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pre-cluster-stamp.bicep
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pre-cluster-stamp.bicep
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targetScope = 'resourceGroup'
/*** PARAMETERS ***/
@description('The regional network spoke VNet Resource ID that the cluster will be joined to')
@minLength(79)
param targetVnetResourceId string
@allowed([
'australiaeast'
'canadacentral'
'centralus'
'eastus'
'eastus2'
'westus2'
'francecentral'
'germanywestcentral'
'northeurope'
'southafricanorth'
'southcentralus'
'uksouth'
'westeurope'
'japaneast'
'southeastasia'
])
@description('AKS Service, Node Pools, and supporting services (KeyVault, App Gateway, etc) region. This needs to be the same region as the vnet provided in these parameters.')
@minLength(4)
param location string = 'eastus2'
@allowed([
'australiasoutheast'
'canadaeast'
'eastus2'
'westus'
'centralus'
'westcentralus'
'francesouth'
'germanynorth'
'westeurope'
'ukwest'
'northeurope'
'japanwest'
'southafricawest'
'northcentralus'
'eastasia'
'eastus'
'westus2'
'francecentral'
'uksouth'
'japaneast'
'southeastasia'
])
@description('For Azure resources that support native geo-redunancy, provide the location the redundant service will have its secondary. Should be different than the location parameter and ideally should be a paired region - https://learn.microsoft.com/azure/best-practices-availability-paired-regions. This region does not need to support availability zones.')
@minLength(4)
param geoRedundancyLocation string = 'centralus'
@description('The Base64 encoded AKS ingress controller\'s public certificate (as .crt or .cer) to be stored in Azure Key Vault as secret and referenced by Azure Application Gateway as a trusted root certificate.')
@minLength(35)
param aksIngressControllerCertificate string
/*** VARIABLES ***/
var subRgUniqueString = uniqueString('aks', subscription().subscriptionId, resourceGroup().id)
var clusterName = 'aks-${subRgUniqueString}'
var acrName = 'acraks${subRgUniqueString}'
/*** EXISTING RESOURCES ***/
@description('Built-in Azure RBAC role that is applied to a Key Vault to grant with secrets content read privileges. Granted to both Key Vault and our workload\'s identity.')
resource keyVaultSecretsUserRole 'Microsoft.Authorization/roleDefinitions@2022-04-01' existing = {
name: '4633458b-17de-408a-b874-0445c86b69e6'
scope: subscription()
}
@description('Built-in Azure RBAC role that is applied a Key Vault to grant with metadata, certificates, keys and secrets read privileges. Granted to App Gateway\'s managed identity.')
resource keyVaultReaderRole 'Microsoft.Authorization/roleDefinitions@2022-04-01' existing = {
name: '21090545-7ca7-4776-b22c-e363652d74d2'
scope: subscription()
}
@description('Spoke resource group')
resource spokeResourceGroup 'Microsoft.Resources/resourceGroups@2021-04-01' existing = {
scope: subscription()
name: '${split(targetVnetResourceId, '/')[4]}'
}
@description('The Spoke virtual network')
resource vnetSpoke 'Microsoft.Network/virtualNetworks@2022-01-01' existing = {
scope: spokeResourceGroup
name: '${last(split(targetVnetResourceId, '/'))}'
// Spoke virutual network's subnet for all private endpoints
resource snetPrivatelinkendpoints 'subnets' existing = {
name: 'snet-privatelinkendpoints'
}
// spoke virtual network's subnet for managment acr agent pools
resource snetManagmentCrAgents 'subnets' existing = {
name: 'snet-management-acragents'
}
}
resource pdzCr 'Microsoft.Network/privateDnsZones@2020-06-01' existing = {
scope: spokeResourceGroup
name: 'privatelink.azurecr.io'
}
resource pdzKv 'Microsoft.Network/privateDnsZones@2020-06-01' existing = {
scope: spokeResourceGroup
name: 'privatelink.vaultcore.azure.net'
}
/*** RESOURCES ***/
@description('The AKS cluster and related resources log analytics workspace.')
resource la 'Microsoft.OperationalInsights/workspaces@2021-12-01-preview' = {
name: 'la-${clusterName}'
location: location
properties: {
sku: {
name: 'PerGB2018'
}
retentionInDays: 90
publicNetworkAccessForIngestion: 'Enabled'
publicNetworkAccessForQuery: 'Enabled'
}
}
@description('The private container registry for the aks regulated cluster.')
resource acr 'Microsoft.ContainerRegistry/registries@2022-02-01-preview' = {
name: acrName
location: location
sku: {
name: 'Premium'
}
properties: {
adminUserEnabled: false
networkRuleSet: {
defaultAction: 'Deny'
ipRules: []
}
policies: {
quarantinePolicy: {
status: 'disabled'
}
trustPolicy: {
type: 'Notary'
status: 'enabled'
}
retentionPolicy: {
days: 15
status: 'enabled'
}
}
publicNetworkAccess: 'Disabled'
encryption: {
status: 'disabled'
}
dataEndpointEnabled: true
networkRuleBypassOptions: 'AzureServices'
zoneRedundancy: 'Enabled'
}
resource grl 'replications' = {
name: geoRedundancyLocation
location: geoRedundancyLocation
}
resource ap 'agentPools@2019-06-01-preview' = {
name: 'acragent'
location: location
properties: {
count: 1
os: 'Linux'
tier: 'S1'
virtualNetworkSubnetResourceId: vnetSpoke::snetManagmentCrAgents.id
}
}
}
resource cr_diagnosticSettings 'Microsoft.Insights/diagnosticSettings@2021-05-01-preview' = {
scope: acr
name: 'default'
properties: {
workspaceId: la.id
metrics: [
{
timeGrain: 'PT1M'
category: 'AllMetrics'
enabled: true
}
]
logs: [
{
category: 'ContainerRegistryRepositoryEvents'
enabled: true
}
{
category: 'ContainerRegistryLoginEvents'
enabled: true
}
]
}
}
@description('The network interface in the spoke vnet that enables privately connecting the AKS cluster with Container Registry.')
resource peCr 'Microsoft.Network/privateEndpoints@2022-05-01' = {
name: 'pe-${acr.name}'
location: location
properties: {
subnet: {
id: vnetSpoke::snetPrivatelinkendpoints.id
}
privateLinkServiceConnections: [
{
name: 'to-${vnetSpoke.name}'
properties: {
privateLinkServiceId: acr.id
groupIds: [
'registry'
]
}
}
]
}
dependsOn: [
acr::grl
]
resource pdzg 'privateDnsZoneGroups' = {
name: 'for-${acr.name}'
properties: {
privateDnsZoneConfigs: [
{
name: 'privatelink-azurecr-io'
properties: {
privateDnsZoneId: pdzCr.id
}
}
]
}
}
}
@description('The scheduled query that returns images being imported from repositories different than quarantine/')
resource sqrNonQuarantineImportedImgesToCr 'Microsoft.Insights/scheduledQueryRules@2022-06-15' = {
name: 'Image Imported into ACR from ${acr.name} source other than approved Quarantine'
location: location
properties: {
description: 'The only images we want in live/ are those that came from this ACR instance, but from the quarantine/ repository.'
actions: {
actionGroups: []
}
criteria: {
allOf: [
{
operator: 'GreaterThan'
query: 'ContainerRegistryRepositoryEvents\r\n| where OperationName == "importImage" and Repository startswith "live/" and MediaType !startswith strcat(_ResourceId, "/quarantine")'
threshold: 0
timeAggregation: 'Count'
dimensions: []
failingPeriods: {
minFailingPeriodsToAlert: 1
numberOfEvaluationPeriods: 1
}
resourceIdColumn: ''
}
]
}
enabled: true
evaluationFrequency: 'PT10M'
scopes: [
acr.id
]
severity: 3
windowSize: 'PT10M'
muteActionsDuration: null
overrideQueryTimeRange: null
}
dependsOn: [
cr_diagnosticSettings
]
}
@description('The secret storage management resource for the AKS regulated cluster.')
resource kv 'Microsoft.KeyVault/vaults@2022-07-01' = {
name: 'kv-${clusterName}'
location: location
properties: {
accessPolicies: [] // Azure RBAC is used instead
sku: {
family: 'A'
name: 'standard'
}
tenantId: subscription().tenantId
networkAcls: {
bypass: 'AzureServices' // Required for AppGW communication
defaultAction: 'Deny'
ipRules: []
virtualNetworkRules: []
}
enableRbacAuthorization: true
enabledForDeployment: false
enabledForDiskEncryption: false
enabledForTemplateDeployment: false
enableSoftDelete: true
softDeleteRetentionInDays: 7
createMode: 'default'
}
}
@description('The in-cluster ingress controller identity used by the pod identity agent to acquire access tokens to read SSL certs from Azure Key Vault.')
resource miIngressController 'Microsoft.ManagedIdentity/userAssignedIdentities@2022-01-31-preview' = {
name: 'mi-${clusterName}-ingresscontroller'
location: location
}
@description('Grant the ingress controller\'s managed identity with Key Vault secrets user role permissions; this allows pulling secrets from Key Vault.')
resource kvMiIngressControllerSecretsUserRole_roleAssignment 'Microsoft.Authorization/roleAssignments@2022-04-01' = {
scope: kv
name: guid(resourceGroup().id, miIngressController.name, keyVaultSecretsUserRole.id)
properties: {
roleDefinitionId: keyVaultSecretsUserRole.id
principalId: miIngressController.properties.principalId
principalType: 'ServicePrincipal'
}
}
@description('Grant the ingress controller\'s managed identity with Key Vault reader role permissions; this allows pulling frontend and backend certificates.')
resource kvMiIngressControllerKeyVaultReader_roleAssignment 'Microsoft.Authorization/roleAssignments@2022-04-01' = {
scope: kv
name: guid(resourceGroup().id, miIngressController.name, keyVaultReaderRole.id)
properties: {
roleDefinitionId: keyVaultReaderRole.id
principalId: miIngressController.properties.principalId
principalType: 'ServicePrincipal'
}
}
resource kvsAppGwIngressInternalAksIngressTls 'Microsoft.KeyVault/vaults/secrets@2021-11-01-preview' = {
parent: kv
name: 'agw-ingress-internal-aks-ingress-contoso-com-tls'
properties: {
value: aksIngressControllerCertificate
}
dependsOn: [
miIngressController
]
}
resource kv_diagnosticSettings 'Microsoft.Insights/diagnosticSettings@2021-05-01-preview' = {
scope: kv
name: 'default'
properties: {
workspaceId: la.id
logs: [
{
category: 'AuditEvent'
enabled: true
}
]
metrics: [
{
category: 'AllMetrics'
enabled: true
}
]
}
}
@description('The network interface in the spoke vnet that enables privately connecting the AKS cluster with Key Vault.')
resource peKv 'Microsoft.Network/privateEndpoints@2022-01-01' = {
name: 'pe-${kv.name}'
location: location
properties: {
subnet: {
id: vnetSpoke::snetPrivatelinkendpoints.id
}
privateLinkServiceConnections: [
{
name: 'to-${vnetSpoke.name}'
properties: {
privateLinkServiceId: kv.id
groupIds: [
'vault'
]
}
}
]
}
resource pdzg 'privateDnsZoneGroups' = {
name: 'for-${kv.name}'
properties: {
privateDnsZoneConfigs: [
{
name: 'privatelink-akv-net'
properties: {
privateDnsZoneId: pdzKv.id
}
}
]
}
}
}
/*** OUTPUTS ***/
output quarantineContainerRegistryName string = acr.name
output containerRegistryName string = acr.name
output keyVaultName string = kv.name
output ingressClientid string = miIngressController.properties.clientId