Setup multistage deployment with Capistrano Passenger and SVN with Staging Development Production environments

When application needs to be set on different environment like staging and development question comes  how to manage cap deploy ?

Here are easy steps which will guide to setup and manage with SVN and Capistrano

Setup multistage deployment with Capistrano
1)    Install capistrano and capistrano multistage
2)    Capify your project
3)    Prepare the deploy / directory
4)    Create the deployment recipes

For my project i have created development and production environment. Name your stages whatever you want. but, never name one of your stages stage — it’s a reserved word. We Can name it “staging”.

1) Install capistrano and capistrano multistage

gem install capistrano –no-ri –no-rdoc
gem install capistrano-ext –no-ri –no-rdoc

2) Capify your project

capify you project with following command in project root folder


capify .

3) Prepare the deploy / directory

mkdir config/deploy
touch config/deploy/development.rb
touch config/deploy/production.rb

4) Create the deployment recipes

require ‘capistrano/ext/multistage’

set :stages, %w(development production)
set :default_stage, “development”
set :application, “application”

set :user, “username”
set :password, “password”

set :repository, “https://domain/svn/project/trunk”
set :scm, :subversion
set :scm_username, “repository_username”
set :scm_username, “repository_password”
set :deploy_via, :export

# deploy using “ssh-add”, then “cap deploy”
ssh_options[:forward_agent] = true
set :ssh_options, {:forward_agent => true}
set :use_sudo, false

# If you are using Passenger mod_rails uncomment this:
namespace :deploy do
task :start do ; end
task :stop do ; end

task :install_configs
#perform specify operations like set path or other stuff here
end

task :restart, :roles => :app, :except => { :no_release => true } do
run “#{try_sudo} touch #{File.join(current_path,’tmp’,’restart.txt’)}”
end
end

after(‘deploy:update_code’, “deploy:cleanup”, ‘deploy:install_configs’)

 

Now it’s turn to set both files which we have created in config/deploy 1) development.rb  2) production.rb

Set your development.rb

server “development.domain.com”, :app, :web, :db, :primary => true
set :deploy_to, “/var/www/development.domain.com” #path where you want to deploy application on server
set :db_config, “database-development.yml”

namespace :perform do
task :install_configs
#perform specify operations like set path or other stuff here
end
end

after(“deploy”, “perform:install_configs”)

Set your production.rb

server “production.domain.com”, :app, :web, :db, :primary => true
set :deploy_to, “/var/www/production.domain.com” #path where you want to deploy application on server
set :db_config, “database-production.yml”

namespace :perform do
task :install_configs
#perform specify operations like set path or other stuff here
end
end

after(“deploy”, “perform:install_configs”)

 

Great, you are ready to deploy with both environments

When you deploy recipe with cap deploy it will start deploying default environment whatever is set, if you want to deploy specific for environment please run command cap “environment” deploy in our case cap production deploy .

All set with multistage Capistrano deployment with minimal configuration.Lot more for rails 3 and RVM configuration.