production-ready/aks/main.tf

resource "azurerm_resource_group" "eic_rg" {
  name = var.resource_group_name
  location = var.default_location
}

resource "azurerm_kubernetes_cluster" "k8s" {
  location            = azurerm_resource_group.rg.location
  name                = random_pet.azurerm_kubernetes_cluster_name.id
  resource_group_name = azurerm_resource_group.rg.name
  dns_prefix          = random_pet.azurerm_kubernetes_cluster_dns_prefix.id

  identity {
    type = "SystemAssigned"
  }

  default_node_pool {
    name       = "agentpool"
    vm_size    = "Standard_D2_v2"
    node_count = var.node_count
  }
  linux_profile {
    admin_username = var.username

    ssh_key {
      key_data = jsondecode(azapi_resource_action.ssh_public_key_gen.output).publicKey
    }
  }
  network_profile {
    network_plugin    = "kubenet"
    load_balancer_sku = "standard"
  }
}

resource "azurerm_network_security_group" "default" {
  name                = "${random_pet.name_prefix.id}-nsg"
  location            = azurerm_resource_group.default.location
  resource_group_name = azurerm_resource_group.default.name

  security_rule {
    name                       = "test123"
    priority                   = 100
    direction                  = "Inbound"
    access                     = "Allow"
    protocol                   = "Tcp"
    source_port_range          = "*"
    destination_port_range     = "*"
    source_address_prefix      = "*"
    destination_address_prefix = "*"
  }
}

resource "azurerm_subnet" "default" {
  name                 = "${random_pet.name_prefix.id}-subnet"
  virtual_network_name = azurerm_virtual_network.default.name
  resource_group_name  = azurerm_resource_group.default.name
  address_prefixes     = ["10.0.2.0/24"]
  service_endpoints    = ["Microsoft.Storage"]

  delegation {
    name = "fs"

    service_delegation {
      name = "Microsoft.DBforPostgreSQL/flexibleServers"

      actions = [
        "Microsoft.Network/virtualNetworks/subnets/join/action",
      ]
    }
  }
}

resource "azurerm_subnet_network_security_group_association" "default" {
  subnet_id                 = azurerm_subnet.default.id
  network_security_group_id = azurerm_network_security_group.default.id
}

resource "azurerm_private_dns_zone" "default" {
  name                = "${random_pet.name_prefix.id}-pdz.postgres.database.azure.com"
  resource_group_name = azurerm_resource_group.default.name

  depends_on = [azurerm_subnet_network_security_group_association.default]
}

resource "azurerm_private_dns_zone_virtual_network_link" "default" {
  name                  = "${random_pet.name_prefix.id}-pdzvnetlink.com"
  private_dns_zone_name = azurerm_private_dns_zone.default.name
  virtual_network_id    = azurerm_virtual_network.default.id
  resource_group_name   = azurerm_resource_group.default.name
}

resource "random_password" "pass" {
  length = 20
}

resource "azurerm_postgresql_flexible_server" "default" {
  name                   = "${random_pet.name_prefix.id}-server"
  resource_group_name    = azurerm_resource_group.default.name
  location               = azurerm_resource_group.default.location
  version                = "13"
  delegated_subnet_id    = azurerm_subnet.default.id
  private_dns_zone_id    = azurerm_private_dns_zone.default.id
  administrator_login    = "adminTerraform"
  administrator_password = random_password.pass.result
  zone                   = "1"
  storage_mb             = 32768
  sku_name               = "GP_Standard_D2s_v3"
  backup_retention_days  = 7

  depends_on = [azurerm_private_dns_zone_virtual_network_link.default]
}