capistrano版本3升级令人困惑

Question

我一直在努力将capistrano v2升级到v3 5天，我正在尝试从本地机器部署到ec2实例开发环境。我不能再走下去了。我的踪迹在这里

$cap开发部署:检查

INFO [429e612c] Running /usr/bin/env mkdir -p /tmp/my_app_name/ on 70.22.320.14
DEBUG [429e612c] Command: ( RVM_BIN_PATH=~/.rvm/bin /usr/bin/env mkdir -p /tmp/my_app_name/ )
 INFO [429e612c] Finished in 6.208 seconds with exit status 0 (successful).
DEBUG Uploading /tmp/my_app_name/git-ssh.sh 0.0%
 INFO Uploading /tmp/my_app_name/git-ssh.sh 100.0%
 INFO [c3a41f2e] Running /usr/bin/env chmod +x /tmp/my_app_name/git-ssh.sh on 70.22.320.14
DEBUG [c3a41f2e] Command: ( RVM_BIN_PATH=~/.rvm/bin /usr/bin/env chmod +x /tmp/my_app_name/git-ssh.sh )
 INFO [c3a41f2e] Finished in 0.720 seconds with exit status 0 (successful).
DEBUG [c5891dcc] Running /usr/bin/env git ls-remote git@github.com:example/webapp.git
 on 70.22.320.14
DEBUG [c5891dcc] Command: ( RVM_BIN_PATH=~/.rvm/bin GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/my_app_name/git-ssh.sh /usr/bin/env git ls-remote  git@github.com:example/webapp.git
DEBUG [c5891dcc]    /usr/bin/env: 
DEBUG [c5891dcc]    git
DEBUG [c5891dcc]    : No such file or directory
DEBUG [c5891dcc]    
DEBUG [c5891dcc] Finished in 0.664 seconds with exit status 127 (failed).

config/deploy.rb

set :application, 'my_app_name'
set :repo_url, '.'
set :branch, 'master'
set :scm, :git
set :deploy_to, "/home/ec2-user/capistrano-3/}"
set :ssh_options, {:keys => ["#{ENV['HOME']}/.ssh/my_pem.pem"], :forward_agent =>true}
set :keep_releases, 5
set :rvm_type, :user
set :rvm_ruby_version, '2.0.0-p353'
set :default_env, { rvm_bin_path: '~/.rvm/bin' }
set :whenever_command, "bundle exec whenever"
set :git_shallow_clone, 1
set :deploy_via, :copy

set :log_level, :debug
set :pty, true
set :linked_files, %w{config/database.yml}


SSHKit.config.command_map[:rake]  = "bundle exec rake"
SSHKit.config.command_map[:rails] = "bundle exec rails"

namespace :deploy do

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

  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

  after :finishing, 'deploy:cleanup'

end

config/deploy/development.rb

set :stage, :development


role :app, %w{ec2-user@70.22.320.14}
role :web, %w{ec2-user@70.22.320.14}
role :db,  %w{ec2-user@70.22.320.14}
role :all,  %w{ec2-user@70.22.320.14}

server 'ec2-user@70.22.320.14', user: 'ec2-user', roles: %w{web app}

Capfile

require 'capistrano/setup'
require 'capistrano/deploy'
require 'capistrano/bundler'
require 'capistrano/rails/assets'
require 'capistrano/rails/migrations'

Dir.glob('lib/capistrano/tasks/*.cap').each { |r| import r }

我的问题：

1. 我的git路径不被接受
2. ssh关键问题

git和ssh键与capistrano 2一起工作，与我部署的应用程序相同。升级到capistrano v3会带来更大的头痛。我能连续做些什么。请引导我通过正确的步骤。

Answer 1

我花了一些时间与capistrano3做斗争，下面是一些提示，它们可能是有用的：

1)官方手册capistranorb.com。有一些关于你应该连续做什么的建议。关于认证和授权的章节也很有帮助。有一些关于在工作站和服务器上配置ssh的提示。我遵循了这个指南，它对我有帮助。通过从头开始遵循本指南来构建您的deploy.rb。

还有有用的指南：guide1，guide2

2)这是我的Capfile。请注意rvm1 1/capstrano3和capstrano3/unicorn。非常有用的宝石。

    require 'capistrano/setup'

    require 'capistrano/deploy'
    require 'capistrano3/unicorn'
    require 'rvm1/capistrano3'
    require 'capistrano/rvm'
    require 'capistrano/bundler'
    require 'capistrano/rails/assets'
    require 'capistrano/rails/migrations'

3)您可以尝试以下命令：

ssh ubuntu@ec2....amazonaws.com -v 

或

ssh git@github.com -v   # from your EC2 server

若要了解在尝试连接到EC2服务器时发生了什么，请执行以下操作。可能是佩姆钥匙的问题？创建.pub键并尝试使用它。不要忘记将它添加到~/ssh/authorized_keys中

cat id_rsa_aws.pub | ssh ubuntu@....amazonaws.com "cat >>   
/home/ubuntu/.ssh/authorized_keys"

配置ssh-代理，不要忘记添加~/..bash_profile，如下所示：

eval $(ssh-agent)
ssh-add ~/.ssh/id_rsa_deploy_github
ssh-add ~/.ssh/id_rsa_digital_ocean

如果你对ssh有问题，也许你应该看看这个ssh-指南。

你也可以看我的应用程序，在那里我正在使用capistrano3。也许你能为你找到一些东西：#项目

附注：在某些VPS git上没有安装，所以最好检查：

deployer@ec2***.amazonaws.com$ which git

如未找到：

deployer@ec2***.amazonaws.com$ sudo apt-get install git