9 Aug 2016

Friend Circles(IV)

Deployment

I created a droplet on digital ocean to serve this project. The parameter of the server is:

I will list some memos for the deployment process for future reference.

ssh root@{ip} In the ubuntu terminal: These establish some basic dependencies for deployment and the Linux server.

update packages

sudo apt-get update
sudo apt-get install -y build-essential openssl libssl-dev pkg-config

In the ubunt terminal: These install the node package manager n and updated node.

sudo npm install -g n
sudo n stable (or whichever node version you want e.g. 5.9.0)

node -v should give you the stable version of node, or the version that you just installed.

Install NGINX and git:

sudo apt-get install nginx
sudo apt-get install git

Go to nginx’s sites-available directory:
```
cd /etc/nginx/sites-available
```
Enter vim:
```
sudo vim 
```
Paste and modify the following code into vim after hitting i:
```
server {
  listen 80;
  location / {
      proxy_pass http://:8000;
      proxy_http_version 1.1;
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection 'upgrade';
      proxy_set_header Host $host;
      proxy_cache_bypass $http_upgrade;
  }
}
```
This code says: have the reverse proxy server (nginx) listen at port 80. When going to root /, listen for http requests as though you were actually http:// your private ip and the port your server is listening e.g @8000 or @6789 etc.
Remove the defaults from /etc/nginx/sites-available
```
cd /etc/nginx/sites-available  
sudo rm default
```

Create a symbolic link from sites-enabled to sites available

sudo ln -s /etc/nginx/sites-available/ /etc/nginx/sites-enabled/

Remove the defaults from /etc/nginx/sites-enabled/
```
cd /etc/nginx/sites-enabled/ 
sudo rm default
```

Install pm2 globally pm2.5 or pm2. This is a production process manager that allows us to run node processes in the background.
```
sudo npm install pm2 -g
```

Try some stuff with pm2!

pm2 start server.js
pm2 stop 0
pm2 restart 0
sudo service nginx reload && sudo service nginx restart

You might have some components that you still need to install: (get your dependencies from npm (assuming your git project has a package.json))
```
npm install
```

IF USING BOWER (assuming you have a bower.json)

sudo npm install bower -g
sudo bower install --allow-root

Set up a key

sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10

setup mongodb in a source list

echo "deb http://repo.mongodb.org/apt/ubuntu precise/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list

Restart your pm2 project and make sure the nginx config’s are working:

pm2 stop 0
pm2 restart 0
sudo service nginx reload && sudo service nginx restart

At this point, all the works are done. The project is on live.