Terraform，如何在现有资源上运行配置程序？(Terraform, How to run the provisioner on existing resources?)

 我的问题类似于这个git hub帖子： 
 
 https://github.com/hashicorp/terraform/issues/745 
 
 它还与我的另一个堆栈交换帖有关： 
 
 尝试获取多个实例的IP地址时，Terraform停顿了吗？ 
 
 我正在尝试引导几个服务器，并且我需要在我的实例上运行几个命令，这些命令需要所有其他实例的IP地址。 但是，在创建实例之前，我无法访问保存新创建实例的IP地址的变量。 所以，当我尝试像这样运行provisioner "remote-exec" ： 
 
  provisioner "remote-exec" {
    inline = [
      "sudo apt-get update",
      "sudo apt-get install -y curl",
      "echo ${openstack_compute_instance_v2.consul.0.network.0.fixed_ip_v4}",
      "echo ${openstack_compute_instance_v2.consul.1.network.1.fixed_ip_v4}",
      "echo ${openstack_compute_instance_v2.consul.2.network.2.fixed_ip_v4}"
    ]
  }
 
 没有任何事情发生，因为所有实例都在等待所有其他实例完成创建，因此首先不创建任何内容。 所以我需要一种方法来创建我的资源，然后在创建后运行我的provisioner "remote-exec"块命令，terraform可以访问我所有实例的IP地址。 

My question is similar to this git hub post:
 
https://github.com/hashicorp/terraform/issues/745
 
It is also related to another stack exchange post of mine:
 
Terraform stalls while trying to get IP addresses of multiple instances?
 
I am trying to bootstrap several servers and there are several commands I need to run on my instances that require the IP addresses of all the other instances. However I cannot access the variables that hold the IP addresses of my newly created instances until they are created. So when I try to run a provisioner "remote-exec" block like this:
 
  provisioner "remote-exec" {
    inline = [
      "sudo apt-get update",
      "sudo apt-get install -y curl",
      "echo ${openstack_compute_instance_v2.consul.0.network.0.fixed_ip_v4}",
      "echo ${openstack_compute_instance_v2.consul.1.network.1.fixed_ip_v4}",
      "echo ${openstack_compute_instance_v2.consul.2.network.2.fixed_ip_v4}"
    ]
  }
 
Nothing happens because all the instances are waiting for all the other instances to finish being created and so nothing is created in the first place. So I need a way for my resources to be created and then run my provisioner "remote-exec" block commands after they are created and terraform can access the IP addresses of all my instances.

原文：https://stackoverflow.com/questions/37865979