You have created and modified infrastructure using Terraform. You will now learn how to destroy your Terraform-managed infrastructure.
Once you no longer need infrastructure, you might want to destroy it to reduce your security exposure and costs. For example, you may remove a production environment from service, or manage short-lived environments like build or testing systems. In addition to building and modifying infrastructure, Terraform can destroy or recreate the resources it manages.
Note
This tutorial builds on configuration from the previous tutorial. If you have not yet completed it, do so now.
The terraform destroy command terminates resources managed by your Terraform project. This command is the inverse of terraform apply in that it terminates all the resources specified in your Terraform state. It does not destroy resources running elsewhere that are not managed by the current Terraform project.
$ terraform destroy
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:
# google_compute_instance.vm_instance will be destroyed
- resource "google_compute_instance" "vm_instance" {
- can_ip_forward = false -> null
- cpu_platform = "Intel Haswell" -> null
- deletion_protection = false -> null
- enable_display = false -> null
- guest_accelerator = [] -> null
- id = "projects/testing-project/zones/us-central1-c/instances/terraform-instance" -> null
- instance_id = "1820538232654796756" -> null
- label_fingerprint = "42WmSpB8rSM=" -> null
- machine_type = "f1-micro" -> null
## ...
}
# google_compute_network.vpc_network will be destroyed
- resource "google_compute_network" "vpc_network" {
- auto_create_subnetworks = true -> null
- delete_default_routes_on_create = false -> null
- id = "projects/testing-project/global/networks/terraform-network" -> null
- name = "terraform-network" -> null
- project = "testing-project" -> null
- routing_mode = "REGIONAL" -> null
- self_link = "https://www.googleapis.com/compute/v1/projects/testing-project/global/networks/terraform-network" -> null
}
Plan: 0 to add, 0 to change, 2 to destroy.
Do you really want to destroy all resources?
Terraform will destroy all your managed infrastructure, as shown above.
There is no undo. Only 'yes' will be accepted to confirm.
Enter a value:
The - prefix indicates that Terraform will destroy the instance and the network. As with apply, Terraform shows its execution plan and waits for approval before making any changes.
Answer yes to execute this plan and destroy the infrastructure.
Enter a value: yes
google_compute_instance.vm_instance: Destroying... [id=projects/testing-project/zones/us-central1-c/instances/terraform-instance]
google_compute_instance.vm_instance: Still destroying... [id=projects/testing-project/zones/...entral1-c/instances/terraform-instance, 10s elapsed]
google_compute_instance.vm_instance: Destruction complete after 16s
google_compute_network.vpc_network: Destroying... [id=projects/testing-project/global/networks/terraform-network]
google_compute_network.vpc_network: Still destroying... [id=projects/testing-project/global/networks/terraform-network, 10s elapsed]
google_compute_network.vpc_network: Still destroying... [id=projects/testing-project/global/networks/terraform-network, 20s elapsed]
google_compute_network.vpc_network: Still destroying... [id=projects/testing-project/global/networks/terraform-network, 30s elapsed]
google_compute_network.vpc_network: Destruction complete after 37s
Destroy complete! Resources: 2 destroyed.
As with terraform apply, Terraform determines the order in which resources must be destroyed. GCP will not destroy a VPC network if there are other resources still in it, so Terraform waits until the instance is destroyed first. When performing operations, Terraform creates a dependency graph to determine the correct order of operations. In more complicated cases with multiple resources, Terraform will perform operations in parallel when it's safe to do so.
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