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Stateless Instances

Last reviewed: 8 months ago

Run multiple instances across Cloudflare's network

To simply proxy requests to one of multiple instances of a container, you can use the getRandom function:

TypeScript
import { Container, getRandom } from "@cloudflare/containers";


const INSTANCE_COUNT = 3;


class Backend extends Container {
  defaultPort = 8080;
  sleepAfter = "2h";
}


export default {
  async fetch(request: Request, env: Env): Promise<Response> {
    // note: "getRandom" to be replaced with latency-aware routing in the near future
    const containerInstance = await getRandom(env.BACKEND, INSTANCE_COUNT);
    return containerInstance.fetch(request);
  },
};