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# main.tf — GAC compliance fixture
# Produces zero policy violations across all evaluated categories
terraform {
required_providers {
aws = {
source = "hashicorp/aws"
version = "~> 5.0"
}
}
}
locals {
baseline_tags = {
"stack-name" = "gac-compliance-fixture"
"application-name" = "GACFixture"
"project" = "DC-Migration-Project"
"environment" = "dev"
"cost-center-opex" = "271"
"cost-center-capex" = "000"
"data-classification" = "Internal"
"availability-tier" = "Tier 1"
"app-owner" = "Director IT Infrastructure and Platform Engineering"
"team" = "devops"
"assignment-group" = "hca-aws-support"
"owner" = "[email protected]"
"business-unit" = "Infrastructure and Planning"
"managed-by" = "terraform"
}
}
# GAC-025 — Provider with all mandatory default tags
provider "aws" {
region = "ap-south-1"
default_tags {
tags = {
managed-by = "terraform"
}
}
}
# GAC-003 — S3 bucket with versioning enabled
resource "aws_s3_bucket" "good_bucket" {
bucket = "good-gac-bucket"
tags = local.baseline_tags
}
resource "aws_s3_bucket_versioning" "good_versioning" {
bucket = aws_s3_bucket.good_bucket.id
versioning_configuration {
status = "Enabled"
}
}
# GAC-001 / STR-001 — Public access block
resource "aws_s3_bucket_public_access_block" "good_bucket" {
bucket = aws_s3_bucket.good_bucket.id
block_public_acls = true
block_public_policy = true
ignore_public_acls = true
restrict_public_buckets = true
}
# GAC-002 / STR-004 — Server-side encryption
resource "aws_s3_bucket_server_side_encryption_configuration" "good_bucket" {
bucket = aws_s3_bucket.good_bucket.id
rule {
apply_server_side_encryption_by_default {
sse_algorithm = "aws:kms"
kms_master_key_id = "arn:aws:kms:ap-south-1:123456789012:key/abcd1234-a123-456a-a12b-a123b4cd56ef"
}
}
}
# STR-007 — Ownership controls
resource "aws_s3_bucket_ownership_controls" "good_bucket" {
bucket = aws_s3_bucket.good_bucket.id
rule {
object_ownership = "BucketOwnerEnforced"
}
}
# GAC-004 / STR-005 — TLS-only bucket policy
resource "aws_s3_bucket_policy" "good_bucket" {
bucket = aws_s3_bucket.good_bucket.id
policy = jsonencode({
Version = "2012-10-17"
Statement = [{
Sid = "DenyInsecureTransport"
Effect = "Deny"
Principal = "*"
Action = "s3:*"
Resource = [
aws_s3_bucket.good_bucket.arn,
"${aws_s3_bucket.good_bucket.arn}/*"
]
Condition = {
Bool = { "aws:SecureTransport" = "false" }
}
}]
})
}
# GAC-012 — RDS with adequate backup retention (max 35 days)
# GAC-009 / DAT-002 — Storage encryption
# GAC-011 / DAT-004 — Deletion protection
# DAT-003 / LOM-008 — CloudWatch log exports
resource "aws_db_instance" "good_rds" {
identifier = "good-gac-rds"
engine = "mysql"
engine_version = "8.0"
instance_class = "db.t3.micro"
allocated_storage = 20
username = "admin"
password = "Goodpassword123"
skip_final_snapshot = true
backup_retention_period = 35
storage_encrypted = true
deletion_protection = true
enabled_cloudwatch_logs_exports = ["error", "general", "slowquery"]
tags = local.baseline_tags
}
# GAC-014 — IAM policy with scoped permissions
resource "aws_iam_policy" "good_admin_policy" {
name = "good-admin-policy"
policy = jsonencode({
Version = "2012-10-17"
Statement = [{
Effect = "Allow"
Action = ["s3:GetObject", "s3:PutObject"]
Resource = "arn:aws:s3:::good-gac-bucket/*"
}]
})
tags = local.baseline_tags
}
# GAC-015 — IAM role with scoped trust principal and specific action
# IAM-004 — Permissions boundary
resource "aws_iam_role" "good_role" {
name = "good-gac-role"
permissions_boundary = "arn:aws:iam::123456789012:policy/good-permissions-boundary"
assume_role_policy = jsonencode({
Version = "2012-10-17"
Statement = [{
Effect = "Allow"
Principal = { Service = "ec2.amazonaws.com" }
Action = "sts:AssumeRole"
}]
})
tags = local.baseline_tags
}
# GAC-016 — Strong password policy
resource "aws_iam_account_password_policy" "good_password_policy" {
minimum_password_length = 14
require_symbols = true
require_numbers = true
require_uppercase_characters = true
require_lowercase_characters = true
password_reuse_prevention = 24
max_password_age = 90
}
# GAC-022 — CloudFront with modern TLS
resource "aws_cloudfront_distribution" "good_cf" {
enabled = true
default_cache_behavior {
allowed_methods = ["GET", "HEAD"]
cached_methods = ["GET", "HEAD"]
target_origin_id = "good-origin"
viewer_protocol_policy = "redirect-to-https"
forwarded_values {
query_string = false
cookies { forward = "none" }
}
}
viewer_certificate {
acm_certificate_arn = "arn:aws:acm:us-east-1:123456789012:certificate/abc-123"
ssl_support_method = "sni-only"
minimum_protocol_version = "TLSv1.2_2021"
}
origin {
domain_name = "example.com"
origin_id = "good-origin"
custom_origin_config {
http_port = 80
https_port = 443
origin_protocol_policy = "https-only"
origin_ssl_protocols = ["TLSv1.2"]
}
}
restrictions {
geo_restriction { restriction_type = "none" }
}
tags = local.baseline_tags
}
# GAC-023 — EKS with private endpoint only
resource "aws_eks_cluster" "good_eks" {
name = "good-eks"
role_arn = "arn:aws:iam::123456789012:role/eks-role"
vpc_config {
subnet_ids = ["subnet-12345678"]
endpoint_public_access = false
endpoint_private_access = true
}
tags = local.baseline_tags
}
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