use workaround

config/config.msft.yaml

@@ -33,7 +33,7 @@ defaults:
       istioctlVersion: "1.24.1"
       tag: "prod-stable"
       targetVersion: "asm-1-23"
-      versions: ["\"asm-1-22\"", "\"asm-1-23\""]
+      versions: "asm-1-22,asm-1-23"
 
   # MGMT cluster specifics
   mgmt:

config/config.schema.json

@@ -674,8 +674,8 @@
                 "type": "string"
               },
               "versions": {
-                "description": "The current istio version in the AKS cluster",
-                "type": "array"
+                "description": "The current istio version in the AKS cluster, will need to change to array once tooling is ready",
+                "type": "string"
               },
               "targetVersion": {
                 "description": "The target istio version that will be updated to",

dev-infrastructure/configurations/svc-cluster.tmpl.bicepparam

@@ -1,7 +1,7 @@
 using '../templates/svc-cluster.bicep'
 
 param kubernetesVersion = '{{ .kubernetesVersion }}'
-param istioVersion = {{ .svc.istio.versions }}
+param istioVersion = ['{{ .svc.istio.versions }}']
 param vnetAddressPrefix = '{{ .vnetAddressPrefix }}'
 param subnetPrefix = '{{ .subnetPrefix }}'
 param podSubnetPrefix = '{{ .podSubnetPrefix }}'

dev-infrastructure/templates/svc-cluster.bicep

@@ -143,7 +143,7 @@ resource serviceKeyVault 'Microsoft.KeyVault/vaults@2024-04-01-preview' existing
   name: serviceKeyVaultName
   scope: resourceGroup(serviceKeyVaultResourceGroup)
 }
-
+var istio = split(istioVersion[0], ', ')
 // Tags the resource group
 resource subscriptionTags 'Microsoft.Resources/tags@2024-03-01' = {
   name: 'default'
@@ -166,7 +166,7 @@ module svcCluster '../modules/aks-cluster-base.bicep' = {
     aksEtcdKVEnableSoftDelete: aksEtcdKVEnableSoftDelete
     kubernetesVersion: kubernetesVersion
     deployIstio: true
-    istioVersion: istioVersion
+    istioVersion: istio
     vnetAddressPrefix: vnetAddressPrefix
     subnetPrefix: subnetPrefix
     podSubnetPrefix: podSubnetPrefix