avx-pmarie-aws-infra/infra/config.hcl

locals {
  # Common tags
  environment = "dev"
  source      = "terraform"
  repository  = "avx-pmarie-aws-infra"

  # VPC
  vpc_name = "avx-pmarie-aws-infra-vpc"
  cidr     = "10.88.0.0/16"

  azs             = ["eu-west-3a", "eu-west-3b"]
  private_subnets = ["10.88.0.0/24", "10.88.1.0/24"]
  public_subnets  = ["10.88.128.0/24", "10.88.129.0/24"]

  enable_nat_gateway = true
  enable_vpn_gateway = false

  # EKS
  eks_cluster_name    = "avx-pmarie-eks"
  eks_cluster_version = "1.22"
  enable_irsa         = true

  # EKS addons
  cluster_addons = {
    coredns = {
      resolve_conflicts = "OVERWRITE"
      addon_version     = "v1.8.7-eksbuild.4"
    }
    kube-proxy = {
      resolve_conflicts = "OVERWRITE"
      addon_version     = "v1.22.17-eksbuild.2"
    }
    vpc-cni = {
      resolve_conflicts = "OVERWRITE"
      addon_version     = "v1.12.6-eksbuild.1"
    }

    aws-ebs-csi-driver = {
      resolve_conflicts = "OVERWRITE"
      addon_version = "v1.17.0-eksbuild.1"
    }
  }

  # EKS addon CSI EBS; This is obsolete and should be removed.
  eks_addon_versions = {
    aws-ebs-csi-driver = "v1.17.0-eksbuild.1"
  }

  node_group_defaults = {
    disk_size      = 50
    instance_types = ["t3.small"]
  }

  node_groups = {
    "eks-${local.environment}" = {
      min_size     = 1
      max_size     = 10
      desired_size = 3

      bootstrap_extra_args = "--container-runtime containerd"

      instance_types = ["t3.small"]
      tags = {
        environment = local.environment
        repository  = local.repository
        source      = local.source
      }
    }
  }

  eks_cluster_security_group_additional_rules = {
    egress_nodes_ephemeral_ports_tcp = {
      description                = "Validation webhooks"
      protocol                   = "tcp"
      from_port                  = 1024
      to_port                    = 65535
      type                       = "egress"
      source_node_security_group = true
    }
  }

  eks_node_security_group_additional_rules = {
    ingress_cluster_api_validation_webhooks = {
      description                   = "Control Plane to webhooks"
      protocol                      = "tcp"
      from_port                     = 1024
      to_port                       = 65535
      type                          = "ingress"
      source_cluster_security_group = true
    }
    ingress_self_all = {
      description = "Node to node all ports/protocols"
      protocol    = "-1"
      from_port   = 0
      to_port     = 0
      type        = "ingress"
      self        = true
    }
    egress_all = {
      description      = "Node all egress"
      protocol         = "-1"
      from_port        = 0
      to_port          = 0
      type             = "egress"
      cidr_blocks      = ["0.0.0.0/0"]
      ipv6_cidr_blocks = ["::/0"]
    }
  }

  # EKS aws auth
  eks_aws_auth_additional_roles = [{
    rolearn  = "arn:aws:iam::563042046245:role/AWSReservedSSO_SubAccountAdmin_6abfb8362d0dfbc0"
    username = "sre-admins"
    groups   = ["system:masters"]
    }, {
    rolearn  = "arn:aws:iam::${get_aws_account_id()}:role/k8s_admin"
    username = "admins"
    groups   = ["system:masters"]
  }]

  # AWS load balancer
  aws_load_balancer_service_account_name = "aws-load-balancer"
  aws_load_balancer_namespace            = "aws-load-balancer"
  aws_load_balancer_iam_role_prefix      = "AWSLoadBalancerController"

  # DNS
  dns_public_domain  = "aws.mkz.me"
  dns_private_domain = "aws-priv.mkz.me"

  # Ingress
  eks_ingress_controller = {
    namespace          = "nginx-ingress"
    create_namespace   = true
    enable_internal_lb = true
    ingress_config = {
      use-proxy-protocol         = false
      proxy-real-ip-cidr         = "0.0.0.0/0"
      use-forwarded-headers      = false
      compute-full-forwarded-for = false
    }
    load_balancer_config = {
      public = {
        dns_record                        = "*"
        backend-protocol                  = "tcp"
        connection-idle-timeout           = "60"
        cross-zone-load-balancing-enabled = true
        type                              = "nlb"
        proxy-protocol                    = ""
        nlb-target-type                   = ""
        eip-allocations                   = ""
      }
      internal = {
        dns_record                        = "*"
        backend-protocol                  = "tcp"
        connection-idle-timeout           = "60"
        cross-zone-load-balancing-enabled = true
        type                              = "nlb"
        proxy-protocol                    = ""
        nlb-target-type                   = ""
        eip-allocations                   = ""
      }
    }
  }

  elastic_ips = {
    "eks_public_nlb" = {
      count = length(local.azs)
      vpc   = true
      tags = {
        cluster = local.eks_cluster_name
        usage   = "eks_public_nlb"
      }
    }
  }
}