kubectl:描述vs get -o< format> [英] kubectl: describe vs get -o <format>

问题描述

在kubectl中，describe和get -o <format>都可以用来获取资源的详细信息，我想知道两者之间有什么区别?如果get可以做同样的事情甚至更多，为什么describe甚至存在?

In kubectl, both describe and get -o <format> can be used to get the details of a resource, I'm wondering what's the difference between the two? why does describe even exist if get can do the same thing and more?

推荐答案

• kubectl get默认显示表格. (您可以轻松查看/可视化大量对象)

  • kubectl get shows tables by default. (You can view/visualize large no of objects easily)

    kubectl describe显示详细说明. (最好是单个对象)

    kubectl describe shows the detailed description. (Better for a single object)

    kubectl describe更平整，数据更少，更易于读取

  kubectl describe is more flattened, has lesser data and easier to read than the full object data given by kubectl get -o yaml

  帮助输出以供参考.

  kubectl describe -h

  Show details of a specific resource or group of resources
  
   Print a detailed description of the selected resources, including related resources such as events or controllers. You
  may select a single object by name, all objects of that type, provide a name prefix, or label selector. For example:
  
    $ kubectl describe TYPE NAME_PREFIX
  
   will first check for an exact match on TYPE and NAME_PREFIX. If no such resource exists, it will output details for
  every resource that has a name prefixed with NAME_PREFIX.
  
  Use "kubectl api-resources" for a complete list of supported resources.
  

  kubectl get -h

  Display one or many resources
  
   Prints a table of the most important information about the specified resources. You can filter the list using a label
  selector and the --selector flag. If the desired resource type is namespaced you will only see results in your current
  namespace unless you pass --all-namespaces.
  
   Uninitialized objects are not shown unless --include-uninitialized is passed.
  
   By specifying the output as 'template' and providing a Go template as the value of the --template flag, you can filter
  the attributes of the fetched resources.
  
  Use "kubectl api-resources" for a complete list of supported resources.
  

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