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Copy pathdeploy-vm-PercentMemory_alert.bicep
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deploy-vm-PercentMemory_alert.bicep
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// Copyright (c) Microsoft Corporation.
// Licensed under the MIT license.
targetScope = 'managementGroup'
param policyLocation string = 'centralus'
param parResourceGroupName string = 'AlzMonitoring-rg'
param parResourceGroupLocation string = 'centralus'
param parResourceGroupTags object = {
environment: 'test'
}
param deploymentRoleDefinitionIds array = [
'/providers/Microsoft.Authorization/roleDefinitions/b24988ac-6180-42a0-ab88-20f7382dd24c'
]
@allowed([
'0'
'1'
'2'
'3'
'4'
])
param parAlertSeverity string = '2'
@allowed([
'PT5M'
'PT15M'
'PT30M'
'PT1H'
'PT6H'
'PT12H'
'P1D'
])
param parWindowSize string = 'PT15M'
@allowed([
'Equals'
'GreaterThan'
'GreaterThanOrEqual'
'LessThan'
'LessThanOrEqual'
])
param parOperator string = 'LessThan'
@allowed([
'PT1M'
'PT5M'
'PT15M'
'PT30M'
'PT1H'
])
param parEvaluationFrequency string = 'PT5M'
@allowed([
'deployIfNotExists'
'disabled'
])
param parPolicyEffect string = 'deployIfNotExists'
param parAutoMitigate string = 'true'
param parautoResolve string = 'true'
param parautoResolveTime string = '00:10:00'
param parAlertState string = 'true'
param parThreshold string = '10'
param parEvaluationPeriods string = '1'
param parFailingPeriods string = '1'
@allowed([
'Average'
'Count'
'Maximum'
'Minimum'
'Total'
])
param parTimeAggregation string = 'Average'
//param parMonitorDisable string = 'MonitorDisable'
module VMLAMemoryAlert '../../arm/Microsoft.Authorization/policyDefinitions/managementGroup/deploy.bicep' = {
name: '${uniqueString(deployment().name)}-vmama-policyDefinitions'
params: {
name: 'Deploy_VM_Memory_Alert'
displayName: 'Deploy VM Memory Alert'
description: 'Policy to audit/deploy VM Memory Alert'
location: policyLocation
metadata: {
version: '1.0.1'
category: 'Compute'
source: 'https://github.com/Azure/Enterprise-Scale/'
alzCloudEnvironments: [
'AzureCloud'
]
_deployed_by_alz_monitor: 'True'
}
parameters: {
alertResourceGroupName: {
type: 'String'
metadata: {
displayName: 'Resource Group Name'
description: 'Resource group the alert is placed in'
}
defaultValue: parResourceGroupName
}
alertResourceGroupTags: {
type: 'Object'
metadata: {
displayName: 'Resource Group Tags'
description: 'Tags on the Resource group the alert is placed in'
}
defaultValue: parResourceGroupTags
}
alertResourceGroupLocation: {
type: 'String'
metadata: {
displayName: 'Resource Group Location'
description: 'Location of the Resource group the alert is placed in'
}
defaultValue: parResourceGroupLocation
}
severity: {
type: 'String'
metadata: {
displayName: 'Severity'
description: 'Severity of the Alert'
}
allowedValues: [
'0'
'1'
'2'
'3'
'4'
]
defaultValue: parAlertSeverity
}
operator: {
type: 'String'
metadata:{ displayName: 'Operator'}
allowedvalues:[
'Equals'
'GreaterThan'
'GreaterThanOrEqual'
'LessThan'
'LessThanOrEqual'
]
defaultvalue: parOperator
}
timeAggregation:{
type:'String'
metadata: {
displayName: 'TimeAggregation'
}
allowedValues:[
'Average'
'Count'
'Maximum'
'Minimum'
'Total'
]
defaultvalue: parTimeAggregation
}
windowSize: {
type: 'String'
metadata: {
displayName: 'Window Size'
description: 'Window size for the alert'
}
allowedValues: [
'PT5M'
'PT15M'
'PT30M'
'PT1H'
'PT6H'
'PT12H'
'PT24H'
]
defaultValue: parWindowSize
}
evaluationFrequency: {
type: 'String'
metadata: {
displayName: 'Evaluation Frequency'
description: 'Evaluation frequency for the alert'
}
allowedValues: [
'PT5M'
'PT15M'
'PT30M'
'PT1H'
]
defaultValue: parEvaluationFrequency
}
autoMitigate: {
type: 'String'
metadata: {
displayName: 'Auto Mitigate'
description: 'Auto Mitigate for the alert'
}
allowedValues: [
'true'
'false'
]
defaultValue: parAutoMitigate
}
autoResolve: {
type: 'String'
metadata: {
displayName: 'Auto Resolve'
description: 'Auto Resolve for the alert'
}
allowedValues: [
'true'
'false'
]
defaultValue: parautoResolve
}
autoResolveTime: {
type: 'String'
metadata: {
displayName: 'Auto Resolve'
description: 'Auto Resolve time for the alert in ISO 8601 format'
}
defaultValue: parautoResolveTime
}
enabled: {
type: 'String'
metadata: {
displayName: 'Alert State'
description: 'Alert state for the alert'
}
allowedValues: [
'true'
'false'
]
defaultValue: parAlertState
}
threshold: {
type: 'String'
metadata: {
displayName: 'Threshold'
description: 'Threshold for the alert'
}
defaultValue: parThreshold
}
failingPeriods: {
type: 'String'
metadata:{
displayname: 'Failing Periods'
description: 'Number of failing periods before alert is fired'
}
defaultValue: parFailingPeriods
}
evaluationPeriods: {
type: 'String'
metadata:{
displayname: 'Evaluation Periods'
description: 'The number of aggregated lookback points.'
}
defaultValue: parEvaluationPeriods
}
effect: {
type: 'String'
metadata: {
displayName: 'Effect'
description: 'Effect of the policy'
}
allowedValues: [
'deployIfNotExists'
'disabled'
]
defaultValue: parPolicyEffect
}
}
policyRule: {
if: {
allOf: [
{
field: 'type'
equals: 'Microsoft.Compute/virtualMachines'
}
]
}
then: {
effect: '[parameters(\'effect\')]'
details: {
roleDefinitionIds: deploymentRoleDefinitionIds
type: 'Microsoft.Insights/scheduledQueryRules'
existenceScope: 'resourcegroup'
resourceGroupName: '[parameters(\'alertResourceGroupName\')]'
deploymentScope: 'subscription'
existenceCondition: {
allOf: [
{
field: 'Microsoft.Insights/scheduledQueryRules/displayName'
equals: '[concat(subscription().displayName, \'-VMLowMemoryAlert\')]'
}
{
field: 'Microsoft.Insights/scheduledqueryrules/scopes[*]'
equals: '[subscription().id]'
}
{
field: 'Microsoft.Insights/scheduledqueryrules/enabled'
equals: '[parameters(\'enabled\')]'
}
]
}
deployment: {
location:policyLocation
properties: {
mode: 'incremental'
template: {
'$schema': 'https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#'
contentVersion: '1.0.0.0'
parameters: {
policyLocation: {
type: 'string'
defaultValue: policyLocation
}
alertResourceGroupName: {
type: 'string'
}
alertResourceGroupTags: {
type: 'object'
}
alertResourceGroupLocation: {
type: 'string'
}
severity: {
type: 'String'
}
windowSize: {
type: 'String'
}
evaluationFrequency: {
type: 'String'
}
autoMitigate: {
type: 'String'
}
autoResolve: {
type: 'String'
}
autoResolveTime: {
type: 'String'
}
enabled: {
type: 'String'
}
threshold: {
type: 'String'
}
operator: {
type:'String'
}
timeAggregation: {
type:'String'
}
failingPeriods: {
type:'String'
}
evaluationPeriods: {
type:'String'
}
}
variables: {}
resources: [
{
type: 'Microsoft.Resources/resourceGroups'
apiVersion: '2021-04-01'
name: '[parameters(\'alertResourceGroupName\')]'
location: '[parameters(\'alertResourceGroupLocation\')]'
tags: '[parameters(\'alertResourceGroupTags\')]'
}
{
type: 'Microsoft.Resources/deployments'
apiVersion: '2019-10-01'
name: 'VMMemoryAlert'
resourceGroup: '[parameters(\'alertResourceGroupName\')]'
dependsOn: [
'[concat(\'Microsoft.Resources/resourceGroups/\', parameters(\'alertResourceGroupName\'))]'
]
properties: {
mode: 'Incremental'
template: {
'$schema': 'https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#'
contentVersion: '1.0.0.0'
parameters: {
enabled: {
type: 'string'
}
alertResourceGroupName: {
type: 'string'
}
alertResourceGroupLocation:{
type:'string'
}
}
variables: {}
resources: [
{
type: 'Microsoft.Insights/scheduledQueryRules'
apiVersion: '2022-08-01-preview'
name: '[concat(subscription().displayName, \'-VMLowMemoryAlert\')]'
location: '[parameters(\'alertResourceGroupLocation\')]'
properties: {
displayName: '[concat(subscription().displayName, \'-VMLowMemoryAlert\')]'
description: 'Log Alert for Virtual Machine Memory'
severity: '[parameters(\'severity\')]'
enabled: '[parameters(\'enabled\')]'
scopes: [
'[subscription().Id]'
]
targetResourceTypes: [
'Microsoft.Compute/virtualMachines'
]
evaluationFrequency: '[parameters(\'evaluationFrequency\')]'
windowSize: '[parameters(\'windowSize\')]'
criteria: {
allOf: [
{
query: 'InsightsMetrics| where Origin == "vm.azm.ms"|where Namespace == "Memory" and Name == "AvailableMB"| extend TotalMemory = toreal(todynamic(Tags)["vm.azm.ms/memorySizeMB"]) | extend AvailableMemoryPercentage = (toreal(Val) / TotalMemory) * 100.0| summarize AggregatedValue = avg(AvailableMemoryPercentage) by bin(TimeGenerated, 15m), Computer, _ResourceId'
metricMeasureColumn: 'AggregatedValue'
threshold: '[parameters(\'threshold\')]'
operator: '[parameters(\'operator\')]'
resourceIdColumn: '_ResourceId'
timeAggregation: '[parameters(\'timeAggregation\')]'
dimensions:[
{
name: 'Computer'
operator: 'Include'
values: [
'*'
]
}
]
failingPeriods:{
numberOfEvaluationPeriods: '[parameters(\'evaluationPeriods\')]'
minFailingPeriodsToAlert: '[parameters(\'failingPeriods\')]'
}
}
]
}
autoMitigate: '[parameters(\'autoMitigate\')]'
ruleResolveConfiguration: {
autoResolved: '[parameters(\'autoResolve\')]'
timeToResolve: '[parameters(\'autoResolveTime\')]'
}
parameters: {
alertResourceGroupName: {
value: '[parameters(\'alertResourceGroupName\')]'
}
alertResourceGroupLocation: {
value: '[parameters(\'alertResourceGroupName\')]'
}
severity: {
value: '[parameters(\'severity\')]'
}
windowSize: {
value: '[parameters(\'windowSize\')]'
}
evaluationFrequency: {
value: '[parameters(\'evaluationFrequency\')]'
}
autoMitigate: {
value: '[parameters(\'autoMitigate\')]'
}
autoResolve: {
value: '[parameters(\'autoResolve\')]'
}
autoResolveTime: {
value: '[parameters(\'autoResolveTime\')]'
}
enabled: {
value: '[parameters(\'enabled\')]'
}
threshold: {
value: '[parameters(\'threshold\')]'
}
failingPeriods: {
value: '[parameters(\'failingPeriods\')]'
}
evaluationPeriods: {
value: '[parameters(\'evaluationPeriods\')]'
}
}
}
}
]
}
parameters: {
enabled: {
value: '[parameters(\'enabled\')]'
}
alertResourceGroupName: {
value: '[parameters(\'alertResourceGroupName\')]'
}
alertResourceGroupLocation: {
value: '[parameters(\'alertResourceGroupLocation\')]'
}
}
}
}
]
}
parameters: {
alertResourceGroupName: {
value: '[parameters(\'alertResourceGroupName\')]'
}
alertResourceGroupTags: {
value: '[parameters(\'alertResourceGroupTags\')]'
}
alertResourceGroupLocation: {
value: '[parameters(\'alertResourceGroupLocation\')]'
}
severity: {
value: '[parameters(\'severity\')]'
}
windowSize: {
value: '[parameters(\'windowSize\')]'
}
evaluationFrequency: {
value: '[parameters(\'evaluationFrequency\')]'
}
autoMitigate: {
value: '[parameters(\'autoMitigate\')]'
}
autoResolve: {
value: '[parameters(\'autoResolve\')]'
}
autoResolveTime: {
value: '[parameters(\'autoResolveTime\')]'
}
enabled: {
value: '[parameters(\'enabled\')]'
}
threshold: {
value: '[parameters(\'threshold\')]'
}
operator: {
value: '[parameters(\'operator\')]'
}
timeAggregation: {
value: '[parameters(\'timeAggregation\')]'
}
failingPeriods: {
value: '[parameters(\'failingPeriods\')]'
}
evaluationPeriods: {
value: '[parameters(\'evaluationPeriods\')]'
}
}
}
}
}
}
}
}
}