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Allow for selectively disabling IPv6 addresses #217

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Allow for selectively disabling IPv6 addresses #217

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d6d9afb
allow for disabling private ipv6 only
johnseekins-pathccm Dec 5, 2024
a313e07
also allow for disabling public ipv6 only
johnseekins-pathccm Dec 5, 2024
2f9733f
use simpler evals
johnseekins-pathccm Dec 9, 2024
3fcbcf2
fix typo
johnseekins-pathccm Dec 9, 2024
bbaf22f
more consistent naming
johnseekins-pathccm Dec 10, 2024
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4 changes: 2 additions & 2 deletions main.tf
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Original file line number Diff line number Diff line change
Expand Up @@ -135,9 +135,9 @@ locals {
ipv6_egress_only_configured = local.ipv6_enabled && length(var.ipv6_egress_only_igw_id) > 0

public4_enabled = local.public_enabled && local.ipv4_enabled
public6_enabled = local.public_enabled && local.ipv6_enabled
public6_enabled = local.public_enabled && local.ipv6_enabled && var.public_ipv6_enabled
private4_enabled = local.private_enabled && local.ipv4_enabled
private6_enabled = local.private_enabled && local.ipv6_enabled
private6_enabled = local.private_enabled && local.ipv6_enabled && var.private_ipv6_enabled

public_dns64_enabled = local.public6_enabled && var.public_dns64_nat64_enabled
# Set the default for private_dns64_enabled to true unless there is no IPv4 egress to enable it.
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14 changes: 14 additions & 0 deletions variables.tf
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Expand Up @@ -102,6 +102,20 @@ variable "ipv6_enabled" {
nullable = false
}

variable "private_ipv6_enabled" {
type = bool
description = "Set `false` to disable IPv6 addresses in private subnets"
default = true
nullable = false
}

variable "public_ipv6_enabled" {
type = bool
description = "Set `false` to disable IPv6 addresses in public subnets"
default = true
nullable = false
}

variable "ipv4_cidr_block" {
type = list(string)
description = <<-EOT
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