Files
wifi-densepose/terraform/main.tf
2025-06-07 11:44:19 +00:00

784 lines
19 KiB
HCL

# WiFi-DensePose AWS Infrastructure
# This Terraform configuration provisions the AWS infrastructure for WiFi-DensePose
terraform {
required_version = ">= 1.0"
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 5.0"
}
kubernetes = {
source = "hashicorp/kubernetes"
version = "~> 2.20"
}
helm = {
source = "hashicorp/helm"
version = "~> 2.10"
}
random = {
source = "hashicorp/random"
version = "~> 3.1"
}
}
backend "s3" {
bucket = "wifi-densepose-terraform-state"
key = "infrastructure/terraform.tfstate"
region = "us-west-2"
encrypt = true
dynamodb_table = "wifi-densepose-terraform-locks"
}
}
# Configure AWS Provider
provider "aws" {
region = var.aws_region
default_tags {
tags = {
Project = "WiFi-DensePose"
Environment = var.environment
ManagedBy = "Terraform"
Owner = var.owner
}
}
}
# Data sources
data "aws_availability_zones" "available" {
state = "available"
}
data "aws_caller_identity" "current" {}
# Random password for database
resource "random_password" "db_password" {
length = 32
special = true
}
# VPC Configuration
resource "aws_vpc" "main" {
cidr_block = var.vpc_cidr
enable_dns_hostnames = true
enable_dns_support = true
tags = {
Name = "${var.project_name}-vpc"
}
}
# Internet Gateway
resource "aws_internet_gateway" "main" {
vpc_id = aws_vpc.main.id
tags = {
Name = "${var.project_name}-igw"
}
}
# Public Subnets
resource "aws_subnet" "public" {
count = length(var.public_subnet_cidrs)
vpc_id = aws_vpc.main.id
cidr_block = var.public_subnet_cidrs[count.index]
availability_zone = data.aws_availability_zones.available.names[count.index]
map_public_ip_on_launch = true
tags = {
Name = "${var.project_name}-public-subnet-${count.index + 1}"
Type = "Public"
}
}
# Private Subnets
resource "aws_subnet" "private" {
count = length(var.private_subnet_cidrs)
vpc_id = aws_vpc.main.id
cidr_block = var.private_subnet_cidrs[count.index]
availability_zone = data.aws_availability_zones.available.names[count.index]
tags = {
Name = "${var.project_name}-private-subnet-${count.index + 1}"
Type = "Private"
}
}
# NAT Gateway
resource "aws_eip" "nat" {
count = length(aws_subnet.public)
domain = "vpc"
depends_on = [aws_internet_gateway.main]
tags = {
Name = "${var.project_name}-nat-eip-${count.index + 1}"
}
}
resource "aws_nat_gateway" "main" {
count = length(aws_subnet.public)
allocation_id = aws_eip.nat[count.index].id
subnet_id = aws_subnet.public[count.index].id
tags = {
Name = "${var.project_name}-nat-gateway-${count.index + 1}"
}
depends_on = [aws_internet_gateway.main]
}
# Route Tables
resource "aws_route_table" "public" {
vpc_id = aws_vpc.main.id
route {
cidr_block = "0.0.0.0/0"
gateway_id = aws_internet_gateway.main.id
}
tags = {
Name = "${var.project_name}-public-rt"
}
}
resource "aws_route_table" "private" {
count = length(aws_nat_gateway.main)
vpc_id = aws_vpc.main.id
route {
cidr_block = "0.0.0.0/0"
nat_gateway_id = aws_nat_gateway.main[count.index].id
}
tags = {
Name = "${var.project_name}-private-rt-${count.index + 1}"
}
}
# Route Table Associations
resource "aws_route_table_association" "public" {
count = length(aws_subnet.public)
subnet_id = aws_subnet.public[count.index].id
route_table_id = aws_route_table.public.id
}
resource "aws_route_table_association" "private" {
count = length(aws_subnet.private)
subnet_id = aws_subnet.private[count.index].id
route_table_id = aws_route_table.private[count.index].id
}
# Security Groups
resource "aws_security_group" "eks_cluster" {
name_prefix = "${var.project_name}-eks-cluster"
vpc_id = aws_vpc.main.id
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
tags = {
Name = "${var.project_name}-eks-cluster-sg"
}
}
resource "aws_security_group" "eks_nodes" {
name_prefix = "${var.project_name}-eks-nodes"
vpc_id = aws_vpc.main.id
ingress {
from_port = 0
to_port = 65535
protocol = "tcp"
self = true
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
tags = {
Name = "${var.project_name}-eks-nodes-sg"
}
}
resource "aws_security_group" "rds" {
name_prefix = "${var.project_name}-rds"
vpc_id = aws_vpc.main.id
ingress {
from_port = 5432
to_port = 5432
protocol = "tcp"
security_groups = [aws_security_group.eks_nodes.id]
}
tags = {
Name = "${var.project_name}-rds-sg"
}
}
# EKS Cluster
resource "aws_eks_cluster" "main" {
name = "${var.project_name}-cluster"
role_arn = aws_iam_role.eks_cluster.arn
version = var.kubernetes_version
vpc_config {
subnet_ids = concat(aws_subnet.public[*].id, aws_subnet.private[*].id)
endpoint_private_access = true
endpoint_public_access = true
security_group_ids = [aws_security_group.eks_cluster.id]
}
encryption_config {
provider {
key_arn = aws_kms_key.eks.arn
}
resources = ["secrets"]
}
enabled_cluster_log_types = ["api", "audit", "authenticator", "controllerManager", "scheduler"]
depends_on = [
aws_iam_role_policy_attachment.eks_cluster_policy,
aws_iam_role_policy_attachment.eks_vpc_resource_controller,
]
tags = {
Name = "${var.project_name}-eks-cluster"
}
}
# EKS Node Group
resource "aws_eks_node_group" "main" {
cluster_name = aws_eks_cluster.main.name
node_group_name = "${var.project_name}-nodes"
node_role_arn = aws_iam_role.eks_nodes.arn
subnet_ids = aws_subnet.private[*].id
capacity_type = "ON_DEMAND"
instance_types = var.node_instance_types
scaling_config {
desired_size = var.node_desired_size
max_size = var.node_max_size
min_size = var.node_min_size
}
update_config {
max_unavailable = 1
}
remote_access {
ec2_ssh_key = var.key_pair_name
source_security_group_ids = [aws_security_group.eks_nodes.id]
}
depends_on = [
aws_iam_role_policy_attachment.eks_worker_node_policy,
aws_iam_role_policy_attachment.eks_cni_policy,
aws_iam_role_policy_attachment.eks_container_registry_policy,
]
tags = {
Name = "${var.project_name}-eks-nodes"
}
}
# IAM Roles
resource "aws_iam_role" "eks_cluster" {
name = "${var.project_name}-eks-cluster-role"
assume_role_policy = jsonencode({
Statement = [{
Action = "sts:AssumeRole"
Effect = "Allow"
Principal = {
Service = "eks.amazonaws.com"
}
}]
Version = "2012-10-17"
})
}
resource "aws_iam_role_policy_attachment" "eks_cluster_policy" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEKSClusterPolicy"
role = aws_iam_role.eks_cluster.name
}
resource "aws_iam_role_policy_attachment" "eks_vpc_resource_controller" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEKSVPCResourceController"
role = aws_iam_role.eks_cluster.name
}
resource "aws_iam_role" "eks_nodes" {
name = "${var.project_name}-eks-nodes-role"
assume_role_policy = jsonencode({
Statement = [{
Action = "sts:AssumeRole"
Effect = "Allow"
Principal = {
Service = "ec2.amazonaws.com"
}
}]
Version = "2012-10-17"
})
}
resource "aws_iam_role_policy_attachment" "eks_worker_node_policy" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEKSWorkerNodePolicy"
role = aws_iam_role.eks_nodes.name
}
resource "aws_iam_role_policy_attachment" "eks_cni_policy" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEKS_CNI_Policy"
role = aws_iam_role.eks_nodes.name
}
resource "aws_iam_role_policy_attachment" "eks_container_registry_policy" {
policy_arn = "arn:aws:iam::aws:policy/AmazonEC2ContainerRegistryReadOnly"
role = aws_iam_role.eks_nodes.name
}
# KMS Key for EKS encryption
resource "aws_kms_key" "eks" {
description = "EKS Secret Encryption Key"
deletion_window_in_days = 7
enable_key_rotation = true
tags = {
Name = "${var.project_name}-eks-encryption-key"
}
}
resource "aws_kms_alias" "eks" {
name = "alias/${var.project_name}-eks"
target_key_id = aws_kms_key.eks.key_id
}
# RDS Subnet Group
resource "aws_db_subnet_group" "main" {
name = "${var.project_name}-db-subnet-group"
subnet_ids = aws_subnet.private[*].id
tags = {
Name = "${var.project_name}-db-subnet-group"
}
}
# RDS Instance
resource "aws_db_instance" "main" {
identifier = "${var.project_name}-database"
engine = "postgres"
engine_version = var.postgres_version
instance_class = var.db_instance_class
allocated_storage = var.db_allocated_storage
max_allocated_storage = var.db_max_allocated_storage
storage_type = "gp3"
storage_encrypted = true
kms_key_id = aws_kms_key.rds.arn
db_name = var.db_name
username = var.db_username
password = random_password.db_password.result
vpc_security_group_ids = [aws_security_group.rds.id]
db_subnet_group_name = aws_db_subnet_group.main.name
backup_retention_period = var.db_backup_retention_period
backup_window = "03:00-04:00"
maintenance_window = "sun:04:00-sun:05:00"
skip_final_snapshot = false
final_snapshot_identifier = "${var.project_name}-final-snapshot-${formatdate("YYYY-MM-DD-hhmm", timestamp())}"
performance_insights_enabled = true
monitoring_interval = 60
monitoring_role_arn = aws_iam_role.rds_monitoring.arn
tags = {
Name = "${var.project_name}-database"
}
}
# KMS Key for RDS encryption
resource "aws_kms_key" "rds" {
description = "RDS Encryption Key"
deletion_window_in_days = 7
enable_key_rotation = true
tags = {
Name = "${var.project_name}-rds-encryption-key"
}
}
resource "aws_kms_alias" "rds" {
name = "alias/${var.project_name}-rds"
target_key_id = aws_kms_key.rds.key_id
}
# RDS Monitoring Role
resource "aws_iam_role" "rds_monitoring" {
name = "${var.project_name}-rds-monitoring-role"
assume_role_policy = jsonencode({
Statement = [{
Action = "sts:AssumeRole"
Effect = "Allow"
Principal = {
Service = "monitoring.rds.amazonaws.com"
}
}]
Version = "2012-10-17"
})
}
resource "aws_iam_role_policy_attachment" "rds_monitoring" {
policy_arn = "arn:aws:iam::aws:policy/service-role/AmazonRDSEnhancedMonitoringRole"
role = aws_iam_role.rds_monitoring.name
}
# ElastiCache Subnet Group
resource "aws_elasticache_subnet_group" "main" {
name = "${var.project_name}-cache-subnet-group"
subnet_ids = aws_subnet.private[*].id
tags = {
Name = "${var.project_name}-cache-subnet-group"
}
}
# ElastiCache Redis Cluster
resource "aws_elasticache_replication_group" "main" {
replication_group_id = "${var.project_name}-redis"
description = "Redis cluster for WiFi-DensePose"
node_type = var.redis_node_type
port = 6379
parameter_group_name = "default.redis7"
num_cache_clusters = var.redis_num_cache_nodes
automatic_failover_enabled = var.redis_num_cache_nodes > 1
multi_az_enabled = var.redis_num_cache_nodes > 1
subnet_group_name = aws_elasticache_subnet_group.main.name
security_group_ids = [aws_security_group.redis.id]
at_rest_encryption_enabled = true
transit_encryption_enabled = true
auth_token = random_password.redis_auth_token.result
snapshot_retention_limit = 5
snapshot_window = "03:00-05:00"
tags = {
Name = "${var.project_name}-redis"
}
}
# Redis Security Group
resource "aws_security_group" "redis" {
name_prefix = "${var.project_name}-redis"
vpc_id = aws_vpc.main.id
ingress {
from_port = 6379
to_port = 6379
protocol = "tcp"
security_groups = [aws_security_group.eks_nodes.id]
}
tags = {
Name = "${var.project_name}-redis-sg"
}
}
# Redis Auth Token
resource "random_password" "redis_auth_token" {
length = 32
special = false
}
# S3 Bucket for application data
resource "aws_s3_bucket" "app_data" {
bucket = "${var.project_name}-app-data-${random_id.bucket_suffix.hex}"
tags = {
Name = "${var.project_name}-app-data"
}
}
resource "random_id" "bucket_suffix" {
byte_length = 4
}
resource "aws_s3_bucket_versioning" "app_data" {
bucket = aws_s3_bucket.app_data.id
versioning_configuration {
status = "Enabled"
}
}
resource "aws_s3_bucket_encryption" "app_data" {
bucket = aws_s3_bucket.app_data.id
server_side_encryption_configuration {
rule {
apply_server_side_encryption_by_default {
kms_master_key_id = aws_kms_key.s3.arn
sse_algorithm = "aws:kms"
}
}
}
}
resource "aws_s3_bucket_public_access_block" "app_data" {
bucket = aws_s3_bucket.app_data.id
block_public_acls = true
block_public_policy = true
ignore_public_acls = true
restrict_public_buckets = true
}
# KMS Key for S3 encryption
resource "aws_kms_key" "s3" {
description = "S3 Encryption Key"
deletion_window_in_days = 7
enable_key_rotation = true
tags = {
Name = "${var.project_name}-s3-encryption-key"
}
}
resource "aws_kms_alias" "s3" {
name = "alias/${var.project_name}-s3"
target_key_id = aws_kms_key.s3.key_id
}
# CloudWatch Log Groups
resource "aws_cloudwatch_log_group" "eks_cluster" {
name = "/aws/eks/${aws_eks_cluster.main.name}/cluster"
retention_in_days = var.log_retention_days
kms_key_id = aws_kms_key.cloudwatch.arn
tags = {
Name = "${var.project_name}-eks-logs"
}
}
# KMS Key for CloudWatch encryption
resource "aws_kms_key" "cloudwatch" {
description = "CloudWatch Logs Encryption Key"
deletion_window_in_days = 7
enable_key_rotation = true
policy = jsonencode({
Statement = [
{
Sid = "Enable IAM User Permissions"
Effect = "Allow"
Principal = {
AWS = "arn:aws:iam::${data.aws_caller_identity.current.account_id}:root"
}
Action = "kms:*"
Resource = "*"
},
{
Sid = "Allow CloudWatch Logs"
Effect = "Allow"
Principal = {
Service = "logs.${var.aws_region}.amazonaws.com"
}
Action = [
"kms:Encrypt",
"kms:Decrypt",
"kms:ReEncrypt*",
"kms:GenerateDataKey*",
"kms:DescribeKey"
]
Resource = "*"
}
]
Version = "2012-10-17"
})
tags = {
Name = "${var.project_name}-cloudwatch-encryption-key"
}
}
resource "aws_kms_alias" "cloudwatch" {
name = "alias/${var.project_name}-cloudwatch"
target_key_id = aws_kms_key.cloudwatch.key_id
}
# Application Load Balancer
resource "aws_lb" "main" {
name = "${var.project_name}-alb"
internal = false
load_balancer_type = "application"
security_groups = [aws_security_group.alb.id]
subnets = aws_subnet.public[*].id
enable_deletion_protection = var.environment == "production"
access_logs {
bucket = aws_s3_bucket.alb_logs.bucket
prefix = "alb-logs"
enabled = true
}
tags = {
Name = "${var.project_name}-alb"
}
}
# ALB Security Group
resource "aws_security_group" "alb" {
name_prefix = "${var.project_name}-alb"
vpc_id = aws_vpc.main.id
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 443
to_port = 443
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 = "${var.project_name}-alb-sg"
}
}
# S3 Bucket for ALB logs
resource "aws_s3_bucket" "alb_logs" {
bucket = "${var.project_name}-alb-logs-${random_id.bucket_suffix.hex}"
tags = {
Name = "${var.project_name}-alb-logs"
}
}
resource "aws_s3_bucket_policy" "alb_logs" {
bucket = aws_s3_bucket.alb_logs.id
policy = jsonencode({
Statement = [
{
Effect = "Allow"
Principal = {
AWS = "arn:aws:iam::${data.aws_elb_service_account.main.id}:root"
}
Action = "s3:PutObject"
Resource = "${aws_s3_bucket.alb_logs.arn}/alb-logs/AWSLogs/${data.aws_caller_identity.current.account_id}/*"
},
{
Effect = "Allow"
Principal = {
Service = "delivery.logs.amazonaws.com"
}
Action = "s3:PutObject"
Resource = "${aws_s3_bucket.alb_logs.arn}/alb-logs/AWSLogs/${data.aws_caller_identity.current.account_id}/*"
Condition = {
StringEquals = {
"s3:x-amz-acl" = "bucket-owner-full-control"
}
}
},
{
Effect = "Allow"
Principal = {
Service = "delivery.logs.amazonaws.com"
}
Action = "s3:GetBucketAcl"
Resource = aws_s3_bucket.alb_logs.arn
}
]
Version = "2012-10-17"
})
}
data "aws_elb_service_account" "main" {}
# Secrets Manager for application secrets
resource "aws_secretsmanager_secret" "app_secrets" {
name = "${var.project_name}-app-secrets"
description = "Application secrets for WiFi-DensePose"
recovery_window_in_days = 7
kms_key_id = aws_kms_key.secrets.arn
tags = {
Name = "${var.project_name}-app-secrets"
}
}
resource "aws_secretsmanager_secret_version" "app_secrets" {
secret_id = aws_secretsmanager_secret.app_secrets.id
secret_string = jsonencode({
database_url = "postgresql://${aws_db_instance.main.username}:${random_password.db_password.result}@${aws_db_instance.main.endpoint}/${aws_db_instance.main.db_name}"
redis_url = "redis://:${random_password.redis_auth_token.result}@${aws_elasticache_replication_group.main.primary_endpoint_address}:6379"
secret_key = random_password.app_secret_key.result
jwt_secret = random_password.jwt_secret.result
})
}
# Additional random passwords
resource "random_password" "app_secret_key" {
length = 64
special = true
}
resource "random_password" "jwt_secret" {
length = 64
special = true
}
# KMS Key for Secrets Manager
resource "aws_kms_key" "secrets" {
description = "Secrets Manager Encryption Key"
deletion_window_in_days = 7
enable_key_rotation = true
tags = {
Name = "${var.project_name}-secrets-encryption-key"
}
}
resource "aws_kms_alias" "secrets" {
name = "alias/${var.project_name}-secrets"
target_key_id = aws_kms_key.secrets.key_id
}