https://dev.classmethod.jp/articles/change-instance-type-on-ec2/
https://docs.aws.amazon.com/ja_jp/AWSEC2/latest/UserGuide/ec2-instance-resize.html
-- 1. VPC、サブネット作成
cat <<-'EOF' > main.tf
provider "aws" {
region = "ap-northeast-1"
}
resource "aws_vpc" "vpc01" {
cidr_block = "10.0.0.0/16"
enable_dns_support = true
enable_dns_hostnames = true
tags = {
Name = "vpc01"
}
}
resource "aws_subnet" "subnet01" {
vpc_id = aws_vpc.vpc01.id
availability_zone = "ap-northeast-1a"
cidr_block = "10.0.0.0/24"
tags = {
Name = "subnet01"
}
}
resource "aws_internet_gateway" "igw01" {
vpc_id = aws_vpc.vpc01.id
tags = {
Name = "igw01"
}
}
resource "aws_route_table" "rt01" {
vpc_id = aws_vpc.vpc01.id
route {
cidr_block = "0.0.0.0/0"
gateway_id = aws_internet_gateway.igw01.id
}
tags = {
Name = "rt01"
}
}
resource "aws_route_table_association" "rt01_subnet01" {
route_table_id = aws_route_table.rt01.id
subnet_id = aws_subnet.subnet01.id
}
resource "aws_security_group" "sg01" {
name ="sg01"
vpc_id = aws_vpc.vpc01.id
ingress {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["10.1.0.0/24"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}
EOF
cat <<-'EOF' > outputs.tf
output "subnet01_id" {
value = aws_subnet.subnet01.id
description = "subnet01.id"
}
output "sg01_id" {
value = aws_security_group.sg01.id
description = "sg01.id"
}
EOF
terraform init
terraform validate
terraform fmt
terraform -version
terraform plan
terraform apply -auto-approve
# terraform destroy -auto-approve
-- 2. EC2インスタンス作成
aws ec2 run-instances \
--image-id ami-031134f7a79b6e424 \
--instance-type t3.nano \
--key-name key1 \
--tag-specifications 'ResourceType=instance,Tags=[{Key=Name,Value=instance01}]' \
--associate-public-ip-address \
--subnet-id subnet-11111111111111111 \
--security-group-ids sg-11111111111111111
aws ec2 describe-instances
aws ec2 describe-instances | jq -r '.Reservations.Instances | { InstanceId, State }'
EC2インスタンスの削除
aws ec2 terminate-instances \
--instance-ids i-11111111111111111
-- 3. インスタンスタイプ変更
EC2インスタンスの停止
aws ec2 stop-instances \
--instance-ids i-11111111111111111
t3.nano -> t3.micro
aws ec2 modify-instance-attribute \
--instance-id i-11111111111111111 \
--instance-type "{\"Value\": \"t3.micro\"}"
EC2インスタンスの起動
aws ec2 start-instances \
--instance-ids i-11111111111111111
