How to reference already existing Azure Portal created storage accounts in an ARM template

Question

I want to create a function app with ARM template such that the ARM template references already existing storage accounts (inputstgdev and outputstgdev) which I have already parameterized. I would like the ARM template to use the inputstgdev storage account as its attached storage account such that it does not have to create a new storage account. The source control of the function app is referenced to a Gitrepo which I have also parameterized in the ARM template. Each time I run the ARM template I get the following error message

##[error]Deployment template validation failed: 'The resource '/subscriptions/bea8ac84-24a4-4e53-9198-e3b0107547d4/resourceGroups/dev-rgp/providers/Microsoft.Web/sites/functionapp/sourcecontrols/web' at line '1' and column '3069' doesn't depend on parent resource '/subscriptions/bea8ac84-24a4-4e53-9198-e3b0107547d4/resourceGroups/dev-rgp/providers/Microsoft.Web/sites/functionapp'. Please add dependency explicitly using the 'dependsOn' syntax. Please see aka.ms/arm-template/#resources for

Any suggestions what the issue might be or possible solutions. I look forward to your response

{
"$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
"contentVersion": "1.0.0.0",
"parameters": {
    "InputstorageAccount": {
        "defaultValue": "inputstgdev",
        "type": "String"
    },
    "GitrepoBranch": {
       "type": "string",
       "defaultValue": "master",
       "metadata": {
            "description": "Name of the branch to use when deploying (Default = master)."
        }
    },
    "GitrepoURL": {
       "type": "string",
       "defaultValue": "https://github.com/FBoucher/AzUnzipEverything.git",
       "metadata": {
            "description": "URL to repo (Default = master)."
        }
    },
    "InputcontainerName": {
      "type": "string",
      "defaultValue": "inputcontainer",
      "metadata": {
        "description": "Specifies the name of the blob container."
      }
    },
    "OutputstorageAccount": {
        "defaultValue": "outputstgdev",
        "type": "String"
    },
    "OutputcontainerName": {
      "type": "string",
      "defaultValue": "outputcontainer",
      "metadata": {
        "description": "Specifies the name of the blob container."
      }
    }
},
"variables": {},
"resources": [
    {
        "type": "Microsoft.Storage/storageAccounts/blobServices/containers",
        "apiVersion": "2019-06-01",
        "name": "[concat(parameters('InputstorageAccount'), '/default/', parameters('InputcontainerName'))]",
        "properties": {
            "publicAccess": "None"
        }
    },
    {
        "type": "Microsoft.Storage/storageAccounts/blobServices/containers",
        "apiVersion": "2019-06-01",
        "name": "[concat(parameters('OutputstorageAccount'), '/default/', parameters('OutputcontainerName'))]",
        "properties": {
            "publicAccess": "None"
        }
    },
    {
        "name": "serviceplan",
        "type": "Microsoft.Web/serverfarms",
        "apiVersion": "2018-02-01",
        "location": "[resourceGroup().location]",
        "sku": {
            "name": "F1",
            "capacity": 1
        },
        "tags": {
            "displayName": "serviceplan"
        },
        "properties": {
            "name": "serviceplan"
        }
    },
    {
        "name": "functionapp",
        "type": "Microsoft.Web/sites",
        "apiVersion": "2018-11-01",
        "location": "[resourceGroup().location]",
        "kind": "functionapp",
        "dependsOn": [
            "[resourceId('Microsoft.Web/serverfarms', 'serviceplan')]",
            "[resourceId('Microsoft.Storage/storageAccounts', parameters('InputstorageAccount'))]"
        ],
        "properties": {
            "serverFarmId": "[resourceId('Microsoft.Web/serverfarms', 'serviceplan')]",
            "siteConfig": {
                "appSettings": [
                    {
                        "name": "AzureWebJobsDashboard",
                        "value": "[concat('DefaultEndpointsProtocol=https;AccountName=', parameters('InputstorageAccount'), ';AccountKey=', listKeys(parameters('InputcontainerName'),'2015-05-01-preview').key1)]"
                    },
                    {
                        "name": "AzureWebJobsStorage",
                        "value": "[concat('DefaultEndpointsProtocol=https;AccountName=', parameters('InputstorageAccount'), ';AccountKey=', listKeys(parameters('InputcontainerName'),'2015-05-01-preview').key1)]"
                    },
                    {
                        "name": "WEBSITE_CONTENTAZUREFILECONNECTIONSTRING",
                        "value": "[concat('DefaultEndpointsProtocol=https;AccountName=', parameters('InputstorageAccount'), ';AccountKey=', listKeys(parameters('InputcontainerName'),'2015-05-01-preview').key1)]"
                    },
                    {
                        "name": "WEBSITE_CONTENTSHARE",
                        "value": "[toLower('functionapp')]"
                    },
                    {
                        "name": "FUNCTIONS_EXTENSION_VERSION",
                        "value": "~2"
                    },
                    {
                        "name": "APPINSIGHTS_INSTRUMENTATIONKEY",
                        "value": "[reference(resourceId('microsoft.insights/components/', 'applicationInsightsName'), '2015-05-01').InstrumentationKey]"
                    },
                    {
                        "name": "FUNCTIONS_WORKER_RUNTIME",
                        "value": "dotnet"
                    }
                ]
            }
        },
        "resources":[
            {
                "apiVersion": "2015-08-01",
                "name": "web",
                "type": "sourcecontrols",
                "dependsOn": [
                  "[resourceId('Microsoft.Web/sites/', parameters('InputstorageAccount'))]"
                ],
                "properties": {
                    "RepoUrl": "[parameters('GitrepoURL')]",
                    "branch": "[parameters('GitrepoBranch')]",
                    "publishRunbook": true,
                    "IsManualIntegration": true
                }
            }
        ]

    }
]

}

Answer 1

You encountered this error message due to the wrong dependency.

You should use "[resourceId('Microsoft.Web/sites/', 'functionapp')]" instead of "[resourceId('Microsoft.Web/sites/', parameters('InputstorageAccount'))]".

And you should delete the storage dependency.

"[resourceId('Microsoft.Storage/storageAccounts', parameters('InputstorageAccount'))]"

By the way, as you already have a storage account, you just need to paste your connection string in the value of AzureWebJobsStorage and AzureWebJobsDashboard.

Just like

{
    "name": "AzureWebJobsDashboard",
    "value": "{connectionstring}"
}