I want to create a NSG flow log for a network security group and storage account I created with Bicep.
I am deploying a NSG like
resource nsg 'Microsoft.Network/networkSecurityGroups@2020-06-01' = {
name: networkSecurityGroupName
location: location
properties: {
securityRules: [
...
and a storage account like
resource stg 'Microsoft.Storage/storageAccounts@2021-01-01' = {
name: storageName
location: location
kind: 'StorageV2'
sku: {
name: 'Standard_LRS'
}
}
but when adding and deploying a NSG flow with
resource nsgFlowLogs 'Microsoft.Network/networkWatchers/flowLogs@2020-08-01' = {
name: 'NetworkWatcher_${location}/${nsgFlowName}'
location: location
properties: {
targetResourceId: nsg.Id
storageId: stg.Id
enabled: true
retentionPolicy: {
days: 2
enabled: true
}
format: {
type: 'JSON'
version: 2
}
}
}
I get an error
| 19:02:20 - Error: Code=ResourceCountExceedsLimitDueToTemplate; Message=Subscription
| 853049fd-4889-45b6-aad9-f3f54421399c has a quota of 1 for resources of type NetworkWatcher with sku SkuNotSpecified.
| Subscription currently has 1 resources and the template contains 1 new resources of the this type which exceeds the
| quota. Please contact support to increase the quota for resource type NetworkWatcher
I turns out that the Network Watcher resource and the corresponding flow log needs to be created in a predefined resource group NetworkWatcherRG
.
Hence I extracted a module nsgflowlog.bicep
param name string
param location string = resourceGroup().location
param nsgId string
param storageId string
resource nsgFlowLogs 'Microsoft.Network/networkWatchers/flowLogs@2020-08-01' = {
name: 'NetworkWatcher_${location}/${name}'
location: location
properties: {
targetResourceId: nsgId
storageId: storageId
enabled: true
retentionPolicy: {
days: 2
enabled: true
}
format: {
type: 'JSON'
version: 2
}
}
}
and with that am able to switch the resource group during deployment:
module nsgFlow './nsgflowlog.bicep' = {
name: '${resourcePrefix}-nsgFlow'
scope: resourceGroup('NetworkWatcherRG')
params: {
name: nsgFlowName
nsgId: nsg.id
storageId: stg.id
}
}
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