Google Compute Engine Region Per Instance Config

google_compute_region_per_instance_config (Terraform)

The Region Per Instance Config in Compute Engine can be configured in Terraform with the resource name google_compute_region_per_instance_config. The following sections describe how to use the resource and its parameters.

Example Usage from GitHub

An example could not be found in GitHub.

Parameters

• id optional computed - string
• minimal_action optional - string
• most_disruptive_allowed_action optional - string
• name required - string

The name for this per-instance config and its corresponding instance.

• project optional computed - string
• region optional computed - string

Region where the containing instance group manager is located

• region_instance_group_manager required - string

The region instance group manager this instance config is part of.

• remove_instance_state_on_destroy optional - bool
• preserved_state list block
  • metadata optional - map from string to string

  Preserved metadata defined for this instance. This is a list of key->value pairs.

  • disk set block
    • delete_rule optional - string

    A value that prescribes what should happen to the stateful disk when the VM instance is deleted. The available options are 'NEVER' and 'ON_PERMANENT_INSTANCE_DELETION'. 'NEVER' - detach the disk when the VM is deleted, but do not delete the disk. 'ON_PERMANENT_INSTANCE_DELETION' will delete the stateful disk when the VM is permanently deleted from the instance group. Default value: "NEVER" Possible values: ["NEVER", "ON_PERMANENT_INSTANCE_DELETION"]

    • device_name required - string

    A unique device name that is reflected into the /dev/ tree of a Linux operating system running within the instance.

    • mode optional - string

    The mode of the disk. Default value: "READ_WRITE" Possible values: ["READ_ONLY", "READ_WRITE"]

    • source required - string

    The URI of an existing persistent disk to attach under the specified device-name in the format 'projects/project-id/zones/zone/disks/disk-name'.

• timeouts single block
  • create optional - string
  • delete optional - string
  • update optional - string

Explanation in Terraform Registry

A config defined for a single managed instance that belongs to an instance group manager. It preserves the instance name across instance group manager operations and can define stateful disks or metadata that are unique to the instance. This resource works with regional instance group managers. To get more information about RegionPerInstanceConfig, see:

• API documentation
• How-to Guides
  • Official Documentation

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.

google_compute_disk

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.

google_compute_firewall

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.

google_compute_instance

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.

google_compute_project_metadata

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.

google_compute_ssl_policy

Ensure to use modern TLS protocols

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

google_compute_subnetwork

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.