pm2/lib/API/Startup.js

285 lines
8.8 KiB
JavaScript

/**
* Copyright 2013 the PM2 project authors. All rights reserved.
* Use of this source code is governed by a license that
* can be found in the LICENSE file.
*/
var debug = require('debug')('pm2:cli:startup');
var chalk = require('chalk');
var path = require('path');
var fs = require('fs');
var async = require('async');
var exec = require('child_process').exec;
var Common = require('../Common.js');
var cst = require('../../constants.js');
module.exports = function(CLI) {
/**
* If command is launched without root right
* Display helper
*/
function isNotRoot(platform, opts, cb) {
if (opts.user) {
console.log(cst.PREFIX_MSG + 'You have to run this command as root. Execute the following command:');
console.log(chalk.grey(' sudo su -c "env PATH=$PATH:' + path.dirname(process.execPath) + ' pm2 startup ' + platform + ' -u ' + opts.user + ' --hp ' + process.env.HOME + '"'));
return cb(new Error('You have to run this with elevated rights'));
}
return exec('whoami', function(err, stdout, stderr) {
console.log(cst.PREFIX_MSG + 'You have to run this command as root. Execute the following command:');
console.log(chalk.grey(' sudo su -c "env PATH=$PATH:' + path.dirname(process.execPath) + ' pm2 startup ' + platform + ' -u ' + stdout.trim() + ' --hp ' + process.env.HOME + '"'));
return cb(new Error('You have to run this with elevated rights'));
});
}
/**
* Startup script generation
* @method startup
* @param {string} platform type (centos|redhat|amazon|gentoo|systemd)
*/
CLI.prototype.startup = function(platform, opts, cb) {
var that = this;
if (!cb) {
cb = function(err, data) {
if (err)
return that.exitCli(cst.ERROR_EXIT);
return that.exitCli(cst.SUCCESS_EXIT);
}
}
if (process.getuid() != 0) {
return isNotRoot(platform, opts, cb);
}
var destination = '/etc/init.d/pm2-init.sh';
var templateName = cst.UBUNTU_STARTUP_SCRIPT;
var templatePath;
var template;
var cmd;
var cmdAsUser;
/**
* 1# Determine startup script destination
*/
if (platform == 'redhat') {
platform = 'centos';
}
if (platform == 'systemd') {
destination = '/etc/systemd/system/pm2.service';
}
if (platform == 'darwin') {
destination = path.join(process.env.HOME, 'Library/LaunchAgents/io.keymetrics.PM2.plist');
if (!fs.existsSync(path.dirname(destination))) {
fs.mkdirSync(path.dirname(destination));
}
}
if (platform == 'freebsd') {
destination = '/etc/rc.d/pm2';
}
if (platform == 'gentoo') {
destination = '/etc/init.d/pm2'
}
/**
* 2# Resolve template file path
*/
if (!!~['freebsd', 'systemd', 'centos', 'amazon', 'gentoo', 'darwin'].indexOf(platform))
templateName = cst[platform.toUpperCase() + '_STARTUP_SCRIPT'];
templatePath = path.join(cst.TEMPLATE_FOLDER, templateName);
/**
* 3# Read startup template file
*/
debug('Getting startup template script %s', templatePath);
template = fs.readFileSync(templatePath, {encoding: 'utf8'});
var user = opts.user || 'root';
/**
* 4# Replace template variable value
*/
template = template.replace(/%PM2_PATH%/g, process.mainModule.filename)
.replace(/%NODE_PATH%/g, platform != 'darwin' ? path.dirname(process.execPath) : process.env.PATH)
.replace(/%USER%/g, user);
// Set the right user home path
if (opts.hp)
template = template.replace(/%HOME_PATH%/g, path.resolve(opts.hp, '.pm2'));
else
template = template.replace(/%HOME_PATH%/g, cst.PM2_ROOT_PATH);
/**
* 5# Writing generated startup script into the right folder
*/
Common.printOut(cst.PREFIX_MSG + 'Writing startup script in ' + destination);
try {
fs.writeFileSync(destination, template);
} catch (e) {
console.error(cst.PREFIX_MSG_ERR + 'Failure when trying to write startup script');
console.error(e.message || e);
return cb(e);
}
/**
* 6# Making startup script executable
*/
Common.printOut(cst.PREFIX_MSG + 'Making script booting at startup...');
switch (platform) {
case 'systemd':
cmdAsUser = [
'pm2 dump', //We need an empty dump so that the first resurrect works correctly
'pm2 kill',
].join(' && ');
cmd = [
'systemctl daemon-reload',
'systemctl enable pm2',
'systemctl start pm2'
].join(' && ');
break;
case 'centos':
case 'amazon':
cmd = 'chmod +x ' + destination + '; chkconfig --add ' + path.basename(destination);
fs.closeSync(fs.openSync('/var/lock/subsys/pm2-init.sh', 'w'));
Common.printOut(cst.PREFIX_MSG + '/var/lock/subsys/pm2-init.sh lockfile has been added');
break;
case 'gentoo':
cmd = 'chmod +x ' + destination + '; rc-update add ' + path.basename(destination) + ' default';
break;
case 'freebsd':
cmd = 'chmod +x ' + destination;
break;
default :
cmd = 'chmod +x ' + destination + ' && update-rc.d ' + path.basename(destination) + ' defaults';
break;
}
if (platform == 'systemd') {
cmd = 'su ' + user + ' -c "' + cmdAsUser + '" && su root -c "' + cmd + '"';
} else if (platform == 'freebsd') {
cmd = 'su root -c "' + cmd + '"';
} else if (platform != 'darwin') {
cmd = 'su -c "' + cmd + '"';
} else {
cmd = 'pm2 dump';
}
Common.printOut(cst.PREFIX_MSG + '-' + platform + '- Using the command:\n %s', chalk.grey(cmd));
exec(cmd, function(err, stdo, stde) {
if (err) {
Common.printError(err);
Common.printError('----- Are you sure you use the right platform command line option ? centos / redhat, amazon, ubuntu, gentoo, systemd or darwin?');
return cb(Common.retErr(err));
}
Common.printOut(stde.toString().replace(/[\r\n]$/, ''));
Common.printOut(stdo.toString().replace(/[\r\n]$/, ''));
Common.printOut(cst.PREFIX_MSG + 'Done.');
console.log('');
Common.printOut(cst.PREFIX_MSG + 'Now you can type' );
console.log(chalk.bold.blue('$ pm2 save'));
Common.printOut(cst.PREFIX_MSG + 'To save the current process list at reboot or via pm2 update');
return cb(null, {
destination : destination,
templatePath : templatePath
});
});
};
/**
* Dump current processes managed by pm2 into DUMP_FILE_PATH file
* @method dump
* @param {} cb
* @return
*/
CLI.prototype.dump = function(cb) {
var env_arr = [];
var that = this;
Common.printOut(cst.PREFIX_MSG + 'Saving current process list...');
that.Client.executeRemote('getMonitorData', {}, function(err, list) {
if (err) {
Common.printError('Error retrieving process list: ' + err);
return cb ? cb(Common.retErr(err)) : that.exitCli(cst.ERROR_EXIT);
}
/**
* Description
* @method fin
* @param {} err
* @return
*/
function fin(err) {
try {
fs.writeFileSync(cst.DUMP_FILE_PATH, JSON.stringify(env_arr, '', 2));
} catch (e) {
console.error(e.stack || e);
Common.printOut(cst.PREFIX_MSG_ERR + 'Failed to save dump file in %s', cst.DUMP_FILE_PATH);
return that.exitCli(cst.ERROR_EXIT);
}
if (cb) return cb(null, {success:true});
Common.printOut(cst.PREFIX_MSG + 'Successfully saved in %s', cst.DUMP_FILE_PATH);
return that.exitCli(cst.SUCCESS_EXIT);
}
(function ex(apps) {
if (!apps[0]) return fin(null);
delete apps[0].pm2_env.instances;
delete apps[0].pm2_env.pm_id;
if (!apps[0].pm2_env.pmx_module)
env_arr.push(apps[0].pm2_env);
apps.shift();
return ex(apps);
})(list);
});
};
/**
* Resurrect processes
* @method resurrect
* @param {} cb
* @return
*/
CLI.prototype.resurrect = function(cb) {
var apps = {};
var that = this;
Common.printOut(cst.PREFIX_MSG + 'Restoring processes located in %s', cst.DUMP_FILE_PATH);
try {
apps = fs.readFileSync(cst.DUMP_FILE_PATH);
} catch(e) {
Common.printError(cst.PREFIX_MSG_ERR + 'No processes saved; DUMP file doesn\'t exist');
if (cb) return cb(Common.retErr(e));
else return that.exitCli(cst.ERROR_EXIT);
}
var processes = Common.parseConfig(apps, 'none');
async.eachLimit(processes, cst.CONCURRENT_ACTIONS, function(app, next) {
that.Client.executeRemote('prepare', app, function(err, dt) {
if (err)
Common.printError(err);
else
Common.printOut(cst.PREFIX_MSG + 'Process %s restored', app.pm_exec_path);
next();
});
}, function(err) {
return cb ? cb(null, apps) : that.speedList();
});
};
}