ServiceBusNamespace is invalid at deploy - azure

Question

Im trying to deploy a ServiceBus through an ARM template. I ive tried all these versions as the serviceBusNamespaceName value with the same error message:
Not working (using resource group named: 'INT001-TestOrderStore-Cert' ) :
"[concat('INT1001-ServiceBus-', uniqueString(resourceGroup().id))]"
"[concat('INT1001-ServiceBus', uniqueString(resourceGroup().id))]"
"[concat('INT1001-MyOwnName', uniqueString(resourceGroup().id))]"
"[concat('int1001-myownname', uniqueString(toLower(resourceGroup().id))]"
but always get the same error message:
2020-03-22T11:54:07.2612863Z ##[error]BadRequest: {
"error": {
"message": "The specified service namespace is invalid. CorrelationId: 43105e81-4248-41d6-ba91-9070e8ac4637",
"code": "BadRequest"
}
}
This is the only one that has worked so far:
"sbnslau-1fa155e2-b3fb-48b9-a204-af1d2a02f40c"
So i need to understand what is going wrong when i try to use concat and unique string. Is there anyway in the azure portal i can evaluate the expression to se what it resolves too?
This is what my ARM looks like:
sbArmDeploy.json
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"serviceBusNamespaceName": {
"type": "string",
"metadata": {
"description": "Name of the Service Bus namespace"
}
},
"location": {
"type": "string",
"defaultValue": "[resourceGroup().location]",
"metadata": {
"description": "Location for all resources."
}
}
},
"variables": {},
"resources": [
{
"apiVersion": "2017-04-01",
"name": "[parameters('serviceBusNamespaceName')]",
"type": "Microsoft.ServiceBus/namespaces",
"location": "[parameters('location')]",
"sku": {
"name": "Standard",
"tier": "Standard"
}
}
],
"outputs": {}
}
SbArmDeploy-Parameters.json
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"serviceBusNamespaceName": {
"value": "sbns_1fa155e2-b3fb-48b9-a204-af1d2a02f40c"
}
}
}

Answer 1

When I try to create a Service Bus Namespace using the name you provided (sbns_1fa155e2-b3fb-48b9-a204-af1d2a02f40c) in Azure Portal, I got the following error:
The namespace can contain only letters, numbers, and hyphens. The
namespace must start with a letter, and it must end with a letter or
number
Basically the issue is that you have an underscore (_) in the namespace name which is not allowed. Please remove that or change that to a hyphen (-) and you will not get the error.
You can find the naming rules for a Service Bus Namespace here: https://learn.microsoft.com/en-us/rest/api/servicebus/create-namespace.
As discussed in the comments, the problem is coming because you're defining a variable in parameters file. What you would need to do is define them in variables section in your main template file.
For example, here're the ArmDeploy.json and Parameters.json files I used:
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"location": {
"defaultValue": "[resourceGroup().location]",
"type": "String",
"metadata": {
"description": "Location for all resources."
}
}
},
"variables": {
"serviceBusNamespaceName": "[concat('INT1001-ServiceBus-', uniqueString(resourceGroup().id))]"
},
"resources": [
{
"type": "Microsoft.ServiceBus/namespaces",
"apiVersion": "2017-04-01",
"name": "[variables('serviceBusNamespaceName')]",
"location": "[parameters('location')]",
"sku": {
"name": "Standard",
"tier": "Standard"
}
}
],
"outputs": {}
}
{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
"contentVersion": "1.0.0.0",
"parameters": {
"location": {
"value": "eastus"
}
}
}