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feat: Support additional cluster DNS IPs with Bottlerocket based AMIs (#3051)

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* Support adding additional cluster dns ranges to bottlerocket template

* Add example for multiple dns ips

* fmt, and tf docs

* fix: Use a list by default for cluster-dns-ip

---------

Co-authored-by: Bryant Biggs <bryantbiggs@gmail.com>
This commit is contained in:
Ramsey McGrath
2024-05-28 14:40:29 -04:00
committed by GitHub
parent f90f15e91e
commit 541dbb29f1
11 changed files with 30 additions and 10 deletions
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4
modules/_user_data/main.tf
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@@ -43,6 +43,7 @@ locals {
}
cluster_service_cidr = try(coalesce(var.cluster_service_ipv4_cidr, var.cluster_service_cidr), "")
cluster_dns_ips = flatten(concat([try(cidrhost(local.cluster_service_cidr, 10), "")], var.additional_cluster_dns_ips))
user_data = base64encode(templatefile(
coalesce(var.user_data_template_path, local.template_path[local.user_data_type]),
@@ -57,8 +58,9 @@ locals {
cluster_service_cidr = local.cluster_service_cidr
cluster_ip_family = var.cluster_ip_family
# Bottlerocket
cluster_dns_ip = try(cidrhost(local.cluster_service_cidr, 10), "")
cluster_dns_ips = "[${join(", ", formatlist("\"%s\"", local.cluster_dns_ips))}]"
# Optional
bootstrap_extra_args = var.bootstrap_extra_args