vpc.tf

module "vpc" {
  source  = "terraform-aws-modules/vpc/aws"
  version = "3.19.0"

  name = "casuls-vpc"

  cidr = "10.0.0.0/16"
  azs  = slice(data.aws_availability_zones.available.names, 0, 3)

  private_subnets     = ["10.0.1.0/24", "10.0.2.0/24", "10.0.3.0/24"]
  public_subnets      = ["10.0.4.0/24", "10.0.5.0/24", "10.0.6.0/24"]
  database_subnets    = ["10.0.21.0/24", "10.0.22.0/24"]
  elasticache_subnets = ["10.0.31.0/24", "10.0.32.0/24"]

  enable_nat_gateway      = true
  single_nat_gateway      = true
  enable_dns_hostnames    = true
  enable_dns_support      = true
  map_public_ip_on_launch = false

  # VPC Flow Logs (Cloudwatch log group and IAM role will be created)
  enable_flow_log                      = true
  create_flow_log_cloudwatch_log_group = true
  create_flow_log_cloudwatch_iam_role  = true
  flow_log_max_aggregation_interval    = 60
}