minimal setup for rails4/passenger/nginx development

min_setup

#################################
#
#  本清单基于 ubuntu 12.04，
#  下个 ubuntu 的 LTS
#  发出来后，会相应更新这里的内容。我的目标是按步执行可以零错误完成安装。
#  注意，本文件只是一个清单，不是一个可以安全执行的脚本
#
#################################

##################################
#
#  Step 0—Environment Setup
#
#################################
 
# create a vps instance,login as root, and create a common user for all the tasks
ssh root@the_ip_of_vps
adduser yourusername --ingroup sudo
su yourusername
cd # go to /home/yourusername

sudo apt-get update
sudo apt-get -y install curl git-core
 
#################################
#
#  Step One—Install RBENV(Managing Ruby)
#
#################################
                                 
# nice to add ~/.gitconfig before you run the rbenv-installer
# since the installer going to feach from git repos, without the config,
# trouble can happen.
curl -k https://gist.githubusercontent.com/luckyyang/6034718/raw/20798cadefb228166e51ec92190cb73cdf626ad6/gitconfig >>~/.gitconfig
 
echo  "now install rbenv..." # https://github.com/fesplugas/rbenv-installer
curl https://raw.githubusercontent.com/fesplugas/rbenv-installer/master/bin/rbenv-installer | bash
 
# add the block to the end of ~/.profile
export RBENV_ROOT="${HOME}/.rbenv"
echo '
if [ -d "${RBENV_ROOT}" ]; then \
  export PATH="${RBENV_ROOT}/bin:${PATH}" \
  eval "$(rbenv init -)" \
fi \
' >> ~/.profile
 
source ~/.profile

#################################
#
#  Step Two—Install Ruby with RBENV
#
################################# 
 
# I see libxslt1.1 libxml things installed here too, 
# that's why gems like nokogiri will produce no error installing
# If you are installing rbenv in Ubuntu you'll probably need to install some required packages.
# You can use the provided bootstrap scripts.
 
rbenv bootstrap-ubuntu-12-04         # this may require password
 
rbenv install 2.2.0                  # ruby的版本会影响后面/etc/apache2/http.conf中passenger的设置，
rbenv global 2.2.0                   # 而且不同的ruby版本所用的gem也不一样，因此要注意。
                                     # 如果切换了ruby版本，apache配置文件（/etc/apache2/http.conf）
                                     # 要更改，bundle install要重新做。

# modify gem's settings
echo "gem: --no-ri --no-rdoc" | sudo tee -a /home/vagrant/.gemrc

#################################
#
#  Step Three—Install Bundler(Managing Dependencies of Ruby Gems)
#
################################# 
 
gem install bundler    #这样安装的gem是全局的，gemfile中安装的gem是为某个具体的项目使用的
rbenv rehash           #gem安装完之后要做一下rehash，将bundler的PATH加入到$PATH中，才可以在
                       #命令行中使用bundle命令
 
# 可选步骤：使用taobao的源(如果提示安装bundler找不到源)
sudo gem sources -r https://rubygems.org
sudo gem sources -a http://ruby.taobao.org
 
#################################
#
#  Step Four—Install Rails
#
################################# 

gem install rails -v 4.2.0        # this is safer to put in a project's Gemfile
  
#################################
#
#  Step Five—Install Passenger
#
#################################

sudo apt-get install -y apache2-prefork-dev libcurl4-openssl-dev libaprutil1-dev
gem install passenger       #安装全局的passenger
rbenv rehash

#################################
#
#  Step Six—Install Nginx
#
#################################

passenger-install-nginx-module

#https://github.com/phusion/passenger/wiki/Why-can't-Phusion-Passenger-extend-my-existing-Nginx%3F

#https://www.digitalocean.com/community/tutorials/how-to-install-rails-and-nginx-with-passenger-on-ubuntu
#Passenger first checks that all of the dependancies it needs to work are installed. 
#If you are missing any, Passenger will let you know how to install them, 
#either with the apt-get installer on Ubuntu.

#After you download any missing dependancies, restart the installation. 
#Type: passenger-install-nginx-module once more into the command line.

#Passenger offers users the choice between an automated setup or a customized one. 
#Press 1 and enter to choose the recommended, easy, installation.


# use nginx as service daemon
#(https://www.linode.com/docs/websites/nginx/websites-with-nginx-on-ubuntu-12-04-lts-precise-pangolin/#create-an-init-script-to-manage-nginx)
wget -O init-deb.sh http://www.linode.com/docs/assets/1139-init-deb.sh
mv init-deb.sh /etc/init.d/nginx
chmod +x /etc/init.d/nginx
/usr/sbin/update-rc.d -f nginx defaults

#You can now start, stop, and restart nginx just like any other server daemon.
#For example, to start the server, issue the following command:

/etc/init.d/nginx start

#edit nginx configurations
sudo vi /opt/nginx/conf/nginx.conf 

#server_name – your IP or domain name, root – location of rails app public folder

server {
  listen 80 default_server;
  server_name www.maodou.com maodou.io;
  passenger_enabled on;
  passenger_app_env development;
  root /vagrant/public/;
}


# https://help.github.com/articles/generating-ssh-keys
# add ssh key to github, so that you can get a read-write repo clone
# ssh-keygen -t rsa -C "2411mail@gmail.com"

sudo apt-get install -y nodejs # so that I dont need to install therubyracer

#################################
#
#  Step Seven—Install Database
#
#################################

#install mysql server
sudo apt-get install mysql-server libapache2-mod-auth-mysql php5-mysql 
sudo mysql_install_db
# and then 
sudo /usr/bin/mysql_secure_installation
mysql -u root -p #login to mysql shell with password you just set
                 #while in mysql shell create new database and add this to database.yml production

CREATE DATABASE database name;
CREATE USER 'alex'@'localhost' IDENTIFIED BY 'set_your_password_here';
GRANT ALL PRIVILEGES ON your_database.* TO 'alex'@'localhost' WITH GRANT OPTION;
exit;

#install mysql adapter for rails
sudo apt-get install libmysql-ruby libmysqlclient-dev