mirror of
https://github.com/poseidon/typhoon
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157be05591
* AWS IPv4 address pricing is quite high compared to other clouds, and an NLB unavoidably uses at least 3. * Unlike Azure's nice outbound through LB options, AWS has only NAT options which are even more costly than IPv4 in budget clusters. Another option is to simply forget about accessing nodes via IPv4 or outbound IPv4 internet access (tradeoff: GitHub is a notable website that only serves via IPv4, so cut ties)
428 lines
11 KiB
HCL
428 lines
11 KiB
HCL
# Security Groups (instance firewalls)
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# Controller security group
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resource "aws_security_group" "controller" {
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name = "${var.cluster_name}-controller"
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description = "${var.cluster_name} controller security group"
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vpc_id = aws_vpc.network.id
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tags = {
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"Name" = "${var.cluster_name}-controller"
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}
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}
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resource "aws_security_group_rule" "controller-icmp" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "icmp"
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from_port = 8
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to_port = 0
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-icmp-self" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "icmp"
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from_port = 8
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to_port = 0
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self = true
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}
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resource "aws_security_group_rule" "controller-ssh" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 22
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to_port = 22
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cidr_blocks = ["0.0.0.0/0"]
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ipv6_cidr_blocks = ["::/0"]
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}
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resource "aws_security_group_rule" "controller-etcd" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 2379
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to_port = 2380
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self = true
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}
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# Allow Prometheus to scrape etcd metrics
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resource "aws_security_group_rule" "controller-etcd-metrics" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 2381
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to_port = 2381
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-cilium-health" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 4240
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to_port = 4240
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-cilium-health-self" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 4240
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to_port = 4240
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self = true
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}
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resource "aws_security_group_rule" "controller-cilium-metrics" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 9962
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to_port = 9965
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-cilium-metrics-self" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 9962
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to_port = 9965
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self = true
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}
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resource "aws_security_group_rule" "controller-apiserver" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 6443
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to_port = 6443
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cidr_blocks = ["0.0.0.0/0"]
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}
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# Linux VXLAN default
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resource "aws_security_group_rule" "controller-vxlan" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "udp"
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from_port = 8472
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to_port = 8472
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-vxlan-self" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "udp"
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from_port = 8472
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to_port = 8472
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self = true
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}
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# Allow Prometheus to scrape node-exporter daemonset
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resource "aws_security_group_rule" "controller-node-exporter" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 9100
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to_port = 9100
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source_security_group_id = aws_security_group.worker.id
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}
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# Allow Prometheus to scrape kube-proxy
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resource "aws_security_group_rule" "kube-proxy-metrics" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10249
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to_port = 10249
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source_security_group_id = aws_security_group.worker.id
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}
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# Allow apiserver to access kubelets for exec, log, port-forward
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resource "aws_security_group_rule" "controller-kubelet" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10250
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to_port = 10250
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-kubelet-self" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10250
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to_port = 10250
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self = true
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}
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# Allow Prometheus to scrape kube-scheduler
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resource "aws_security_group_rule" "controller-scheduler-metrics" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10259
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to_port = 10259
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source_security_group_id = aws_security_group.worker.id
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}
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# Allow Prometheus to scrape kube-controller-manager
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resource "aws_security_group_rule" "controller-manager-metrics" {
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security_group_id = aws_security_group.controller.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10257
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to_port = 10257
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source_security_group_id = aws_security_group.worker.id
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}
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resource "aws_security_group_rule" "controller-egress" {
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security_group_id = aws_security_group.controller.id
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type = "egress"
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protocol = "-1"
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from_port = 0
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to_port = 0
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cidr_blocks = ["0.0.0.0/0"]
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ipv6_cidr_blocks = ["::/0"]
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}
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# Worker security group
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resource "aws_security_group" "worker" {
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name = "${var.cluster_name}-worker"
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description = "${var.cluster_name} worker security group"
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vpc_id = aws_vpc.network.id
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tags = {
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"Name" = "${var.cluster_name}-worker"
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}
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}
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resource "aws_security_group_rule" "worker-icmp" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "icmp"
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from_port = 8
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to_port = 0
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source_security_group_id = aws_security_group.controller.id
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}
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resource "aws_security_group_rule" "worker-icmp-self" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "icmp"
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from_port = 8
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to_port = 0
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self = true
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}
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resource "aws_security_group_rule" "worker-ssh" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 22
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to_port = 22
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cidr_blocks = ["0.0.0.0/0"]
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}
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resource "aws_security_group_rule" "worker-http" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 80
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to_port = 80
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cidr_blocks = ["0.0.0.0/0"]
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}
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resource "aws_security_group_rule" "worker-https" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 443
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to_port = 443
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cidr_blocks = ["0.0.0.0/0"]
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}
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resource "aws_security_group_rule" "worker-cilium-health" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 4240
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to_port = 4240
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source_security_group_id = aws_security_group.controller.id
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}
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resource "aws_security_group_rule" "worker-cilium-health-self" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 4240
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to_port = 4240
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self = true
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}
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resource "aws_security_group_rule" "worker-cilium-metrics" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 9962
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to_port = 9965
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source_security_group_id = aws_security_group.controller.id
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}
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resource "aws_security_group_rule" "worker-cilium-metrics-self" {
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count = var.networking == "cilium" ? 1 : 0
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 9962
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to_port = 9965
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self = true
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}
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# Linux VXLAN default
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resource "aws_security_group_rule" "worker-vxlan" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "udp"
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from_port = 8472
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to_port = 8472
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source_security_group_id = aws_security_group.controller.id
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}
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resource "aws_security_group_rule" "worker-vxlan-self" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "udp"
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from_port = 8472
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to_port = 8472
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self = true
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}
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# Allow Prometheus to scrape node-exporter daemonset
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resource "aws_security_group_rule" "worker-node-exporter" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 9100
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to_port = 9100
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self = true
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}
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# Allow Prometheus to scrape kube-proxy
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resource "aws_security_group_rule" "worker-kube-proxy" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10249
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to_port = 10249
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self = true
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}
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# Allow apiserver to access kubelets for exec, log, port-forward
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resource "aws_security_group_rule" "worker-kubelet" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10250
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to_port = 10250
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source_security_group_id = aws_security_group.controller.id
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}
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# Allow Prometheus to scrape kubelet metrics
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resource "aws_security_group_rule" "worker-kubelet-self" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10250
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to_port = 10250
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self = true
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}
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resource "aws_security_group_rule" "ingress-health" {
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security_group_id = aws_security_group.worker.id
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type = "ingress"
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protocol = "tcp"
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from_port = 10254
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to_port = 10254
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cidr_blocks = ["0.0.0.0/0"]
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}
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resource "aws_security_group_rule" "worker-egress" {
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security_group_id = aws_security_group.worker.id
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type = "egress"
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protocol = "-1"
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from_port = 0
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to_port = 0
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cidr_blocks = ["0.0.0.0/0"]
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ipv6_cidr_blocks = ["::/0"]
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}
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