Home / GCP / Creating a Compute Instance on GCP Using Terraform
Creating a Compute Instance on GCP Using Terraform
Download and Install terraform
Download the most recent version of Terraform. No install, its just an executable. Move it to an accessible location.
> wget https://releases.hashicorp.com/terraform/0.11.11/terraform_0.11.11_linux_amd64.zip
...
> unzip terraform_0.11.11_linux_amd64.zip
...
> mv terraform ~/bin
...
> terraform --version
Terraform v0.11.11
Create a terraform Config File
Create a provider config file: main.tf
provider "google" {
project = "mjnurse-terraform"
region = "us-central1"
zone = "us-central1-c"
}
resource "google_compute_instance" "vm_instance" {
name = "terraform-instance"
#machine_type = "f1-micro"
machine_type = "n1-standard-4"
boot_disk {
initialize_params {
image = "debian-cloud/debian-9"
}
}
network_interface {
# A default network is created for all GCP projects
network = "${google_compute_network.vpc_network.self_link}"
access_config = {
}
}
}
resource "google_compute_network" "vpc_network" {
name = "terraform-network"
auto_create_subnetworks = "true"
}
Set Up the Required Credentials
From the Navigation Menu, select APIs & Services, Credentials. From the Create credentials drop down, select ‘Service account key’. ENsure that the JSON option is selected amd choose the ‘Compute Engine default service account’ from the drop down. Click create and a JSON document will be downloaded by the browser.
Copy the contents of the JSON download in to a file called google_cloud_keyfile.json.
create and environment variavle to point to this file:
> export GOOGLE_CLOUD_KEYFILE_JSON=google_cloud_keyfile.json
Run the terraform Script to Create the Compute Instance
Run terraform init:
> terraform init
* provider.google: version = "~> 2.0"
Terraform has been successfully initialized!
Run the terraform main.tf script:
> terraform apply
martin@website-builder:~/terraform$ terraform apply
google_compute_network.vpc_network: Refreshing state... (ID: terraform-network)
google_compute_instance.vm_instance: Refreshing state... (ID: terraform-instance)
An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
...
Plan: 1 to add, 0 to change, 0 to destroy.
Do you want to perform these actions?
Terraform will perform the actions described above.
Only 'yes' will be accepted to approve.
Enter a value: yes
google_compute_instance.vm_instance: Creating...
...
google_compute_instance.vm_instance: Still creating... (10s elapsed)
google_compute_instance.vm_instance: Still creating... (20s elapsed)
google_compute_instance.vm_instance: Creation complete after 29s (ID: terraform-instance)
Apply complete! Resources: 1 added, 0 changed, 0 destroyed.
Removing the Compute Instance
> terraform destroy
google_compute_network.vpc_network: Refreshing state... (ID: terraform-network)
google_compute_instance.vm_instance: Refreshing state... (ID: terraform-instance)
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
- google_compute_network.vpc_network
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: yes
google_compute_instance.vm_instance: Destroying... (ID: terraform-instance)
google_compute_instance.vm_instance: Destruction complete after 4s
google_compute_network.vpc_network: Destroying... (ID: terraform-network)
google_compute_network.vpc_network: Still destroying... (ID: terraform-network, 1m0s elapsed)
google_compute_network.vpc_network: Destruction complete after 1m6s
Destroy complete! Resources: 2 destroyed.
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