feat: pass external gateway config to coreflow

ts/manager.coreflow/coreflowmanager.ts

@@ -103,12 +103,30 @@ export class CloudlyCoreflowManager {
     const cluster = await this.cloudlyRef.clusterManager.getClusterBy_Identity(identityArg);
     const services = await this.cloudlyRef.serviceManager.CService.getInstances({});
     const platformDesiredState = await this.cloudlyRef.platformManager.getPlatformDesiredState();
-    return {
+    const settings = await this.cloudlyRef.settingsManager.getSettings();
+    const targetPort = Number(settings.dcrouterTargetPort || '80');
+    const externalGateway = settings.dcrouterGatewayUrl && settings.dcrouterGatewayApiToken
+      ? {
+          url: settings.dcrouterGatewayUrl,
+          apiToken: settings.dcrouterGatewayApiToken,
+          workHosterType: 'cloudly' as const,
+          workHosterId: settings.dcrouterWorkHosterId || cluster.id,
+          targetHost: settings.dcrouterTargetHost,
+          targetPort: Number.isInteger(targetPort) && targetPort > 0 ? targetPort : 80,
+        }
+      : undefined;
+    const payload: plugins.servezoneInterfaces.requests.config.IRequest_Cloudly_Coreflow_PushClusterConfig['request'] & {
+      externalGateway?: typeof externalGateway;
+    } = {
       configData: await cluster.createSavableObject(),
       services: await Promise.all(services.map((service) => service.createSavableObject())),
       platformProviderConfigs: platformDesiredState.providerConfigs,
       platformBindings: platformDesiredState.bindings,
     };
+    if (externalGateway) {
+      payload.externalGateway = externalGateway;
+    }
+    return payload;
   }
 
   public async pushClusterConfigToConnectedCoreflows() {