Create deploy.js

[RickySavage2020]

var cmd = require('node-cmd');
var path, node_ssh, ssh, fs;
fs = require('fs');
path = require('path');
node_ssh = require('node-ssh');
ssh = new node_ssh();

// the method that starts the deployment process
function main() {
console.log('Deployment started.');
sshConnect();
}

// installs PM2
function installPM2() {
return ssh.execCommand(
'sudo npm install pm2 -g', {
cwd: '/home/ubuntu'
});
}

// transfers local project to the remote server
function transferProjectToRemote(failed, successful) {
return ssh.putDirectory(
'../hackathon-starter',
'/home/ubuntu/hackathon-starter-temp',
{
recursive: true,
concurrency: 1,
validate: function(itemPath) {
const baseName = path.basename(itemPath);
return (
baseName.substr(0, 1) !== '.' && baseName !== 'node_modules' // do not allow dot files
); // do not allow node_modules
},
tick: function(localPath, remotePath, error) {
if (error) {
failed.push(localPath);
console.log('failed.push: ' + localPath);
} else {
successful.push(localPath);
console.log('successful.push: ' + localPath);
}
}
}
);
}

// creates a temporary folder on the remote server
function createRemoteTempFolder() {
return ssh.execCommand(
'rm -rf hackathon-starter-temp && mkdir hackathon-starter-temp', {
cwd: '/home/ubuntu'
});
}

// stops mongodb and node services on the remote server
function stopRemoteServices() {
return ssh.execCommand(
'pm2 stop all && sudo service mongod stop', {
cwd: '/home/ubuntu'
});
}

// updates the project source on the server
function updateRemoteApp() {
return ssh.execCommand(
'cp -r hackathon-starter-temp/* hackathon-starter/ && rm -rf hackathon-starter-temp', {
cwd: '/home/ubuntu'
});
}

// restart mongodb and node services on the remote server
function restartRemoteServices() {
return ssh.execCommand(
'cd hackathon-starter && sudo service mongod start && pm2 start app.js', {
cwd: '/home/ubuntu'
});
}

// connect to the remote server
function sshConnect() {
console.log('Connecting to the server...');

ssh
.connect({
// TODO: ADD YOUR IP ADDRESS BELOW (e.g. '12.34.5.67')
host: '34.207.103.53',
username: 'ubuntu',
privateKey: 'hs-key.pem'
})
.then(function() {
console.log('SSH Connection established.');
console.log('Installing PM2...');
return installPM2();
})
.then(function() {
console.log('Creating hackathon-starter-temp folder.');
return createRemoteTempFolder();
})
.then(function(result) {
const failed = [];
const successful = [];
if (result.stdout) {
console.log('STDOUT: ' + result.stdout);
}
if (result.stderr) {
console.log('STDERR: ' + result.stderr);
return Promise.reject(result.stderr);
}
console.log('Transferring files to remote server...');
return transferProjectToRemote(failed, successful);
})
.then(function(status) {
if (status) {
console.log('Stopping remote services.');
return stopRemoteServices();
} else {
return Promise.reject(failed.join(', '));
}
})
.then(function(status) {
if (status) {
console.log('Updating remote app.');
return updateRemoteApp();
} else {
return Promise.reject(failed.join(', '));
}
})
.then(function(status) {
if (status) {
console.log('Restarting remote services...');
return restartRemoteServices();
} else {
return Promise.reject(failed.join(', '));
}
})
.then(function() {
console.log('DEPLOYMENT COMPLETE!');
process.exit(0);
})
.catch(e => {
console.error(e);
process.exit(1);
});
}

main();