How to override local User Secrets and appsettings.json with Azure Container App's Secrets?

Question

I have an appsettings.json in my ASP.NET Core 6 Web API and a secrets.json I use for development connection strings, like below:

{
  "ConnectionStrings:MainDatabase": "CONNECTION STRING HERE"
}

After publishing my API as an Azure Container App, how can I override these connection strings from Azure?

I see the "Secrets" settings to configure a KeyVault, but how can I link those secrets to the User Secrets/appsettings used by my Web Api?

Answer 1

After updating or changing the User Secrets we need to restart or recreate the revision.

My Secrets:

Reading Secret Key:

public IActionResult Index()
{ 
  ViewBag.MyKey= Environment.GetEnvironmentVariable("mykey");
  return View();
}

Make sure the name of the key must be same as the local Secret name.

Even if you have secrets created in the Secrets section of the Azure Container App, you can see the Environment variables in Container Section is unavailable.

For the secrets to work, we need to map the secrets into the Environment variables.

• Click on Edit and deploy

Create new Revision

Click on the container image => Create Environment variables with mapping to the existing secrets =>Save => Refresh

Every time you make changes to the secrets in portal, If you don`t have the revision we need to create it or restart the existing Revision.

Use the below command to restart the revision.

az containerapp revision restart --resource-group "yourRG" --name "containerappname" --revision "revisionname"