[Bug 1868310] Re: configure_networking fails if dhcp provides no domain search path

[dann frazier]

** Changed in: initramfs-tools (Ubuntu)
       Status: New => In Progress

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https://bugs.launchpad.net/bugs/1868310

Title:
  configure_networking fails if dhcp provides no domain search path

Status in initramfs-tools package in Ubuntu:
  In Progress

Bug description:
  configure_networking() always returns an error for me. Using 'set -x',
  I observed the following at the end of a test script:

  + for n in $ns_addrs
  + '[' ', ' = '["192.168.122.1", ' ']'
  + continue
  + alist='["192.168.122.1"]'
  + '[' -n '' ']'
  + echo '      nameservers:'
  + echo '        addresses: ["192.168.122.1"]'
  + '[' -n '' ']'

  Which corresponds to this line of code in _render_netplan():

                  [ -n "$slist" ] && echo "        search: $slist"

  I noticed that my dhcp server (default libvirt net) does not provide a
  domain search path, which is triggering this. If I move my VM to a
  network w/ a DHCP server that *does* provide this search path, it
  continues fine.

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