destroy -var-file=env-prod.tfvars -target='openstack_compute_instance_v2.bamboo_agent[0]'

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
  - destroy

Terraform will perform the following actions:

  # openstack_compute_floatingip_associate_v2.bamboo[0] will be destroyed
  - resource "openstack_compute_floatingip_associate_v2" "bamboo" {
...
    }

  # openstack_compute_floatingip_associate_v2.bamboo[1] will be destroyed
  - resource "openstack_compute_floatingip_associate_v2" "bamboo" {
...
    }

  # openstack_compute_floatingip_associate_v2.bamboo[2] will be destroyed
  - resource "openstack_compute_floatingip_associate_v2" "bamboo" {
...
    }

  # openstack_compute_instance_v2.bamboo_agent[0] will be destroyed
  - resource "openstack_compute_instance_v2" "bamboo_agent" {
...
    }

  # openstack_compute_volume_attach_v2.attach_agent[0] will be destroyed
  - resource "openstack_compute_volume_attach_v2" "attach_agent" {
...
    }

  # openstack_compute_volume_attach_v2.attach_agent[1] will be destroyed
  - resource "openstack_compute_volume_attach_v2" "attach_agent" {
...
    }

  # openstack_compute_volume_attach_v2.attach_agent[2] will be destroyed
  - resource "openstack_compute_volume_attach_v2" "attach_agent" {
...
    }

  # openstack_compute_volume_attach_v2.attach_docker[0] will be destroyed
  - resource "openstack_compute_volume_attach_v2" "attach_docker" {
...
    }

  # openstack_compute_volume_attach_v2.attach_docker[1] will be destroyed
  - resource "openstack_compute_volume_attach_v2" "attach_docker" {
...
    }

  # openstack_compute_volume_attach_v2.attach_docker[2] will be destroyed
  - resource "openstack_compute_volume_attach_v2" "attach_docker" {
...
    }

Plan: 0 to add, 0 to change, 10 to destroy.

地形配置的一部分：

resource "openstack_compute_instance_v2" "bamboo_agent" {
  name               = var.agents[count.index].name
  image_name         = var.image
  flavor_name        = var.agents[count.index].flavor
  user_data          = file("scripts/cloud-config.yml")
  network {
    port             = openstack_networking_port_v2.bamboo[count.index].id
  }
  count= length(var.agents)
}

# create Volume
resource "openstack_blockstorage_volume_v2" "volume_agent" {
  name        = format("volume-agent-${terraform.workspace}-%s", count.index)
  description = "volume for bamboo agent data"
  size        = 50
  count = length(var.agents)
}

...

# attach volume
resource "openstack_compute_volume_attach_v2" "attach_agent" {
  instance_id = openstack_compute_instance_v2.bamboo_agent[count.index].id
  volume_id   = openstack_blockstorage_volume_v2.volume_agent[count.index].id
  device = "/dev/vdc"
  count = length(var.agents)
}

# Attach floating ip to instance
resource "openstack_compute_floatingip_associate_v2" "bamboo" {
  floating_ip = var.agents[count.index].ip
  instance_id = openstack_compute_instance_v2.bamboo_agent[count.index].id
  count = length(var.agents)
}

...

env.prod.tfvars文件（已屏蔽）：

如何仅应用于单个实例及其资源以保持其他实例的运行

image = "XXX"
agents = [
    {
      name = "XXX-0"
      uuid = "XXX"
      id = "XXX"
      ip = "x.x.x.x"
      flavor = "XXX"
    },
    {
      name = "XXX-1"
      id = "XXX"
      uuid = "XXX"
      ip = "x.x.x.x"
      flavor = "XXX"
    },
    {
      name = "XXX-2"
      id = "114393114"
      uuid = "XXX"
      ip = "x.x.x.x"
      flavor = "XXX"
    }
]