A Key Vault access policy determines whether a given security principal, namely a user, application or user group, can perform different operations on Key Vault secrets, keys, and certificates. You can assign access policies using the Azure portal, the Azure CLI, or Azure PowerShell.
Key vault supports up to 1024 access policy entries, with each entry granting a distinct set of permissions to a particular security principal. Because of this limitation, we recommend assigning access policies to groups of users, where possible, rather than individual users. Using groups makes it much easier to manage permissions for multiple people in your organization. For more information, see Manage app and resource access using Azure Active Directory groups
In the Azure portal, navigate to the Key Vault resource.
Under Settings, select Access policies, then select Add Access Policy:
Select the permissions you want under Certificate permissions, Key permissions, and Secret permissions. You can also select a template that contains common permission combinations:
Under Select principal, choose the None selected link to open the Principal selection pane. Enter the name of the user, app or service principal in the search field, select the appropriate result, then choose Select.
If you're using a managed identity for the app, search for and select the name of the app itself. (For more information on security principals, see Key Vault authentication.
Back in the Add access policy pane, select Add to save the access policy.
Back on the Access policies page, verify that your access policy is listed under Current Access Policies, then select Save. Access policies aren't applied until you save them.
The az login command opens a browser window to gather credentials if needed.
Acquire the object ID
Determine the object ID of the application, group, or user to which you want to assign the access policy:
Applications and other service principals: use the az ad sp list command to retrieve your service principals. Examine the output of the command to determine the object ID of the security principal to which you want to assign the access policy.
az ad sp list --show-mine
Groups: use the az ad group list command, filtering the results with the --display-name parameter:
az ad group list --display-name <search-string>
Users: use the az ad user show command, passing the user's email address in the --id parameter:
Replace <object-id> with the object ID of your security principal.
You need only include --secret-permissions, --key-permissions, and --certificate-permissions when assigning permissions to those particular types. The allowable values for <secret-permissions>, <key-permissions>, and <certificate-permissions> are given in the az keyvault set-policy documentation.
Determine the object ID of the application, group, or user to which you want to assign the access policy:
Applications and other service principals: use the Get-AzADServicePrincipal cmdlet with the -SearchString parameter to filter results to the name of the desired service principal:
You need only include -PermissionsToSecrets, -PermissionsToKeys, and -PermissionsToCertificates when assigning permissions to those particular types. The allowable values for <secret-permissions>, <key-permissions>, and <certificate-permissions> are given in the Set-AzKeyVaultAccessPolicy - Parameters documentation.
