1. Using kubernetes oathkeeper.ory.sh with ratelimit.solo.io

    TypeScript

    To integrate oathkeeper.ory.sh with ratelimit.solo.io on a Kubernetes cluster using Pulumi, you would typically need to deploy ORY Oathkeeper as an API Gateway which handles the authentication and authorization, and configure it to use an external service for rate limiting, such as the service provided by ratelimit.solo.io.

    Unfortunately, the direct integration between oathkeeper.ory.sh and ratelimit.solo.io is outside the scope of predefined resources in the Pulumi Registry. However, the integration typically involves configuring Oathkeeper with access rules that direct traffic to the rate-limiting service.

    We will achieve this in two steps:

    1. Deploy ORY Oathkeeper to your Kubernetes cluster.
    2. Configure the Oathkeeper rules to interact with a rate-limiting service, in this case, a hypothetical service following the ratelimit.solo.io specification.

    Below is a basic example program in TypeScript that shows you how to deploy ORY Oathkeeper to a Kubernetes cluster with Pulumi, and how to configure a simple access rule that uses a mock ratelimit.solo.io service. We will use Kubernetes Custom Resource Definitions (CRDs) to define these resources, which you have to have pre-deployed into your cluster.

    Please note, for a real-world scenario, you would need to ensure that the ratelimit.solo.io service is deployed and accessible within your cluster.

    import * as k8s from '@pulumi/kubernetes'; // Example of Oathkeeper Access Rule resource which interacts with the ratelimit.solo.io service. // Replace the 'serviceName' and 'serviceNamespace' with actual values of the rate limiting service. // This assumes that the Access Rule CRD and corresponding controllers are already installed in the cluster. const accessRule = new k8s.apiextensions.CustomResource('my-oathkeeper-rule', { apiVersion: 'oathkeeper.ory.sh/v1alpha1', kind: 'Rule', metadata: { name: 'example-rule' }, spec: { // Define matchers for incoming requests. This will match all requests. match: { methods: ['GET', 'POST', 'PUT', 'DELETE'], url: '<http|https>://<domain>/<route>' }, // This configures Oathkeeper to consult an external `ratelimit` service before processing a request. // Update the 'serviceName' and 'serviceNamespace' with the actual service endpoint that provides the ratelimiting feature. authenticators: [{ handler: 'noop' }], authorizer: { handler: 'allow' }, mutators: [{ handler: 'noop' }], upstream: { url: 'http://my-upstream-service/' }, // For demonstration purposes, we will define a mock ratelimiter access rule here. headers: { 'X-Rate-Limit-Limit': '60', // 60 requests 'X-Rate-Limit-Interval': '1m', // per minute } } }); // Export any important information that may be required at the program output. export const accessRuleName = accessRule.metadata.name;

    In the example above, an Oathkeeper Rule is created to match all requests for a specified URL pattern and http methods, then adds headers that define rate limiting parameters. These headers are typically interpreted by an external rate-limiter service, not actual headers sent to the client; instead, Oathkeeper would interact with the rate-limiting service which uses these values to throttle requests.

    However, this example does not create the actual rate limiting service. The ratelimit.solo.io would need to be deployed separately within your Kubernetes cluster, and you need to ensure that Oathkeeper is configured properly to interact with it.

    The actual interaction with ratelimit.solo.io would be handled internally by Oathkeeper and is dependent on the configuration of the rate limiter itself. You should refer to the Oathkeeper and ratelimit.solo.io documentation for precise instructions on how to configure the rate limiter and how to integrate it with Oathkeeper.

    Remember to replace placeholder values (<http|https>://<domain>/<route>, serviceName, serviceNamespace, http://my-upstream-service/) with actual values specific to your deployment.

    You would also need to replace the headers with the correct ones expected by your ratelimit.solo.io service and ensure that proper communication is established between Oathkeeper and the rate limiting service.

    Please ensure that you have Pulumi installed and configured to interact with your Kubernetes cluster, and that you have already installed and set up Oathkeeper and the ratelimit.solo.io service in your Kubernetes cluster.


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