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nacl-public.tf
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nacl-public.tf
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locals {
public_subnet_ip = split("/", element(aws_subnet.public[*].cidr_block, length(aws_subnet.public[*].cidr_block) - 1))[0]
public_subnet_summary = var.vpc_cidr_summ != "/0" ? "${cidrhost("${local.public_subnet_ip}${var.vpc_cidr_summ}", 0)}${var.vpc_cidr_summ}" : aws_vpc.default.cidr_block
}
resource "aws_network_acl" "public" {
vpc_id = aws_vpc.default.id
subnet_ids = aws_subnet.public[*].id
tags = merge(
var.tags,
{
"Name" = format(local.names[var.name_pattern].nacl_public, var.name, local.name_suffix)
"Scheme" = "public"
"EnvName" = var.name
}
)
}
# resource "aws_network_acl_rule" "out_public_local" {
# network_acl_id = aws_network_acl.public.id
# rule_number = 1
# egress = true
# protocol = -1
# rule_action = "allow"
# cidr_block = aws_vpc.default.cidr_block
# from_port = 0
# to_port = 0
# }
resource "aws_network_acl_rule" "in_public_local" {
network_acl_id = aws_network_acl.public.id
rule_number = 1
egress = false
protocol = -1
rule_action = "allow"
cidr_block = aws_vpc.default.cidr_block
from_port = 0
to_port = 0
}
resource "aws_network_acl_rule" "out_public_local" {
network_acl_id = aws_network_acl.public.id
rule_number = 1
egress = true
protocol = -1
rule_action = "allow"
cidr_block = aws_vpc.default.cidr_block
from_port = 0
to_port = 0
}
resource "aws_network_acl_rule" "in_public_tcp" {
count = length(var.public_nacl_inbound_tcp_ports)
network_acl_id = aws_network_acl.public.id
rule_number = count.index + 101
egress = false
protocol = "tcp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = var.public_nacl_inbound_tcp_ports[count.index]
to_port = tonumber(var.public_nacl_inbound_tcp_ports[count.index] == 0 ? "65535" : var.public_nacl_inbound_tcp_ports[count.index])
}
resource "aws_network_acl_rule" "out_public_tcp" {
count = length(var.public_nacl_outbound_tcp_ports)
network_acl_id = aws_network_acl.public.id
rule_number = count.index + 101
egress = true
protocol = "tcp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = var.public_nacl_outbound_tcp_ports[count.index]
to_port = tonumber(var.public_nacl_outbound_tcp_ports[count.index]) == 0 ? "65535" : var.public_nacl_outbound_tcp_ports[count.index]
}
resource "aws_network_acl_rule" "in_public_tcp_return" {
# This is required for internet access
network_acl_id = aws_network_acl.public.id
rule_number = 201
egress = false
protocol = "tcp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = "1024"
to_port = "65535"
}
resource "aws_network_acl_rule" "out_public_tcp_return" {
# This is required inbound access
network_acl_id = aws_network_acl.public.id
rule_number = 201
egress = true
protocol = "tcp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = "1024"
to_port = "65535"
}
resource "aws_network_acl_rule" "in_public_udp" {
count = length(var.public_nacl_inbound_udp_ports)
network_acl_id = aws_network_acl.public.id
rule_number = count.index + 301
egress = false
protocol = "udp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = var.public_nacl_inbound_udp_ports[count.index]
to_port = var.public_nacl_inbound_udp_ports[count.index]
}
resource "aws_network_acl_rule" "out_public_udp" {
count = length(var.public_nacl_inbound_udp_ports)
network_acl_id = aws_network_acl.public.id
rule_number = count.index + 301
egress = true
protocol = "udp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = var.public_nacl_outbound_udp_ports[count.index]
to_port = var.public_nacl_outbound_udp_ports[count.index]
}
resource "aws_network_acl_rule" "in_public_udp_return" {
network_acl_id = aws_network_acl.public.id
rule_number = 401
egress = false
protocol = "udp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
from_port = "1024"
to_port = "65535"
}
resource "aws_network_acl_rule" "in_public_icmp_reply" {
count = var.public_nacl_icmp ? 1 : 0
network_acl_id = aws_network_acl.public.id
rule_number = 501
egress = false
protocol = "icmp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
icmp_type = 0
icmp_code = -1
}
resource "aws_network_acl_rule" "out_public_icmp" {
count = var.public_nacl_icmp ? 1 : 0
network_acl_id = aws_network_acl.public.id
rule_number = 501
egress = true
protocol = "icmp"
rule_action = "allow"
cidr_block = "0.0.0.0/0"
icmp_type = 8
icmp_code = -1
}
resource "aws_network_acl_rule" "in_public_from_private" {
count = var.vpc_cidr_summ != "/0" ? 1 : length(aws_subnet.private[*].cidr_block)
network_acl_id = aws_network_acl.public.id
rule_number = count.index + 601
egress = false
protocol = -1
rule_action = "allow"
cidr_block = var.vpc_cidr_summ != "/0" ? local.private_subnet_summary : aws_subnet.private[count.index].cidr_block
from_port = 0
to_port = 0
}