[Modules] Updated Redis Cache Module - Added parameters to specify zone redundancy and availability zones

modules/cache/redis/.test/common/main.test.bicep

@@ -73,6 +73,8 @@ module testDeployment '../../main.bicep' = {
     enableNonSslPort: true
     lock: 'CanNotDelete'
     minimumTlsVersion: '1.2'
+    zoneRedundant: true
+    zones: [ 1, 2 ]
     privateEndpoints: [
       {
         privateDnsZoneGroup: {

modules/cache/redis/README.md

@@ -62,6 +62,8 @@ This module deploys a Redis Cache.
 | `tags` | object | `{object}` |  | Tags of the resource. |
 | `tenantSettings` | object | `{object}` |  | A dictionary of tenant settings. |
 | `userAssignedIdentities` | object | `{object}` |  | The ID(s) to assign to the resource. |
+| `zoneRedundant` | bool | `True` |  | When true, replicas will be provisioned in availability zones specified in the zones parameter. |
+| `zones` | array | `[]` |  | If the zoneRedundant parameter is true, replicas will be provisioned in the availability zones specified here. Otherwise, the service will choose where replicas are deployed. |
 
 
 ### Parameter Usage: `roleAssignments`
@@ -404,6 +406,11 @@ module redis './cache/redis/main.bicep' = {
     tags: {
       resourceType: 'Redis Cache'
     }
+    zoneRedundant: true
+    zones: [
+      1
+      2
+    ]
   }
 }
 ```
@@ -494,6 +501,15 @@ module redis './cache/redis/main.bicep' = {
       "value": {
         "resourceType": "Redis Cache"
       }
+    },
+    "zoneRedundant": {
+      "value": true
+    },
+    "zones": {
+      "value": [
+        1,
+        2
+      ]
     }
   }
 }

modules/cache/redis/main.bicep

@@ -94,6 +94,12 @@ param subnetId string = ''
 @description('Optional. A dictionary of tenant settings.')
 param tenantSettings object = {}
 
+@description('Optional. When true, replicas will be provisioned in availability zones specified in the zones parameter.')
+param zoneRedundant bool = true
+
+@description('Optional. If the zoneRedundant parameter is true, replicas will be provisioned in the availability zones specified here. Otherwise, the service will choose where replicas are deployed.')
+param zones array = []
+
 @description('Optional. Configuration details for private endpoints. For security reasons, it is recommended to use private endpoints whenever possible.')
 param privateEndpoints array = []
 
@@ -137,6 +143,8 @@ param diagnosticMetricsToEnable array = [
 @description('Optional. Enable telemetry via a Globally Unique Identifier (GUID).')
 param enableDefaultTelemetry bool = true
 
+var availabilityZones = skuName == 'Premium' ? zoneRedundant ? !empty(zones) ? zones : pickZones('Microsoft.Cache', 'redis', location, 3) : [] : []
+
 var diagnosticsLogsSpecified = [for category in filter(diagnosticLogCategoriesToEnable, item => item != 'allLogs'): {
   category: category
   enabled: true
@@ -211,7 +219,7 @@ resource redisCache 'Microsoft.Cache/redis@2021-06-01' = {
     subnetId: !empty(subnetId) ? subnetId : null
     tenantSettings: tenantSettings
   }
-  zones: skuName == 'Premium' ? pickZones('Microsoft.Cache', 'redis', location, 1) : null
+  zones: availabilityZones
 }
 
 resource redisCache_lock 'Microsoft.Authorization/locks@2020-05-01' = if (!empty(lock)) {