terraform-nhn-create-instnace-modules

Before You Begin

Prepare

Start Terraform

Before You Begin

To successfully perform this tutorial, you must have the following:

An NHN Cloud account. See Signing Up for NHN Cloud

Prepare

Prepare your environment for authenticating and running your Terraform scripts. Also, gather the information your account needs to authenticate the scripts.

Install Terraform

Install the latest version of Terraform v1.3.0+:

In your environment, check your Terraform version.
```
terraform -v
```
If you don't have Terraform v1.3.0+, then install Terraform using the following steps.
From a browser, go to Download Latest Terraform Release.
Find the link for your environment and then follow the instructions for your environment. Alternatively, you can perform the following steps. Here is an example for installing Terraform v1.3.3 on Linux 64-bit.
In your environment, create a temp directory and change to that directory:
```
mkdir temp
```
```
cd temp
```

Download the Terraform zip file. Example:

wget https://releases.hashicorp.com/terraform/1.3.3/terraform_1.3.3_linux_amd64.zip

Unzip the file. Example:
```
unzip terraform_1.3.3_linux_amd64.zip
```
Move the folder to /usr/local/bin or its equivalent in Mac. Example:
```
sudo mv terraform /usr/local/bin
```
Go back to your home directory:
```
cd
```
Check the Terraform version:
```
terraform -v
```
Example: Terraform v1.3.3 on linux_amd64.

Get API-Key

We need the provider information below to use the nhn terraform.

user_name
- Use the NHN Cloud ID.
tenant_id
- From Compute > Instance > Management on NHN Cloud console, click Set API Endpoint to check the Tenant ID.
password
- Use API Password that you saved in Set API Endpoint.
- Regarding how to set API passwords, see User Guide > Compute > Instance > API Preparations.
auth_url
- Specify the address of the NHN Cloud identification service.
- From Compute > Instance > Management on NHN Cloud console, click Set API Endpoint to check Identity URL.
region
- Enter the region to manage NHN Cloud resources.
- KR1: Korea (Pangyo) Region
- KR2: Korea (Pyeongchon) Region
- JP1: Japan (Tokyo) Region

Start Terraform

To use terraform, you must have a terraform file of command written and a terraform executable.

You should create a folder to use terraform, create a terraform.tf file, and enter the contents below.

 # Define required providers
 terraform {
 	required_version = ">= 1.3.0"
 	required_providers {
 		openstack = {
 			source  = "terraform-provider-openstack/openstack"
 			version = "1.48.0"
 		}
 	}
 }

 # Configure the OpenStack Provider
 provider "openstack" {
 	user_name = var.terraform_data.provider.user_name
 	tenant_id = var.terraform_data.provider.tenant_id
 	password  = var.terraform_data.provider.password
 	auth_url  = var.terraform_data.provider.auth_url
 	region    = var.terraform_data.provider.region
 }

 # Variable
 variable "terraform_data" {
 	type = object({
 		provider = object({
 			user_name = string
 			tenant_id = string
 			password  = string
 			auth_url  = string
 			region    = string
 		})
 		vm_info = object({
 			vm_name             = string
 			user_data_file_path = optional(string, null)
 			additional_volumes  = optional(list(number), [])
 			OS = object({
 				OS_name                 = string
 				OS_version              = string
 				boot_volume_size_in_gbs = optional(number, 20)
 			})
 			network_interface = object({
 				network_name               = string
 				security_group_name        = optional(string, null)
 				create_security_group_name = optional(string, null)
 				create_security_group_rules = optional(list(object({
 					direction        = optional(string, null)
 					ethertype        = optional(string, null)
 					protocol         = optional(string, null)
 					port_range_min   = optional(string, null)
 					port_range_max   = optional(string, null)
 					remote_ip_prefix = optional(string, null)
 				})), null)
 			})
 			flavor = object({
 				flavor_name = string
 			})
 			ssh_authorized_keys = optional(object({
 				key_pair_name        = optional(string, null)
 				create_key_pair_name = optional(string, null)
 				ssh_public_key       = optional(string, null)
 				ssh_public_key_file  = optional(string, null)
 			}), {
 				key_pair_name        = null
 				create_key_pair_name = null
 				ssh_public_key       = null
 				ssh_public_key_file  = null
 			})
 		})
 	})
 }

 # Create instance
 module "create_nhn_instance" {
 	source  = "git::https://github.com/ZConverter-Cloud/terraform-nhn-create-instance-modules.git"
 	region  = var.terraform_data.provider.region
 	vm_name = var.terraform_data.vm_info.vm_name

 	OS                      = var.terraform_data.vm_info.OS.OS_name
 	OS_version              = var.terraform_data.vm_info.OS.OS_version
 	boot_volume_size_in_gbs = var.terraform_data.vm_info.OS.boot_volume_size_in_gbs

 	flavor_name = var.terraform_data.vm_info.flavor.flavor_name

 	key_pair_name        = var.terraform_data.vm_info.ssh_authorized_keys.key_pair_name
 	create_key_pair_name = var.terraform_data.vm_info.ssh_authorized_keys.create_key_pair_name
 	ssh_public_key       = var.terraform_data.vm_info.ssh_authorized_keys.ssh_public_key
 	ssh_public_key_file  = var.terraform_data.vm_info.ssh_authorized_keys.ssh_public_key_file

 	network_name                = var.terraform_data.vm_info.network_interface.network_name
 	security_group_name         = var.terraform_data.vm_info.network_interface.security_group_name
 	create_security_group_name  = var.terraform_data.vm_info.network_interface.create_security_group_name
 	create_security_group_rules = var.terraform_data.vm_info.network_interface.create_security_group_rules

 	user_data_file_path = var.terraform_data.vm_info.user_data_file_path
 	additional_volumes  = var.terraform_data.vm_info.additional_volumes
 }

 output "result" {
 	value = module.create_nhn_instance.result
 }

After creating the nhn_terraform.json file to enter the user's value, you must enter the contents below.
The nhn_terraform.json below is an example of a required value only. See below the Attributes table for a complete example.

There is an attribute table for input values under the script, so you must refer to it.

 {
 	"terraform_data" : {
 		"provider" : {
 			"auth_url" : "https://api-identity.infrastructure.cloud.toast.com/v2.0",
 			"tenant_id" : "66***********************************",
 			"user_name" : "********@yournhnemail.com",
 			"password" : "***************",
 			"region" : "KR1"
 		},
 		"vm_info" : {
 			"vm_name" : "test",
 			"OS" : {
 				"OS_name" : "ubuntu server",
 				"OS_version" : "20.04",
 				"boot_volume_size_in_gbs" : 30
 			},
 			"network_interface" : {
 				"network_name" : "Default Network",
 				"create_security_group_name" : "security_group1",
 				"create_security_group_rules" : [
 					{
 						"direction" : "ingress",
 						"ethertype" : "IPv4",
 						"protocol" : "tcp",
 						"port_range_min" : "22",
 						"port_range_max" : "22",
 						"remote_ip_prefix" : "0.0.0.0/0"
 					}
 				]
 			},
 			"flavor" : {
 				"flavor_name" : "m2.c2m4"
 			},
 			"ssh_authorized_keys" : {
 				"create_key_pair_name" : "test-key",
 				"ssh_public_key" : "ssh-rsa *************************"
 			},
 			"additional_volumes" : [50]
 		}
 	}
 }

Attribute Table

Attribute	Data Type	Required	Default Value	Description
terraform_data.provider.auth_url	string	yes	none	The auth_url you recorded in the memo during the preparation step.
terraform_data.provider.tenant_id	string	yes	none	The tenant_id you recorded in the memo during the preparation step.
terraform_data.provider.user_name	string	yes	none	The user_name you recorded in the memo during the preparation step.
terraform_data.provider.password	string	yes	none	The password you recorded in the memo during the preparation step.
terraform_data.provider.region	string	yes	none	The region you recorded in the memo during the preparation step.
terraform_data.vm_info.vm_name	string	yes	none	The name of the instance you want to create.
terraform_data.vm_info.OS.OS_name	string	yes	none	Enter the OS name you want to create among (`windows`, `centos`, `ubuntu`, `rocky`, `debian buster`, `debian bullseye`).
terraform_data.vm_info.OS.OS_version	string	yes	none	The version of the OS you want to create.
terraform_data.vm_info.OS.boot_volume_size_in_gbs	number	no	20	Boot volume size of the instance you want to create.
terraform_data.vm_info.flavor.flavor_name	string	yes	none	flavor types provided by NHN Cloud.
terraform_data.vm_info.network_interface.network_name	string	yes	none	The name of the VPC you want to use.
terraform_data.vm_info.network_interface.security_group_name	string	no	none	Name of the security-group you want to use.
terraform_data.vm_info.network_interface.create_security_group_name	string	no	none	The name of the Security-Group to create.
terraform_data.vm_info.network_interface.create_security_group_rules	list	no	none	When you need to create ingress and egress rules.
terraform_data.vm_info.network_interface.create_security_group_rules.[*].direction	stirng	conditional	none	Either `ingress` or `egress`
terraform_data.vm_info.network_interface.create_security_group_rules.[*].ethertype	string	conditional	none	Either `IPv4` or `IPv6`
terraform_data.vm_info.network_interface.create_security_group_rules.[*].protocol	string	conditional	none	Enter a supported protocol name Supported Protocols
terraform_data.vm_info.network_interface.create_security_group_rules.[*].port_range_min	string	conditional	none	Minimum Port Range (Use only when using `udp`, `tcp` `protocol`)
terraform_data.vm_info.network_interface.create_security_group_rules.[*].port_range_max	string	conditional	none	Maximum Port Range (Use only when using `udp`, `tcp` `protocol`)
terraform_data.vm_info.network_interface.create_security_group_rules.[*].remote_ip_prefix	string	conditional	none	CIDR (ex : `0.0.0.0/0`)
terraform_data.vm_info.ssh_authorized_keys.ssh_public_key	string	conditional	none	ssh public key to use when using Linux-based OS. (Use only one of the following: ssh_public_key, ssh_public_key_file_path)
terraform_data.vm_info.ssh_authorized_keys.ssh_public_key_file	string	conditional	none	Absolute path of ssh public key file to use when using Linux-based OS. (Use only one of the following: ssh_public_key, ssh_public_key_file_path)
terraform_data.vm_info.user_data_file_path	string	conditional	none	Absolute path of user data file path to use when cloud-init.
terraform_data.vm_info.additional_volumes	string	conditional	none	Use to add a block volume. Use numeric arrays.

nhn_terraform.json Full Example

{
	"terraform_data": {
		"provider": {
			"user_name": null,
			"tenant_id": null,
			"password": null,
			"auth_url": null,
			"region": null
		},
		"vm_info": {
			"vm_name": null,
			"user_data_file_path": null,
			"additional_volumes": [],
			"OS": {
				"OS_name": null,
				"OS_version": null,
				"boot_volume_size_in_gbs": 20
			},
			"network_interface": {
				"network_name": null,
				"security_group_name": null,
				"create_security_group_name": null,
				"create_security_group_rules": null
			},
			"flavor": {
				"flavor_name": null
			},
			"ssh_authorized_keys": {
				"key_pair_name": null,
				"create_key_pair_name": null,
				"ssh_public_key": null,
				"ssh_public_key_file": null
			}
		}
	}
}

Go to the file path of Terraform.exe and Initialize the working directory containing the terraform configuration file.
```
terraform init
```
- Note -chdir : When you use a chdir the usual way to run Terraform is to first switch to the directory containing the .tf files for your root module (for example, using the cd command), so that Terraform will find those files automatically without any extra arguments. (ex : terraform -chdir=<terraform data file path> init)
Creates an execution plan. By default, creating a plan consists of:
- Reading the current state of any already-existing remote objects to make sure that the Terraform state is up-to-date.
- Comparing the current configuration to the prior state and noting any differences.
- Proposing a set of change actions that should, if applied, make the remote objects match the configuration.
```
terraform plan -var-file=<Absolute path of nhn_terraform.json>
```
- Note
  - -var-file : When you use a var-file Sets values for potentially many input variables declared in the root module of the configuration, using definitions from a "tfvars" file. Use this option multiple times to include values from more than one file.
  - The file name of vars.tfvars can be changed.

Executes the actions proposed in a Terraform plan.

terraform apply -var-file=<Absolute path of nhn_terraform.json> -auto-approve

Note
- -auto-approve : Skips interactive approval of plan before applying. This option is ignored when you pass a previously-saved plan file, because Terraform considers you passing the plan file as the approval and so will never prompt in that case.

Name		Name	Last commit message	Last commit date
Latest commit History 35 Commits
images		images
.gitignore		.gitignore
LICENSE		LICENSE
README.md		README.md
create_instance.tf		create_instance.tf
data_resources.tf		data_resources.tf
network.tf		network.tf
outputs.tf		outputs.tf
tls.tf		tls.tf
variables.tf		variables.tf
volumes.tf		volumes.tf

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terraform-nhn-create-instnace-modules

Before You Begin

Prepare

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Attribute Table

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terraform-nhn-create-instnace-modules

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Prepare

Install Terraform

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Start Terraform

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