provider "aws" {
region = "ap-northeast-1"
}
resource "aws_vpc" "demo_vpc_main" {
cidr_block = "10.9.0.0/16"
enable_dns_support = true
enable_dns_hostnames = true
tags = {
Name = "demo_vpc_main"
}
}
resource "aws_subnet" "demo_subnet_public_1" {
vpc_id = aws_vpc.demo_vpc_main.id
cidr_block = "10.9.1.0/24"
map_public_ip_on_launch = true
availability_zone = "ap-northeast-1a"
tags = {
Name = "demo_subnet_public_1"
}
}
resource "aws_subnet" "demo_subnet_public_2" {
vpc_id = aws_vpc.demo_vpc_main.id
cidr_block = "10.9.2.0/24"
map_public_ip_on_launch = true
availability_zone = "ap-northeast-1c"
tags = {
Name = "demo_subnet_public_2"
}
}
resource "aws_internet_gateway" "demo_igw_main" {
vpc_id = aws_vpc.demo_vpc_main.id
tags = {
Name = "demo_igw_main"
}
}
resource "aws_route_table" "demo_route_table_main" {
vpc_id = aws_vpc.demo_vpc_main.id
route {
cidr_block = "0.0.0.0/0"
gateway_id = aws_internet_gateway.demo_igw_main.id
}
tags = {
Name = "demo_route_table_main"
}
}
resource "aws_route_table_association" "demo_assoc_public_1" {
subnet_id = aws_subnet.demo_subnet_public_1.id
route_table_id = aws_route_table.demo_route_table_main.id
}
resource "aws_route_table_association" "demo_assoc_public_2" {
subnet_id = aws_subnet.demo_subnet_public_2.id
route_table_id = aws_route_table.demo_route_table_main.id
}
resource "aws_security_group" "demo_sg_web" {
vpc_id = aws_vpc.demo_vpc_main.id
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
tags = {
Name = "demo_sg_web"
}
}
resource "aws_instance" "demo_web_1" {
ami = "ami-0f75d1a8c9141bd00"
instance_type = "t2.micro"
subnet_id = aws_subnet.demo_subnet_public_1.id
security_groups = [aws_security_group.demo_sg_web.id]
user_data = <<-EOF
#!/bin/bash
yum update -y
yum install -y httpd
echo "Terraformで作成されたWebサーバ１
" > /var/www/html/index.html
systemctl enable httpd
systemctl start httpd
EOF
tags = {
Name = "demo_web_1"
}
}
resource "aws_instance" "demo_web_2" {
ami = "ami-0f75d1a8c9141bd00"
instance_type = "t2.micro"
subnet_id = aws_subnet.demo_subnet_public_2.id
security_groups = [aws_security_group.demo_sg_web.id]
user_data = <<-EOF
#!/bin/bash
yum update -y
yum install -y httpd
echo "Terraformで作成されたWebサーバ２
" > /var/www/html/index.html
systemctl enable httpd
systemctl start httpd
EOF
tags = {
Name = "demo_web_2"
}
}
resource "aws_lb" "demo_lb_main" {
name = "demo-lb-main"
internal = false
load_balancer_type = "application"
security_groups = [aws_security_group.demo_sg_web.id]
subnets = [
aws_subnet.demo_subnet_public_1.id,
aws_subnet.demo_subnet_public_2.id
]
tags = {
Name = "demo_lb_main"
}
}
resource "aws_lb_target_group" "demo_tg_web" {
name = "demo-tg-web"
port = 80
protocol = "HTTP"
vpc_id = aws_vpc.demo_vpc_main.id
tags = {
Name = "demo_tg_web"
}
}
resource "aws_lb_target_group_attachment" "demo_attach_web_1" {
target_group_arn = aws_lb_target_group.demo_tg_web.arn
target_id = aws_instance.demo_web_1.id
port = 80
}
resource "aws_lb_target_group_attachment" "demo_attach_web_2" {
target_group_arn = aws_lb_target_group.demo_tg_web.arn
target_id = aws_instance.demo_web_2.id
port = 80
}
resource "aws_lb_listener" "demo_listener_http" {
load_balancer_arn = aws_lb.demo_lb_main.arn
port = 80
protocol = "HTTP"
default_action {
type = "forward"
target_group_arn = aws_lb_target_group.demo_tg_web.arn
}
}