ソフトウェアエンジニアの技術ブログ：Software engineer tech blog

$ terraform –version
Terraform v0.14.6
$ mkdir terraform
$ cd ~
.aws/credentials

[default]
AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=

main.tf

provider "aws" {
  profile    = "default"
  region     = "ap-northeast-1"
}

resource "aws_instance" "example" {
    ami = "ami-＊"
    instance_type = "t2.micro"
}

$ terraform plan

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
+ create

Terraform will perform the following actions:

# aws_instance.example will be created
+ resource “aws_instance” “example” {
+ ami = “ami-*”
+ arn = (known after apply)
+ associate_public_ip_address = (known after apply)
+ availability_zone = (known after apply)
+ cpu_core_count = (known after apply)
+ cpu_threads_per_core = (known after apply)
+ get_password_data = false
+ host_id = (known after apply)
+ id = (known after apply)
+ instance_state = (known after apply)
+ instance_type = “t2.micro”
+ ipv6_address_count = (known after apply)
+ ipv6_addresses = (known after apply)
+ key_name = (known after apply)
+ outpost_arn = (known after apply)
+ password_data = (known after apply)
+ placement_group = (known after apply)
+ primary_network_interface_id = (known after apply)
+ private_dns = (known after apply)
+ private_ip = (known after apply)
+ public_dns = (known after apply)
+ public_ip = (known after apply)
+ secondary_private_ips = (known after apply)
+ security_groups = (known after apply)
+ source_dest_check = true
+ subnet_id = (known after apply)
+ tenancy = (known after apply)
+ vpc_security_group_ids = (known after apply)

+ ebs_block_device {
+ delete_on_termination = (known after apply)
+ device_name = (known after apply)
+ encrypted = (known after apply)
+ iops = (known after apply)
+ kms_key_id = (known after apply)
+ snapshot_id = (known after apply)
+ tags = (known after apply)
+ throughput = (known after apply)
+ volume_id = (known after apply)
+ volume_size = (known after apply)
+ volume_type = (known after apply)
}

+ enclave_options {
+ enabled = (known after apply)
}

+ ephemeral_block_device {
+ device_name = (known after apply)
+ no_device = (known after apply)
+ virtual_name = (known after apply)
}

+ metadata_options {
+ http_endpoint = (known after apply)
+ http_put_response_hop_limit = (known after apply)
+ http_tokens = (known after apply)
}

+ network_interface {
+ delete_on_termination = (known after apply)
+ device_index = (known after apply)
+ network_interface_id = (known after apply)
}

+ root_block_device {
+ delete_on_termination = (known after apply)
+ device_name = (known after apply)
+ encrypted = (known after apply)
+ iops = (known after apply)
+ kms_key_id = (known after apply)
+ tags = (known after apply)
+ throughput = (known after apply)
+ volume_id = (known after apply)
+ volume_size = (known after apply)
+ volume_type = (known after apply)
}
}

Plan: 1 to add, 0 to change, 0 to destroy.

————————————————————————

Note: You didn’t specify an “-out” parameter to save this plan, so Terraform
can’t guarantee that exactly these actions will be performed if
“terraform apply” is subsequently run.

$ terraform apply
Error: Error launching source instance: MissingInput: No subnets found for the default VPC ‘vpc-*’. Please specify a subnet.

ちょっとvpcに問題があるので、S3にする

provider "aws" {
  profile    = "default"
  region     = "ap-northeast-1"
}

resource "aws_s3_bucket" "b" {
  bucket = "terraform-test-hpscript"
  acl    = "private"

  tags = {
    Name        = "My bucket"
    Environment = "Dev"
  }
}

$ terraform apply

An execution plan has been generated and is shown below.
Resource actions are indicated with the following symbols:
+ create

Terraform will perform the following actions:

# aws_s3_bucket.b will be created
+ resource “aws_s3_bucket” “b” {
+ acceleration_status = (known after apply)
+ acl = “private”
+ arn = (known after apply)
+ bucket = “terraform-test-hpscript”
+ bucket_domain_name = (known after apply)
+ bucket_regional_domain_name = (known after apply)
+ force_destroy = false
+ hosted_zone_id = (known after apply)
+ id = (known after apply)
+ region = (known after apply)
+ request_payer = (known after apply)
+ tags = {
+ “Environment” = “Dev”
+ “Name” = “My bucket”
}
+ website_domain = (known after apply)
+ website_endpoint = (known after apply)

+ versioning {
+ enabled = (known after apply)
+ mfa_delete = (known after apply)
}
}

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

aws_s3_bucket.b: Creating…
aws_s3_bucket.b: Still creating… [10s elapsed]
aws_s3_bucket.b: Creation complete after 11s [id=terraform-test-hpscript]

なるほど、terraformの意味がわかった。確かに便利だわ。

$ TER_VER=`curl -s https://api.github.com/repos/hashicorp/terraform/releases/latest | grep tag_name | cut -d: -f2 | tr -d \”\,\v | awk ‘{$1=$1};1’`
$ echo ${TER_VER}
0.14.6
$ wget https://releases.hashicorp.com/terraform/${TER_VER}/terraform_${TER_VER}_linux_amd64.zip
$ unzip terraform_${TER_VER}_linux_amd64.zip
$ ls
$ sudo mv terraform /usr/local/bin/
$ terraform –version
Terraform v0.14.6

まじかよーーーー
1分で出来たやんか。。。。とりあえず、S3にbucket作成ぐらいはやっておきたい。