nat-gateway.tf

#Copyright 2019 Fairwinds Inc.
#
#Licensed under the Apache License, Version 2.0 (the “License”);
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an “AS IS” BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.

resource "aws_nat_gateway" "nat_gateway" {
  count         = var.multi_az_nat_gateway * var.az_count + var.single_nat_gateway * 1
  subnet_id     = element(aws_subnet.public.*.id, count.index)
  allocation_id = element(aws_eip.mod_nat.*.id, count.index)
  tags          = var.global_tags
  depends_on = [
    aws_internet_gateway.default,
    aws_eip.mod_nat,
    aws_subnet.public,
  ]
  lifecycle {
    ignore_changes = [tags]
  }
}

output "aws_nat_gateway_count" {
  value = length(aws_nat_gateway.nat_gateway.*.id)
}

output "aws_nat_gateway_ids" {
  value = aws_nat_gateway.nat_gateway.*.id
}