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main.tf
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locals {
target_group_arn = var.default_target_group_enabled ? join("", aws_lb_target_group.default.*.arn) : var.target_group_arn
authentication_oidc_scope = length(var.authentication_oidc_scope) > 0 ? join("%20", [for scope in var.authentication_oidc_scope : urlencode(scope)]) : null
authentication_cognito_scope = length(var.authentication_cognito_scope) > 0 ? join("%20", [for scope in var.authentication_cognito_scope : urlencode(scope)]) : null
}
data "aws_lb_target_group" "default" {
count = module.this.enabled ? 1 : 0
arn = local.target_group_arn
}
resource "aws_lb_target_group" "default" {
count = module.this.enabled && var.default_target_group_enabled ? 1 : 0
name = module.this.id
port = var.port
protocol = var.protocol
slow_start = var.slow_start
tags = var.tags
target_type = var.target_type
vpc_id = var.vpc_id
deregistration_delay = var.deregistration_delay
load_balancing_algorithm_type = var.load_balancing_algorithm_type
stickiness {
type = var.stickiness_type
cookie_duration = var.stickiness_cookie_duration
enabled = var.stickiness_enabled
}
health_check {
enabled = var.health_check_enabled
path = var.health_check_path
port = coalesce(var.health_check_port, var.port)
protocol = coalesce(var.health_check_protocol, var.protocol)
timeout = var.health_check_timeout
healthy_threshold = var.health_check_healthy_threshold
unhealthy_threshold = var.health_check_unhealthy_threshold
interval = var.health_check_interval
matcher = var.health_check_matcher
}
}
resource "aws_lb_listener_rule" "unauthenticated_paths" {
count = module.this.enabled && length(var.unauthenticated_paths) > 0 && length(var.unauthenticated_hosts) == 0 ? var.unauthenticated_listener_arns_count : 0
listener_arn = var.unauthenticated_listener_arns[count.index]
priority = var.unauthenticated_priority > 0 ? var.unauthenticated_priority + count.index : null
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
path_pattern {
values = var.unauthenticated_paths
}
}
condition {
dynamic "http_header" {
for_each = var.listener_http_header_conditions
content {
http_header_name = http_header.value["name"]
values = http_header.value["value"]
}
}
}
}
resource "aws_lb_listener_rule" "authenticated_paths_oidc" {
count = module.this.enabled && var.authentication_type == "OIDC" && length(var.authenticated_paths) > 0 && length(var.authenticated_hosts) == 0 ? var.authenticated_listener_arns_count : 0
listener_arn = var.authenticated_listener_arns[count.index]
priority = var.authenticated_priority > 0 ? var.authenticated_priority + count.index : null
action {
type = "authenticate-oidc"
authenticate_oidc {
client_id = var.authentication_oidc_client_id
client_secret = var.authentication_oidc_client_secret
issuer = var.authentication_oidc_issuer
authorization_endpoint = var.authentication_oidc_authorization_endpoint
token_endpoint = var.authentication_oidc_token_endpoint
user_info_endpoint = var.authentication_oidc_user_info_endpoint
scope = local.authentication_oidc_scope
}
}
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
path_pattern {
values = var.authenticated_paths
}
}
condition {
dynamic "http_header" {
for_each = var.listener_http_header_conditions
content {
http_header_name = http_header.value["name"]
values = http_header.value["value"]
}
}
}
}
resource "aws_lb_listener_rule" "authenticated_paths_cognito" {
count = module.this.enabled && var.authentication_type == "COGNITO" && length(var.authenticated_paths) > 0 && length(var.authenticated_hosts) == 0 ? var.authenticated_listener_arns_count : 0
listener_arn = var.authenticated_listener_arns[count.index]
priority = var.authenticated_priority > 0 ? var.authenticated_priority + count.index : null
action {
type = "authenticate-cognito"
authenticate_cognito {
user_pool_arn = var.authentication_cognito_user_pool_arn
user_pool_client_id = var.authentication_cognito_user_pool_client_id
user_pool_domain = var.authentication_cognito_user_pool_domain
scope = local.authentication_cognito_scope
}
}
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
path_pattern {
values = var.authenticated_paths
}
}
condition {
dynamic "http_header" {
for_each = var.listener_http_header_conditions
content {
http_header_name = http_header.value["name"]
values = http_header.value["value"]
}
}
}
}
resource "aws_lb_listener_rule" "unauthenticated_hosts" {
count = module.this.enabled && length(var.unauthenticated_hosts) > 0 && length(var.unauthenticated_paths) == 0 ? var.unauthenticated_listener_arns_count : 0
listener_arn = var.unauthenticated_listener_arns[count.index]
priority = var.unauthenticated_priority > 0 ? var.unauthenticated_priority + count.index : null
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
host_header {
values = var.unauthenticated_hosts
}
}
}
resource "aws_lb_listener_rule" "authenticated_hosts_oidc" {
count = module.this.enabled && var.authentication_type == "OIDC" && length(var.authenticated_hosts) > 0 && length(var.authenticated_paths) == 0 ? var.authenticated_listener_arns_count : 0
listener_arn = var.authenticated_listener_arns[count.index]
priority = var.authenticated_priority > 0 ? var.authenticated_priority + count.index : null
action {
type = "authenticate-oidc"
authenticate_oidc {
client_id = var.authentication_oidc_client_id
client_secret = var.authentication_oidc_client_secret
issuer = var.authentication_oidc_issuer
authorization_endpoint = var.authentication_oidc_authorization_endpoint
token_endpoint = var.authentication_oidc_token_endpoint
user_info_endpoint = var.authentication_oidc_user_info_endpoint
scope = local.authentication_oidc_scope
}
}
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
host_header {
values = var.authenticated_hosts
}
}
}
resource "aws_lb_listener_rule" "authenticated_hosts_cognito" {
count = module.this.enabled && var.authentication_type == "COGNITO" && length(var.authenticated_hosts) > 0 && length(var.authenticated_paths) == 0 ? var.authenticated_listener_arns_count : 0
listener_arn = var.authenticated_listener_arns[count.index]
priority = var.authenticated_priority > 0 ? var.authenticated_priority + count.index : null
action {
type = "authenticate-cognito"
authenticate_cognito {
user_pool_arn = var.authentication_cognito_user_pool_arn
user_pool_client_id = var.authentication_cognito_user_pool_client_id
user_pool_domain = var.authentication_cognito_user_pool_domain
scope = local.authentication_cognito_scope
}
}
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
host_header {
values = var.authenticated_hosts
}
}
}
resource "aws_lb_listener_rule" "unauthenticated_hosts_paths" {
count = module.this.enabled && length(var.unauthenticated_paths) > 0 && length(var.unauthenticated_hosts) > 0 ? var.unauthenticated_listener_arns_count : 0
listener_arn = var.unauthenticated_listener_arns[count.index]
priority = var.unauthenticated_priority > 0 ? var.unauthenticated_priority + count.index : null
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
host_header {
values = var.unauthenticated_hosts
}
}
condition {
path_pattern {
values = var.unauthenticated_paths
}
}
condition {
dynamic "http_header" {
for_each = var.listener_http_header_conditions
content {
http_header_name = http_header.value["name"]
values = http_header.value["value"]
}
}
}
}
resource "aws_lb_listener_rule" "authenticated_hosts_paths_oidc" {
count = module.this.enabled && var.authentication_type == "OIDC" && length(var.authenticated_paths) > 0 && length(var.authenticated_hosts) > 0 ? var.authenticated_listener_arns_count : 0
listener_arn = var.authenticated_listener_arns[count.index]
priority = var.authenticated_priority > 0 ? var.authenticated_priority + count.index : null
action {
type = "authenticate-oidc"
authenticate_oidc {
client_id = var.authentication_oidc_client_id
client_secret = var.authentication_oidc_client_secret
issuer = var.authentication_oidc_issuer
authorization_endpoint = var.authentication_oidc_authorization_endpoint
token_endpoint = var.authentication_oidc_token_endpoint
user_info_endpoint = var.authentication_oidc_user_info_endpoint
scope = local.authentication_oidc_scope
}
}
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
host_header {
values = var.authenticated_hosts
}
}
condition {
path_pattern {
values = var.authenticated_paths
}
}
}
resource "aws_lb_listener_rule" "authenticated_hosts_paths_cognito" {
count = module.this.enabled && var.authentication_type == "COGNITO" && length(var.authenticated_paths) > 0 && length(var.authenticated_hosts) > 0 ? var.authenticated_listener_arns_count : 0
listener_arn = var.authenticated_listener_arns[count.index]
priority = var.authenticated_priority > 0 ? var.authenticated_priority + count.index : null
action {
type = "authenticate-cognito"
authenticate_cognito {
user_pool_arn = var.authentication_cognito_user_pool_arn
user_pool_client_id = var.authentication_cognito_user_pool_client_id
user_pool_domain = var.authentication_cognito_user_pool_domain
scope = local.authentication_cognito_scope
}
}
action {
type = "forward"
target_group_arn = local.target_group_arn
}
condition {
host_header {
values = var.authenticated_hosts
}
}
condition {
path_pattern {
values = var.authenticated_paths
}
}
}