It looks like this was caused by https://review.opendev.org/#/c/655208/,
which changes the handling of defaults for config in horizon. Since we
override the OPENSTACK_NEUTRON_NETWORK variable in local_settings.py,
but do not include the default for 'default_dns_nameservers'. A simple
workaround for kolla-ansible is to include the default empty list value
in our override.
I think this is a bug in horizon though - they should still tolerate
missing defaults in dict format config variables.
** Also affects: horizon
Importance: Undecided
Status: New
** Changed in: kolla-ansible
Importance: Undecided => Medium
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https://bugs.launchpad.net/bugs/1843104
Title:
KeyError: 'default_dns_nameservers' in Horizon
Status in OpenStack Dashboard (Horizon):
New
Status in kolla-ansible:
Triaged
Bug description:
With:
kolla_base_distro: "ubuntu"
kolla_install_type: "source"
openstack_release: "master"
and images built on 20190820
Trying to:
-> Create a network via Horizon (Create Network dialog)
I get:
-> Instant Horizon "Danger" error
-> "KeyError: 'default_dns_nameservers'" in
/var/log/kolla/horizon/horizon.log): http://paste.openstack.org/show/772115/
Right now I'm working around this by:
https://github.com/igordcard/homedc/blob/master/scripts/kolla/master/bionic
/fix-horizon-default_dns_nameservers-after.sh#L20
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