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cluster.tf
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resource "aws_instance" "k8s-master" {
ami = data.aws_ami.ubuntu.id
instance_type = var.instance_size
key_name = var.key_pair
vpc_security_group_ids = [aws_security_group.k8s-server-sg.id]
user_data = templatefile("${path.module}/scripts/master_install.sh", {})
subnet_id = aws_subnet.public-subnet[0].id
iam_instance_profile = aws_iam_instance_profile.k8s-main-profile.id
private_ip = "10.0.1.10"
tags = {
Name = "k8s-server-${var.unit_prefix}"
# TTL = "-1"
owner = var.owner_email
"kubernetes.io/cluster/javaperks" = "owned"
}
}
resource "aws_instance" "k8s-worker" {
count = var.num_worker_nodes
ami = data.aws_ami.ubuntu.id
instance_type = var.instance_size
key_name = var.key_pair
vpc_security_group_ids = [aws_security_group.k8s-node-sg.id]
user_data = templatefile("${path.module}/scripts/worker_install.sh", {
NODE_ID = count.index + 1
})
subnet_id = aws_subnet.public-subnet[count.index%length(var.aws_azs)].id
iam_instance_profile = aws_iam_instance_profile.k8s-main-profile.id
private_ip = "10.0.${count.index%length(var.aws_azs)+1}.${count.index + 100}"
tags = {
Name = "k8s-worker-${var.unit_prefix}-${count.index + 1}"
# TTL = "-1"
owner = var.owner_email
"kubernetes.io/cluster/javaperks" = "owned"
}
}
resource "aws_security_group" "k8s-node-sg" {
name = "k8s-node-sg-${var.unit_prefix}"
description = "webserver security group"
vpc_id = aws_vpc.primary-vpc.id
tags = {
"kubernetes.io/cluster/javaperks" = "owned"
}
ingress {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 6781
to_port = 6784
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 6783
to_port = 6784
protocol = "udp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8080
to_port = 8080
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8300
to_port = 8302
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8301
to_port = 8302
protocol = "udp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8500
to_port = 8500
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8600
to_port = 8600
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8600
to_port = 8600
protocol = "udp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 10250
to_port = 10250
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 30000
to_port = 32767
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}
resource "aws_security_group" "k8s-server-sg" {
name = "k8s-server-sg-${var.unit_prefix}"
description = "webserver security group"
vpc_id = aws_vpc.primary-vpc.id
tags = {
"kubernetes.io/cluster/javaperks" = "owned"
}
ingress {
from_port = 22
to_port = 22
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 80
to_port = 80
protocol = "tcp"
cidr_blocks = ["0.0.0.0/0"]
}
ingress {
from_port = 2379
to_port = 2380
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 5000
to_port = 5000
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 6443
to_port = 6443
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 6781
to_port = 6784
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 6783
to_port = 6784
protocol = "udp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8080
to_port = 8080
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8300
to_port = 8302
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8301
to_port = 8302
protocol = "udp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8500
to_port = 8500
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8600
to_port = 8600
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 8600
to_port = 8600
protocol = "udp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 10250
to_port = 10252
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
ingress {
from_port = 10255
to_port = 10255
protocol = "tcp"
cidr_blocks = ["10.0.0.0/16"]
}
egress {
from_port = 0
to_port = 0
protocol = "-1"
cidr_blocks = ["0.0.0.0/0"]
}
}
data "aws_iam_policy_document" "k8s-assume-role" {
statement {
effect = "Allow"
actions = ["sts:AssumeRole"]
principals {
type = "Service"
identifiers = ["ec2.amazonaws.com"]
}
}
}
data "aws_iam_policy_document" "k8s-main-access-doc-data" {
statement {
sid = "FullAccess"
effect = "Allow"
resources = ["*"]
actions = [
"ecr:*",
"ecr:GetAuthorizationToken",
"ec2:*",
"ec2:Describe*",
"ec2messages:GetMessages",
"elasticloadbalancing:*",
"autoscaling:DescribeAutoScalingGroup",
"autoscaling:UpdateAutoScalingGroup",
"autoscaling:DescribeTags",
"ssm:UpdateInstanceInformation",
"ssm:ListInstanceAssociations",
"ssm:ListAssociations",
"kms:Encrypt",
"kms:Decrypt",
"kms:DescribeKey",
"ssmmessages:CreateControlChannel",
"ssmmessages:CreateDataChannel",
"ssmmessages:OpenControlChannel",
"ssmmessages:OpenDataChannel"
]
}
}
data "aws_iam_policy_document" "k8s-main-tag-doc-data" {
statement {
effect = "Allow"
resources = ["arn:aws:ec2:*:*:network-interface/*"]
actions = [
"ec2:CreateTags"
]
}
}
data "aws_iam_policy_document" "k8s-main-inst-doc-data" {
statement {
effect = "Allow"
resources = ["arn:aws:ec2:*:*:instance/*"]
actions = [
"ec2:AttachVolume",
"ec2:DetachVolume"
]
}
}
resource "aws_iam_policy" "k8s-main-access-doc" {
name = "k8s-access-policy-${var.unit_prefix}"
policy = data.aws_iam_policy_document.k8s-main-access-doc-data.json
}
resource "aws_iam_policy" "k8s-main-tag-doc" {
name = "k8s-tag-policy-${var.unit_prefix}"
policy = data.aws_iam_policy_document.k8s-main-tag-doc-data.json
}
resource "aws_iam_policy" "k8s-main-inst-doc" {
name = "k8s-inst-policy-${var.unit_prefix}"
policy = data.aws_iam_policy_document.k8s-main-inst-doc-data.json
}
resource "aws_iam_role" "k8s-main-access-role" {
name = "k8s-access-role-${var.unit_prefix}"
assume_role_policy = data.aws_iam_policy_document.k8s-assume-role.json
}
resource "aws_iam_role_policy_attachment" "k8s-main-access-policy-1" {
role = aws_iam_role.k8s-main-access-role.id
policy_arn = aws_iam_policy.k8s-main-access-doc.arn
}
resource "aws_iam_role_policy_attachment" "k8s-main-access-policy-2" {
role = aws_iam_role.k8s-main-access-role.id
policy_arn = aws_iam_policy.k8s-main-tag-doc.arn
}
resource "aws_iam_role_policy_attachment" "k8s-main-access-policy-3" {
role = aws_iam_role.k8s-main-access-role.id
policy_arn = aws_iam_policy.k8s-main-inst-doc.arn
}
resource "aws_iam_instance_profile" "k8s-main-profile" {
name = "k8s-access-profile-${var.unit_prefix}"
role = aws_iam_role.k8s-main-access-role.name
}