All files / service-matcher/src cluster-config.ts

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import type { ClusterConfig } from '@metamask/ocap-kernel';
 
/**
 * The bootstrap vat name used in the matcher's cluster config. Exported
 * so that host-side code reading the bootstrap result can address the
 * right vat.
 */
export const MATCHER_VAT_NAME = 'matcher';
 
/**
 * Filename of the matcher vat bundle as produced by `yarn bundle-vat` in
 * this package (the ocap-kernel CLI writes the bundle next to the source
 * as `index.bundle`). A launcher supplies a `bundleBaseUrl` pointing at
 * the directory containing this file.
 */
export const MATCHER_BUNDLE_FILENAME = 'index.bundle';
 
/**
 * Shape of the matcher subcluster's bootstrap result.
 */
export type MatcherBootstrapResult = {
  matcherUrl: string;
};
 
/**
 * Build a `ClusterConfig` for launching the matcher subcluster.
 *
 * @param options - Configuration options.
 * @param options.bundleBaseUrl - Base URL (or filesystem path) where the
 * matcher vat bundle is reachable. The bundle filename is appended.
 * @param options.forceReset - Whether to reset the subcluster on launch.
 * Defaults to `false`.
 * @returns A ClusterConfig ready for `kernel.launchSubcluster(...)`.
 */
export function makeMatcherClusterConfig(options: {
  bundleBaseUrl: string;
  forceReset?: boolean;
}): ClusterConfig {
  const { bundleBaseUrl, forceReset = false } = options;
  return {
    bootstrap: MATCHER_VAT_NAME,
    forceReset,
    services: ['ocapURLIssuerService', 'ocapURLRedemptionService'],
    vats: {
      [MATCHER_VAT_NAME]: {
        bundleSpec: `${bundleBaseUrl}/${MATCHER_BUNDLE_FILENAME}`,
      },
    },
  };
}