Rails :: Deploy :: Application

 http://developer.apple.com/tools/deployonrailsleopard.html

First we have go for Software Configuration management.(SCM)

Ex. SVN, but i will use git here

It can be installed using

$ gem install git

or

$ sudo apt-get install git-core git-doc

Create the git repository

$ mkdir -p ~/git/app.git

- where app is the ruby application name

$ cd ~/git/app.git

$ git --bare init

Initialized empty Git repository in /home/kr/REPOSITORY/git/mum.git/

The directories are created here.

$ ls -l 

total 32
drwxr-xr-x 2 kr localuser 4096 2010-05-20 09:30 branches/
drwxr-xr-x 2 kr localuser 4096 2010-05-20 09:30 hooks/
drwxr-xr-x 2 kr localuser 4096 2010-05-20 09:30 info/
drwxr-xr-x 4 kr localuser 4096 2010-05-20 09:30 objects/
drwxr-xr-x 4 kr localuser 4096 2010-05-20 09:30 refs/
-rw-r--r-- 1 kr localuser   66 2010-05-20 09:30 config
-rw-r--r-- 1 kr localuser   73 2010-05-20 09:30 description
-rw-r--r-- 1 kr localuser   23 2010-05-20 09:30 HEAD

To setup the ssh key on the server

$ test -e ~/.ssh/id_dsa.pub || ssh-keygen -t dsa
Generating public/private dsa key pair.
Enter file in which to save the key (/home/kr/.ssh/id_dsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/kr/.ssh/id_dsa.
Your public key has been saved in /home/kr/.ssh/id_dsa.pub.
The key fingerprint is:
so:me:..:fi:ng:er:..:pr:in:t. kr@BIOINFO
The key's randomart image is:
+--[ DSA 1024]----+
|    ..           |
|     o.          |
|    ...          |
|    .. .         |
|. .o+ . S        |
|.+.+o. o         |
|o.. E.=          |
|.   os..         |
|     o+o.        |
+-----------------+

$ cat ~/.ssh/id_dsa.pub >> ~/.ssh/authorized_keys2

Setup git subversion

- in the Ruby application directory eg. mum

$ vim .gitignore

db/*.sqlite3
log/*.log
tmp/**/*

Now commit everything to the local repository which was generated above

$ git init
Initialized empty Git repository in /home/kr/Public/mum/.git/

$ git add .

$ git commit -m "initial commit"
[master (root-commit) b3dd69e] initial commit
 Committer: Kashi Revanna
Your name and email address were configured automatically based
on your username and hostname. Please check that they are accurate.
You can suppress this message by setting them explicitly:

    git config --global user.name "Your Name"
    git config --global user.email you@example.com

If the identity used for this commit is wrong, you can fix it with:

    git commit --amend --author='Your Name '

 60 files changed, 9111 insertions(+), 0 deletions(-)
 create mode 100644 .gitignore
 create mode 100644 README
 create mode 100644 Rakefile
 create mode 100644 app/controllers/application.rb
 create mode 100644 app/controllers/mum_controller.rb
 create mode 100644 app/helpers/application_helper.rb
 create mode 100644 app/helpers/mum_helper.rb
 create mode 100644 app/views/mum/index.rhtml
 create mode 100644 config/boot.rb
 create mode 100644 config/database.yml
 create mode 100644 config/environment.rb
 create mode 100644 config/environments/development.rb
 create mode 100644 config/environments/production.rb
 create mode 100644 config/environments/test.rb
 create mode 100644 config/initializers/inflections.rb
 create mode 100644 config/initializers/mime_types.rb
 create mode 100644 config/initializers/new_rails_defaults.rb
 create mode 100644 config/locales/en.yml
 create mode 100644 config/routes.rb
 create mode 100644 doc/README_FOR_APP
 create mode 120000 doc/api
 create mode 100644 public/404.html
 create mode 100644 public/422.html
 create mode 100644 public/500.html
 create mode 100755 public/dispatch.cgi
 create mode 100755 public/dispatch.fcgi
 create mode 100755 public/dispatch.rb
 create mode 100644 public/favicon.ico
 create mode 100644 public/images/rails.png
 create mode 100644 public/index.html
 create mode 100644 public/javascripts/application.js
 create mode 100644 public/javascripts/controls.js
 create mode 100644 public/javascripts/dragdrop.js
 create mode 100644 public/javascripts/effects.js
 create mode 100644 public/javascripts/prototype.js
 create mode 100644 public/robots.txt
 create mode 100755 script/about
 create mode 100755 script/console
 create mode 100755 script/dbconsole
 create mode 100755 script/destroy
 create mode 100755 script/generate
 create mode 100755 script/performance/benchmarker
 create mode 100755 script/performance/profiler
 create mode 100755 script/performance/request
 create mode 100755 script/plugin
 create mode 100755 script/process/inspector
 create mode 100755 script/process/reaper
 create mode 100755 script/process/spawner
 create mode 100755 script/runner
 create mode 100755 script/server
 create mode 100644 test/functional/mum_controller_test.rb
 create mode 100644 test/performance/browsing_test.rb
 create mode 100644 test/test_helper.rb
 create mode 120000 vendor/actionmailer
 create mode 120000 vendor/actionpack
 create mode 120000 vendor/activemodel
 create mode 120000 vendor/activerecord
 create mode 120000 vendor/activeresource
 create mode 120000 vendor/activesupport
 create mode 120000 vendor/rails
 create mode 120000 vendor/railties

To push all the code to the server

$ git remote add origin ssh://user@hostname/~/REPOSITORY/git/mum.git

- shouldnt return any error

$ git push origin master

 The authenticity of host 'localhost (::1)' can't be established.
RSA key fingerprint is

so:me:..:fi:ng:er:..:pr:in:t.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'localhost' (RSA) to the list of known hosts.
Counting objects: 82, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (64/64), done.
Writing objects: 100% (82/82), 82.79 KiB, done.
Total 82 (delta 14), reused 0 (delta 0)
To ssh://localhost/~/REPOSITORY/git/mum.git
 * [new branch]      master -> master

Check if this gem is already installed

$ gem list -d capistrano

If not found, install it

 $ gem install capistrano

Check by typing

$ cap

- mine gave error saying it is not found, so

$ sudo apt-get install capistrano

Check again

$ cap

- it should give a list of options.

Steps

$ capify .

[add] writing `./Capfile'

[add] writing `./config/deploy.rb'

[done] capified!

Edit the config/deploy.rb

my file

## Some important information
set :user, "kr"
set :domain, "localhost"
set :application, "mum"

## file paths
set :repository,  "#{user}@#{domain}:/home/../git/#{application}.git"

# If you aren't deploying to /u/apps/#{application} on the target
# servers (which is the default), you can specify the actual location
# via the :deploy_to variable:
# set :deploy_to, "/var/www/#{application}"
set :deploy_to, "/home/#{user}/Public/#{application}"

# If you aren't using Subversion to manage your source code, specify
# your SCM below:
# set :scm, :subversion
set :scm, "git"
set :branch, "master"
set :scm_verbose, true
set :use_sudo, false

## task that causes Passenger to initiate a restart
namespace :deploy do
    task :restart do
        run "touch #{current_path}/tmp/restart.txt"
    end
end

role :app, "localhost"
role :web, "localhost"
role :db,  "localhost", :primary => true

This is how you deploy the server using cap

$ cap deploy:setup
  * executing `deploy:setup'
  * executing "mkdir -p 

/home/kr/Public/mum 

/home/kr/Public/mum/releases 

/home/kr/Public/mum/shared 

/home/kr/Public/mum/shared/system 

/home/kr/Public/mum/shared/log 

/home/kr/Public/mum/shared/pids 

&& chmod g+w 

/home/kr/Public/mum 

/home/kr/Public/mum/releases 

/home/kr/Public/mum/shared 

/home/kr/Public/mum/shared/system 

/home/kr/Public/mum/shared/log 

/home/kr/Public/mum/shared/pids"
    servers: ["localhost"]
    [localhost] executing command
    command finished

$ cap deploy:check
  * executing `deploy:check'
  * executing "test -d /home/krevanna/Public/mum/releases"
    servers: ["localhost"]
    [localhost] executing command
    command finished
  * executing "test -w /home/krevanna/Public/mum"
    servers: ["localhost"]
    [localhost] executing command
    command finished
  * executing "test -w /home/krevanna/Public/mum/releases"
    servers: ["localhost"]
    [localhost] executing command
    command finished
  * executing "which git"
    servers: ["localhost"]
    [localhost] executing command
    command finished
You appear to have all necessary dependencies installed

$ cap deploy:migrations

$ cap deploy

- It shouldnt give errors

Also modify the Apache virtual host as below

From the web-browser, the url is localhost/mum

  ServerAdmin webmaster@localhost
  ServerName localhost
  DocumentRoot /home/kr/Public/mum/public
 
     Options Indexes FollowSymLinks MultiViews
     AllowOverride None
     Order allow,deny
     allow from all
 


This is very educational guide on passenger setup
http://www.modrails.com/documentation/Users%20guide%20Apache.html

More notes on Capistrano

 http://www.capify.org/index.php/Capistrano