Not so automatic meteor now deployment

deploy.js

const OS = require('os');
const del = require('del');
const { spawn, execSync, spawnSync } = require('child_process');
const tar = require('tar');
const fs = require('fs');
const splitFile = require('split-file');
const nowConfig = require('./now.json');

const buildDirectory = `${OS.homedir()}/.meteor-now/build-plus`;

function spawnProcess(cmd, args = []) {
  return new Promise((resolve, reject) => {
    const child = spawn(cmd, args, {
      shell: true,
    });

    child.on('error', reject);

    child.on('exit', (code, signal) => {
      if (code !== 0) {
        reject({ code, signal });
      } else {
        resolve();
      }
    });

    if (child.stdout) {
      child.stdout.on('data', (data) => {
        console.log(data.toString());
        resolve(data.toString());
      });
    }
  });
};

function bundleDirectory() {
  const pathDelimiter = '/';
  const pathParts = process.cwd().split(pathDelimiter);
  return `${buildDirectory}/${pathParts[pathParts.length - 1]}.tar.gz`;
}

async function deploy() {
  try {
    console.log('clear build');
    await del(buildDirectory, { force: true });
    console.log('build cleared');

    console.log('create build');
    await spawnProcess('meteor', [
      'build',
      buildDirectory,
      '--server-only',
      '--architecture=os.linux.x86_64',
    ]);
    console.log('build created');

    console.log('copy');
    execSync(`ditto ./.scripts/Dockerfile ${buildDirectory}/Dockerfile`);
    execSync(`ditto ./.scripts/now.json ${buildDirectory}/now.json`);
    console.log('copied');

    console.log('prepare');
    await splitFile.splitFileBySize(
      bundleDirectory(),
      999999,
    );
    await del(bundleDirectory(), { force: true });
    console.log('prepared');

    console.log('deploy');
    const deploymentUrl = await spawnProcess('now', [
      buildDirectory,
      '-A', './now.json',
    ]);
    console.log(`deployed ${deploymentUrl}`);
    console.log(deploymentUrl);

    console.log('clean up');
    await spawnProcess(`now alias ${deploymentUrl} <PUT YOUR URL HERE>`);
    await spawnProcess(`now rm ${nowConfig.name} --safe --yes`);
    console.log('clean up complete');
  } catch (err) {
    throw err;
  }
};

deploy();

Dockerfile

FROM node:8.9.4


LABEL name="hermes"
COPY . /usr/src/app/
WORKDIR /usr/src/app
RUN cat *sf-part* > bundle.tar.gz
RUN tar -xzf bundle.tar.gz
WORKDIR bundle/programs/server
RUN npm install
WORKDIR ../../

EXPOSE 3000
CMD ["node", "main.js"]

now.json

{
  "version": 1,
  "name": "appname",
  "alias": "alias",
  "type": "docker",
  "env": {
    "NODE_ENV": "production",
    "PORT": "3000",
    "ROOT_URL": "https://localhost:3000",
    "MONGO_URL": "mongodb://..",
    "MONGO_OPLOG_URL": "mongodb://...",
    "METEOR_SETTINGS": "..."
  },
  "scale": {
    "sfo1": {
      "min": 1,
      "max": 1
    }
  }
}

package.json

{
  "scripts": {
    "deploy": "node ./.scripts/deploy.js"
  }
}