Capistrano Deploying to vagrant box fails to authenticate - ruby-on-rails-4

Question

I am trying to upgrade my setup to v3 and am encountering an issue that I am finding trouble to debug. I use vagrant to test a staging environment for my very small app. Here is what my config/deploy/staging.rb file looks like:
set :user, "vagrant"
set :stage, :staging
set :ssh_options, {
keys: %w(~/.vagrant.d/insecure_private_key),
forward_agent: true
}
role :all, "192.168.33.101", primary: true
set :domain_name, "domain.local"
Here is my deploy:setup command for testing:
namespace :deploy do
desc 'Setup the application (NO-OP Hook)'
task :setup do
on roles(:app) do
execute :echo, :uptime
end
end
end
When trying do anything, even just getting uptime, this is the error I get:
$ cap staging deploy:setup --trace
** Invoke staging (first_time)
** Execute staging
** Invoke load:defaults (first_time)
** Execute load:defaults
** Invoke deploy:setup (first_time)
** Execute deploy:setup
INFO [5cf8fd6d] Running /usr/bin/env echo uptime on 192.168.33.101
cap aborted!
Net::SSH::AuthenticationFailed
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/net-ssh-2.7.0/lib/net/ssh.rb:215:in `start'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:156:in `ssh'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:109:in `block in _execute'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:106:in `tap'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:106:in `_execute'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:54:in `execute'
/Users/mbridges/code/github.com/mattdbridges/cornerstone/config/deploy.rb:24:in `block (3 levels) in <top (required)>'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:42:in `instance_exec'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/backends/netssh.rb:42:in `run'
/Users/mbridges/.rbenv/versions/2.0.0-p195/lib/ruby/gems/2.0.0/gems/sshkit-1.0.0/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
Tasks: TOP => deploy:setup
I was able to authenticate just fine prior to the upgrade. Any ideas?

Answer 1

As it turns out, it has to do with the Vagrant IP address and port configuration.
A simple change
# Old
role :all, "192.168.33.101", primary: true
# New
server "vagrant#localhost:2222", roles: %w[web app db], primary: true
This solves the problem, at least for me.