Bicep - Pair arrays with loops - azure

Question

My case is that I have a list of companies, as well as a list of queues that I want to pair together in my bicep file. I want to use the result to add queues to an service bus namespace.
This is an example of the queue array:
`var queues = [
'first-queue'
'second-queue'
'third-queue'
]``
And this is an example of the company array:
`var companies = [
'apple'
'intel'
'blizzard'
]``
I would like to loop through the company list with bicep syntax and insert the company name before each queue. In this case i want to have a result like bwlow:
`var res = [
'apple-first-queue'
'apple-second-queue'
'apple-third-queue'
'intel-first-queue'
'intel-second-queue'
'intel-third-queue'
'blizzard-first-queue'
'blizzard-second-queue'
'blizzard-third-queue'
]`
I've tried a few different ways but can't get it to work. This is my latest attempt below where I get an error message regarding the syntax of "queuesToCreate" in the form of* "Directly referencing a resource or module collection is not currently supported. Apply an array indexer to the expression"*.
Does anyone see what I'm doing wrong here and can point me in the right direction?
`// ## Service bus multiple companies module ## //
module queuesToCreate 'service-bus-loop.bicep' = [for company in companies: {
name: 'multipleQueues-${company}'
params: {
company: company
}
}]
`
``// ## Service bus namespace ## //
resource serviceBusNamespace 'Microsoft.ServiceBus/namespaces#2022-01-01-preview' = {
name: serviceBusNamespaceName
location: location
sku: {
name: skuName
}
}
// ## Queues ## //
resource queues 'Microsoft.ServiceBus/namespaces/queues#2022-01-01-preview' = [for queueName in queuesToCreate: {
parent: serviceBusNamespace
name: queueName
properties: {
maxDeliveryCount: 1
lockDuration: 'PT5M'
}
}]`
This service-bus-loop.bicep file look like below and just returns an array as output
param company string
`// Create an array with the names of the queues
var queues = [
'${company}-queue'
'${company}-queue'
'${company}-queue'
]
output res array = queues`
queuesToCreate variable has in above case an syntax error like "Directly referencing a resource or module collection is not currently supported. Apply an array indexer to the expression."

Answer 1

As suggested in the comment section, you could always use a module to create all the queues for a specific company.
// service-bus-queues.bicep
param serviceBusNamespaceName string
param company string
param queues array
resource serviceBusNamespace 'Microsoft.ServiceBus/namespaces#2022-01-01-preview' existing = {
name: serviceBusNamespaceName
}
resource queuesToCreate 'Microsoft.ServiceBus/namespaces/queues#2022-01-01-preview' = [for queue in queues: {
parent: serviceBusNamespace
name: '${company}-${queue}'
properties: {
maxDeliveryCount: 1
lockDuration: 'PT5M'
}
}]
Then from you main, loop through companies.
// main.bicep
param serviceBusNamespaceName string
param location string
param skuName string
var queues = [
'first-queue'
'second-queue'
'third-queue'
]
var companies = [
'apple'
'intel'
'blizzard'
]
resource serviceBusNamespace 'Microsoft.ServiceBus/namespaces#2022-01-01-preview' = {
name: serviceBusNamespaceName
location: location
sku: {
name: skuName
}
}
module queuesToCreate 'service-bus-queues.bicep' = [for company in companies: {
name: 'multipleQueues-${company}'
params: {
serviceBusNamespaceName: serviceBusNamespace.name
company: company
queues: queues
}
}]