@lxdhub/dbsync/bin/start-dbsync.js

Display, search and copy LXD-images using a web interface.

#!/usr/bin/env node
const { LXDHubDbSync } = require('../lib');
const fs = require('fs-extra');
const path = require('path');
const YAML = require('js-yaml');

// Default time (in minutes) when the interval task should be executed
const DEFAULT_SYNC_INTERVAL = 5;

const DEFAULT_LXD_CONFIG_PATH = './lxdhub.yml';

const ROOT = path.join(__dirname, '../../..');

const certPath = process.env.LXD_CERT || 'certificates/client.crt';
const keyPath = process.env.LXD_KEY || 'certificates/client.key';

const lxd = {
  cert: fs.readFileSync(path.join(ROOT, certPath)),
  key: fs.readFileSync(path.join(ROOT, keyPath))
};

const database = {
  host: process.env.POSTGRES_HOST || 'localhost',
  port: parseInt(process.env.POSTGRES_PORT, 10) || 5432,
  username: process.env.POSTGRES_USER || 'lxdhub',
  password: process.env.POSTGRES_PASSWORD || 'lxdhub',
  database: process.env.POSTGRES_DATABASE || 'lxdhub'
};

const lxdConfigPath = process.env.LXDHUB_CONFIG || DEFAULT_LXD_CONFIG_PATH;
const lxdConifgAbsolutePath = path.isAbsolute(lxdConfigPath)
  ? lxdConfigPath
  : path.join(ROOT, lxdConfigPath);

const force =
  process.env.FORCE === 'true' || process.env.FORCE === '1' || false;

// Sync Interval in minutes
const syncInterval =
  (parseInt(process.env.SYNC_INTERVAL) || DEFAULT_SYNC_INTERVAL) * 1000 * 60;

// Function, which will be run as interval
const intervalTask = () =>
  // Read the config file
  fs
    .readFile(lxdConifgAbsolutePath, 'utf8')
    // Convert from YAML to JSON
    .then(content => YAML.safeLoad(content))
    // Create the database sync instance
    .then(lxdhubConfig => new LXDHubDbSync({ lxd, database, lxdhubConfig, force }))
    // Run the database sync script
    .then(dbSync => dbSync.run());

// Run task when starting
intervalTask();

// Register interval
setInterval(() => intervalTask(), syncInterval);