Lookup string in object using outputs

[dkooll]

Hi, i want to get a subnetid from a object using outputs. The below is working using the value 0. Using this index it takes the
subnet i want.

output subnetmgtId string = vnet.properties.subnets[0].id

The below object is used:

param networkParams object = {
  vnetName: 'vnet-example-01'
  vnetCidr: '10.0.0.0/16'
  location: 'westeurope'
  snMap: {
    subnets: [
      {
        name: 'snet1'
        cidr: '10.0.1.0/24'
      }
      {
        name: 'snet2'
        cidr: '10.0.2.0/24'
      }
    ]
  }
}

The below contains the vnet / subnet resource that's referencing the object

resource vnet 'Microsoft.Network/virtualNetworks@2020-05-01' = {
  name: networkParams.vnetName
  location: networkParams.location
  properties: {
    addressSpace: {
      addressPrefixes: [
        networkParams.vnetCidr
      ]
    }
    subnets: [for (sn, i) in networkParams.snMap.subnets : {
      name: sn.name
      properties: {
        addressPrefix: sn.cidr
      }
  }]
  }
}

My question is when i use outputs can i lookup the subnet by name instead of using the index numbers?

[alex-frankel]

Unfortunately, there is not an optimal way to do this today. Are you looking to get the resource Id of the subnets? One common option is to construct an output like so:

output snet1Id string = '${vnet.id}/subnets/snet1'

There is a proposal to manage subnets exclusively as child resources instead of an array property on the parent vnet that would make this easier, but no ETA for if/when that would be completed.

[dkooll]

Hi, @alex-frankel, thanks for your answer. It's not ideal indeed, but this is allot better. At least i am able to use names.
In my opinion a function should be created for this. For example lookup()