expose some pm2 cli interface via hubot command.

[chitacan]

if we can restart hubot on chat room (like hubot restart), it could be nice.

we can control pm2 on script.

[imazine]

💯

[mooyoul]

You can use pm2.restart via PM2 API. It's already exposed.

• See: https://github.com/Unitech/PM2/blob/master/ADVANCED_README.md#programmatic-api

This is an example snippet which handle pm2 via Express.

• Note: hubot, or express will NOT send any responses after restart/start command was executed. because pm2 immediately kills process.

/** Module depdendencies. */
var pm2 = require('pm2'),
    Promise = require('bluebird'),
    fs = require('fs'),
    _ = require('underscore');

/** PM2 Promises */
var pm2connect = Promise.promisify(pm2.connect),
    pm2list = Promise.promisify(pm2.list),
    pm2restart = Promise.promisify(pm2.restart),
    pm2stop = Promise.promisify(pm2.stop);


var DevOps = module.exports = exports = {};

DevOps.getPM2List = function (req, res) {
    pm2connect().then(function () {
        return pm2list();
    }).then(function (list) {
        res.send(list);
    }).catch(function (e) {
        res.sendException(500, {reason: e.message});
    });
};

DevOps.PM2Restart = function (req, res) {
    pm2connect().then(function () {
        return pm2restart(process.env.PM2_APP_NAME);
    }).then(function () {
        return pm2.list();
    }).then(function (list) {
        res.send(list);
    }).catch(function (e) {
        res.sendException(500, {reason: e.message});
    });
};

DevOps.PM2Stop = function (req, res) {
    pm2connect().then(function () {
        return pm2stop(process.env.PM2_APP_NAME);
    }).then(function () {
        return pm2.list();
    }).then(function (list) {
        res.send(list);
    }).catch(function (e) {
        res.sendException(500, {reason: e.message});
    });
};

DevOps.getPM2StdoutLog = function (req, res) {
    pm2connect().then(function () {
        return pm2list();
    }).then(function (list) {
        fs.createReadStream(_.pluck(list, 'pm2_env')[0]['pm_out_log_path'])
            .pipe(res);
    }).catch(function (e) {
        res.sendException(500, {reason: e.message});
    });
};

DevOps.getPM2StderrLog = function (req, res) {
    pm2connect().then(function () {
        return pm2list();
    }).then(function (list) {
        fs.createReadStream(_.pluck(list, 'pm2_env')[0]['pm_err_log_path'])
            .pipe(res);
    }).catch(function (e) {
        res.sendException(500, {reason: e.message});
    });
}; 

[chitacan]

@mooyoul cool !! that really can help us 🙇