SSHKit :: Runner :: ExecuteError：在主机xx.xx.xx.xx上执行时发生异常：由远程主机关闭的连接

Question

我们正在为我们的rails应用程序实现capistrano（Rails 5 + aws + ruby​​ 2.3.1 + capistrano 3）。

deploy.rb

server 'my aws server ip', port: 3000, roles: [:web, :app, :db], primary: true
set :repo_url, 'git@github.com:myusername/myrepo.git'
set :application, 'myapp'
set :user, 'ubuntu'
set :puma_threads, [4, 16]
set :puma_workers, 0
set :pty, true
set :use_sudo, false
set :stage, :production
set :deploy_via, :remote_cache
set :deploy_to, "/home/#{fetch(:user)}/apps/#{fetch(:application)}"
set :puma_bind, "unix://#{shared_path}/tmp/sockets/#        {fetch(:application)}-puma.sock"
set :puma_state, "#{shared_path}/tmp/pids/puma.state"
set :puma_pid, "#{shared_path}/tmp/pids/puma.pid"
set :puma_access_log, "#{release_path}/log/puma.error.log"
set :puma_error_log, "#{release_path}/log/puma.access.log"
set :ssh_options, { forward_agent: true, user: fetch(:user), keys:     %w(~/.ssh/id_rsa) }
set :puma_preload_app, true
set :puma_worker_timeout, nil
set :puma_init_active_record, true # Change to false when not using     ActiveRecord
namespace :puma do
desc 'Create Directories for Puma Pids and Socket'
task :make_dirs do
on roles(:app) do
execute "mkdir #{shared_path}/tmp/sockets -p"
execute "mkdir #{shared_path}/tmp/pids -p"
end
end
` before :start, :make_dirs` `end` `namespace :deploy do` ` desc "Make         sure local git is in sync with remote."` ` task :check_revision do` ` on     roles(:app) do` ` unless `git rev-parse HEAD` == `git rev-parse     origin/master
puts "WARNING: HEAD is not the same as origin/master"
puts "Rungit pushto sync changes."
exit
end
end
end
desc 'Initial Deploy'
task :initial do
on roles(:app) do
before 'deploy:restart', 'puma:start'
invoke 'deploy'
end
end
desc 'Restart application'
task :restart do
on roles(:app), in: :sequence, wait: 5 do
invoke 'puma:restart'
end
end
before :starting, :check_revision
after :finishing, :compile_assets
after :finishing, :cleanup
after :finishing, :restart
end

部署/ production.rb

set :user, "ubuntu"
server "my aws ip", port: 3000, roles: [:app, :web, :db], :primary => true
set :ssh_options, { forward_agent: true, user: fetch(:user), keys:     %w(~/.ssh/id_rsa) }

的Gemfile

gem 'capistrano', require: false
gem 'capistrano-rvm', require: false
gem 'capistrano-rails', require: false
gem 'capistrano-bundler', require: false
gem 'capistrano3-puma', require: false

执行以下命令时，

cap production deploy

我收到以下错误：

SSHKit::Runner::ExecuteError: Exception while executing on host xx.xx.xx.xx: connection closed by remote host

请帮我摆脱这个。

Answer 1

默认ssh端口为22，您确定3000吗？

server "my aws ip", port: 3000
                    ^^^^^^^^^^