I'm using maas snap version/build 3.2.2-12005-g.f0f96fa78.
Server: Dell R630
Prior to 3.2.2 I had several servers enlisted & deployed. I've was having trouble with some LXD VM's (no logs on that, sorry - essentially my LXD VM's would intermittently lose network connection between LXD VM's on the same host) so I released the host hoping to re-deploy the LXD host and fix what ever issues might have been host related. I ended up deleting the server and re-commissioning it.
After much debugging, I found that re-deploying my server would fail anytime I selected it as either a LXD or virsh KVM host with the error below from the regiond.log
```
2022-08-09 19:07:20 metadataserver.api_twisted: [critical] Error saving VM host: {'name': ['Tag with this Name already exists.']}
Traceback (most recent call last):
File "/snap/maas/23178/lib/python3.8/site-packages/maasserver/utils/orm.py", line 756, in call_within_transaction
return func_outside_txn(*args, **kwargs)
File "/snap/maas/23178/lib/python3.8/site-packages/maasserver/utils/orm.py", line 559, in retrier
return func(*args, **kwargs)
File "/usr/lib/python3.8/contextlib.py", line 75, in inner
return func(*args, **kwds)
File "/snap/maas/23178/lib/python3.8/site-packages/metadataserver/api_twisted.py", line 472, in _processMessage
_create_vmhost_for_deployment(node)
--- <exception caught here> ---
File "/snap/maas/23178/lib/python3.8/site-packages/metadataserver/api_twisted.py", line 251, in _create_vmhost_for_deployment
pod = pod_form.save()
File "/snap/maas/23178/lib/python3.8/site-packages/maasserver/forms/pods.py", line 306, in save
tag, _ = Tag.objects.get_or_create(
File "/snap/maas/23178/usr/lib/python3/dist-packages/django/db/models/manager.py", line 82, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "/snap/maas/23178/usr/lib/python3/dist-packages/django/db/models/query.py", line 541, in get_or_create
return self._create_object_from_params(kwargs, params)
File "/snap/maas/23178/usr/lib/python3/dist-packages/django/db/models/query.py", line 575, in _create_object_from_params
obj = self.create(**params)
File "/snap/maas/23178/usr/lib/python3/dist-packages/django/db/models/query.py", line 422, in create
obj.save(force_insert=True, using=self.db)
File "/snap/maas/23178/lib/python3.8/site-packages/maasserver/models/tag.py", line 143, in save
super().save(*args, **kwargs)
File "/snap/maas/23178/lib/python3.8/site-packages/maasserver/models/cleansave.py", line 182, in save
self.validate_unique(exclude=[self._meta.pk.name])
File "/snap/maas/23178/usr/lib/python3/dist-packages/django/db/models/base.py", line 987, in validate_unique
raise ValidationError(errors)
django.core.exceptions.ValidationError: {'name': ['Tag with this Name already exists.']}
```
I released the machine and attempted to re-deploy again as an LXD host and it fails with the same error as above. I cycled and tried several times with the same results today. Essentially, I can:
- deploy without being a KVM host or
- fail deployment trying to be a KVM host.
Pass Deployment options:
Ubuntu 20.04 with hwe-20.04-edge kernel
Fail Deployment options:
Ubuntu 20.04 with hwe-20.04-edge kernel
KVM Host - both LXD or Virsh
Can you show us the output of "maas $ADMIN tags read"?