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[Satish Patel <1891512@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

I am running ussuri on centOS8 and trying to integrate neutron with
designate but i am seeing strange behavior so want to verify if its bug
or not.

I have two network net-foo and net-bar and i have mapped following
designate domain name with each network

$ openstack network set net-foo --dns-domain foo.com.
$ openstack network set net-bar --dns-domain bar.com.

my /etc/neutron/neutron.conf pointing

dns_domain = example.com.

I spun up VM with net-foo and net-bar nothing happened, i didn't see any
A record in DNS.

now changed /etc/neutron/neutron.conf point to dns_domain = foo.com.

I spun up VM with both net-foo and net-bar and noticed foo.com. got A
record but not bar.com. (look like it has to match with dns_domain in
neutron.conf)

Now i changed /etc/neutron/neutron.conf to dns_domain = com.

Now both net-foo and net-bar working fine, and i can see both created A
records in DNS.

Question is do i need to use dns_domain = . (dot) to meet each domain in
worlds like foo.com foo.net foo.org foo.io etc.?

is this normal behavior because i haven't seen any document talking
about this.

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1891512

Title:
  strange behavior of dns_domain with designate multi domain

Status in neutron:
  New

Bug description:
  I am running ussuri on centOS8 and trying to integrate neutron with
  designate but i am seeing strange behavior so want to verify if its
  bug or not.

  I have two network net-foo and net-bar and i have mapped following
  designate domain name with each network

  $ openstack network set net-foo --dns-domain foo.com.
  $ openstack network set net-bar --dns-domain bar.com.

  my /etc/neutron/neutron.conf pointing

  dns_domain = example.com.

  I spun up VM with net-foo and net-bar nothing happened, i didn't see
  any A record in DNS.

  now changed /etc/neutron/neutron.conf point to dns_domain = foo.com.

  I spun up VM with both net-foo and net-bar and noticed foo.com. got A
  record but not bar.com. (look like it has to match with dns_domain in
  neutron.conf)

  Now i changed /etc/neutron/neutron.conf to dns_domain = com.

  Now both net-foo and net-bar working fine, and i can see both created
  A records in DNS.

  Question is do i need to use dns_domain = . (dot) to meet each domain
  in worlds like foo.com foo.net foo.org foo.io etc.?

  is this normal behavior because i haven't seen any document talking
  about this.

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