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Enable Network Load Balancer (NLB) dualstack

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* NLB subnets assigned both IPv4 and IPv6 addresses
* NLB DNS name has both A and AAAA records
* NLB to target node traffic is IPv4 (no change),
no change to security groups needed
* Ingresses exposed through the recommended Nginx
Ingress Controller addon will be accessible via
IPv4 or IPv6. No change is needed to the app's
CNAME to NLB record

Related: https://aws.amazon.com/about-aws/whats-new/2020/11/network-load-balancer-supports-ipv6/
This commit is contained in:
Dalton Hubble
2020-11-21 13:47:09 -08:00
parent be28495d79
commit 5e4f5de271
4 changed files with 10 additions and 3 deletions
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1
aws/flatcar-linux/kubernetes/nlb.tf
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@ -17,6 +17,7 @@ resource "aws_route53_record" "apiserver" {
resource "aws_lb" "nlb" {
name = "${var.cluster_name}-nlb"
load_balancer_type = "network"
ip_address_type = "dualstack"
internal = false
subnets = aws_subnet.public.*.id