I have my database connection string stored in Azure Key Vault as a secret. My SSIS package which is on-premises needs to read connection string from Azure Key Vault.
Usually, when I configure my SSIS package, I configure my connection string at development time and wondering how I can connect Azure Key Vault and consume a secret.
We can connect to Azure key vault from SSIS using ZappySys(Rest API Task).
Need to have below Azure key vault related information.
App registration name
Client ID
App Client Secret
Redirect URI
SecretName
subscription
Related
I need to download a certificate from azure vault. When I use this method, CertificateClient.DownloadCertificateAsync local it works. However, when a publish to Azure I get this message Unhandled exception. System.Exception: Creating JWT bearer token failed.
System.Security.Cryptography.CryptographicException: The system cannot find the file specified. Is the problem I don't have access to key vault or I cant "download" the certification the file system/environment. I want to say it is the file system because it runs on my local machine. Any suggestions on how to troubleshoot?
The error message indicates that you may have a problem with accessing your Azure Key Vault and/or downloading the certificate.
To troubleshoot the error, you can check the below steps:
Verify that the Certificate is not Expired.
Check whether you have the proper permissions to access the Azure Key Vault and download the certificate.
Ensure that the certificate exists in your Azure Key Vault and that the name and version are correct.
Also check that you have the correct connection details for your Azure Key Vault, including the correct URL, subscription ID, and tenant ID.
Check the network connection to your Azure Key Vault to make sure that it is accessible.
Try accessing the Azure Key Vault using the Azure CLI or Azure portal to see if the issue is with your code or with the Azure Key Vault.
If you continue to experience issues, you may want to look at the logs or event viewer to see if they provide any additional information.
C# Code to Download the Azure KeyVault Certificate
ClientSecretCredential clientCredential = new ClientSecretCredential(tenantId, clientId, clientSecret);
var secretClient = new SecretClient(new Uri(keyVaultAddress), clientCredential);
var response = await secretClient.GetSecretAsync(certificateName);
var keyVaultSecret = response?.Value;
if (keyVaultSecret != null)
{
var privateKeyBytes = Convert.FromBase64String(keyVaultSecret.Value);
return new X509Certificate2(privateKeyBytes);
}
return null;
Azure CLI Command to download Key Vault Certificate.
az keyvault certificate download --vault-name YourKeyVaultName -n cert-name -e `DER/PEM`
Steps to publish a console program as a web job in Azure :
Package your console program as a deployment package, this is usually a ZIP file that contains the compiled executable and all its dependencies.
Create a web job in Azure App Service using Azure portal or using the Azure CLI /Powershell.
When you create the web job, you have to specify the type of web job - continuous or triggered, the deployment package, and any configuration settings.
Start the web job using Azure portal, the Azure CLI, or Azure Powershell. You can also configure the web job to start automatically when the App Service starts.
References taken from DownloadCertificateAsync Method and az keyvault certificate
I have a Console application right now that's pulling in some API key's from Azure Key Vault. This console app is a service that's going to be run nightly on a local Windows Server instance.
I'm not sure where to store the Azure Client Secret. Right now it's in app settings.json however Microsoft notes that this shouldn't be stored in plain text but I'm at a loss as where I should store it in production.
Check the below steps to create new client secret and store/update the values in Azure Key Vault.
In Azure Portal, Navigate to the Azure Active Directory => App Registrations .
If you have already deployed your Console App, then you can find the deployed ap name in the App Registrations.
If you don't find, click on New App Registration .
Create client secret
Navigate to your Application from App registration =>Certificates & secrets => click on New client secret.
Copy the Secret ID for later use (need to update this value for Key Vault secret value).
Storing the Client secret in Azure Key Vault
Navigate to your Azure Key Vault.
You can update the value of the existing Key Vault or create new one and use it.
Iam creating the new secret.
Navigate to your Key Vault => Secrets => click on Generate /Import.
Paste the Secret ID from previous step in place of Secret value.
Newly created Secret
Copy the Secret Identifier from the newly created secret (this has to be updated in Azure App Service=> Configuration App Settings).
Deploy your Console App to Azure App Service.
Navigate to your Azure App Service => Configuration => Application Settings.
Add the new Application Settings with the Secret Identifier Value.
References taken from MSDoc
I am using Azure Web App service. Currently, I am storing the plain connection string to the database, Azure storage in the Application Settings section in the configuration tab of the Web App Service.
Instead of storing the plain connection string in configuration. How can I store the connection string in Azure Vault, then reference it in the Application setting so that the plain connection string are not stored in the configuration settings?
There are two ways to reference Key Vault in Azure Web Apps. You can do a complete reference:
#Microsoft.KeyVault(SecretUri=https://myvault.vault.azure.net/secrets/mysecret/)
Or you can use the alterative:
#Microsoft.KeyVault(VaultName=myvault;SecretName=mysecret)
In order to read secrets from Key Vault, you need to have a vault created and give your app permission to access it.
Create a key vault by following the Key Vault quickstart.
Create a managed identity for your application.
Key Vault references will use the app's system assigned identity by default, but you can specify a user-assigned identity.
Create an access policy in Key Vault for the application identity you created earlier. Enable the "Get" secret permission on this policy. Do not configure the "authorized application" or applicationId settings, as this is not compatible with a managed identity.
Full steps on setting this up:
https://learn.microsoft.com/en-us/azure/app-service/app-service-key-vault-references
Click to see the image
stored the connection string in azure key vault. I added the access policy that azure purview can access the azure key vault.
My connection string is :
Server=tcp:imagevalidation.database.windows.net,1433;Initial Catalog=Imagevalidator;Persist Security Info=False;User ID=sqllogin;Password=xxxxxxxx;MultipleActiveResultSets=False;Encrypt=True;TrustServerCertificate=False;Connection Timeout=30;
The same connection string works fine in azure data factory. I can authenticate that database using azure key vault.
I'm looking for a code sample which demonstrates how to connect to an azure key vault and grab a secret from the vault without having to store creds in plain text but instead using certificates and an SPN for authentication to the vault. Has anyone done anything like this before who is willing to shed some light on this?
I'm trying to securely retrieve credentials from azure without ever having to save creds locally, and this has proven to be harder than I originally thought.
yes you can use certificate based authentication while accessing Azure key vault.
Here is a very good article on the same using dot net.
Certificate base authentication
Alternatively Azure Key Vault provides a way to securely store credentials and other keys and secrets, but your code needs to authenticate to Key Vault to retrieve them. Managed Service Identity (MSI) makes solving this problem simpler by giving Azure services an automatically managed identity in Azure Active Directory (Azure AD). You can use this identity to authenticate to any service that supports Azure AD authentication, including Key Vault, without having any credentials in your code.
Run the assign-identity command to create the identity for this application:
az webapp identity assign --name <app_name> --resource-group "<YourResourceGroupName>"
This command is the equivalent of going to the portal and switching Managed service identity to On in the web application properties.
Assign permissions to your application to read secrets from Key Vault
{
"principalId": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
"tenantId": "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx",
"type": "SystemAssigned"
}
Then, run this command using the name of your Key Vault and the value of PrincipalId copied from above:
az keyvault set-policy --name '<YourKeyVaultName>' --object-id <PrincipalId> --secret-permissions get
Deploy the Node App to Azure and retrieve the secret value
Deploy your node js app ,After this when you browse https://.azurewebsites.net you can see the secret value. Make sure that you replaced the name with your vault name