bundle install doesn't work from capistrano

Question

I want to deploy my simple rails 4.0 application via capistrano 3.0.

I use bundler 1.3.5 so I add capistrano-bundler gem to integrate bundler with capistrano.

I have pretty simple configuration (almost default):

set :bundle_gemfile, -> { release_path.join('Gemfile') }
set :bundle_dir, -> { shared_path.join('bundle') }
set :bundle_flags, ''
set :bundle_without, %w{test development}.join(' ')
set :bundle_binstubs, -> { shared_path.join('bin') }
set :bundle_roles, :all

When I run the cap staging deploy --trace it fails:

[50b524bc] Running /usr/bin/env bundle --gemfile /home/webmaster/www/api/releases/20131014144650/Gemfile --path /home/webmaster/www/api/shared/bundle  --binstubs /home/webmaster/www/api/shared/bin --without test development on 125.51.3.1
DEBUG [50b144bc] Command: cd /home/webmaster/www/api/releases/20131014144650 && /usr/bin/env bundle --gemfile /home/webmaster/www/api/releases/20131014144650/Gemfile --path /home/webmaster/www/api/shared/bundle  --binstubs /home/webmaster/www/api/shared/bin --without test development
cap aborted!
bundle stdout: Nothing written
bundle stderr: Nothing written
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/command.rb:94:in `exit_status='
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:125:in `block (4 levels) in _execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:551:in `call'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:551:in `do_request'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:561:in `channel_request'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:465:in `dispatch_incoming_packets'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:221:in `preprocess'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:205:in `process'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `block in loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:269:in `wait'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:147:in `block (2 levels) in _execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:514:in `call'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/channel.rb:514:in `do_open_confirmation'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:545:in `channel_open_confirmation'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:465:in `dispatch_incoming_packets'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:221:in `preprocess'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:205:in `process'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `block in loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/net-ssh-2.7.0/lib/net/ssh/connection/session.rb:169:in `loop'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:149:in `block in _execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:106:in `tap'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:106:in `_execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:54:in `execute'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-bundler-1.0.0/lib/capistrano/tasks/bundler.cap:20:in `block (4 levels) in <top (required)>'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/abstract.rb:81:in `within'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/capistrano-bundler-1.0.0/lib/capistrano/tasks/bundler.cap:19:in `block (3 levels) in <top (required)>'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:42:in `instance_exec'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:42:in `run'
/home/omnomnom/.rvm/gems/ruby-2.0.0-p247/gems/sshkit-1.0.0/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
Tasks: TOP => deploy:updated => bundler:install

But if I copy this command and run though ssh all works fine (all gems installed successfully) How I can fix/debug it?

Answer 1

Just ran into the same issue. What worked for me was this:

1) Installing the capistrano-rvm gem and adding

require 'capistrano/rvm'

to the Capfile.

2) Adding my deployment user to the rvm group on the server:

# usermod deploy -a -G rvm

3) Creating two directories in my deployment user's home folder: .rvm and .rvm/bin

4) Adding this line to my deploy.rb file:

set :default_env, { rvm_bin_path: '~/.rvm/bin' }

Phew! That took a few hours.