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* Creates a network ACL with ocnfigurable rules * If egress/ingress lockdown is enabled, all traffic will be blocked by default * The ACL is applied to all the subnets created in the infrastructure
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resource "aws_default_network_acl" "infrastructure" { | ||
count = local.infrastructure_vpc ? 1 : 0 | ||
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default_network_acl_id = aws_vpc.infrastructure[0].default_network_acl_id | ||
} | ||
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resource "aws_network_acl" "infrastructure" { | ||
count = local.infrastructure_vpc ? 1 : 0 | ||
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vpc_id = aws_vpc.infrastructure[0].id | ||
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tags = { | ||
Name = "${local.resource_prefix}-infrastructure" | ||
} | ||
} | ||
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resource "aws_network_acl_association" "infrastructure_public_subnets" { | ||
for_each = local.infrastructure_vpc && local.infrastructure_vpc_network_enable_public ? aws_subnet.infrastructure_public : {} | ||
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network_acl_id = aws_network_acl.infrastructure[0].id | ||
subnet_id = each.value.id | ||
} | ||
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resource "aws_network_acl_association" "infrastructure_private_subnets" { | ||
for_each = local.infrastructure_vpc && local.infrastructure_vpc_network_enable_private ? aws_subnet.infrastructure_private : {} | ||
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network_acl_id = aws_network_acl.infrastructure[0].id | ||
subnet_id = each.value.id | ||
} | ||
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#This will only be used if `infrastructure_vpc_network_acl_egress_lockdown` isn't set | ||
#We would want to allow all traffic for debugging purposes | ||
#tfsec:ignore:aws-ec2-no-excessive-port-access | ||
resource "aws_network_acl_rule" "egress_allow_all" { | ||
count = local.infrastructure_vpc && !local.infrastructure_vpc_network_acl_egress_lockdown ? 1 : 0 | ||
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network_acl_id = aws_network_acl.infrastructure[0].id | ||
egress = true | ||
rule_number = 100 | ||
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rule_action = "allow" | ||
protocol = "-1" | ||
from_port = 0 | ||
to_port = 0 | ||
cidr_block = "0.0.0.0/0" | ||
} | ||
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resource "aws_network_acl_rule" "egress" { | ||
count = local.infrastructure_vpc ? length(local.infrastructure_vpc_network_acl_egress_custom_rules) : 0 | ||
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network_acl_id = aws_network_acl.infrastructure[0].id | ||
rule_number = count.index + 1 | ||
egress = true | ||
protocol = local.infrastructure_vpc_network_acl_egress_custom_rules[count.index]["protocol"] | ||
rule_action = local.infrastructure_vpc_network_acl_egress_custom_rules[count.index]["action"] | ||
cidr_block = local.infrastructure_vpc_network_acl_egress_custom_rules[count.index]["cidr_block"] | ||
from_port = local.infrastructure_vpc_network_acl_egress_custom_rules[count.index]["from_port"] | ||
to_port = local.infrastructure_vpc_network_acl_egress_custom_rules[count.index]["to_port"] | ||
} | ||
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#This will only be used if `infrastructure_vpc_network_acl_ingress_lockdown` isn't set | ||
#We would want to allow all traffic for debugging purposes | ||
#tfsec:ignore:aws-ec2-no-excessive-port-access tfsec:ignore:aws-ec2-no-public-ingress-acl | ||
resource "aws_network_acl_rule" "ingress_allow_all" { | ||
count = local.infrastructure_vpc && !local.infrastructure_vpc_network_acl_ingress_lockdown ? 1 : 0 | ||
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network_acl_id = aws_network_acl.infrastructure[0].id | ||
egress = false | ||
rule_number = 100 | ||
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rule_action = "allow" | ||
protocol = "-1" | ||
from_port = 0 | ||
to_port = 0 | ||
cidr_block = "0.0.0.0/0" | ||
} | ||
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resource "aws_network_acl_rule" "ingress" { | ||
count = local.infrastructure_vpc ? length(local.infrastructure_vpc_network_acl_ingress_custom_rules) : 0 | ||
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network_acl_id = aws_network_acl.infrastructure[0].id | ||
rule_number = count.index + 1 | ||
egress = false | ||
protocol = local.infrastructure_vpc_network_acl_ingress_custom_rules[count.index]["protocol"] | ||
rule_action = local.infrastructure_vpc_network_acl_ingress_custom_rules[count.index]["action"] | ||
cidr_block = local.infrastructure_vpc_network_acl_ingress_custom_rules[count.index]["cidr_block"] | ||
from_port = local.infrastructure_vpc_network_acl_ingress_custom_rules[count.index]["from_port"] | ||
to_port = local.infrastructure_vpc_network_acl_ingress_custom_rules[count.index]["to_port"] | ||
} |