Setup a new server for rails

new_server_setup.rb

# login to server

$ ssh [email protected]

# change password
$ passwd

# add user
$ adduser user

# Add Root Privileges to the user
$ visudo

# add `user    ALL=(ALL:ALL) ALL` below `root    ALL=(ALL:ALL) ALL`
# then..
$ ctrl-x

# Set a hostname
$ echo "plato" > /etc/hostname
$ hostname -F /etc/hostname

# In your own mac
$ echo "12.34.56.78      plato.com        plato" >> /etc/hosts

# So that you can
$ ssh [email protected]

$ mkdir ~/.ssh

# brew install ssh-copy-id
$ ssh-copy-id [email protected]
# or 
# scp ~/.ssh/id_rsa.pub [email protected]:/home/user/.ssh/uploaded_key.pub
# ssh [email protected] "echo `cat ~/.ssh/uploaded_key.pub` >> ~/.ssh/authorized_keys"

# so that ~/.ssh/authorized_keys of server will have your pub key
# and you can login without a password
$ ssh [email protected](without a password)

# Disable the password login
$ sudo vim /etc/ssh/sshd_config
change `PermitRootLogin true` to `PermitRootLogin without-password`

# update and reboot
$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo reboot

$ sudo apt-get install zsh
$ chsh -s /bin/zsh
$ sudo apt-get install git
$ curl -L https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh | sh
$ source ~/.zshrc

$ sudo apt-get install curl
$ curl -L get.rvm.io | bash -s stable
$ source ~/.rvm/scripts/rvm
$ rvm requirements  # need password
$ rvm install ruby-2.1.1

$ sudo apt-get nodejs
$ gem install bundler

$ sudo apt-get install nginx
$ gem install unicorn

$ sudo apt-get install postgresql postgresql-server-dev-9.1
$ sudo -u postgres psql
$ create user username with password 'password';
$ create database projectname_production owner username; # Remember to set host to localhost in database.yml
# When you use pg in commandline, you may meet the problem 'Peer authentication failed for user ""'
# You can try add "export PGHOST=localhost" to ~/.zshrc
change user role: http://www.postgresql.org/docs/9.1/static/sql-alteruser.html

# Rails deploy
# refer to https://github.com/tony612/mina-rails-unicorn-nginx-god