Setting up a Rails 3.2 server in the Rackspace Cloud
with Ubuntu 12.04, Nginx, Passenger, Nodejs, RVM, Ruby 1.9.3
also setting up a deploy process with Capistrano + Github
1) Create a fresh new 1024MB server on Rackspace
2) Login to the server as root
3) Create a user account for deployment
adduser deployer adduser deployer sudo
5) Login to the server as deployer
6) Install libraries needed
sudo apt-get install git-core curl gcc make libcurl4-openssl-dev libreadline-dev libxslt-dev libxml2-dev
curl -L get.rvm.io | bash -s stable
8) Find RVM requirements and install them (read the output carefully). If you see RVM not installed try opening a fresh terminal
rvm notes rvm requirements
If you see RVM not installed, then try logging out and back in
Read and find the apt-get command and run it
It should look something like:
sudo apt-get install build-essential openssl libreadline6 libreadline6-dev curl git-core zlib1g zlib1g-dev libssl-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt-dev autoconf libc6-dev ncurses-dev automake libtool bison subversion pkg-config
rvm pkg install zlib rvm pkg install openssl rvm install 1.9.3 --default --with-openssl-dir=$HOME/.rvm/usr
Replace the version above with the one you want as default 1.9.* is recommended if this is a new project
sudo apt-get install python-software-properties sudo add-apt-repository ppa:chris-lea/node.js sudo apt-get update sudo apt-get install nodejs npm
You should log out and in after this
13) Install Nginx and setup to use Passenger
rvmsudo passenger-install-nginx-module
You should choose option 1 to install Nginx and just go with the default install path
Once the install is done we can configure Nginx
sudo nano /opt/nginx/conf/nginx.conf
Turn gzip compression on by default
Add this below the gzip setting
passenger_default_user deployer;
Add a server setup for our Rails app
server { listen 80; charset utf-8; server_name localhost; root /var/www/helloworld/public; passenger_enabled on; rails_env production; # fast passenger and rails respawn # from http://stackoverflow.com/a/2329221 rails_spawn_method smart; rails_app_spawner_idle_time 0; rails_framework_spawner_idle_time 0; location ~ ^/(assets)/ { root /var/www/hellworld/public; gzip_static on; expires max; add_header Cache-Control public; # access_log /dev/null; } }
14) Make Nginx start on boot
git clone git://github.com/jnstq/rails-nginx-passenger-ubuntu.git sudo mv rails-nginx-passenger-ubuntu/nginx/nginx /etc/init.d/nginx sudo chown root:root /etc/init.d/nginx sudo /usr/sbin/update-rc.d -f nginx defaults
sudo mkdir /var/www/ sudo chown deployer /var/www/ cd /var/www/ rails new helloworld
cd helloworld nano Gemfile
Uncomment the rubyracer gem
gem 'therubyracer', :platforms => :ruby
sudo /etc/init.d/nginx restart
http://your.rackspace.server.ip
You should see your HelloWorld Rails app
Your server should now be setup
So lets setup Capistrano Deployment from Github on your local/dev machine
1) Create local ssh access to Github (if you havenât already)
Do not enter a passphrase
copy the ssh key into your personal Github SSH keys
https://github.com/settings/ssh
2) Create local RVM, Ruby, Rails
If you donât already have RVM and Ruby installed on your development machine follow instructions 6->10 from aboveBundler not installedthis can be caused by the following line missing from your bash profile (located at ~/.bashrc )
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"
 It is likely that you wonât need Nginx and Passenger on your development box you can just use webrick or foreman to do most of your dev testing
3) If you havenât already lets clone or create an app
Browse to a directory where you keep project code e.g.
Now we can clone an existing Github repo (skip to next step if you clone)
or create a fresh rails project:
Go to github.com/new to create a new Github repo for this then
rails new helloworld cd helloworld git init git add . git commit -m 'first commit' git add remote add origin [email protected]:UserName/ProjectName.git git push -u origin master
From help.github.com/articles/deploying-with-capistrano
cd ~/projects/helloworld gem install rvm-capistrano capify .
If you are using a public Github repo Do not add the generated Capistrano files config/deploy.rb and Capfile to the Github repo because they are only relevant to a development machine and may contain sensitive data
# Ignore configs in capify docs (added after first commit) /config/deploy* /Capfile
5) Give Rackspace Server SSH access to Github
Do not enter a passphrase
cat /home/deployer/.ssh/id_rsa.pub
Copy the ssh key into your Github project Deploy keys
https://github.com/UserName/ProjectName/admin/keys
6) Setup Capistrano to use this repo
Uncomment the load âdeploy/assetsâ line
There are a lots of options on how to set up Capistrano. I would recommend a setup called multistage as it allows for future use of various environments (staging)Â gist.github.com/3596906
Although if you want there are some simpler setups gist.github.com/3596877
If you want to use multistage you will need to set up individual environment files
nano config/deploy/production.rb
Example production setup gist.github.com/3597275
7) Deploy using Capistrano
cap production deploy:setup cap production deploy cap production deploy:migrations
8) Alter Production Server Nginx config to point to the deployment location
Replace the location of the server to the capistrano deployment location (/current/)
server { listen 80; charset utf-8; server_name localhost; root /var/www/helloworld/current/public; passenger_enabled on; rails_env production; # fast passenger and rails respawn # from http://stackoverflow.com/a/2329221 rails_spawn_method smart; rails_app_spawner_idle_time 0; rails_framework_spawner_idle_time 0; location ~ ^/(assets)/ { root /var/www/hellworld/current/public; gzip_static on; expires max; add_header Cache-Control public; # access_log /dev/null; } }
Now we should have a good Development and Deploy environment
Steps to make modifications
1) Alter code on development machine
2) Git add, commit and push to Github
3) Cap deploy to push those changes to the production server
I will probably write up more on these topics separately using the same system
Open sourcing code while maintaining the security of sensitive data using Capistrano and Github
Using Rackspace Cloud DB on Rails
Setting up Memcached with Rails
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