Johannes Zellner
52 lines
1.6 KiB
JavaScript
52 lines
1.6 KiB
JavaScript
#!/usr/bin/env node
|
|
|
|
'use strict';
|
|
|
|
// WARNING This is a supervisor eventlistener!
|
|
// The communication happens via stdin/stdout
|
|
// !! No console.log() allowed
|
|
// !! Do not set DEBUG
|
|
|
|
var supervisor = require('supervisord-eventlistener'),
|
|
assert = require('assert'),
|
|
util = require('util'),
|
|
fs = require('fs'),
|
|
mailer = require('./src/mailer.js');
|
|
|
|
function collectLogs(program, callback) {
|
|
assert(typeof program === 'string');
|
|
assert(typeof callback === 'function');
|
|
|
|
var logFilePath = util.format('/var/log/supervisor/%s.log', program);
|
|
|
|
if (!fs.existsSync(logFilePath)) return callback(new Error(util.format('Log file %s does not exist.', logFilePath)));
|
|
|
|
fs.readFile(logFilePath, 'utf-8', function (error, data) {
|
|
if (error) return callback(error);
|
|
|
|
var lines = data.split('\n');
|
|
var logLines = lines.slice(-100);
|
|
|
|
callback(null, logLines.join('\n'));
|
|
});
|
|
}
|
|
|
|
supervisor.on('PROCESS_STATE_EXITED', function (headers, data) {
|
|
if (data.expected === '1') return console.error('Normal app %s exit', data.processname);
|
|
|
|
console.error('%s exited unexpectedly, send mail', data.processname);
|
|
|
|
collectLogs(data.processname, function (error, result) {
|
|
if (error) {
|
|
console.error('Failed to collect logs.', error);
|
|
result = util.format('Failed to collect logs.', error);
|
|
}
|
|
|
|
mailer.sendCrashNotification(data.processname, result);
|
|
});
|
|
});
|
|
|
|
mailer.initialize(function () {
|
|
supervisor.listen(process.stdin, process.stdout);
|
|
console.error('Crashnotifier listening...');
|
|
}); |