Pass JSON array to Bicep file from Azure pipeline

[Eirik Kjærnli (eirikfk)]

I'm trying to pass a JSON array from my Azure pipeline into a Bicep file using the format outlined here.

The JSON array looks like this:

[{"ip":"11.222.333.1/32","description":"Desc 1"},{"ip":"11.222.444.1/32","description":"Desc 2"}]

To ensure the format is correct, I have currently defined the JSON string directly in the Bicep file as follows:

param ipAddressesString string = '[[{\'ip\':\'11.222.333.1/32\',\'description\':\'Desc 1\'},{\'ip\':\'11.222.444.1/32\',\'description\':\'Desc 2\'}]]'

To read it, I'm using the following syntax that fails:
var ipAddressesArray = json(ipAddressesString)

This results in the following error:

WARNING: The configuration value of bicep.use_binary_from_path has been set to 'false'.
ERROR: {
  "error": {
    "code": "InvalidTemplate",
    "message": "Deployment template validation failed: 'The template variable 'ipAddressesArray' is not valid: Unable to evaluate the template language function 'json'. The argument provided is not a valid JSON string.. Please see https://aka.ms/arm-functions for usage details.'.",
    "additionalInfo": [
      {
        "type": "TemplateViolation",
        "info": {
          "lineNumber": 1,
          "linePosition": 3479,
          "path": "properties.template.variables.ipAddressesArray"
        }
      }
    ]
  },
  "properties": {}
}

What am I doing wrong?

[Magnus Olai Aarvold (magnusoaarvold)]

I have also come upon this problem which I could not solve. Would be great if someone could find a solution here!

[Alexander Tuttle (acatuttle)]

I tried the solution described here and it works for my case:

- task: AzureCLI@2
  displayName: What-If Deploy Dev
  inputs:
    azureSubscription: $(azureServiceConnectionDev)
    scriptType: pscore
    scriptLocation: inlineScript
    inlineScript: >
      $functionAppNames = $(az functionapp list --query "[].name" -o json) -replace '"', "'"; 
      az deployment group create 
      --resource-group rg-my-resource-group
      --name WhatIf-$(Build.BuildNumber) 
      --template-file "$(Build.ArtifactStagingDirectory)/main.bicep" 
      --parameters 
      env=dev 
      functionAppNames="$functionAppNames" 
      --what-if

[Matthew Parsons (OranguTech)]

FIWW, Using standalone bicep.exe v0.39.26.0, your example works perfectly for me in the bicep console.

"The configuration value of bicep.use_binary_from_path has been set to 'false'" means you're using the extension via AzCLI - might that have been out of date?

Also, you may find passing json via files to be easier, in which case use the loadjsoncontent function.

var AccessRules = loadJsonContent('./accessRules/DevTest.json')