Jupyterhub user server : The filled server name is inconsistent with the generated pod name?

meng-yu-github · September 28, 2021, 9:51am

Hi !

The name of my customized server name is inconsistent with that of kubernetes generated pod name. What is the specific method of name conversion？

Problem phenomenon：

Jupyterhub configuration file

c.KubeSpawner.pod_name_template = 'jupyter-{username}--{servername}'

manics · September 28, 2021, 10:40am

Names are escaped to avoid clashes which would result in different users having the same pod name, the details are in

github.com

jupyterhub/kubespawner/blob/5963c1c13e536d40d76e1180a54a69e3ff271411/kubespawner/spawner.py#L1691-L1722

    
      
          def _expand_user_properties(self, template):
              # Make sure username and servername match the restrictions for DNS labels
              # Note: '-' is not in safe_chars, as it is being used as escape character
              safe_chars = set(string.ascii_lowercase + string.digits)
          
          
    raw_servername = self.name or ''
              safe_servername = escapism.escape(
                  raw_servername, safe=safe_chars, escape_char='-'
              ).lower()
          
          
    hub_namespace = self._namespace_default()
              if hub_namespace == "default":
                  hub_namespace = "user"
          
          
    legacy_escaped_username = ''.join(
                  [s if s in safe_chars else '-' for s in self.user.name.lower()]
              )
              safe_username = escapism.escape(
                  self.user.name, safe=safe_chars, escape_char='-'
              ).lower()

This file has been truncated. show original

meng-yu-github · September 29, 2021, 1:30am

@manics Thank you very much.

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Jupyterhub user server : The filled server name is inconsistent with the generated pod name?

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