Example showing how to create a Compute Engine instance using Cloud Functions

create_instance_function.js

const Buffer = require('safe-buffer').Buffer;
const Compute = require('@google-cloud/compute');
const compute = new Compute();

const zone = 'us-central1-a';

// We are going to add our vm configuration in the next step
// const vmConfig = ...

exports.createInstance = (event, context) => {
  const vmName = 'batch-job-executor' + Date.now();
  try {
    compute.zone(zone)
      .createVM(vmName, vmConfig)
      .then(data => {
        // Operation pending.
        const vm = data[0];
        const operation = data[1];
        console.log(`VM being created: ${vm.id}`);
        console.log(`Operation info: ${operation.id}`);
        return operation.promise();
      })
      .then(() => {
        const message = 'VM created with success, Cloud Function finished execution.';
        console.log(message);
      })
      .catch(err => {
        console.log(err);
      });
  } catch (err) {
    console.log(err);
  }
};