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Var keyVaultTokenProvider = new AzureServiceTokenProvider().KeyVaultTokenCallback (I did not go into the weeds of storing the Uri as a configration because that will depend on the framework you choose).
#Keyvault validator install
It’s really simple to retrieve the values from the vault in code.įirst install the NuGet package then use some simple code to connect and retrieve a value from your KeyVault To do that, you need to go back to the KeyVault and use the Access Policies blade to assign permissions. You can set appropriate permsissions for that identity in the Keyvault so that code running on that app service will be able to access secrets in the KeyVault When you enable Managed Service Identity, you are essentially creating a managed Azure Active Directory identity and associate it to your serivce. We achieve that though the ‘Managed Identity’ feature found in the Web App (also available for Azure Functions). Only directory accounts can access the keyvault so we will need to create that. Essentially, when the code is running, the application will need to access the keyvault to read the secrets - in our case the CosmosDB access key - in order to establish a connection to the database. The sencond piece we’ll configure is the App service that we will deploy the application on. We will get back to the KeyVault later, to assign the required permissions. The database and collection can live as simple config settings as they are more likely to change across environments and by themselves they usually don’t provide any information if exposed. I usually store the CosmosDB Key and the endpoint in the Keyvault because these are the most sensitive pieces of information. Let’s create a KeyVault, and add the secrets in the ‘Secrets’ section. To get to those secrets, you need to have a valid directory account, and have permissions to read data from KeyVault. Azure KeyVault is a service backed up by dedicated Hardware Security Modules (HSM) that keep your secrets, secret. Invariably, at some point it will get into your source control, and that’s just asking for trouble down the line because it’s way harder to restrict access to sensitive information in source control.įortunately, there’s an easy (?) way to deal with this problem and it involves a few built-in Azure features like Azure KeyVault and Managed Identity. Which means you are essentially taking your most critical piece of defense (your authentication key) and copying it somewhere in your code or configuration. However, most if not all of them, will at somepoint say. There are tons of tutorials and sample code that shows how you can easily connect your code to ComsosDb and start coding. Working with CosmosDB in your applcation is pretty easy.