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[Chad Smith <1798424@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

cloud-init v. 18.4-0ubuntu1~16.04.1 in -proposed automatically renders
network configuration from Azure's IMDS by default instead of fallback
config of dhcp on eth0. This represents a difference in behavior from
current Xenial.


On Xenial Azure, Ubuntu cloud images have udev scripts to handle network hotplug. Azure datasource has the ability to read full network config from their IMDS service and render hotplugged devices as well as remove the cloud-image default scripts.

Make the cloud-init hotplug behavior configurable and default it to off
in Xenial.

** Affects: cloud-init
     Importance: High
     Assignee: Chad Smith (chad.smith)
         Status: In Progress


** Tags: regression-proposed-xenial

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https://bugs.launchpad.net/bugs/1798424

Title:
  Xenial Azure: Make generation of network config from IMDS  hotplug
  scripts configurable opt-in

Status in cloud-init:
  In Progress

Bug description:
  cloud-init v. 18.4-0ubuntu1~16.04.1 in -proposed automatically renders
  network configuration from Azure's IMDS by default instead of fallback
  config of dhcp on eth0. This represents a difference in behavior from
  current Xenial.

  
  On Xenial Azure, Ubuntu cloud images have udev scripts to handle network hotplug. Azure datasource has the ability to read full network config from their IMDS service and render hotplugged devices as well as remove the cloud-image default scripts.

  Make the cloud-init hotplug behavior configurable and default it to
  off in Xenial.

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