In Azure Key Vault Certificate will be auto renewed nearer to expiry date.
would like to know how can renewed certificate be uploaded to App-Service/ Azure Functions.
Is there a hook available on KeyVault to listen for Certificate successful recreation. so Thumbprint and renewed certificate will be updated to App Service.
No, there is no such hook. You can use azure powershell\cli\rest api\whatever to retrieve the certificate and push it to the app service. You can configure Azure Function\Runbook to do that on a schedule, so you dont have to worry about it.
Rest Api: https://learn.microsoft.com/en-us/rest/api/appservice/certificates/createorupdate
Powershell: https://learn.microsoft.com/en-us/azure/app-service/scripts/powershell-configure-ssl-certificate
Azure Cli: https://learn.microsoft.com/en-us/azure/app-service/scripts/cli-configure-ssl-certificate
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 SSL cert in my Azure key vault that I am trying to import to the correct App Service.
I am the owner of the Azure subscription and I have given the App Service GET and LIST permissions for certificates on the vault.
On my App Service I click TLS/SSL settings > Private Key Certificates (.pfx) > Import Key Vault Certificate
This is the message I receive
Another owner on the subscription is able to complete this process successfully. So I am not sure why I am not able to when we both have owner roles on the subscription?
Is anyone able to offer any suggestions please?
When you are trying the operation from Azure Portal and you are a Owner of the Subscription, then Azure by default adds a access policy for the Azure APP Service Resource Provider and you do not further require to add the any access policies for the Web App.
Example:
I created a Web App with system managed identity and a Key vault with the below added Access Policies. I am an Owner of the Subscription and a User in the Azure Active Directory.
When , I perform the import certificate operation in the TLS/SSL Settings, the access policy get automatically updated with the Azure App Service Service Principal Credential.
In your case its not able to find the details of the Resource Provider Service Principal. As a Solution you can try adding Microsoft.Azure.CertificateRegistration (i.e. ObjectId : ed47c2a1-bd23-4341-b39c-f4fd69138dd3) , Microsoft Azure App Service (Internal) (i.e. ObjectId : 505e3754-d8a9-4f8b-97b6-c3e48ac7a543) & Microsoft Azure App Service (i.e. ObjectId : f8daea97-62e7-4026-becf-13c2ea98e8b4) in access policy for key vault.
Note: If the Issue is still not resolved , Please reach out to Azure Support for better assistance.
How can i create a new certificate for my service principal in azure with powershell?
Have you referred to the online documentation already? This gives a step by step process using powershell.
This is creating a self signed certificate but for production, you should get one which is signed by a Certificate Authority(CA) LINK.
I have created an Azure App Service Certificate - Wildcard and have linked it to an Azure Key Vault, also done with Domain Verification. Now I want to export this certificate as PFX and use in other components.
However, If I go to the Key Vault secret it shows up as blank.
I have tried running powershell scripts to export/download the cert but doesn't work.
The powershell script to export the cert from Key Vault is taken from https://azure.github.io/AppService/2017/02/24/Creating-a-local-PFX-copy-of-App-Service-Certificate.html
As this used the retired AzureRM module, I found a more up to date code which uses Azure Powershell scripts # https://raw.githubusercontent.com/Anitalex/poshscripts/a7e6c8153ab9f9979792eb8c07497cd42e39778d/azure/ExportWebAppCertificate.ps1
But similar set of steps..
I have tried Re-Keying the certificate in the App Service Certificate and the problem persists ?
Argh...
Here is the solution which doesn't seem to be documented anywhere..
I don't know if it's the only way, but looks like it - We have to
Create an Azure WebApp ( or an AppService)
Turn on TLS/SSL
Set an Identity - either System Assigned/User Assigned
Grant this Identity required permission to the KeyVault [ won't work with the Azure role-based access control (preview) ]
Go to the tab "Private Key Certificates (.pfx)"
Use the "Import App Service Certificate" - you will need to select your cert from the dropdowns.
Once the certificate is successfully imported, the pfx will be populated in the Key Vault certificate and now you can download.
I am trying to import a certificate from a Key Vault to an App Service to configure SSL in the Azure Government Cloud. When I do this I get an error stating:
Failed to get App Service Service principal details.
I am getting a similar error when I try to do this through an ARM template which it what caused me to try this manually. I have tried giving my App Service a managed identity and giving that identity access to the key vault. I have tried a technique that worked in the regular Azure Cloud of giving "Microsoft Azure App Service" account permission to the key vault but that doesn't seem to exist in the Government Cloud.
I would have expected this to simply work and allow me to configure my SSL correctly on the app service so I don't need to manage the certificates individually on every app service.
You have to enable in the Identity of your app services that can be assigned through the azure permissions, then you have to go to the KeyVault and grant the permissions to the App Services.
https://learn.microsoft.com/en-us/azure/app-service/media/app-service-managed-service-identity/msi-blade-system.png
More information:
https://learn.microsoft.com/en-us/azure/app-service/overview-managed-identity
https://learn.microsoft.com/es-es/azure/key-vault/tutorial-net-create-vault-azure-web-app
https://azure.microsoft.com/en-us/resources/samples/app-service-msi-keyvault-dotnet/
I eventually found the solution to the issue.
Following the directions found here:
https://github.com/Azure/azure-quickstart-templates/tree/master/201-web-app-certificate-from-key-vault
I tried to authorize the 'Microsoft.Azure.WebSites' Resource Provider as described in the link, but that GUID doesn't exist in the Government Cloud.
This link however does give you the equivalent GUID for the Government Cloud:
https://github.com/MicrosoftDocs/azure-docs/blob/master/articles/azure-government/documentation-government-services-webandmobile.md#app-services
After using the script from the first link with the GUID value from the second link I was able to get both deployments and manual SSL added.