Capistrano asks for password when deploying, despite SSH keys

Question

My ssh keys are definitely set up correctly, as I'm never prompted for the password when using ssh. But capistrano still asks for a password when deploying with cap deploy. It doesn't ask for the password when I setup with cap deploy:setup though, strangely enough. It would make the deployment cycle so much smoother without a password prompt.

Specifics: I'm deploying a Sinatra app to a Dreamhost shared account (which uses Passenger). I had followed a tutorial for doing so long back, which worked perfectly back then. Something broke since. I'm using capistrano (2.5.9) and git version 1.6.1.1. Here's my Capfile:

load 'deploy' if respond_to?(:namespace) # cap2 differentiator  set :user, 'ehsanul' set :domain, 'jellly.com'  default_run_options[:pty] = true  # the rest should be good set :repository,  "[email protected]:git/jellly.git" set :deploy_to, "/home/ehsanul/jellly.com" set :deploy_via, :remote_cache set :scm, 'git' set :branch, 'deploy' set :git_shallow_clone, 1 set :scm_verbose, true set :use_sudo, false  server domain, :app, :web  namespace :deploy do   task :migrate do     run "cd #{current_path}; /usr/bin/rake migrate environment=production"   end   task :restart do     run "touch #{current_path}/tmp/restart.txt"   end end  after "deploy", "deploy:migrate" 

And here's the output of what happens when I cap deploy, upto the password prompt:

$ cap deploy   * executing `deploy'   * executing `deploy:update'  ** transaction: start   * executing `deploy:update_code'     updating the cached checkout on all servers     executing locally: "git ls-remote [email protected]:git/jellly.git deploy" /usr/local/bin/git   * executing "if [ -d /home/ehsanul/jellly.com/shared/cached-copy ]; then cd /home/ehsanul/jellly.com/shared/cached-copy && git fetch  origin && git reset  --hard ea744c77b0b939d5355ba2dc50ef1ec85f918d66 && git clean  -d -x -f; else git clone  --depth 1 [email protected]:git/jellly.git /home/ehsanul/jellly.com/shared/cached-copy && cd /home/ehsanul/jellly.com/shared/cached-copy && git checkout  -b deploy ea744c77b0b939d5355ba2dc50ef1ec85f918d66; fi"     servers: ["jellly.com"]     [jellly.com] executing command  ** [jellly.com :: out] [email protected]'s password: Password:  ** [jellly.com :: out]  ** [jellly.com :: out] remote: Counting objects: 7, done. remote: Compressing objects: 100% (4/4), done. 

What could be broken?

Answer 1

Executing ssh-add ~/.ssh/id_rsa in my local machine fixed the issue for me. It seemed that the ssh command line tool wasn't detecting my identity when called with Capistrano.