Rails 6 Capistrano 部署失败，即使应用程序在手动启动时工作正常

Question

所以当我将它部署到 Heroku 时，这个应用程序运行得非常好

我正在尝试将其部署到 VM（数字海洋上的普通 ubuntu 液滴）

已按预期设置 Capistrano。 我无法弄清楚这个错误可能来自哪里

SSHKit::Runner::ExecuteError: Exception while executing as deploy@<IP ADDRRESS>: rake exit status: 1
rake stdout: Nothing written
rake stderr: Nothing written

Capistrano 部署日志如下：

00:21 deploy:assets:precompile
      01 $HOME/.rbenv/bin/rbenv exec bundle exec rake assets:precompile
#<Thread:0x00007ff9d8ba40f8 /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/runners/parallel.rb:10 run> terminated with exception (report_on_exception is true):
Traceback (most recent call last):
    13: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/runners/parallel.rb:12:in `block (2 levels) in execute'
    12: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:31:in `run'
    11: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:31:in `instance_exec'
    10: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/capistrano-rails-1.6.1/lib/capistrano/tasks/assets.rake:67:in `block (4 levels) in <top (required)>'
     9: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:92:in `within'
     8: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/capistrano-rails-1.6.1/lib/capistrano/tasks/assets.rake:68:in `block (5 levels) in <top (required)>'
     7: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:100:in `with'
     6: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/capistrano-rails-1.6.1/lib/capistrano/tasks/assets.rake:69:in `block (6 levels) in <top (required)>'
     5: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:80:in `execute'
     4: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:148:in `create_command_and_execute'
     3: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:148:in `tap'
     2: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/abstract.rb:148:in `block in create_command_and_execute'
     1: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/backends/netssh.rb:170:in `execute_command'
/Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/command.rb:97:in `exit_status=': rake exit status: 1 (SSHKit::Command::Failed)
rake stdout: Nothing written
rake stderr: Nothing written
    1: from /Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/runners/parallel.rb:11:in `block (2 levels) in execute'
/Users/josh.kurien/.rbenv/versions/2.7.1/lib/ruby/gems/2.7.0/gems/sshkit-1.21.1/lib/sshkit/runners/parallel.rb:15:in `rescue in block (2 levels) in execute': Exception while executing as deploy@<IP ADDRRESS>: rake exit status: 1 (SSHKit::Runner::ExecuteError)
rake stdout: Nothing written
rake stderr: Nothing written
(Backtrace restricted to imported tasks)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as deploy@<IP ADDRRESS>: rake exit status: 1
rake stdout: Nothing written
rake stderr: Nothing written


Caused by:
SSHKit::Command::Failed: rake exit status: 1
rake stdout: Nothing written
rake stderr: Nothing written

Tasks: TOP => deploy:assets:precompile
(See full trace by running task with --trace)
The deploy has failed with an error: Exception while executing as deploy@<IP ADDRRESS>: rake exit status: 1
rake stdout: Nothing written
rake stderr: Nothing written


** DEPLOY FAILED

尝试手动运行最后一条命令（如调试日志所示）

cd /home/deploy/mark_antony/releases/20201201034511 && ( export RBENV_ROOT="$HOME/.rbenv" RBENV_VERSION="2.7.1" RAILS_ENV="production" RAILS_GROUPS="" ; $HOME/.rbenv/bin/rbenv exec bundle exec rake assets:precompile )

这非常好用。 当我尝试在服务器上手动运行此构建时，它也可以工作

需要帮助吗？？？？

这是我的deploy.rb：

# config valid for current version and patch releases of Capistrano
lock "~> 3.14.1"

set :application, "mark_antony"
set :repo_url, "git@gitlab.com:browneinstitute/mark.git"

# Default branch is :master
set :deploy_to, "/home/deploy/#{fetch :application}"

append :linked_dirs, 'log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle', '.bundle', 'public/system', 'public/uploads'

set :keep_releases, 5

append :linked_files, "config/master.key"

旁注：我手动创建了一个新的current 符号链接到以这种方式创建的发布目录，以查看 nginx 是否能够为网页提供服务。 它能够

Answer 1

所以我认为这总是在预编译资产时失败，答案在这里： https://stackoverflow.com/a/61210930/2358326

帮助解决了这个问题，除了我必须为路径添加一个稍微不同的值

# add in deploy.rb

set :default_env, {
    PATH: '$HOME/.nvm/versions/node/v14.15.1/bin/:$PATH',
    NODE_ENVIRONMENT: 'production'
}

这是因为在 VM 上运行 $ which yarn 会返回以下内容：

/home/deploy/.nvm/versions/node/v14.15.1/bin/yarn

Answer 2

也许你需要重新添加你的 ssh，试试这个 ssh-add，在您的控制台中尝试再次部署。

Answer 3

问题似乎是您在deploy.rb 中缺少一些关键配置，否则您将无法连接到您的 Droplet。

# config valid for current version and patch releases of Capistrano
lock "~> 3.14.1"

server 'YOUR_DROPLET_IP',
roles: [:web, :app, :db],

set :user,  'deploy'
set :application, "mark_antony"
set :repo_url, "git@gitlab.com:browneinstitute/mark.git"

# Default branch is :master
set :deploy_to, "/home/deploy/#{fetch :application}"

append :linked_dirs, 'log', 'tmp/pids', 'tmp/cache', 'tmp/sockets', 'vendor/bundle', '.bundle', 'public/system', 'public/uploads'

set :keep_releases, 5
# This might not be needed. If needed make sure to provide the correct path to your ssh key
set :ssh_options,     {
                        forward_agent: true,
                        user: fetch(:user),
                        keys: %w(~/.ssh/id_rsa)
                      } 

append :linked_files, "config/master.key"