Edited dns-nameserver parameter on horizon are not applied to instance

Solution In Progress - Updated -

Issue

We edited the dns-nameserver parameter in horizon and the new DNS is not seen in the guest. Here are the steps to reproduce with Horizon:

  1. update dns-nameserver on horizon dashboard
  2. create new instance
  3. cat /etc/resolv.conf

Here are the steps to reproduce with the CLI:

  1. neutron subnet-update --dns-nameserver 10.242.1.254 $SUBNET
  2. create new instance
  3. cat /etc/resolv.conf

Environment

  • Red Hat OpenStack Platform 16.1 (RHOSP)

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