Capistrano V3 在 database.yml 上失​​败

Question

我正在使用最新版本的 Capistrano 和我的 Rails 4 应用程序。运行cap dpeloy 时。我得到了很多输出，包括这个失败：

DEBUG [04b6e226] Running /usr/bin/env [ -f /var/www/skateboxes/releases/20131022135522/config/database.yml ] on 162.243.33.179
DEBUG [04b6e226] Command: [ -f /var/www/skateboxes/releases/20131022135522/config/database.yml ]
DEBUG [04b6e226] Finished in 0.280 seconds with exit status 1 (failed).

我如何弄清楚这里发生了什么？

更新 #1

我应该说我已经 gitignored config/database.yml （正如 capistrano 文档所建议的那样）。然后我将以下内容添加到我的config/deploy.rb

set :linked_files, %w{config/database.yml}

然后我在我的 VPS 上创建了一个文件 /var/www/skateboxes/shared/config/database.yml。

我不了解linked_files 的工作原理吗？

更新 #2

事实证明该文件实际上是从shared/conf/database.yml 链接到current/config/database.yml 所以现在我很困惑为什么它说failed

更新 #3

这是我的部署的全部输出

DEBUG Uploading /tmp/git-ssh.sh 0.0%
 INFO Uploading /tmp/git-ssh.sh 100.0%
 INFO [37fffef8] Running /usr/bin/env chmod +x /tmp/git-ssh.sh on 162.243.33.179
DEBUG [37fffef8] Command: ( RAILS_ENV=production /usr/bin/env chmod +x /tmp/git-ssh.sh )
 INFO [37fffef8] Finished in 0.282 seconds with exit status 0 (successful).
DEBUG [d8542e52] Running /usr/bin/env git ls-remote git@github.com:kyledecot/skateboxes.git on 162.243.33.179
DEBUG [d8542e52] Command: ( RAILS_ENV=production GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/git-ssh.sh /usr/bin/env git ls-remote git@github.com:kyledecot/skateboxes.git )
DEBUG [d8542e52] Finished in 1.448 seconds with exit status 0 (successful).
DEBUG [d8542e52]    e0f96188b9567a84048a0e1238f219abc6351607    HEAD
DEBUG [d8542e52]    e0f96188b9567a84048a0e1238f219abc6351607    refs/heads/master
DEBUG [d8542e52] Finished in 1.448 seconds with exit status 0 (successful).
 INFO [5a13328b] Running /usr/bin/env mkdir -pv /var/www/skateboxes/shared /var/www/skateboxes/releases on 162.243.33.179
DEBUG [5a13328b] Command: ( RAILS_ENV=production /usr/bin/env mkdir -pv /var/www/skateboxes/shared /var/www/skateboxes/releases )
 INFO [5a13328b] Finished in 0.719 seconds with exit status 0 (successful).
 INFO [293e065b] Running /usr/bin/env mkdir -pv /var/www/skateboxes/shared/config on 162.243.33.179
DEBUG [293e065b] Command: ( RAILS_ENV=production /usr/bin/env mkdir -pv /var/www/skateboxes/shared/config )
 INFO [293e065b] Finished in 0.780 seconds with exit status 0 (successful).
DEBUG [4eb81576] Running /usr/bin/env [ -f /var/www/skateboxes/shared/config/database.yml ] on 162.243.33.179
DEBUG [4eb81576] Command: [ -f /var/www/skateboxes/shared/config/database.yml ]
DEBUG [4eb81576] Finished in 0.744 seconds with exit status 0 (successful).
DEBUG [89a9e1fa] Running /usr/bin/env [ -f /var/www/skateboxes/repo/HEAD ] on 162.243.33.179
DEBUG [89a9e1fa] Command: [ -f /var/www/skateboxes/repo/HEAD ]
DEBUG [89a9e1fa] Finished in 0.734 seconds with exit status 0 (successful).
 INFO The repository mirror is at /var/www/skateboxes/repo
DEBUG [3cc4d694] Running /usr/bin/env if test ! -d /var/www/skateboxes/repo; then echo "Directory does not exist '/var/www/skateboxes/repo'" 1>&2; false; fi on 162.243.33.179
DEBUG [3cc4d694] Command: if test ! -d /var/www/skateboxes/repo; then echo "Directory does not exist '/var/www/skateboxes/repo'" 1>&2; false; fi
DEBUG [3cc4d694] Finished in 0.735 seconds with exit status 0 (successful).
 INFO [1cb24a84] Running /usr/bin/env git remote update on 162.243.33.179
DEBUG [1cb24a84] Command: cd /var/www/skateboxes/repo && ( RAILS_ENV=production /usr/bin/env git remote update )
DEBUG [1cb24a84]    Fetching origin
DEBUG [1cb24a84]    remote: Counting objects: 5, done.
remote: Compressing objects: 100% (1/1), done.
DEBUG [1cb24a84]    remote: Total 3 (delta 2), reused 3 (delta 2)
DEBUG [1cb24a84]    Unpacking objects:  33% (1/3)
DEBUG [1cb24a84]    Unpacking objects:  66% (2/3)
Unpacking objects: 100% (3/3), done.jects: 100% (3/3)
DEBUG [1cb24a84]    From github.com:kyledecot/skateboxes
DEBUG [1cb24a84]       de7f4a1..e0f9618  master     -> master
 INFO [1cb24a84] Finished in 0.817 seconds with exit status 0 (successful).
DEBUG [edd6c793] Running /usr/bin/env if test ! -d /var/www/skateboxes/repo; then echo "Directory does not exist '/var/www/skateboxes/repo'" 1>&2; false; fi on 162.243.33.179
DEBUG [edd6c793] Command: if test ! -d /var/www/skateboxes/repo; then echo "Directory does not exist '/var/www/skateboxes/repo'" 1>&2; false; fi
DEBUG [edd6c793] Finished in 0.732 seconds with exit status 0 (successful).
 INFO [009b81fe] Running /usr/bin/env mkdir -p /var/www/skateboxes/releases/20131022145520 on 162.243.33.179
DEBUG [009b81fe] Command: cd /var/www/skateboxes/repo && ( RAILS_ENV=production GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/git-ssh.sh /usr/bin/env mkdir -p /var/www/skateboxes/releases/20131022145520 )
 INFO [009b81fe] Finished in 0.317 seconds with exit status 0 (successful).
 INFO [e9554374] Running /usr/bin/env git archive master | tar -x -C /var/www/skateboxes/releases/20131022145520 on 162.243.33.179
DEBUG [e9554374] Command: cd /var/www/skateboxes/repo && ( RAILS_ENV=production GIT_ASKPASS=/bin/echo GIT_SSH=/tmp/git-ssh.sh /usr/bin/env git archive master | tar -x -C /var/www/skateboxes/releases/20131022145520 )
 INFO [e9554374] Finished in 0.356 seconds with exit status 0 (successful).
 INFO [165a7c40] Running /usr/bin/env mkdir -pv /var/www/skateboxes/releases/20131022145520/config on 162.243.33.179
DEBUG [165a7c40] Command: ( RAILS_ENV=production /usr/bin/env mkdir -pv /var/www/skateboxes/releases/20131022145520/config )
 INFO [165a7c40] Finished in 1.174 seconds with exit status 0 (successful).
DEBUG [c2f7de66] Running /usr/bin/env [ -L /var/www/skateboxes/releases/20131022145520/config/database.yml ] on 162.243.33.179
DEBUG [c2f7de66] Command: [ -L /var/www/skateboxes/releases/20131022145520/config/database.yml ]
DEBUG [c2f7de66] Finished in 0.572 seconds with exit status 1 (failed).
DEBUG [09de2f2c] Running /usr/bin/env [ -f /var/www/skateboxes/releases/20131022145520/config/database.yml ] on 162.243.33.179
DEBUG [09de2f2c] Command: [ -f /var/www/skateboxes/releases/20131022145520/config/database.yml ]
DEBUG [09de2f2c] Finished in 0.304 seconds with exit status 1 (failed).
 INFO [05570e6e] Running /usr/bin/env ln -s /var/www/skateboxes/shared/config/database.yml /var/www/skateboxes/releases/20131022145520/config/database.yml on 162.243.33.179
DEBUG [05570e6e] Command: ( RAILS_ENV=production /usr/bin/env ln -s /var/www/skateboxes/shared/config/database.yml /var/www/skateboxes/releases/20131022145520/config/database.yml )
 INFO [05570e6e] Finished in 0.541 seconds with exit status 0 (successful).
 INFO [8499b753] Running /usr/bin/env rm -rf /var/www/skateboxes/current on 162.243.33.179
DEBUG [8499b753] Command: ( RAILS_ENV=production /usr/bin/env rm -rf /var/www/skateboxes/current )
 INFO [8499b753] Finished in 0.762 seconds with exit status 0 (successful).
 INFO [bddc6793] Running /usr/bin/env ln -s /var/www/skateboxes/releases/20131022145520 /var/www/skateboxes/current on 162.243.33.179
DEBUG [bddc6793] Command: ( RAILS_ENV=production /usr/bin/env ln -s /var/www/skateboxes/releases/20131022145520 /var/www/skateboxes/current )
 INFO [bddc6793] Finished in 0.289 seconds with exit status 0 (successful).
DEBUG [38a6b176] Running /usr/bin/env ls -x /var/www/skateboxes/releases on 162.243.33.179
DEBUG [38a6b176] Command: ( RAILS_ENV=production /usr/bin/env ls -x /var/www/skateboxes/releases )
DEBUG [38a6b176] Finished in 0.741 seconds with exit status 0 (successful).
DEBUG [38a6b176]    20131022133912  20131022133939  20131022134435  20131022135522  20131022145350
DEBUG [38a6b176]    20131022145520
DEBUG [38a6b176] Finished in 0.741 seconds with exit status 0 (successful).
 INFO Keeping 5 of 6 deployed releases on 162.243.33.179
 INFO [7da6047f] Running /usr/bin/env rm -rf /var/www/skateboxes/releases/20131022133912 on 162.243.33.179
DEBUG [7da6047f] Command: ( RAILS_ENV=production /usr/bin/env rm -rf /var/www/skateboxes/releases/20131022133912 )
 INFO [7da6047f] Finished in 0.530 seconds with exit status 0 (successful).
DEBUG [7cdd5da9] Running /usr/bin/env if test ! -d /var/www/skateboxes/releases; then echo "Directory does not exist '/var/www/skateboxes/releases'" 1>&2; false; fi on 162.243.33.179
DEBUG [7cdd5da9] Command: if test ! -d /var/www/skateboxes/releases; then echo "Directory does not exist '/var/www/skateboxes/releases'" 1>&2; false; fi
DEBUG [7cdd5da9] Finished in 0.727 seconds with exit status 0 (successful).
 INFO [906548e8] Running /usr/bin/env echo "Branch master deployed as release 20131022145520 by kyledecot; " >> /var/www/skateboxes/revisions.log on 162.243.33.179
DEBUG [906548e8] Command: echo "Branch master deployed as release 20131022145520 by kyledecot; " >> /var/www/skateboxes/revisions.log
 INFO [906548e8] Finished in 0.279 seconds with exit status 0 (successful).

Answer 1

这不是失败，请参阅https://github.com/leehambley/sshkit/pull/33。

上面写着failed，因为它不是一个文件，因此测试命令（[又名man (1) test）已经退出，状态为1。

有问题的命令来自this code，转载如下：

desc 'Symlink linked files'
task :linked_files do
  next unless any? :linked_files
  on roles :app do
    execute :mkdir, '-pv', linked_file_dirs(release_path)

    fetch(:linked_files).each do |file|
      target = release_path.join(file)
      source = shared_path.join(file)
      unless test "[ -L #{target} ]"
        if test "[ -f #{target} ]"
          execute :rm, target
        end
        execute :ln, '-s', source, target
      end
    end
  end
end
desc 'Check files to be linked exist in shared'
task :linked_files do
  next unless any? :linked_files
  on roles :app do |host|
    linked_files(shared_path).each do |file|
      unless test "[ -f #{file} ]"
        error t(:linked_file_does_not_exist, file: file, host: host)
        exit 1
      end
    end
  end
end

任务名称说明了一切，真的，如果你的文件列在:linked_files变量中，那么它必须存在于shared_path中，否则会导致Capistrano在文件不存在时中止。

你还没有说这是否会导致你的部署失败，而且由于你发布的日志太少，只表明正常行为，没有人能猜到。

您似乎正在发布来自Symlink linked files 任务的日志，该任务应该在config/database.yml 上fail，如果它不存在，它有failed 可以找到它，所以它不必被删除。