Reputation: 393

Capistrano deployment error in rails application

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."

Upvotes: 26

Answers (10)

Bruno Cruz

Reputation: 83

I'm using Macbook M2 and while I tried every alternative suggested in the other answers, I couldn't fix it. The error persisted and changed to a slightly different one: now the problem was incompatible architecture for bcrypt_pbkdf:

The deploy has failed with an error: 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
LoadError : "dlopen(/Users/*/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bcrypt_pbkdf-1.1.0/lib/bcrypt_pbkdf_ext.bundle, 0x0009): tried: '/Users/*/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bcrypt_pbkdf-1.1.0/lib/bcrypt_pbkdf_ext.bundle' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/Users/*/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bcrypt_pbkdf-1.1.0/lib/bcrypt_pbkdf_ext.bundle' (no such file), '/Users/*/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bcrypt_pbkdf-1.1.0/lib/bcrypt_pbkdf_ext.bundle' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64')) - /Users/brunocruz/.rbenv/versions/3.2.2/lib/ruby/gems/3.2.0/gems/bcrypt_pbkdf-1.1.0/lib/bcrypt_pbkdf_ext.bundle"

I solved it by converting the new OpenSSH private key to the old PEM format:

ssh-keygen -p -m PEM -f ~/.ssh/id_rsa

Now Capistrano can SSH into my server.

Upvotes: 1

lugolabs

Reputation: 589

Updating net-ssh worked for me:

bundle update net-ssh

Upvotes: 0

Hardey Lim

Reputation: 21

gem install ed25519 bcrypt_pbkdf

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

Upvotes: 2

Gianpaolo Scrigna

Reputation: 842

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

eval `ssh-agent -s`
ssh-add

Upvotes: 1

Astm

Reputation: 1710

This solved the same issue with me

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

Upvotes: 4

Juarez Lustosa

Reputation: 821

For me just execute on terminal

ssh-add

And this worked.

Upvotes: 61

Steve Hill

Reputation: 2321

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.

Upvotes: 7

Aaron Castro

Reputation: 399

My working solution:

Gemfile

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

Upvotes: 7

giapnh

Reputation: 3258

On Mac OS at least, you'll get this error if you don't ssh-add [yourkey] after system startup.

Upvotes: 13

Daniel

Reputation: 899

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.

Upvotes: 2

Capistrano deployment error in rails application

Answers (10)

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