Capistrano Install deploy keys

capistrano-bitbucket-tasks.rb

ask :bitbucket_username, nil
ask :bitbucket_password, nil
set :bitbucket_deploy_key_path, '/home/ubuntu/.ssh/id_rsa.pub'
set :bitbucket_deploy_key_label, 'capistrano-bitbucket'

desc 'Generate SSH key pair'
task :generate_ssh_keys do
  on roles(:all) do
    execute '[ -f ~/.ssh/id_rsa ] || ssh-keygen -b 2048 -t rsa -f ~/.ssh/id_rsa -q -N ""'
  end
end
before :starting, :generate_ssh_keys

desc 'Install deploy keys'
task :install_deploy_keys do
  on roles(:all) do
    unless test("[ -f ~/.bitbucket-deploy-key-label ]")
      user, pass = fetch(:bitbucket_username), fetch(:bitbucket_password)
      label = fetch(:bitbucket_deploy_key_label)
        Net::HTTP.start('bitbucket.org', use_ssl: true) do |http|
        index = '/api/1.0/repositories/brandedcrate/rxaid/deploy-keys/'
        request = Net::HTTP::Get.new index
        request.basic_auth user, pass
        response = JSON.parse(http.request(request).body)
          if response.none? { |k| k['label'] == label }
          request = Net::HTTP::Post.new(index, 'Content-Type' => 'application/json')
          request.basic_auth user, pass
          request.body = JSON.dump(
            label: label,
            key: capture("cat #{fetch(:bitbucket_deploy_key_path)}"))
          response = http.request request
          execute("echo #{label} > ~/.bitbucket-deploy-key-label")
        end
      end
    end
  end
end
before :starting, :install_deploy_keys