report catcher

Dockerfile

FROM node:8-alpine

COPY . /var/app

WORKDIR /var/app

VOLUME /var/app/report

CMD ["node", "index.js"]

index.js

'use strict';

const fs = require('fs');

const {
  GCLOUD_APPLICATION_CREDENTIALS,
  GCLOUD_BUCKET_NAME,
  GCLOUD_PROJECT_NAME,
} = process.env;

const storage = require('@google-cloud/storage')({
  projectId: GCLOUD_PROJECT_NAME,
  keyFilename: GCLOUD_APPLICATION_CREDENTIALS,
});

const VOLUME_PATH = process.env.VOLUME_PATH || '/var/app/reports';

const bucket = storage.bucket(GCLOUD_BUCKET_NAME);

const watcher = fs.watch(VOLUME_PATH, { recursive: true }, (evt, filename) => {
  console.log(filename, evt);
  
  bucket.upload(`${VOLUME_PATH}/${filename}`, (err) => {
    if (err) {
      return console.error(`An error occured: ${err}`);
    }
    return resolve(`The file ${VOLUME_PATH}/${filename} was correctly uploaded`);
  });
});

// handle properly the errors for 
// restarting the container if required
watcher.on('error', (err) => {
  console.error(err);
  process.exit(1);
})

process.on('SIGTERM', () => {
  watcher.close();
  process.exit(0);
});

package.json

{
  "name": "report-catcher",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@google-cloud/storage": "^1.5.2"
  }
}