0

我正在使用带有 ec2 驱动程序的 Kitchen 来学习 Chef 和测试过程,并拥有以下 serverspec 文件:

require "serverspec"

set :backend, :exec

describe "rbenv" do
  describe file("/home/ec2-user/.rbenv") do
    it { should be_directory }
  end

  describe command("rbenv versions") do
    its(:exit_status) { should eq 0 }
  end
end

当我运行kitchen verify amazon-linux第一个测试通过但第二个测试失败并导致错误时:

rbenv
         File "/home/ec2-user/.rbenv"
           should be directory
         Command "rbenv versions"
           exit_status
             should eq 0 (FAILED - 1)

       Failures:

         1) rbenv Command "rbenv versions" exit_status should eq 0
            Failure/Error: its(:exit_status) { should eq 0 }

              expected: 0
                   got: 127

              (compared using ==)
              /bin/sh -c rbenv\ versions

            # /tmp/verifier/suites/serverspec/rbenv_spec.rb:11:in `block (3 levels) in <top (required)>'

 Finished in 0.05481 seconds (files took 0.30304 seconds to load)
       2 examples, 1 failure

       Failed examples:

       rspec /tmp/verifier/suites/serverspec/rbenv_spec.rb:11 # rbenv Command "rbenv versions" exit_status should eq 0

       /opt/chef/embedded/bin/ruby -I/tmp/verifier/suites/serverspec -I/tmp/verifier/gems/gems/rspec-support-3.4.1/lib:/tmp/ver
ifier/gems/gems/rspec-core-3.4.4/lib /opt/chef/embedded/bin/rspec --pattern /tmp/verifier/suites/serverspec/\*\*/\*_spec.rb --c
olor --format documentation --default-path /tmp/verifier/suites/serverspec failed
       !!!!!! Ruby Script [/tmp/verifier/gems/gems/busser-serverspec-0.5.9/lib/busser/runner_plugin/../serverspec/runner.rb /tm
p/verifier/suites/serverspec] exit code was 1
>>>>>> Verify failed on instance <default-amazon-linux>.
>>>>>> Please see .kitchen/logs/default-amazon-linux.log for more details
>>>>>> ------Exception-------
>>>>>> Class: Kitchen::ActionFailed
>>>>>> Message: SSH exited (1) for command: [sh -c '
BUSSER_ROOT="/tmp/verifier"; export BUSSER_ROOT
GEM_HOME="/tmp/verifier/gems"; export GEM_HOME
GEM_PATH="/tmp/verifier/gems"; export GEM_PATH
GEM_CACHE="/tmp/verifier/gems/cache"; export GEM_CACHE

sudo -E /tmp/verifier/bin/busser test
']
>>>>>> ----------------------

我手动登录服务器并运行相同的命令/bin/sh -c rbenv\ versions,它工作正常。

谁能告诉我这里是否做错了什么?

编辑 1

我刚刚发现,当 serverspec 运行命令时,$PATH变量与我手动登录时的变量不同。我添加puts ENV['PATH']到测试中,输出是这样的:

/sbin:/bin:/usr/sbin:/usr/bin

但是,当我手动登录时,我得到了这个:

/home/ec2-user/.rbenv/shims:/home/ec2-user/.rbenv/bin:/home/ec2-user/.rbenv/shims:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin:/opt/aws/bin:/home/ec2-user/.local/bin:/home/ec2-user/bin

我将测试中的命令更改为/home/ec2-user/.rbenv/rbenv versions并通过了。知道我需要做什么才能使路径在这里正常工作吗?

编辑 2

所以我发现 serverspec 正在运行命令 as root,这意味着在ec2-user's path 期间发生的更改kitchen converge不可用。

我不知道是否有更惯用的方法来使用 serverspec 执行此操作,但我将命令更改为此并且测试现在通过了:

runuser -l ec2-user -c 'rbenv versions'

这允许root以另一个用户身份运行命令。除非有人知道进行此类测试的更好方法,否则我会将其添加为问题的答案。

4

1 回答 1

1

serverspec 以 root 身份运行其命令,因此在收敛期间对任何其他用户的路径所做的更改都无关紧要。

使用 Linuxrunuser命令将允许root以另一个用户身份运行命令,从而获得对该用户的访问权限$PATH

runuser -l ec2-user -c 'rbenv versions'
于 2016-06-16T12:53:43.053 回答