Minimal Permissions for cross account imports

By default, the Cado platform uses Azure contributor roles for cross-account permissions, it is possible to use custom roles to granularly scope the permissions required.

Valid Scopes

There are three ways to assign scope to the following permissions, these and their effects are explained below:

Assignable Scope	Effect
/providers/Microsoft.Management/managementGroups/<<GROUP ID>>	Allows access to all resources in the management group where the Cado app registration was created, typically allows access at the root of an Azure tenancy.
/subscription/<<Subscription ID>>	Allows access to all resources, within a given subscription, in the tenant where the Cado app registration was created.
/subscription/<<Subscription ID>>/resourceGroups/<<Resource Group>>	Allows access to a specific resource group, within a given subscription, in the tenant where the Cado app registration was created.

Storage Account

This is a scoped down replacement for the Storage Account Contributor role, the following are a list of permissions required for Azure blob storage acquisitions:

Permission	Purpose
Microsoft.Resources/subscriptions/resourceGroups/read	Retrieves or lists resource groups.
Microsoft.Storage/storageAccounts/read	Retrieves the storage account with the given account.
Microsoft.Storage/storageAccounts/listKeys/action	Retrieves access keys for the storage account.

Example

{
    "properties": {
        "roleName": "Cado Storage Role",
        "description": "Required by Cado for blob based acquisitions",
        "assignableScopes": [
            "<<YOUR SCOPE HERE>>"
        ],
        "permissions": [
            {
                "actions": [
                    "Microsoft.Resources/subscriptions/resourceGroups/read",
                    "Microsoft.Storage/storageAccounts/read",
                    "Microsoft.Storage/storageAccounts/listKeys/action"
                ],
                "notActions": [],
                "dataActions": [],
                "notDataActions": []
            }
        ]
    }
}

Compute and Activity Logs

This is a scoped down replacement for the Virtual Machine Contributor, Disk Snapshot Contributor, and Monitoring Contributor roles. The following are the permissions needed for virtual machine and activity log acquisitions:

Permission	Effect
Microsoft.Compute/snapshots/write	Create a new snapshot, or update an existing one.
Microsoft.Compute/snapshots/read	Retrieve the properties of a snapshot.
Microsoft.Compute/snapshots/delete	Delete a snapshot.
Microsoft.Compute/snapshots/beginGetAccess/action	Get the SAS URI of a snapshot for download.
endGetAccess/actionMicrosoft.Compute/snapshots/	Revoke a SAS URI of a given snapshot.
Microsoft.Compute/disks/beginGetAccess/action	Get the SAS URI of a disk for download.
Microsoft.Compute/disks/read	Retrieve the properties of a disk.
Microsoft.Compute/virtualMachines/read	Retrieve the properties of a virtual machine
Microsoft.Compute/virtualMachines/runCommand/action	Execute a predefined script on a virtual machine.
Microsoft.Insights/eventtypes/values/read	Retrieve activity log events.

Example

{
    "properties": {
        "roleName": "Cado Compute and Activity Log Role",
        "description": "Required by Cado for virtual machine based acquisitions",
        "assignableScopes": [
            "<<YOUR SCOPE HERE>>"
        ],
        "permissions": [
            {
                "actions": [
                    "Microsoft.Compute/snapshots/read",
                    "Microsoft.Compute/snapshots/write",
                    "Microsoft.Compute/snapshots/delete",
                    "Microsoft.Compute/snapshots/beginGetAccess/action",
                    "Microsoft.Compute/snapshots/endGetAccess/action",
                    "Microsoft.Compute/disks/beginGetAccess/action",
                    "Microsoft.Compute/disks/read",
                    "Microsoft.Compute/virtualMachines/read",
                    "Microsoft.Compute/virtualMachines/runCommand/action",
                    "Microsoft.Insights/eventtypes/values/read"
                ],
                "notActions": [],
                "dataActions": [],
                "notDataActions": []
            }
        ]
    }
}

Azure Kubernetes Service

Permission	Effect
Microsoft.Resources/subscriptions/operationresults/read	Retrieve subscription operation results.
Microsoft.Resources/subscriptions/read	Retrieve a list of subscriptions.
Microsoft.Resources/subscriptions/resourceGroups/read	Retrieve or list resource groups.
Microsoft.ContainerService/managedClusters/read	Retrieve a managed cluster.
Microsoft.ContainerService/managedClusters/runCommand/action	Run a command against a managed kubernetes cluster.
Microsoft.ContainerService/managedClusters/commandResults/read	Retrieve the result of a previously issued command.
Microsoft.ContainerService/managedClusters/privateEndpointConnections/read	Retrieve a private endpoint connection.
Microsoft.ContainerService/managedClusters/listClusterAdminCredential/action	List the cluster admin credential of a managed cluster.

Example

{
    "properties": {
        "roleName": "Cado Kubernetes role",
        "description": "Required by Cado for AKS based acquisitions",
        "assignableScopes": [
            "<<YOUR SCOPE HERE>>"
        ],
        "permissions": [
            {
                "actions": [
                    "Microsoft.Resources/subscriptions/operationresults/read",
                    "Microsoft.Resources/subscriptions/read",
                    "Microsoft.Resources/subscriptions/resourceGroups/read",
                    "Microsoft.ContainerService/managedClusters/read",
                    "Microsoft.ContainerService/managedClusters/runCommand/action",
                    "Microsoft.ContainerService/managedClusters/commandResults/read",
                    "Microsoft.ContainerService/managedClusters/privateEndpointConnections/read",
                    "Microsoft.ContainerService/managedClusters/listClusterAdminCredential/action"
                ],
                "notActions": [],
                "dataActions": [],
                "notDataActions": []
            }
        ]
    }
}