Rails 4 + Capistrano 3 : fatal: Could not read from remote repository while deploying

Question

I am getting following error while deploying Rails 4 application using Capistrano 3

INFO [87512eb8] Running /usr/bin/env chmod +x /tmp/magnificent/git-ssh.sh as [email protected]
DEBUG [87512eb8] Command: /usr/bin/env chmod +x /tmp/magnificent/git-ssh.sh
INFO [87512eb8] Finished in 0.444 seconds with exit status 0 (successful).
INFO [1ec94dd1] Running /usr/bin/env git ls-remote --heads [email protected]:BoTreeConsultingTeam/magnificent.git as [email protected]
DEBUG [1ec94dd1] Command: ( GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/magnificent/git-ssh.sh /usr/bin/env git ls-remote --heads [email protected]:BoTreeConsultingTeam/magnificent.git )
DEBUG [1ec94dd1]    ERROR: Repository not found.
DEBUG [1ec94dd1]    fatal: Could not read from remote repository.
DEBUG [1ec94dd1]    
DEBUG [1ec94dd1]    Please make sure you have the correct access rights
DEBUG [1ec94dd1]    and the repository exists.

Here is capistrano configuration.

config/deploy.rb

# config valid only for current version of Capistrano
lock '3.4.0'

set :application, 'magnificent'
set :repo_url, '[email protected]:BoTreeConsultingTeam/magnificent.git'
set :deploy_to, '/home/deploy/magnificent'

set :linked_files, %w{config/database.yml config/secrets.yml}
set :linked_dirs, %w{bin log tmp/pids tmp/cache tmp/sockets vendor/bundle public/system}
set :branch, 'develop' #set/ :branch,`git rev-parse --abbrev-ref HEAD`.chomp
set :ssh_options, { forward_agent: true }

namespace :deploy do

  desc 'Restart application'
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      execute :touch, release_path.join('tmp/restart.txt')
    end
  end

  after :publishing, 'deploy:restart'
  after :finishing, 'deploy:cleanup'
end

namespace :deploy do

  after :restart, :clear_cache do
    on roles(:web), in: :groups, limit: 3, wait: 10 do
      # Here we can do anything such as:
      # within release_path do
      #   execute :rake, 'cache:clear'
      # end
    end
  end

end

production.rb

set :stage, :production
server 'xx.xx.xx.xx', user: 'deploy', roles: %w{web app}

Capfile

require 'capistrano/setup'
require 'capistrano/deploy'
require 'capistrano/rvm'
require 'capistrano/bundler'
require 'capistrano/rails'
require 'capistrano/rails/assets'
require 'capistrano/rails/migrations'
Dir.glob('lib/capistrano/tasks/*.rake').each { |r| import r }
set :rvm_type, :user
set :rvm_ruby_version, '2.2.2'

I also copied /home/deploy/.ssh/id_rsa.pub of remote server to github deploy keys.

UPDATE I confirm that I am able to access remote repo and also GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/magnificent/git-ssh.sh /usr/bin/env git ls-remote --heads [email protected]:BoTreeConsultingTeam/magnificent.git command works on remote server.

Answer 1

Current Solution

Lately I use different solution. Before cap production deploy I run following commands.

1. eval "$(ssh-agent -s)"
2. ssh-add ~/.ssh/id_rsa

Previous Solution

I am able to fix this issue by replacing

set :repo_url, '[email protected]:BoTreeConsultingTeam/magnificent.git'

with

set :repo_url, 'https://my_github_username:[email protected]/BoTreeConsultingTeam/magnificent'

Note if your password contains special characters then thet should be url encoded. You can quickly encode using URI::encode in irb.

With other deployments using Capistrano 2, I never need to supply github credentials.

Can anybody please tell why should I have to specify git username/password in repo_url?

There is one more solution in the upcase forum post which also worked.