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[Adam Collard <1771885@xxxxxxxxxxxxxxxxxx>]

** No longer affects: maas/2.3

** No longer affects: maas/2.4

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https://bugs.launchpad.net/bugs/1771885

Title:
  bionic: static maas missing search domain in systemd-resolve
  configuration

Status in cloud-init:
  Won't Fix
Status in juju:
  Fix Released
Status in juju 2.3 series:
  Fix Released
Status in MAAS:
  Fix Released

Bug description:
  juju: 2.4-beta2  
  MAAS: 2.3.0

  Testing deployment of LXD containers on bionic (specifically for an
  openstack deployment) lead to this problem:

  https://bugs.launchpad.net/charm-nova-cloud-controller/+bug/1765405

  Summary:

  previously, the DNS config in the LXD containers were the same as the
  host machines

  now, the DNS config is in systemd, the DNS server is set correctly,
  but the search domain is missing, so hostnames won't resolve.

  Working resolv.conf on xenial lxd container:

  nameserver 10.245.168.6
  search maas

  Non-working "systemd-resolve --status":

  ...
  Link 21 (eth0)
        Current Scopes: DNS
         LLMNR setting: yes
  MulticastDNS setting: no
        DNSSEC setting: no
      DNSSEC supported: no
           DNS Servers: 10.245.168.6

  Working (now able to resolve hostnames after modifying netplan and
  adding search domain):

  Link 21 (eth0)
        Current Scopes: DNS
         LLMNR setting: yes
  MulticastDNS setting: no
        DNSSEC setting: no
      DNSSEC supported: no
           DNS Servers: 10.245.168.6
            DNS Domain: maas

  ubuntu@juju-6406ff-2-lxd-2:/etc$ host node-name
  node-name.maas has address 10.245.168.0

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