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[James Falcon <2006518@xxxxxxxxxxxxxxxxxx>]

Tracked in Github Issues as https://github.com/canonical/cloud-
init/issues/4075

** Bug watch added: github.com/canonical/cloud-init/issues #4075
   https://github.com/canonical/cloud-init/issues/4075

** Changed in: cloud-init
       Status: Triaged => Expired

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https://bugs.launchpad.net/bugs/2006518

Title:
  Inconsistent kernel command line datasource detection

Status in cloud-init:
  Expired

Bug description:
  cloud-init has undocumented support for declaring datasources using
  the kernel commandline. This proves valuable in edge case scenarios as
  a workaround when ds-identify detection is broken.

  This behavior is inconsistently supported across datasources, several
  of which[1] do some form of runtime detection in the datasource module
  which may override cmdline-specified datasources.

  We should either fix current behavior or provide a new key name in the
  cmdline that always overrides runtime cloud-init detection in all
  datasources (likely involving a refactor into the datasource class).
  Once complete, this should be documented.

  
  Originally reported in [2].

  [1] one example: https://github.com/canonical/cloud-init/blob/02202954c65a7a1cdb9b28703bd0af01edd0e091/cloudinit/sources/DataSourceOpenStack.py#L271
  [2] https://bugs.launchpad.net/cloud-init/+bug/1815990

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