How to lock all resources in an Azure Resource group using Python

You will need to instantiate a ManagementLockClient object, then call the create_or_update_at_resource_group_level method to create the CanNotDelete lock at resource group level.

We can apply the lock at resource group level, because all child resources inherit the same lock from the parent scope.

Demo

from azure.common.client_factory import get_client_from_cli_profile
from azure.mgmt.resource import ResourceManagementClient, ManagementLockClient

# Authenticate with Azure CLI credentials
client = get_client_from_cli_profile(ResourceManagementClient)

resource_group_name = "myResourceGroup"

# Ensure resource group exists
if client.resource_groups.check_existence(resource_group_name):

    # Create lock client to do lock operations
    lock_client = get_client_from_cli_profile(ManagementLockClient)

    # Add delete lock at resource group level
    lock_client.management_locks.create_or_update_at_resource_group_level(
        resource_group_name=resource_group_name,
        lock_name="DeleteLock",
        parameters={"level": "CanNotDelete"},
    )
else:
    print(
        f"Resource group {resource_group_name} does not exist in your subscription!"
    )