Files
cloudron-box/src/taskworker.js
Johannes Zellner 6a781c62ec Improve task progress values
0: not yet handled
1: queued
2: started
100: finished
2020-08-19 16:58:53 +02:00

104 lines
3.5 KiB
JavaScript
Executable File

#!/usr/bin/env node
'use strict';
var apptask = require('./apptask.js'),
async = require('async'),
backups = require('./backups.js'),
cloudron = require('./cloudron.js'),
database = require('./database.js'),
externalLdap = require('./externalldap.js'),
fs = require('fs'),
mail = require('./mail.js'),
reverseProxy = require('./reverseproxy.js'),
settings = require('./settings.js'),
tasks = require('./tasks.js'),
updater = require('./updater.js'),
util = require('util');
const TASKS = { // indexed by task type
app: apptask.run,
backup: backups.backupBoxAndApps,
update: updater.update,
renewcerts: reverseProxy.renewCerts,
setupDnsAndCert: cloudron.setupDnsAndCert,
cleanBackups: backups.cleanup,
syncExternalLdap: externalLdap.sync,
changeMailLocation: mail.changeLocation,
_identity: (arg, progressCallback, callback) => callback(null, arg),
_error: (arg, progressCallback, callback) => callback(new Error(`Failed for arg: ${arg}`)),
_crash: (arg) => { throw new Error(`Crashing for arg: ${arg}`); }, // the test looks for this debug string in the log file
_sleep: (arg) => setTimeout(process.exit, arg)
};
if (process.argv.length !== 4) {
console.error('Pass the taskid and logfile as argument');
process.exit(1);
}
const taskId = process.argv[2];
const logFile = process.argv[3];
function setupLogging(callback) {
fs.open(logFile, 'a', function (error, fd) {
if (error) return callback(error);
require('debug').log = function (...args) {
fs.appendFileSync(fd, util.format(...args) + '\n');
};
callback();
});
}
// Main process starts here
const startTime = new Date();
async.series([
setupLogging,
database.initialize,
settings.initCache
], function (error) {
if (error) return process.exit(50);
const debug = require('debug')('box:taskworker'); // require this here so that logging handler is already setup
const NOOP_CALLBACK = function (error) { if (error) debug(error); };
process.on('SIGTERM', () => process.exit(0)); // sent as timeout notification
debug(`Starting task ${taskId}. Logs are at ${logFile}`);
tasks.get(taskId, function (error, task) {
if (error) return process.exit(50);
tasks.update(taskId, { percent: 2, error: null }, function (error) {
if (error) {
console.error(error);
return process.exit(50);
}
const progressCallback = (progress, cb) => tasks.update(taskId, progress, cb || NOOP_CALLBACK);
const resultCallback = (error, result) => {
// Error object has properties with enumerable: false (https://mattcbaker.com/posts/stringify-javascript-error/)
const progress = {
result: result || null,
error: error ? JSON.parse(JSON.stringify(error, Object.getOwnPropertyNames(error))) : null
};
debug(`Task took ${(new Date() - startTime)/1000} seconds`);
tasks.setCompleted(taskId, progress, () => process.exit(error ? 50 : 0));
};
try {
TASKS[task.type].apply(null, task.args.concat(progressCallback).concat(resultCallback));
} catch (error) {
debug('Uncaught exception in task', error);
process.exit(1); // do not call setCompleted() intentionally. the task code must be resilient enough to handle it
}
});
});
});