resource "aws_vpc" "main" {
cidr_block = "10.1.0.0/16"
enable_dns_hostnames = true
enable_dns_support = true
tags = {
Name = "wsi-vpc"
}
}
# Public
## Internet Gateway
resource"aws_internet_gateway" "main" {
vpc_id = aws_vpc.main.id
tags = {
Name = "wsi-igw"
}
}
## Route Table
resource "aws_route_table" "public" {
vpc_id = aws_vpc.main.id
tags = {
Name = "wsi-public-rt"
}
}
resource "aws_route" "public" {
route_table_id = aws_route_table.public.id
destination_cidr_block = "0.0.0.0/0"
gateway_id = aws_internet_gateway.main.id
}
## Public Subnet
resource "aws_subnet" "public_a" {
vpc_id = aws_vpc.main.id
cidr_block = "10.1.2.0/24"
availability_zone = "ap-northeast-2a"
map_public_ip_on_launch = true
tags = {
Name = "wsi-public-a"
}
}
resource "aws_subnet" "public_b" {
vpc_id = aws_vpc.main.id
cidr_block = "10.1.3.0/24"
availability_zone = "ap-northeast-2b"
map_public_ip_on_launch = true
tags = {
Name = "wsi-public-b"
}
}
## Attach Public Subnet in Route Table
resource "aws_route_table_association" "public_a" {
subnet_id = aws_subnet.public_a.id
route_table_id = aws_route_table.public.id
}
resource "aws_route_table_association" "public_b" {
subnet_id = aws_subnet.public_b.id
route_table_id = aws_route_table.public.id
}
# app
## Elastic IP
resource "aws_eip" "app_a" {
}
resource "aws_eip" "app_b" {
}
## NAT Gateway
resource "aws_nat_gateway" "app_a" {
depends_on = [aws_internet_gateway.main]
allocation_id = aws_eip.app_a.id
subnet_id = aws_subnet.public_a.id
tags = {
Name = "wsi-natgw-a"
}
}
resource "aws_nat_gateway" "app_b" {
depends_on = [aws_internet_gateway.main]
allocation_id = aws_eip.app_b.id
subnet_id = aws_subnet.public_b.id
tags = {
Name = "wsi-natgw-b"
}
}
## Route Table
resource "aws_route_table" "app_a" {
vpc_id = aws_vpc.main.id
tags = {
Name = "wsi-app-a-rt"
}
}
resource "aws_route_table" "app_b" {
vpc_id = aws_vpc.main.id
tags = {
Name = "wsi-app-b-rt"
}
}
resource "aws_route" "app_a" {
route_table_id = aws_route_table.app_a.id
destination_cidr_block = "0.0.0.0/0"
nat_gateway_id = aws_nat_gateway.app_a.id
}
resource "aws_route" "app_b" {
route_table_id = aws_route_table.app_b.id
destination_cidr_block = "0.0.0.0/0"
nat_gateway_id = aws_nat_gateway.app_b.id
}
resource "aws_subnet" "app_a" {
vpc_id = aws_vpc.main.id
cidr_block = "10.1.0.0/24"
availability_zone = "ap-northeast-2a"
tags = {
Name = "wsi-app-a"
}
}
resource "aws_subnet" "app_b" {
vpc_id = aws_vpc.main.id
cidr_block = "10.1.1.0/24"
availability_zone = "ap-northeast-2b"
tags = {
Name = "wsi-app-b"
}
}
## Attach app Subnet in Route Table
resource "aws_route_table_association" "app_a" {
subnet_id = aws_subnet.app_a.id
route_table_id = aws_route_table.app_a.id
}
resource "aws_route_table_association" "app_b" {
subnet_id = aws_subnet.app_b.id
route_table_id = aws_route_table.app_b.id
}
# data
#Route Table
resource "aws_route_table" "data" {
vpc_id = aws_vpc.main.id
tags = {
Name = "wsi-data-rt"
}
}
## data Subnet
resource "aws_subnet" "data_a" {
vpc_id = aws_vpc.main.id
cidr_block = "10.1.4.0/24"
availability_zone = "ap-northeast-2a"
tags = {
Name = "wsi-data-a"
}
}
resource "aws_subnet" "data_b" {
vpc_id = aws_vpc.main.id
cidr_block = "10.1.5.0/24"
availability_zone = "ap-northeast-2b"
tags = {
Name = "wsi-data-b"
}
}
## Attach data Subnet in Route Table
resource "aws_route_table_association" "data_a" {
subnet_id = aws_subnet.data_a.id
route_table_id = aws_route_table.data.id
}
resource "aws_route_table_association" "data_b" {
subnet_id = aws_subnet.data_b.id
route_table_id = aws_route_table.data.id
}
# EC2
## AMI
data "aws_ssm_parameter" "latest_ami" {
name = "/aws/service/ami-amazon-linux-latest/al2023-ami-minimal-kernel-default-x86_64"
}
## Keypair
resource "tls_private_key" "rsa" {
algorithm = "RSA"
rsa_bits = 4096
}
resource "aws_key_pair" "keypair" {
key_name = "wsi"
public_key = tls_private_key.rsa.public_key_openssh
}
resource "local_file" "keypair" {
content = tls_private_key.rsa.private_key_pem
filename = "./wsi.pem"
}
## Public EC2
resource "aws_instance" "bastion" {
ami = data.aws_ssm_parameter.latest_ami.value
subnet_id = aws_subnet.public_a.id
instance_type = "t3.small"
key_name = aws_key_pair.keypair.key_name
vpc_security_group_ids = [aws_security_group.bastion.id]
associate_public_ip_address = true
iam_instance_profile = aws_iam_instance_profile.bastion.name
user_data = <<-EOF
#!/bin/bash
yum update -y
yum install -y jq curl wget zip
curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
unzip awscliv2.zip
sudo ./aws/install
ln -s /usr/local/bin/aws /usr/bin/
ln -s /usr/local/bin/aws_completer /usr/bin/
sed -i "s|#PasswordAuthentication no|PasswordAuthentication yes|g" /etc/ssh/sshd_config
echo "Port 4272" >> /etc/ssh/sshd_config
systemctl restart sshd
echo 'Skill53!@#' | passwd --stdin ec2-user
echo 'Skill53!@#' | passwd --stdin root
curl --silent --location "https://github.com/weaveworks/eksctl/releases/latest/download/eksctl_$(uname -s)_amd64.tar.gz" | tar xz -C /tmp
sudo mv /tmp/eksctl /usr/local/bin
curl -O https://s3.us-west-2.amazonaws.com/amazon-eks/1.29.3/2024-04-19/bin/linux/amd64/kubectl
chmod +x kubectl
mv kubectl /usr/local/bin
curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3
chmod 700 get_helm.sh
./get_helm.sh
mv get_helm.sh /usr/local/bin
yum install -y docker
systemctl enable --now docker
usermod -aG docker ec2-user
usermod -aG docker root
chmod 666 /var/run/docker.sock
EOF
tags = {
Name = "wsi-bastion"
}
}
## Public Security Group
resource "aws_security_group" "bastion" {
name = "wsi-bastion-sg"
vpc_id = aws_vpc.main.id
ingress {
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
from_port = "4272"
to_port = "4272"
}
egress {
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
from_port = "80"
to_port = "80"
}
egress {
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
from_port = "443"
to_port = "443"
}
tags = {
Name = "wsi-bastion-sg"
}
}
## IAM
resource "aws_iam_role" "bastion" {
name = "wsi-bastion-role"
assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [
{
Action = "sts:AssumeRole"
Effect = "Allow"
Sid = ""
Principal = {
Service = "ec2.amazonaws.com"
}
}
]
})
managed_policy_arns = ["arn:aws:iam::aws:policy/AdministratorAccess"]
}
resource "aws_iam_instance_profile" "bastion" {
name = "wsi-profile-bastion"
role = aws_iam_role.bastion.name
}
# OutPut
## VPC
output "aws_vpc" {
value = aws_vpc.main.id
}
## Public Subnet
output "public_a" {
value = aws_subnet.public_a.id
}
output "public_b" {
value = aws_subnet.public_b.id
}
## app Subnet
output "app_a" {
value = aws_subnet.app_a.id
}
output "app_b" {
value = aws_subnet.app_b.id
}
output "data_a" {
value = aws_subnet.data_a.id
}
output "data_b" {
value = aws_subnet.data_b.id
}
output "bastion" {
value = aws_instance.bastion.public_ip
}
output "bastion-sg" {
value = aws_security_group.bastion.id
}
JSON
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