Added commands for configuring Nginx

Author: Benjamin

section9/lectures/139_setting_up_nginx_and_our_rest_api/commands.md

@@ -0,0 +1,117 @@
+## Setting up Nginx
+To install and cofigure Nginx on your server, follow the following instructions.
+
+First, you need to update your server by running
+
+```bash
+sudo apt-get update
+```
+
+To install Nginx, run
+
+```bash
+sudo apt-get install nginx 
+```
+
+Allow Nginx access through firewall (otherwise incoming requests will be blocked by the firewall)
+
+```bash
+sudo ufw enable
+sudo ufw allow 'Nginx HTTP'
+```
+
+Also since we have enabled firewall, remember to allow ssh through the firewall, else you will get locked out of the server.
+
+```bash
+sudo ufw allow ssh
+```
+
+You can check firewall status by using
+
+```bash
+sudo ufw status
+```
+
+To check Nginx status, use
+
+```bash
+systemctl status nginx
+```
+
+The following commands stop, start and restart Nginx respectively.
+
+```bash
+systemctl stop nginx
+systemctl start nginx
+systemctl restart nginx
+```
+
+### Configuring Nginx
+Create a new file for the items REST API configuration.
+
+```bash
+sudo vi /etc/nginx/sites-available/items-rest.conf
+```
+
+Press "i" key (insert mode), copy and paste the following to the file
+
+```bash
+server {
+	listen 80;
+	real_ip_header X-Forwarded-For;
+	set_real_ip_from 127.0.0.1;
+	server_name localhost;
+
+	location / {
+		include uwsgi_params;
+		uwsgi_pass unix:/var/www/html/items-rest/socket.sock;
+		uwsgi_modifier1 30;
+	}
+
+	error_page 404 /404.html;
+	location = 404.html {
+		root /usr/share/nginx/html;
+	}
+
+	error_page 500 502  503 504 50x.html;
+	location = /50x.html {
+		root /usr/share/nginx/html;
+	}
+}
+``` 
+
+After writing and quiting the file (escape key then :wq enter) enable the configuration by running
+
+```bash
+sudo ln -s /etc/nginx/sites-available/items-rest.conf /etc/nginx/sites-enabled/
+```
+
+### Create the socket.sock file and clone the items rest app
+Create a directory/folder for the app
+
+```bash
+sudo mkdir /var/www/html/items-rest
+```
+
+Since the director was created with root user, give access to the unix user ("jose" in our case) by making the user the owner of the directory.
+
+```bash
+sudo chown jose:jose /var/www/html/items-rest
+```
+
+Got to the directory, clone the app and install dependencies. Run the following commands one by one in that order.
+
+```bash
+cd /var/www/html/items-rest
+git clone https://github.com/schoolofcode-me/stores-rest-api.git .
+mkdir log
+sudo apt-get install python-pip python3-dev libpq-dev
+pip install virtualenv
+virtualenv venv --python=python3.5
+source venv/bin/activate
+pip install -r requirements.txt 
+```
+
+
+
+