Capistrano cannot deploy code, because Net::SSH::AuthenticationFailed: Authentication failed

ruby-on-rails ruby amazon-web-services ssh capistrano

The problem is the gem

net-ssh

The last version (2.8.0) causes this issue. The solution is to uninstall it:

gem uninstall net-ssh -v 2.8.0

and then to add to the Gemfile its previous version:

gem "net-ssh", "~> 2.7.0"

That's it.

ruby-on-rails ruby amazon-web-services ssh capistrano

I had the same problem while deploying using capistrano Net::SSH::AuthenticationFailed: Authentication failed for user deployer@IP

ssh-copy-id deployer@ip

This will add your keys to server and you can login without password.

ruby-on-rails ruby amazon-web-services ssh capistrano

After uninstall net-ssh 2.8.0, remove on gemfile.lock, too. It will continuously okay.

CodeHunter