我试图理解为什么
的输出knife node list
对
knife exec -E 'nodes.all.each {|n| puts "#{n.name}"}'
不要给我相同的节点名称。我希望上面的命令显示相同的名称，但目前存在差异，似乎第二个命令中没有拾取任何新节点（
knife exec..知道什么可能导致此问题以及如何调试它吗？
提前致谢
查看
knife node listknife node exec请参阅此处的代码
knife node list请参阅此处的
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<h2>knife node list vs. [knife][1] exec</h2>
<p>The <code>knife node list</code> and <code>knife exec -E 'nodes.all.each {|n| puts "#{n.name}"}'</code> commands in Chef serve similar purposes but have some differences in how they operate.</p>
<h3><code>knife node list</code></h3>
<ul>
<li><strong>Usage:</strong> This command is used to list all the nodes that are registered with the Chef Server.</li>
<li><strong>Example:</strong></li>
<pre><code>knife node list</code></pre>
<li><strong>Output:</strong> It will print a simple list of node names.</li>
</ul>
<h3><code>knife exec -E 'nodes.all.each {|n| puts "#{n.name}"}'</code></h3>
<ul>
<li><strong>Usage:</strong> This command uses the knife exec plugin to execute arbitrary Ruby code on the local workstation. In this case, it retrieves and prints the names of all nodes using the nodes.all.each Ruby code.</li>
<li><strong>Example:</strong></li>
<pre><code>knife exec -E 'nodes.all.each {|n| puts "#{n.name}"}'</code></pre>
<li><strong>Output:</strong> Similar to knife node list, it will print a list of node names.</li>
</ul>
<h3>Differences:</h3>
<ul>
<li><strong>Source of Information:</strong></li>
<ul>
<li><code>knife node list</code> directly queries the Chef Server for a list of registered nodes.</li>
<li><code>knife exec</code> with <code>nodes.all.each</code> executes Ruby code locally and may not interact directly with the Chef Server, depending on the context.</li>
</ul>
<li><strong>Flexibility:</strong></li>
<ul>
<li><code>knife node list</code> is a built-in command specifically designed for listing nodes.</li>
<li><code>knife exec</code> with custom Ruby code allows more flexibility as you can execute any Ruby code, making it more powerful but potentially more complex.</li>
</ul>
</ul>
<p>In most cases, if you simply want to list the nodes registered with the Chef Server, <code>knife node list</code> is more straightforward. The <code>knife exec</code> approach is useful when you need to perform more complex or customized operations on the node data using Ruby code.</p>
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