Hi,
ok so you don't have an <interface>.dhclient that provides your dns resolution 
as provided by dhcp.
Furthermore I see you have a networkmanager config while I have none.

Networkmanager is not in use on Ubuntu Server, but on Desktop. So I
assume you are running a [ULK..]Ubuntu Desktop edition while running
into this issue?

Also just to confirm your system gets its IP and DNS infos via dhcp is that 
correct?
I assume that in your case somehow network manager is soaking that up which 
leads to the issue of dnsmasq not being able to find the info when starting up.

This more and more leaves my area of expertise :-/
Adding a networkmanager task as well for now.

** Also affects: network-manager (Ubuntu)
   Importance: Undecided
       Status: New

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You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to dnsmasq in Ubuntu.
https://bugs.launchpad.net/bugs/1688364

Title:
  Non existent host causes 100% cpu utilization by systemd-resolved and
  dnsmasq

Status in dnsmasq package in Ubuntu:
  Incomplete
Status in network-manager package in Ubuntu:
  New
Status in resolvconf package in Ubuntu:
  New

Bug description:
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] googletagservices.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded googletagservices.com 
to 127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: forwarded cf.shareasimage.com to 
127.0.0.53
  May 04 13:32:07 cannon-fodder dnsmasq[8101]: query[A] cf.shareasimage.com 
from 127.0.0.1

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