Public bug reported:
Hello,
DESCRIPTION
-----------
I want Nova to behave like that when Availability Zone is not specified
(`Any Availability Zone` is set in Horizon), it will create VM in random
AZ.
STEPS TO REPRODUCE
------------------
Steps I do to configure that:
1. In `nova.conf` I set `default_schedule_zone = None` and restarted all nova
services. I found this attribute in documentation [1] and also in Mirantis blog
post [2]
2. I create 2 availability zones (2 host aggregates each with 1 hypervisor
added).
3. I try to create VM In Horizon with `Any Availability Zone` and it results in
following error:
The requested availability zone is not available (HTTP 400).
The commands I executed to create AZs:
```
openstack aggregate create HA-Test1 --zone AZ-Test1 --property
availability_zone=AZ-Test1
openstack aggregate create HA-Test2 --zone AZ-Test2 --property
availability_zone=AZ-Test2
openstack aggregate add host HA-Test1 os-compute-01
openstack aggregate add host HA-Test2 os-compute-02
```
POINT
-----
Now this doesn't work as expected, but(!) when I remove `nova.conf`
attribute `default_schedule_zone = None`, or I will configure it empty
`default_schedule_zone = `, spawning of VMs works as expected and they
are scheduled in random AZ.
Therefore I think that Nova doesn't handle `None` as python `None`, but
as string (As if you set default schedule zone to zone `None`).
ENVIRONMENT
-----------
I am using stable Pike release with KVM + Libvirt installed via
Openstack-Ansible on Ubuntu 16.04.
[1]
https://docs.openstack.org/ocata/config-reference/compute/config-options.html
[2]
https://www.mirantis.com/blog/the-first-and-final-word-on-openstack-availability-zones/
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1730918
Title:
Nova does not respect default_schedule_zone `None`
Status in OpenStack Compute (nova):
New
Bug description:
Hello,
DESCRIPTION
-----------
I want Nova to behave like that when Availability Zone is not
specified (`Any Availability Zone` is set in Horizon), it will create
VM in random AZ.
STEPS TO REPRODUCE
------------------
Steps I do to configure that:
1. In `nova.conf` I set `default_schedule_zone = None` and restarted all nova
services. I found this attribute in documentation [1] and also in Mirantis blog
post [2]
2. I create 2 availability zones (2 host aggregates each with 1 hypervisor
added).
3. I try to create VM In Horizon with `Any Availability Zone` and it results
in following error:
The requested availability zone is not available (HTTP 400).
The commands I executed to create AZs:
```
openstack aggregate create HA-Test1 --zone AZ-Test1 --property
availability_zone=AZ-Test1
openstack aggregate create HA-Test2 --zone AZ-Test2 --property
availability_zone=AZ-Test2
openstack aggregate add host HA-Test1 os-compute-01
openstack aggregate add host HA-Test2 os-compute-02
```
POINT
-----
Now this doesn't work as expected, but(!) when I remove `nova.conf`
attribute `default_schedule_zone = None`, or I will configure it empty
`default_schedule_zone = `, spawning of VMs works as expected and they
are scheduled in random AZ.
Therefore I think that Nova doesn't handle `None` as python `None`,
but as string (As if you set default schedule zone to zone `None`).
ENVIRONMENT
-----------
I am using stable Pike release with KVM + Libvirt installed via
Openstack-Ansible on Ubuntu 16.04.
[1]
https://docs.openstack.org/ocata/config-reference/compute/config-options.html
[2]
https://www.mirantis.com/blog/the-first-and-final-word-on-openstack-availability-zones/
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https://bugs.launchpad.net/nova/+bug/1730918/+subscriptions
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