V1.1.2 - YAML parsing error => TypeError: no implicit conversion of ERB into String

[pRdm]

I've recently upgraded cap-ec2 from 1.0.0 to 1.1.2. And started getting this:

** Invoke production (first_time)
** Execute production
** Invoke load:defaults (first_time)
** Execute load:defaults
cap aborted!
TypeError: no implicit conversion of ERB into String
/Users/pRdm/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/psych.rb:377:in `parse'
/Users/pRdm/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/psych.rb:377:in `parse_stream'
/Users/pRdm/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/psych.rb:325:in `parse'
/Users/pRdm/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/psych.rb:252:in `load'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/cap-ec2-1.1.2/lib/cap-ec2/utils.rb:59:in `load_config'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/cap-ec2-1.1.2/lib/cap-ec2/ec2-handler.rb:8:in `initialize'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/cap-ec2-1.1.2/lib/cap-ec2/capistrano.rb:18:in `new'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/cap-ec2-1.1.2/lib/cap-ec2/capistrano.rb:18:in `ec2_handler'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/cap-ec2-1.1.2/lib/cap-ec2/capistrano.rb:22:in `ec2_role'
config/deploy/production.rb:7:in `block in <top (required)>'
config/deploy/production.rb:6:in `each'
config/deploy/production.rb:6:in `<top (required)>'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/capistrano-3.10.2/lib/capistrano/setup.rb:28:in `load'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/capistrano-3.10.2/lib/capistrano/setup.rb:28:in `block (3 levels) in <top (required)>'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/capistrano-3.10.2/lib/capistrano/configuration/variables.rb:32:in `untrusted!'
/Users/pRdm/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/delegate.rb:83:in `method_missing'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/capistrano-3.10.2/lib/capistrano/setup.rb:26:in `block (2 levels) in <top (required)>'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/task.rb:271:in `block in execute'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/task.rb:271:in `each'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/task.rb:271:in `execute'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/task.rb:213:in `block in invoke_with_call_chain'
/Users/pRdm/.rvm/rubies/ruby-2.4.1/lib/ruby/2.4.0/monitor.rb:214:in `mon_synchronize'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/task.rb:193:in `invoke_with_call_chain'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/task.rb:182:in `invoke'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:160:in `invoke_task'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:116:in `block (2 levels) in top_level'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:116:in `each'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:116:in `block in top_level'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:125:in `run_with_threads'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:110:in `top_level'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:83:in `block in run'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:186:in `standard_exception_handling'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/rake-12.3.1/lib/rake/application.rb:80:in `run'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/capistrano-3.10.2/lib/capistrano/application.rb:14:in `run'
/Users/pRdm/.rvm/gems/ruby-2.4.1/gems/capistrano-3.10.2/bin/cap:3:in `<top (required)>'
/Users/pRdm/.rvm/gems/ruby-2.4.1/bin/cap:23:in `load'
/Users/pRdm/.rvm/gems/ruby-2.4.1/bin/cap:23:in `<main>'
/Users/pRdm/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `eval'
/Users/pRdm/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `<main>'

Digging into it a little bit seems to reveal that this line from CapEC2::Utils produced the error:

config = YAML.load(ERB.new(File.read(fetch(:ec2_config))))

This fixes the issue for me:

config = YAML.load(ERB.new(File.read(fetch(:ec2_config))).result)

I think this is coming from YAML.load trying to call #to_s on the ERB instance. Possibly an update within YAML broke this code?

[comp615]

Also seeing this error