How to control development prod staging application settings using azure functions

Question

I want to control app settings using azure functions depending upon the environment it is in. I want to change between the appsettings.json file, for eg if it's the development environment, the appsettings.development.json file be used.

From what I've read in the docs I can see that you can set up config in the azure portal but can't find anything to set it in the solution. Is there any way to manage these build environments?

Answer 1

You should use a build-release system like VSTS. Try creating an ARM template of your app and deploy this pipeline with VSTS. You can add value to the template.json file like here:

"appSettings": [
    // other entries
    {
        "name": "MyValue",
        "value": "[parameters('myValue')]"
    }

You'll require parameters.json which will hold the values:

{
    "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
    "contentVersion": "1.0.0.0",
    "parameters": {
        "name": {},
        "storageName": {},
        "location": {},
        "subscriptionId": {}
    }
}

And change the values of these parameters in VSTS portal.

This way you'll be able to implement a CI/CD pipeline used by professional sys admins.