Ssh authentication error while deploying using capistrano

Question

I am trying to deploy my rails application (Ruby 2.1.2 and Rails 4.1.4) through capistrano from mac. I have ssh keys set up on server. But i keep getting authentication error whenever i try to deploy. The error is:

SSHKit::Runner::ExecuteError: Exception while executing on host xxx.xxx: Authentication failed for user [email protected]

followed by:

Net::SSH::AuthenticationFailed: Authentication failed for user [email protected]

This is my staging.rb:

server "xxx.xx.xxx", user: "deploy", roles: %w{web app db}
set :ssh_options, {
  user: "root",
  forward_agent: false,
  keys: '~/.ssh/id_rsa',
  auth_methods: %w(publickey password)
}
set :branch, "master"
set :rails_env,   "staging"

I am able to login to server via terminal using ssh [email protected] but cannot login with capistrano. Any help or advice will be appericiated.

Authentication is failed fo user [email protected], not [email protected]. Correct first row of the staging.rb file. — Mareq
– Mareq, Commented Nov 23, 2015 at 19:37

Vishal Taj PM · Accepted Answer · 2019-02-07 07:34:36Z

1

At first. You use two different users in one config. Choice one and edit your staging.rb

Also I am not sure that using public key is a good way. Try to add private key for user Deploy. Then if you able to login as deploy

ssh -i id_rsa [email protected]

try to update gem net-ssh to version 3.0.1. Then you can write your config like

set :ssh_options, {
  user: "deploy",      
  keys: ["~/.ssh/id_rsa"]      
}

edited Feb 7, 2019 at 7:34

Vishal Taj PM

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answered Nov 26, 2015 at 10:12

Anton Ryzhkov

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Comments

7urkm3n · Accepted Answer · 2018-12-27 18:57:08Z

0

I have faced the same issue for my application https://www.wiki11.com.

Those who are getting error

Net::SSH::AuthenticationFailed: Authentication failed for user [email protected]

Here is the solution,

First of all you need to ssh to your server and run

eval `ssh-agent`

and then

ssh-add ~/.ssh/id_rsa

and now change

set :ssh_options, { forward_agent: true, user: fetch(:user), keys: %w(~/.ssh/id_rsa.pub) } 
#...

to

set :ssh_options, { forward_agent: true, user: fetch(:user), keys: %w(~/.ssh/id_rsa) }
#...

I just removed pub from id_rsa.pub.

And then run

cap production deploy:initial

It should work now.

edited Dec 27, 2018 at 18:57

7urkm3n

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answered Feb 10, 2018 at 14:06

Neeraj Kumar

7,8793 gold badges34 silver badges24 bronze badges

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