linux - 如何在 Chef Opscode 中使用幂等性仅执行一次挂载资源？

Question

我找不到如何使用 chef 在 linux 中只安装一次设备。这意味着在其他 Chef 客户端上不应执行资源，因为那里的设备已经安装到特定路径。我怎样才能利用 Chef 的幂等性来做到这一点？ ...

这是我在 chef-client 日志末尾看到的日志堆栈跟踪

[2013-11-06T23:12:28+00:00] ERROR: Running exception handlers
[2013-11-06T23:12:29+00:00] FATAL: Saving node information to /var/chef/cache/failed-run-data.json

[2013-11-06T23:12:29+00:00] ERROR: Exception handlers complete

[2013-11-06T23:12:29+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out

[2013-11-06T23:12:29+00:00] FATAL: Mixlib::ShellOut::ShellCommandFailed: mount[/testpath] (mycookbook::myrecipe line 53) had an error: Mixlib::ShellOut::ShellCommandFailed: Expected process to exit with [0], but received '32'


STDOUT: 

STDERR: mount: /dev/xvdb already mounted or /testpath busy
mount: according to mtab, /dev/xvdb is already mounted on /testpath

---- End output of mount -t auto -o defaults /dev/xvdb /testpath ----

Ran mount -t auto -o defaults /dev/xvdb /testpath returned 32

Answer 1

使用 mount资源:

mount '/testpath' do
  device '/dev/xvdb'
  action [:mount, :enable]
end