#133 Capistrano Tasks (revised)

Mar 24, 2012 | 10 minutes | Tools, Deployment

Learn the basics of writing Capistrano tasks, how to set variables, and run commands on a remote server. Then peak into the internals of Capistrano's deploy tasks to see how they work.

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          terminal
        
rails new store
bundle
capify .
cap hello
bundle exec cap hello
ssh deployer@72.14.183.209 'cat ~/hello'
ssh deployer@72.14.183.209 'cat /hello'
cap -T
cap -e deploy

          Gemfile
        
gem 'capistrano'

          config/deploy.rb
        
server "72.14.183.209", :web, :app, :db, primary: true
set :user, "deployer"

set :recipient, "Ruby"

default_run_options[:pty] = true

task :hello, roles: :db do
  puts "Hello #{fetch(:recipient, "World")}"
  # run "echo 'Hello World' > ~/hello"
  run "#{sudo} cp ~/hello /hello"
  # goodbye
end

task :goodbye do
  puts "Goodbye #{recipient}"
end
after :hello, :goodbye