108 lines
3.5 KiB
Terraform
108 lines
3.5 KiB
Terraform
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/**
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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# tfdoc:file:description VPN monitoring alerts.
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# VPN alerts
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locals {
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alert_project_id = flatten([
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var.vpn_onprem_dev_primary_config == null ? [] : [module.dev-spoke-project.project_id],
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var.vpn_onprem_prod_primary_config == null ? [] : [module.prod-spoke-project.project_id]
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])
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}
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resource "google_monitoring_alert_policy" "vpn_tunnel_established" {
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for_each = var.alert_config.vpn_tunnel_established != null ? toset(local.alert_project_id) : []
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project = each.key
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display_name = "VPN Tunnel Established"
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enabled = var.alert_config.vpn_tunnel_established.enabled
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notification_channels = var.alert_config.vpn_tunnel_established.notification_channels
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user_labels = var.alert_config.vpn_tunnel_established.user_labels
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combiner = "OR"
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conditions {
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display_name = "VPN Tunnel Established"
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condition_monitoring_query_language {
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query = join("", [
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"fetch vpn_gateway",
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"| metric vpn.googleapis.com/tunnel_established",
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"| group_by 5m, [value_tunnel_established_max: max(value.tunnel_established)]",
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"| every 5m",
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"| condition val() < 1 '1'",
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])
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duration = var.alert_config.vpn_tunnel_established.duration
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trigger {
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count = "1"
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}
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}
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}
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dynamic "alert_strategy" {
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for_each = var.alert_config.vpn_tunnel_established.auto_close != null ? [1] : []
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content {
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auto_close = var.alert_config.vpn_tunnel_established.auto_close
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}
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}
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}
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# https://cloud.google.com/network-connectivity/docs/vpn/how-to/viewing-logs-metrics#define-bandwidth-alerts
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resource "google_monitoring_alert_policy" "vpn_tunnel_bandwidth" {
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for_each = var.alert_config.vpn_tunnel_bandwidth != null ? toset(local.alert_project_id) : []
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project = each.key
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display_name = "VPN Tunnel Bandwidth usage"
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enabled = var.alert_config.vpn_tunnel_bandwidth.enabled
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notification_channels = var.alert_config.vpn_tunnel_bandwidth.notification_channels
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user_labels = var.alert_config.vpn_tunnel_bandwidth.user_labels
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combiner = "OR"
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conditions {
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display_name = "VPN Tunnel Bandwidth usage"
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condition_monitoring_query_language {
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query = join("", [
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"fetch vpn_gateway",
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"| { metric vpn.googleapis.com/network/sent_bytes_count",
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"; metric vpn.googleapis.com/network/received_bytes_count }",
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"| align rate (1m)",
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"| group_by [metric.tunnel_name]",
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"| outer_join 0,0",
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"| value val(0) + val(1)",
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"| condition val() > ${var.alert_config.vpn_tunnel_bandwidth.threshold_mbys} \"MBy/s\"",
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])
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duration = var.alert_config.vpn_tunnel_bandwidth.duration
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trigger {
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count = "1"
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}
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}
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}
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dynamic "alert_strategy" {
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for_each = var.alert_config.vpn_tunnel_bandwidth.auto_close != null ? [1] : []
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content {
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auto_close = var.alert_config.vpn_tunnel_bandwidth.auto_close
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}
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}
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}
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