How to return output of module

Problem

I’m using For Loop to create two Azure App Services and two App Service Plans, but I need to pass the HostingPlanID from the AppService plan to each of the App Services, but I can’t get to the module’s output.

This is the error I’m getting: Property of type “module[]” cannot be accessed. It’s necessary to use a “object” type.

I’m creating an output output hostingPlanId string = hostingPlan.id within my App Service Plan Module.

However, I am unable to reference this in my template (main.bicep)

hostingPlan: AppServicePlan.hostingPlan.id

Module:

param appPlanSkuCode string
param appPlanSkuTier string
param appPlanOS string
param appPlanSize string
param appPlanFamily string
param appPlanCapacity int
param hostingPlanName string



resource hostingPlan 'Microsoft.Web/serverfarms@2020-10-01' = {
  name: hostingPlanName
  location: resourceGroup().location
  kind: appPlanOS
  sku: {
    name: appPlanSkuCode
    tier: appPlanSkuTier
    size: appPlanSize
    family: appPlanFamily
    capacity: appPlanCapacity
  }
  properties: {
    perSiteScaling: false
    maximumElasticWorkerCount: 1
    isSpot: false
    reserved: true
    isXenon: false
    hyperV: false
    targetWorkerCount: 0
    targetWorkerSizeId: 0

  }
}

output hostingPlanId string = hostingPlan.id

Template:

module AppService '../../Modules/Azure.App.Service.template.bicep'  = [for i in range(0, length(webAppSettings.webApps)): {
  name: webAppSettings.webApps[i].appServiceType == 'functionApp' ? toLower('fnc-${webAppSettings.webApps[i].name}-${resourceGroupNameSuffix}') : toLower('web-${webAppSettings.webApps[i].name}-${resourceGroupNameSuffix}')
  dependsOn: [
    AppServicePlan
  ]
  params: {
    hostingPlan: AppServicePlan.hostingPlan.id
    webAppSettings:webAppSettings
    vnetSubnetID:webAppSettings.webApps[i].appPurpose == 'backend' ? '${backendvnetSubnetID}' : '${frontendvnetSubnetID}'
    appServiceName:webAppSettings.webApps[i].appServiceType == 'functionApp' ? toLower('fnc-${webAppSettings.webApps[i].name}-${resourceGroupNameSuffix}') : toLower('web-${webAppSettings.webApps[i].name}-${resourceGroupNameSuffix}')
    appServiceType: webAppSettings.webApps[i].appServiceType
    LinuxFXVersion: webAppSettings.webApps[i].LinuxFX
  }
}]

I’m not sure where I’m going wrong.

Thanks

Asked by JacksWastedLife

Solution #1

If you have a hostingPlan.bicep file, you may use the following syntax to refer to it from the main.bicep file:

module hostingPlan 'hostingPlan.bicep' = {
  name: 'hostingPlan'
  params: {
    ...
  }
}

The module’s outputs can then be accessed:

hostingPlan.outputs.hostingPlanId

Answered by Thomas

Post is based on https://stackoverflow.com/questions/70550083/how-to-return-output-of-module