如果设置了 prevent_destroy 生命周期，则 Terraform 计划显示错误

Question

Getting below error while running Terraform Plan or Terraform refresh, How to resolve this.

Error: Instance cannot be destroyed

on ..\ec2\ec2.tf line 89: 89: resource "aws_instance" "strdicomdev" {

Resource module.ec2.aws_instance.strdicomdev has lifecycle.prevent_destroy set, but the plan calls for this resource to be destroyed. To avoid this error and continue with the plan, either disable lifecycle.prevent_destroy or reduce the scope of the plan using the -target flag.

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Answer 1

The answer is in the error message:

module.ec2.aws_instance.strdicomdev has lifecycle.prevent_destroy

If you look at this module it will have a lifecycle stanza which includes prevent_destroy = true. Since it's a module, maybe it is has a variable to control this, and the default is to prevent destroy. The easiest thing to do is to remove the prevent_destroy part of the lifecycle stanza or set it to false (either by changing the module or setting the variable if the module uses one)