Google Compute Engine Network

This page shows how to write Terraform for Compute Engine Network and write them securely.

google_compute_network (Terraform)

The Network in Compute Engine can be configured in Terraform with the resource name google_compute_network. The following sections describe 2 examples of how to use the resource and its parameters.

Example Usage from GitHub
resource "google_compute_network" "management_network" {
  project                 = google_project.blue_team_project.project_id
  name                    = "management"
  auto_create_subnetworks = false
resource "google_compute_network" "management_network" {
  project                 = google_project.globalprotect.number
  name                    = "management"
  auto_create_subnetworks = false
resource "google_compute_network" "untrust_network" {

Review your Terraform file for Google best practices

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When set to 'true', the network is created in "auto subnet mode" and it will create a subnet for each region automatically across the '' address range. When set to 'false', the network is created in "custom subnet mode" so the user can explicitly connect subnetwork resources.

An optional description of this resource. The resource must be recreated to modify this field.

The gateway address for default routing out of the network. This value is selected by GCP.

  • id optional computed - string
  • mtu optional computed - number

Maximum Transmission Unit in bytes. The minimum value for this field is 1460 and the maximum value is 1500 bytes.

Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression 'a-z?' which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.

The network-wide routing mode to use. If set to 'REGIONAL', this network's cloud routers will only advertise routes with subnetworks of this network in the same region as the router. If set to 'GLOBAL', this network's cloud routers will advertise routes with all subnetworks of this network, across regions. Possible values: ["REGIONAL", "GLOBAL"]

Explanation in Terraform Registry

Manages a VPC network or legacy network resource on GCP. To get more information about Network, see:

Tips: Best Practices for The Other Google Compute Engine Resources

In addition to the google_compute_disk, Google Compute Engine has the other resources that should be configured for security reasons. Please check some examples of those resources and precautions.



Ensure the encryption key for your GCE disk is stored securely

It is better to store the encryption key for your GCE disk securely. Secret Manager could be used instead.



Ensure your VPC firewall blocks unwanted outbound traffic

It is better to block unwanted outbound traffic not to expose resources in the VPC to unwanted attacks.



Ensure appropriate service account is assigned to your GCE instance

It is better to create a custom service account for the instance and assign it.



Ensure OS login for your GCE instances is enabled at project level

It is better to enable OS login for your GCE instances. Enabling OS login ensures that SSH keys used to connect to instances are mapped with IAM users, allowing centralized and automated SSH key management.



Ensure to use modern TLS protocols

It's better to adopt TLS v1.2+ instead of outdated TLS protocols.



Ensure VPC flow logging is enabled

It is better to enable VPC flow logging. VPC flow logging allows us to audit traffic in your network.

Review your Google Compute Engine settings

In addition to the above, there are other security points you should be aware of making sure that your .tf files are protected in Shisho Cloud.

Frequently asked questions

What is Google Compute Engine Network?

Google Compute Engine Network is a resource for Compute Engine of Google Cloud Platform. Settings can be wrote in Terraform.

Where can I find the example code for the Google Compute Engine Network?

For Terraform, the wwce/terraform and netfryer/terraform source code examples are useful. See the Terraform Example section for further details.


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