Capistrano deployment error in rails application

Question

I am getting this error on doing cap production deploy in my rails application my net-ssh version is 5.0.2 can anyone please help me how i can fix this. My server is Puma

#<Thread:0x00007fe400cfb5e8@/Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/runners/parallel.rb:10 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
    26: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
    25: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/abstract.rb:29:in `run'
    24: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/abstract.rb:29:in `instance_exec'
    23: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/capistrano-rvm-0.1.2/lib/capistrano/tasks/rvm.rake:9:in `block (3 levels) in <top (required)>'
    22: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/abstract.rb:64:in `capture'
    21: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/abstract.rb:145:in `create_command_and_execute'
    20: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/abstract.rb:145:in `tap'
    19: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/abstract.rb:145:in `block in create_command_and_execute'
    18: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/netssh.rb:129:in `execute_command'
    17: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/netssh.rb:176:in `with_ssh'
    16: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/connection_pool.rb:59:in `with'
    15: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/sshkit-1.17.0/lib/sshkit/backends/connection_pool.rb:59:in `call'
    14: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh.rb:246:in `start'
    13: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/session.rb:71:in `authenticate'
    12: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/session.rb:71:in `each'
    11: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/session.rb:85:in `block in authenticate'
    10: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/methods/publickey.rb:19:in `authenticate'
     9: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/key_manager.rb:119:in `each_identity'
     8: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/key_manager.rb:119:in `each'
     7: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/key_manager.rb:122:in `block in each_identity'
     6: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/methods/publickey.rb:20:in `block in authenticate'
     5: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/methods/publickey.rb:62:in `authenticate_with'
     4: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/key_manager.rb:142:in `sign'
     3: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/key_factory.rb:44:in `load_private_key'
     2: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/key_factory.rb:53:in `load_data_private_key'
     1: from /Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/key_factory.rb:113:in `classify_key'
/Users/synup/.rvm/gems/ruby-2.5.1/gems/net-ssh-5.0.2/lib/net/ssh/authentication/ed25519_loader.rb:21:in `raiseUnlessLoaded': OpenSSH keys only supported if ED25519 is available (NotImplementedError)
net-ssh requires the following gems for ed25519 support:
 * ed25519 (>= 1.2, < 2.0)
 * bcrypt_pbkdf (>= 1.0, < 2.0)
cap aborted!
NotImplementedError: OpenSSH keys only supported if ED25519 is available
net-ssh requires the following gems for ed25519 support:
 * ed25519 (>= 1.2, < 2.0)
 * bcrypt_pbkdf (>= 1.0, < 2.0)
See https://github.com/net-ssh/net-ssh/issues/565 for more information
Gem::LoadError : "ed25519 is not part of the bundle. Add it to your Gemfile."

Answer 1

For me just execute on terminal

ssh-add

And this worked.

Answer 2

至少在 Mac OS 上，如果您在系统启动后不 ssh-add [yourkey]，您将收到此错误。

Answer 3

Although you can get around this error by adding the gems suggested by the other answers, you don't necessarily need to do it this way.

An alternative is to follow the advice given in the Known Issues for Puppet's Bolt tool, in particular this one .

Just in case that link disappears, the solution is to generate your SSH keys in the PEM format rather than OpenSSH. You can do this by adding an extra option to your ssh-keygen command:

ssh-keygen -t rsa -m PEM

I've been able to successfully use this technique to avoid adding the extra gems.

Answer 4

My working solution:

Gemfile

  gem 'net-ssh', '>= 6.0.2'
  gem 'ed25519', '>= 1.2', '< 2.0'
  gem 'bcrypt_pbkdf', '>= 1.0', '< 2.0'

Answer 5

Add those gems to your Gemfile,

gem 'rbnacl', '< 5.0', :require => false                                                                                                                                                                
gem 'rbnacl-libsodium', :require => false                                                                                                                                                               
gem 'bcrypt_pbkdf', '< 2.0', :require => false

and then run bundle install and try again.

Answer 6

这与我解决了同样的问题

ssh-agent -s  && ssh-add ~/.ssh/id_rsa

Answer 7

In a multi user developement server, without root permission, this solved:

eval `ssh-agent -s`
ssh-add

Answer 8

gem install ed25519 bcrypt_pbkdf

For new keys generated with the ed25519 algorithm, this fixes it