In the provided knowledge sources, there is no direct example of using a variable like an IP address in the

access-rules.yml

file. However, Ory Oathkeeper allows you to define Access Rules that match specific URLs and methods. For example, in the

access-rules.yml

file, you can define a rule that matches a specific URL and method:

yaml - id: "ws:protected"     upstream:       preserve_host: true       url: "<http://ws:8080>"     match:       url: "<http://127.0.0.1:8080/<**>>"       methods:         - GET         - POST     authenticators:       - handler: cookie_session     mutators:       - handler: noop     authorizer:       handler: allow     errors:       - handler: redirect         config:           to: <http://127.0.0.1:4455/login>

In this example, the rule matches any GET or POST request to

<http://127.0.0.1:8080/>

. However, if you want to match based on the IP address of the incoming request, this is not directly supported in the access rules configuration. You might need to implement this logic in your application or use a different layer of your infrastructure (like a reverse proxy or a firewall) to handle IP-based access control. For more details on how to configure access rules, you can refer to the [Ory Oathkeeper documentation](https://www.ory.sh/docs/oathkeeper/api-access-rules).