Based on the provided knowledge sources, there is no direct information about updating the Ory Permission Language (OPL) for a namespace on a self-hosted Ory Keto instance. The sources mention commands for migrating namespaces and updating the OPL in the Ory Network, but not specifically for a self-hosted Keto instance. However, there is a command

keto namespace migrate legacy

that allows you to migrate a namespace from v0.6.x to v0.7.x and later. This command can be used if you have legacy namespaces that need to be migrated to the newer version. Here is the command:

bash keto namespace migrate legacy [<namespace-name>] [flags]

Options for this command include:

bash       --down-only             Migrate legacy namespace(s) only down.         --format string         Set the output format. One of table, json, yaml, and json-pretty. (default "default")     -h, --help                  help for legacy     -q, --quiet                 Be quiet with output printing.         --read-remote string    Remote address of the read API endpoint. (default "127.0.0.1:4466")         --write-remote string   Remote address of the write API endpoint. (default "127.0.0.1:4467")     -y, --yes                   yes to all questions, no user input required

For updating the OPL in the Ory Network, there are commands

ory update opl

and

ory patch opl

. These commands update the Ory Permission Language file in Ory Network and overwrite legacy namespace definitions. Here is the command:

bash ory update opl [flags]

or

bash ory patch opl [flags]

Options for these commands include:

bash   -f, --file string        Configuration file (<file://namespace_config.ts>, <https://example.org/namespace_config.ts>, ...) to update the Ory Permission Language config         --format string      Set the output format. One of table, json, yaml, json-pretty, jsonpath and jsonpointer. (default "default")     -h, --help               help for opl         --project string     The project to use, either project ID or a (partial) slug.     -q, --quiet              Be quiet with output printing.         --workspace string   The workspace to use, either workspace ID or a (partial) name.     -y, --yes                Confirm all dialogs with yes.

Please refer to the official Ory documentation for more detailed information: - [keto namespace migrate legacy](https://www.ory.sh/docs/keto/cli/keto-namespace-migrate-legacy) - [ory update opl](https://www.ory.sh/docs/cli/ory-update-opl) - [ory patch opl](https://www.ory.sh/docs/cli/ory-patch-opl)

Based on the provided knowledge sources, there is no direct information about configuring namespaces in the Ory Keto configuration file with Ory Permission Language (OPL). The sources mention how to define namespaces in OPL and how to use the Ory CLI to manage namespaces, but not specifically how to configure namespaces in the Keto configuration file with OPL. In the Ory Permission Language, namespaces are defined as follows:

typescript import { Namespace, Context } from "@ory/keto-namespace-types"      class User implements Namespace {}   class Document implements Namespace {}   class Folder implements Namespace {}

Each namespace holds a set of permissions, which define which relationships are checked. For example, checking a

view

permission for

User:bob

on an

readme.txt

file in the

Document

namespace requires the following relationship lookups:

typescript is User:bob in viewers of Document:readme.txt // all viewers can view the document   is User:bob in editors of Document:readme.txt // all editors can view the document   is User:bob in owners of Document:readme.txt // all owners can view the document

The permission model defines which relationships are checked in the process. You can learn how to create a permission model [here](https://www.ory.sh/docs/keto/modeling/create-permission-model). For managing namespaces using the Ory CLI, there are commands like

keto namespace

,

keto namespace migrate

, and

keto namespace validate

. These commands allow you to read and manipulate namespaces, migrate a namespace, and validate namespace definitions, respectively. Please refer to the official Ory documentation for more detailed information: - [Namespaces](https://www.ory.sh/docs/keto/concepts/namespaces) - [keto namespace](https://www.ory.sh/docs/keto/cli/keto-namespace) - [keto namespace migrate](https://www.ory.sh/docs/keto/cli/keto-namespace-migrate) - [keto namespace validate](https://www.ory.sh/docs/keto/cli/keto-namespace-validate)