Can we use managed identities with databricks? What I'm actually trying to achieve is, I have a cluster in databricks, I want it to be able to access secrets or keys stored in an azure key vault.
We generally perform this with VM, by enabling the managed identity and allowing that identity via access policy or Role-based access policy(RBAC) in key vaults.
Can we leverage the concept of manged identities in a similar way with databricks as well? Or is there any other way possible which I can use to access the secrets in key vault from databricks clusters?
P.S. The secret accessed in key vault will be used in init script of the databricks cluster, to perform decrypt opertations.
Managed identity in Azure Databricks isn't supported yet. But right now you can pass the value of secret as an environment variable, and it will be available in your init script - just specify in cluster configuration:
MY_PASSWORD={{secrets/scope/key}}
and then use in the init script:
if [ -n "$MY_PASSWORD" ]; then
use password
else
exit 1
fi
Related
I am trying to create a keyvault backed scope in databricks. I am able to successfully create the scope but when I try to add a key to the scope I see the following error:
Error: b'{"error_code":"BAD_REQUEST","message":"Cannot write secrets to Azure KeyVault-backed scope abc"}'
These are steps I have followed and all commands were run on windows cmd:
Create key vault in Azure
Generate AAD token for databricks - az account get-access-token --resource 2ff814a6-3304-4ab8-85cb-cd0e6f879c1d
Add AAD token to environment variables on windows
Add AAD token to databricks cfg file on windows - databricks configure --aad-token
Create scope - databricks secrets create-scope --scope abc --scope-backend-type AZURE_KEYVAULT --resource-id <keyvault-id> --dns-name <keyvault-dns> --initial-manage-principal users
Add key to scope - databricks secrets put --scope abc --key abc-key << this where I see the error
According to the documentation this is not possible:
To reference secrets stored in an Azure Key Vault, you can create a secret scope backed by Azure Key Vault. You can then leverage all of the secrets in the corresponding Key Vault instance from that secret scope. Because the Azure Key Vault-backed secret scope is a read-only interface to the Key Vault, the PutSecret and DeleteSecret Secrets API 2.0 operations are not allowed. To manage secrets in Azure Key Vault, you must use the Azure SetSecret REST API or Azure portal UI.
Using Az CLI, you could use the az keyvault secret set command.
I am trying to create and manage Azure Keyvault Secrets using the Azure Service Operators.
I can see the options to create and manage the Keyvault certificate using the kind: KeyVaultKey. However, I am wondering how I can create and manage secrets using the Azure Service Operators.
Is there any lead on this?
Appreciate the help..!
The Azure Key Vault operator suite consists of the following operators:
• KeyVault - Deploys an Azure Key Vault given the location and resource group
• KeyVaultKey - Deploys an Azure Key Vault key given the location and resource group
The KeyVaultKey operator serves as an operator that allows for declarative management of Key Vault keys - one of the three resources available for storage and management in Key Vault; keys, secrets, and certificates. Keys can be leveraged for various use cases.
You can find sample code Here
Reference for Azure service operator
Note: Azure service operator is still under development
I have a Python script running on an Azure Virtual Machine which uploads a file into a file share in a storage account. The VM is given a user-assigned managed identity with the built-in 'Key Vault Secrets User' role.
I followed this tutorial to allow key vault to automatically manage the storage account access key as a secret. Therefore, it is a managed secret (not viewable through the portal but visible through the CLI). My Python app attempts to retrieve the access key from the vault and uses it to generate a SAS token with write permission to file shares. However, when I attempt to retrieve the secret from key vault, I get the following error:
azure.core.exceptions.HttpResponseError: (Forbidden) The user, group or application 'appid=xxx;iss=https://sts.windows.net/xxx/' does not have secrets get permission on key vault 'my-vault-name;location=eastus'. For help resolving this issue, please see https://go.microsoft.com/fwlink/?linkid=2125287
I allowed access to the vault with the managed identity I created through the portal, and this was yesterday, so the change has definitely propagated okay. What is the issue with my process? Do I need to give the managed identity more permissions than just 'Key Vault Secrets User'?
Solved. I got confused and allowed access to the managed identity through IAM and not through the vault Access Policies.
I am looking to deploy Azure function by using Terraform, in the same way which is mentioned here in the Ms docs.
https://learn.microsoft.com/en-us/azure/azure-functions/deployment-zip-push
One of my need to store and Storage SAS key to Key Vault. I have seen some exmaple where we can below setting is used, but I can't use sas key without storing to Key Vault.
WEBSITE_RUN_FROM_ZIP = "https://${azurerm_storage_account.this.name}.blob.core.windows.net/${azurerm_storage_container.this.name}/${azurerm_storage_blob.this.name}${data.azurerm_storage_account_sas.this.sas}"
Any suggestion?
Thank you !
For this requirement, you can use the Key Vault reference to get the secrets to the Azure Function like this:
#Microsoft.KeyVault(SecretUri=https://myvault.vault.azure.net/secrets/mysecret/ec96f02080254f109c51a1f14cdb1931)
Or
#Microsoft.KeyVault(VaultName=myvault;SecretName=mysecret;SecretVersion=ec96f02080254f109c51a1f14cdb1931)
But this means only support system-assigned managed identities. So you need to enable the system-assigned managed identity and assign the right role of the Key Vault to it. Here is more details.
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