terraform-gcp-ampere-t2a

Requirements

• Terraform
• Google Cloud Account

What exactly is Terraform doing

The goal of this code is to supply the minimal ammount of information to quickly have working Ampere Tau2a instances on Google Cloud.

Addtional tasks performed by this code:

• Dynamically creating sshkeys to use when logging into the instance.
• Dynamically getting region, availability zone and image id..
• Creating necessary core networking configurations for the tenancy
• Rendering metadata to pass into the Ampere A1 instance.
• Launch multiple Ampere taut2a instances with metadata and ssh keys.
• Output IP information to connect to the instance.

To get started clone this repository from GitHub locally.

Configuration with terraform.tfvars

The easiest way to configure is to use a terraform.tfvars in the project directory. Please note that Compartment OCID are the same as Tenancy OCID for Root Compartment. The following is an example of what terraform.tfvars should look like:

project_id = "myterraform-123456"
location = "US"

Using as a Module

This can also be used as a terraform module. The examples directory contains example code for module usage showing different operating systems booting with a custom cloud-init templates. Doing a clone of this repository and changing directory to one of the examples, placing a terraform.tfvars into that directory, and running a typical terrafornm workflow will produce a working virtual machine in the os that was specified in the main.tf that is located within the chosen example directory.

Running Terraform

terraform init && terraform plan && terraform apply -auto-approve

Running OpenTofu

tofu init && tofu plan && tofu apply -auto-approve

Logging in

Once everthing as executed, properly you'll need to login. Currently I successfully login via my google cloud email account in the following format. Where the "@" symbal and "." are replaces with underscores.

for example:

ssh -i

OS Images

Reference for OS images https://cloud.google.com/compute/docs/images/os-details

Providers

Name	Version
cloudinit	n/a
google	n/a
local	n/a
random	n/a
tls	n/a

Resources

Name	Type
google_compute_address.static_ip	resource
google_compute_firewall.ssh	resource
google_compute_instance.default	resource
google_compute_network.vnet	resource
google_compute_subnetwork.vnet	resource
google_os_login_ssh_public_key.cache	resource
local_file.gcp-ssh-privkey	resource
local_file.gcp-ssh-pubkey	resource
random_uuid.random_id	resource
tls_private_key.gcp	resource
cloudinit_config.cloud_config	data source
google_client_openid_userinfo.me	data source
google_compute_image.fedora_coreos_next	data source
google_compute_image.fedora_coreos_stable	data source
google_compute_image.fedora_coreos_testing	data source

Inputs

Name	Description	Type	Default	Required
cloud_init_template_file	Optional path for a cloud-init file	string	null	no
gcp_os_image	Default OS Image From the Local Vars	string	"ubuntu2404"	no
gcp_vcn_cidr_block	CIDR Address range for GCE Networks	string	"10.2.0.0/16"	no
gcp_vcn_cidr_subnet	CIDR Address range for GCE Networks	string	"10.2.1.0/24"	no
gcp_vm_count	GCE Virtual Machine Count	number	1	no
instance_prefix	Name prefix for vm instances	string	"ampere-taut2a"	no
location	Google Location	string	"US"	no
project_id	Google Project ID	any	n/a	yes
region	Google Region	string	"us-central1"	no
startup_script_template_file	Optional path for a startup script file	string	null	no
virtual_network_name	virtual_network_name	string	"terraform-ampere-taut2a"	no
zone	Google Region	string	"us-central1-a"	no

Outputs

Name	Description
ampere_t2a_metadata	Output rendered instance Metadata
ampere_t2a_private_ips	Output GCE Ampere Instance Private IP(s)
ampere_t2a_public_ips	Output GCE Ampere Instance Public IP(s)
cloud_config	n/a
gcp_ssh_private_key	Output GCE SSH private key
gcp_ssh_pubic_key	Output GCE SSH public key
my-email	Output email address
random_uuid	Output a randomly generated uuid