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[Bug 1763608] Re: Netplan ignores Interfaces without IP Addresses

 

For example kolla/openstack requires running interface without an configuration. It attaches it's open-switch bridges in a later startup process.
Example:
https://docs.openstack.org/neutron/rocky/install/environment-networking-controller-ubuntu.html


** Also affects: neutron
   Importance: Undecided
       Status: New

** Also affects: kolla
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1763608

Title:
  Netplan ignores Interfaces without IP Addresses

Status in kolla:
  New
Status in netplan:
  New
Status in neutron:
  New

Bug description:
  The "manual" method in /etc/network/interfaces resulted in an
  interface being brought up, but not having an IP address assigned.

  When configuring an Interface without an IP Address, netplan ignores
  the interface instead of bringing it up.

  ---
  network:
    version: 2
    renderer: networkd
    ethernets:
      eth1: {}

  Expected result from `netplan apply`: eth1 is brought up.
  Actual result: eth1 is still down.

  Similarly `netplan generate` does not generate any file in
  /run/systemd/network for eth1.

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