如何在控制台中显示 Opscode Chef bash 命令的输出？
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How can I display the output of a Opscode Chef bash command in my console?
提问by Bartvds
I use Vagrant to spawn a standard "precise32" box and provision it with Chef so I can test my Node.js code on Linux when I work on a Windows machine. This works fine.
我使用 Vagrant 生成一个标准的“precise32”框并使用 Chef 配置它，这样当我在 Windows 机器上工作时，我就可以在 Linux 上测试我的 Node.js 代码。这工作正常。
I also have this bash command so it auto installs my npm modules:
我也有这个 bash 命令，所以它会自动安装我的 npm 模块：
bash "install npm modules" do
code <<-EOH
su -l vagrant -c "cd /vagrant && npm install"
EOH
end
This also works fine except that I never see the console output if it completes successfully. But I'd like to see it so we can visually monitor what is going on. This is not specific to npm.
这也很好用，只是如果它成功完成，我永远不会看到控制台输出。但我希望看到它，以便我们可以直观地监控正在发生的事情。这不是特定于 npm。
I see this similar question with no concrete answers: Vagrant - how to print Chef's command output to stdout?
我看到这个类似的问题没有具体答案：Vagrant - how to print Chef's command output to stdout?
I tried specifying flags but I'm a terrible linux/ruby n00b and create either errors or no output at all, so please edit my snippet with an example of your solution.
我尝试指定标志，但我是一个糟糕的 linux/ruby n00b 并且创建错误或根本没有输出，所以请用您的解决方案示例编辑我的代码段。
采纳答案by Terry Wang
When you run chef - suppose we are using chef-solo, you can use -l debugto output more debug information into stdout.
当您运行 Chef - 假设我们正在使用 时chef-solo，您可以使用-l debug将更多调试信息输出到标准输出中。
For example: chef-solo -c solo.rb -j node.json -l debug
例如： chef-solo -c solo.rb -j node.json -l debug
For example, a simple cookbook as below:
例如，一个简单的食谱如下：
$ tree
.
├── cookbooks
│?? └── main
│?? └── recipes
│?? └── default.rb
├── node.json
└── solo.rb
3 directories, 3 files
default.rb
默认.rb
bash "echo something" do
code <<-EOF
echo 'I am a chef!'
EOF
end
You'll see the following output like below:
您将看到如下输出：
Compiling Cookbooks...
[2013-07-24T15:49:26+10:00] DEBUG: Cookbooks to compile: [:main]
[2013-07-24T15:49:26+10:00] DEBUG: Loading Recipe main via include_recipe
[2013-07-24T15:49:26+10:00] DEBUG: Found recipe default in cookbook main
[2013-07-24T15:49:26+10:00] DEBUG: Loading from cookbook_path: /data/DevOps/chef/cookbooks
Converging 1 resources
[2013-07-24T15:49:26+10:00] DEBUG: Converging node optiplex790
Recipe: main::default
* bash[echo something] action run[2013-07-24T15:49:26+10:00] INFO: Processing bash[echo something] action run (main::default line 4)
[2013-07-24T15:49:26+10:00] DEBUG: Platform ubuntu version 13.04 found
I am a chef!
[2013-07-24T15:49:26+10:00] INFO: bash[echo something] ran successfully
- execute "bash" "/tmp/chef-script20130724-17175-tgkhkz"
[2013-07-24T15:49:26+10:00] INFO: Chef Run complete in 0.041678909 seconds
[2013-07-24T15:49:26+10:00] INFO: Running report handlers
[2013-07-24T15:49:26+10:00] INFO: Report handlers complete
Chef Client finished, 1 resources updated
[2013-07-24T15:49:26+10:00] DEBUG: Forked child successfully reaped (pid: 17175)
[2013-07-24T15:49:26+10:00] DEBUG: Exiting
I think it contains the information you want. For example, output and the exit status of the shell script/command.
我认为它包含您想要的信息。例如，shell 脚本/命令的输出和退出状态。
BTW: looks like there is a limitation (prompt for password?), you won't be able to use su
顺便说一句：看起来有限制（提示输入密码？），您将无法使用 su
[2013-07-24T15:46:10+10:00] INFO: Running queued delayed notifications before re-raising exception
[2013-07-24T15:46:10+10:00] DEBUG: Re-raising exception: Mixlib::ShellOut::ShellCommandFailed - bash[echo something] (main::default line 4) had an error: Mixlib::ShellOut::ShellCommandFailed: Expected process to exit with [0], but received '1'
---- Begin output of "bash" "/tmp/chef-script20130724-16938-1jhil9v" ----
STDOUT:
STDERR: su: must be run from a terminal
---- End output of "bash" "/tmp/chef-script20130724-16938-1jhil9v" ----
Ran "bash" "/tmp/chef-script20130724-16938-1jhil9v" returned 1
回答by Tom Weiss
I try to use logging when possible, but I've found that in some scenarios seeing the output is important. Here's the short version of the way I do it. Substituting the execute resource for the bash resource also works fine. Both standard error and standard output go into the file.
我尝试尽可能使用日志记录，但我发现在某些情况下查看输出很重要。这是我的做法的简短版本。将执行资源替换为 bash 资源也可以正常工作。标准错误和标准输出都进入文件。
results = "/tmp/output.txt"
file results do
action :delete
end
cmd = "ls /"
bash cmd do
code <<-EOH
#{cmd} &> #{results}
EOH
end
ruby_block "Results" do
only_if { ::File.exists?(results) }
block do
print "\n"
File.open(results).each do |line|
print line
end
end
end
回答by spuder
Use the live_streamattribute of the executeresource
使用资源的live_stream属性execute
execute 'foo' do
command 'cat /etc/hosts'
live_stream true
action :run
end
Script output will be printed to the console
脚本输出将打印到控制台
Starting Chef Client, version 12.18.31
resolving cookbooks for run list: ["apt::default", "foobar::default"]
Synchronizing Cookbooks:
Converging 2 resources
Recipe: foobar::default
* execute[foo] action run
[execute] 127.0.0.1 default-ubuntu-1604 default-ubuntu-1604
127.0.0.1 localhost
127.0.1.1 vagrant.vm vagrant
::1 localhost ip6-localhost ip6-loopback
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters
- execute cat /etc/hosts
回答by Shoan
回答by KCD
Kind of related... setting the log_location(-L) to a file prevents the chef logs (Chef::Log.info()or simply log) from going to standard out.
有点相关……将log_location( -L) 设置为文件可防止厨师日志（Chef::Log.info()或干脆log）进入标准输出。
You can override this to print the full log information to stdout
您可以覆盖它以将完整的日志信息打印到标准输出
chef-client -L /dev/stdout
