406 lines
13 KiB
HCL
406 lines
13 KiB
HCL
// AWS Load Balancer Controller
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resource "aws_iam_role" "aws_load_balancer_controller" {
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name = "${var.cluster_name}-aws-load-balancer-controller-role"
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assume_role_policy = jsonencode({
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Version = "2012-10-17",
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Statement = [{
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Sid = ""
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Effect = "Allow",
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Principal = {
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Federated = module.eks.oidc_provider_arn
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},
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Action = "sts:AssumeRoleWithWebIdentity",
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Condition = {
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StringEquals = {
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"${module.eks.oidc_provider}:sub" = "system:serviceaccount:kube-system:aws-load-balancer-controller"
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"${module.eks.oidc_provider}:aud" = "sts.amazonaws.com"
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}
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}
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}]
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})
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}
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resource "aws_iam_policy" "AWSLoadBalancerControllerIAMPolicy" {
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name = "${var.cluster_name}-AWSLoadBalancerControllerIAMPolicy"
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policy = <<POLICY
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Effect": "Allow",
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"Action": [
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"iam:CreateServiceLinkedRole"
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],
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"Resource": "*",
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"Condition": {
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"StringEquals": {
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"iam:AWSServiceName": "elasticloadbalancing.amazonaws.com"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"ec2:DescribeAccountAttributes",
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"ec2:DescribeAddresses",
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"ec2:DescribeAvailabilityZones",
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"ec2:DescribeInternetGateways",
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"ec2:DescribeVpcs",
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"ec2:DescribeVpcPeeringConnections",
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"ec2:DescribeSubnets",
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"ec2:DescribeSecurityGroups",
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"ec2:DescribeInstances",
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"ec2:DescribeNetworkInterfaces",
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"ec2:DescribeTags",
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"ec2:GetCoipPoolUsage",
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"ec2:DescribeCoipPools",
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"ec2:GetSecurityGroupsForVpc",
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"ec2:DescribeIpamPools",
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"ec2:DescribeRouteTables",
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"elasticloadbalancing:DescribeLoadBalancers",
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"elasticloadbalancing:DescribeLoadBalancerAttributes",
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"elasticloadbalancing:DescribeListeners",
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"elasticloadbalancing:DescribeListenerCertificates",
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"elasticloadbalancing:DescribeSSLPolicies",
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"elasticloadbalancing:DescribeRules",
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"elasticloadbalancing:DescribeTargetGroups",
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"elasticloadbalancing:DescribeTargetGroupAttributes",
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"elasticloadbalancing:DescribeTargetHealth",
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"elasticloadbalancing:DescribeTags",
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"elasticloadbalancing:DescribeTrustStores",
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"elasticloadbalancing:DescribeListenerAttributes",
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"elasticloadbalancing:DescribeCapacityReservation"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"cognito-idp:DescribeUserPoolClient",
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"acm:ListCertificates",
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"acm:DescribeCertificate",
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"iam:ListServerCertificates",
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"iam:GetServerCertificate",
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"waf-regional:GetWebACL",
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"waf-regional:GetWebACLForResource",
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"waf-regional:AssociateWebACL",
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"waf-regional:DisassociateWebACL",
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"wafv2:GetWebACL",
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"wafv2:GetWebACLForResource",
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"wafv2:AssociateWebACL",
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"wafv2:DisassociateWebACL",
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"shield:GetSubscriptionState",
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"shield:DescribeProtection",
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"shield:CreateProtection",
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"shield:DeleteProtection"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"ec2:AuthorizeSecurityGroupIngress",
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"ec2:RevokeSecurityGroupIngress"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"ec2:CreateSecurityGroup"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"ec2:CreateTags"
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],
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"Resource": "arn:aws:ec2:*:*:security-group/*",
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"Condition": {
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"StringEquals": {
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"ec2:CreateAction": "CreateSecurityGroup"
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},
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"Null": {
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"aws:RequestTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"ec2:CreateTags",
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"ec2:DeleteTags"
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],
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"Resource": "arn:aws:ec2:*:*:security-group/*",
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"Condition": {
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"Null": {
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"aws:RequestTag/elbv2.k8s.aws/cluster": "true",
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"aws:ResourceTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"ec2:AuthorizeSecurityGroupIngress",
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"ec2:RevokeSecurityGroupIngress",
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"ec2:DeleteSecurityGroup"
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],
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"Resource": "*",
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"Condition": {
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"Null": {
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"aws:ResourceTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:CreateLoadBalancer",
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"elasticloadbalancing:CreateTargetGroup"
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],
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"Resource": "*",
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"Condition": {
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"Null": {
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"aws:RequestTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:CreateListener",
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"elasticloadbalancing:DeleteListener",
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"elasticloadbalancing:CreateRule",
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"elasticloadbalancing:DeleteRule"
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],
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"Resource": "*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:AddTags",
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"elasticloadbalancing:RemoveTags"
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],
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"Resource": [
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"arn:aws:elasticloadbalancing:*:*:targetgroup/*/*",
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"arn:aws:elasticloadbalancing:*:*:loadbalancer/net/*/*",
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"arn:aws:elasticloadbalancing:*:*:loadbalancer/app/*/*"
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],
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"Condition": {
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"Null": {
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"aws:RequestTag/elbv2.k8s.aws/cluster": "true",
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"aws:ResourceTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:AddTags",
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"elasticloadbalancing:RemoveTags"
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],
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"Resource": [
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"arn:aws:elasticloadbalancing:*:*:listener/net/*/*/*",
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"arn:aws:elasticloadbalancing:*:*:listener/app/*/*/*",
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"arn:aws:elasticloadbalancing:*:*:listener-rule/net/*/*/*",
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"arn:aws:elasticloadbalancing:*:*:listener-rule/app/*/*/*"
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]
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:ModifyLoadBalancerAttributes",
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"elasticloadbalancing:SetIpAddressType",
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"elasticloadbalancing:SetSecurityGroups",
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"elasticloadbalancing:SetSubnets",
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"elasticloadbalancing:DeleteLoadBalancer",
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"elasticloadbalancing:ModifyTargetGroup",
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"elasticloadbalancing:ModifyTargetGroupAttributes",
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"elasticloadbalancing:DeleteTargetGroup",
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"elasticloadbalancing:ModifyListenerAttributes",
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"elasticloadbalancing:ModifyCapacityReservation",
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"elasticloadbalancing:ModifyIpPools"
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],
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"Resource": "*",
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"Condition": {
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"Null": {
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"aws:ResourceTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:AddTags"
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],
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"Resource": [
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"arn:aws:elasticloadbalancing:*:*:targetgroup/*/*",
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"arn:aws:elasticloadbalancing:*:*:loadbalancer/net/*/*",
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"arn:aws:elasticloadbalancing:*:*:loadbalancer/app/*/*"
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],
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"Condition": {
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"StringEquals": {
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"elasticloadbalancing:CreateAction": [
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"CreateTargetGroup",
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"CreateLoadBalancer"
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]
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},
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"Null": {
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"aws:RequestTag/elbv2.k8s.aws/cluster": "false"
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}
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}
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:RegisterTargets",
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"elasticloadbalancing:DeregisterTargets"
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],
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"Resource": "arn:aws:elasticloadbalancing:*:*:targetgroup/*/*"
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},
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{
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"Effect": "Allow",
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"Action": [
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"elasticloadbalancing:SetWebAcl",
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"elasticloadbalancing:ModifyListener",
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"elasticloadbalancing:AddListenerCertificates",
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"elasticloadbalancing:RemoveListenerCertificates",
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"elasticloadbalancing:ModifyRule",
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"elasticloadbalancing:SetRulePriorities"
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],
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"Resource": "*"
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}
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]
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}
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POLICY
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}
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resource "aws_iam_role_policy_attachment" "aws_load_balancer_controller" {
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role = aws_iam_role.aws_load_balancer_controller.name
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policy_arn = aws_iam_policy.AWSLoadBalancerControllerIAMPolicy.arn
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}
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// Cluster Autoscaler
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resource "aws_iam_role" "cluster_autoscaler" {
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name = "${var.cluster_name}-aws-cluster-autoscaler-role"
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assume_role_policy = jsonencode({
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Version = "2012-10-17",
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Statement = [{
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Sid = ""
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Effect = "Allow",
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Principal = {
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Federated = module.eks.oidc_provider_arn
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},
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Action = "sts:AssumeRoleWithWebIdentity",
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Condition = {
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StringEquals = {
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"${module.eks.oidc_provider}:sub" = "system:serviceaccount:kube-system:cluster-autoscaler"
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"${module.eks.oidc_provider}:aud" = "sts.amazonaws.com"
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}
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}
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}]
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})
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}
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resource "aws_iam_policy" "ClusterAutoscalerIAMPolicy" {
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name = "${var.cluster_name}-ClusterAutoscalerIAMPolicy"
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policy = <<POLICY
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Effect": "Allow",
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"Action": [
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"autoscaling:DescribeAutoScalingGroups",
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"autoscaling:DescribeAutoScalingInstances",
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"autoscaling:DescribeLaunchConfigurations",
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"autoscaling:DescribeScalingActivities",
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"ec2:DescribeInstanceTypes",
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"ec2:DescribeLaunchTemplateVersions"
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],
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"Resource": ["*"]
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},
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{
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"Effect": "Allow",
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"Action": [
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"autoscaling:SetDesiredCapacity",
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"autoscaling:TerminateInstanceInAutoScalingGroup"
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],
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"Resource": ["*"]
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}
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]
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}
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POLICY
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}
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resource "aws_iam_role_policy_attachment" "cluster_autoscaler" {
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role = aws_iam_role.cluster_autoscaler.name
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policy_arn = aws_iam_policy.ClusterAutoscalerIAMPolicy.arn
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}
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// External DNS
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resource "aws_iam_role" "external_dns" {
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name = "${var.cluster_name}-external-dns-role"
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assume_role_policy = jsonencode({
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Version = "2012-10-17",
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Statement = [{
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Sid = ""
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Effect = "Allow",
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Principal = {
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Federated = module.eks.oidc_provider_arn
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},
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Action = "sts:AssumeRoleWithWebIdentity",
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Condition = {
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StringEquals = {
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"${module.eks.oidc_provider}:sub" = "system:serviceaccount:default:external-dns"
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"${module.eks.oidc_provider}:aud" = "sts.amazonaws.com"
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}
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}
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}]
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})
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}
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resource "aws_iam_policy" "AllowExternalDNSUpdates" {
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name = "${var.cluster_name}-AllowExternalDNSUpdates"
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policy = <<POLICY
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{
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"Version": "2012-10-17",
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"Statement": [
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{
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"Effect": "Allow",
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"Action": [
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"route53:ChangeResourceRecordSets"
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],
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"Resource": [
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"arn:aws:route53:::hostedzone/*"
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]
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},
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{
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"Effect": "Allow",
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"Action": [
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"route53:ListHostedZones",
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"route53:ListResourceRecordSets",
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"route53:ListTagsForResource"
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],
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"Resource": [
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"*"
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]
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}
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]
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}
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POLICY
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}
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resource "aws_iam_role_policy_attachment" "external_dns" {
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role = aws_iam_role.external_dns.name
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policy_arn = aws_iam_policy.AllowExternalDNSUpdates.arn
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}
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