Auto deploy from Bitbucket or any other git repository

Update aptitude first

$ sudo apt-get update

Install expect

$ sudo apt-get install expect

Create a directory named trigger in your home directory

$ cd
$ mkdir trigger
$ cd trigger

Create following files inside the trigger directory. trigger.js

$ cat trigger.js
var server_port = <new_port_for_trigger>;

var sys = require('sys');
var exec = require('child_process').exec;
var child;

var http = require('http');
var express = require('express');
var app = express();
var server_get = require('http').Server(app);

app.post('/update', function(req, res) {
    child = exec("./update_repo.sh", function(error, stdout, stderr) {
                console.log('stdout: ' + stdout);
                console.log('stderr: ' + stderr);
                if (error !== null) {
                    console.log('exec error: ' + error);
                }
    });

    res.send("SUCCESS");
});

app.listen(server_port, function() {
    console.log('Example app listening on port ' + server_port);
}

package.json

$ cat package.json
{
    "name": "Trigger",
    "version": "0.0.1",
    "scripts": {
        "start": "node server"
    },
    "dependencies": {
        "express": "^4.14.0",
        "http": "0.0.0",
        "https": "^1.0.0"
    }
}

update_repo.sh

$ cat update_repo.sh
#!/bin/bash
cd <your_git_repo>
~/trigger/git_pull_helper.sh
pm2 restart server

git_pull_helper.sh

$ cat git_pull_helper.sh
#!/usr/bin/expect -f
spawn git pull
expect "ass"
send "<your_ssh_key_pass_phrase>\r"
interact

Update permission for update_repo.sh and git_pull_helper.sh

$ chmod +x update_repo.sh
$ chmod +x git_pull_helper.sh

Start your trigger NodeJS server

$ pm2 start trigger.js

• Configure you nginx if you are using one
• Don't forget to enable firewall to allow the new port

Update in bitbucket

• Got Settings
• Select Webhooks in Workflow section
• Click Add webhook button
• Give name
• Enter your url as *<your_domain_name>.<ext>:<your_port_for_trigger>/update*
• Press save button

Or follow the steps provided by your git server.