Switch Instance Boot Status

import { InstancesClient, ZoneOperationsClient } from "@google-cloud/compute";

type Gcloud = {

  type: string;

  project_id: string;

  private_key_id: string;

  private_key: string;

  client_email: string;

  client_id: string;

  auth_uri: string;

  token_uri: string;

  auth_provider_x509_cert_url: string;

  client_x509_cert_url: string;

  universe_domain: string;

};

export async function main(

  resource: Gcloud,

  zone: string,

  instanceName: string,

  newInstanceStatus: "start" | "stop",

  waitCompletion: boolean = false

) {

  if (!["start", "stop"].includes(newInstanceStatus)) {

    throw new Error("The new VM boot status must be 'start' or 'stop'.");

  }

  const instancesClient = new InstancesClient({

    credentials: resource,

    projectId: resource.project_id,

  });

  const [response] = await instancesClient[newInstanceStatus]({

    project: resource.project_id,

    zone,

    instance: instanceName,

  });

  let operation: any = response.latestResponse;

  if (waitCompletion) {

    const operationsClient = new ZoneOperationsClient({

      credentials: resource,

      projectId: resource.project_id,

    });

    while (operation.status !== "DONE") {

      [operation] = await operationsClient.wait({

        operation: operation.name,

        project: resource.project_id,

        zone: operation.zone.split("/").pop(),

      });

    }

  }

  return operation;

}