# Variables
# =====================

variable "name" {
  type = string
  description = "Network name"
}

variable "mode" {
  description = "Network mode (route|nat)"
  type = string
  default = "nat"
}

variable "bridge" {
  description = "Network interface name (16 char max, virbr_)"
  type = string
}

variable "domain" {
  description = "Network domain"
  type = string
  default = "local"
}

variable "gw4" {
  description = "Network address"
  type = string
  default = "192.168.0.1"
}

variable "mask" {
  description = "Netmask of the network"
  type = number
  default = 24
}


#
variable "nat_enable" {
  description = "Enable NAT from outside of libvirt"
  type = bool
  default = false
}

variable "nat_driver" {
  description = "Default NAT driver"
  type = string
  default = "ferm"
}

variable "nat_device" {
  description = "Device to forward unrouted traffic (ie: eth0)"
  type = string
  default = "enp1s0"
}


#
variable "vip" {
  description = "List of vips"
  type = list
  default = []
}

variable "subnets" {
  description = "List of subnets"
  type = list
  default = []
}


# Resources
# =====================

resource "libvirt_network" "netdef" {
  name = var.name
  mode = var.mode
  bridge = var.bridge
  domain = var.domain
  addresses = ["${var.gw4}/${var.mask}"]
  autostart = true

  dns {
    enabled = true
    local_only = true

    hosts  {
        hostname = "gw"
        ip = cidrhost("${var.gw4}/${var.mask}", 1)
      }

    dynamic  "hosts" {
      for_each = var.vip
      content {
        hostname = try(hosts.value.hostname)
        ip = try(hosts.value.ip)
      }
    }
  }
}


# Tests
# =====================

# resource "consul_keys" "app" {
#   count = var.nat_enable ? 1 : 0
# 
#   depends_on = [libvirt_network.netdef]
#   key {
#     path  = "tests/net/${var.bridge}/nat"
#     value = "${var.nat_device} - ${ var.nat_enable }"
#     delete = true
#   }
# }

# TMP DISABVLED, require ferm first resource "ssh_resource" "nat_config" {
# TMP DISABVLED, require ferm first   count = var.nat_enable ? 1 : 0
# TMP DISABVLED, require ferm first 
# TMP DISABVLED, require ferm first   host              = "192.168.142.10"
# TMP DISABVLED, require ferm first   user              = "root"
# TMP DISABVLED, require ferm first   agent             = true
# TMP DISABVLED, require ferm first 
# TMP DISABVLED, require ferm first   depends_on = [libvirt_network.netdef]
# TMP DISABVLED, require ferm first 
# TMP DISABVLED, require ferm first   file {
# TMP DISABVLED, require ferm first     content = templatefile("${path.module}/templates/ferm_nat.tpl", {
# TMP DISABVLED, require ferm first       device       = "${var.nat_device}"
# TMP DISABVLED, require ferm first       driver       = "${var.nat_driver}"
# TMP DISABVLED, require ferm first     })
# TMP DISABVLED, require ferm first     destination = "/etc/libvirt/hooks/state/net/${var.bridge}_nat.ini"
# TMP DISABVLED, require ferm first     permissions = "0644"
# TMP DISABVLED, require ferm first   }
# TMP DISABVLED, require ferm first }
 
# resource "ssh_resource" "ipvs_config" {
#   count = var.nat_enable ? 1 : 0
# 
#   host              = "192.168.142.10"
#   user              = "root"
#   agent             = true
# 
#   depends_on = [libvirt_network.netdef]
# 
#   file {
#     content = templatefile("${path.module}/templates/ipvs_config.tpl", {
#       vips        = var.vip
#     })
#     destination = "/etc/libvirt/hooks/state/net/${var.bridge}_ipvs.ini"
#     permissions = "0644"
#   }
# }


# Output
# =====================

output "networks" {
  value = resource.libvirt_network.netdef
}

output "subnets" {
  value = var.subnets
}

output "vips" {
  value = var.vip
}