setup script

[ashwin31]

script to setup docker-box on first installation for os: ubuntu-16.04-x64

• [x] update os
• [x] install docker if its not available
• [x] enable docker api mode
• [x] add firewall rule to disallow anyone to access docker api from outside
• [ ] install postgres latest
• [ ] install nginx
• [ ] install and configure uswgi
• [x] install all necessary packages for django
• [ ] create user and configure it in django project
• [x] create admin user and give the password to login
• [x] project should run on some port like 23949
• [ ] it will be better if it can be configured on a domain by taking input from user as part of installation process. then, we can run it with ssl provided by certbot.
• [ ] generate dynamic django secret key. store and serve it using ENV. This makes sure not to mess up when we update the project.