Files
NetBox-Concept/netbox_rack_concept/deploy.py
T
MrBlakeandClaude Sonnet 5 777ded3900 Fix elevation overlap, add device images, rack merge, and size override
- Fix elevation rendering bug: device blocks were drawn MARGIN px
  further right than the rack frame/unit slots, causing them to
  overlap and extend past the right border. All three now share one
  RACK_X origin.
- Show the device type's front/rear image inside each elevation block
  (clipped to the block, translucent label bar on top for legibility)
  when one is set on the device type; falls back to a plain colour
  block with text otherwise.
- Add "Merge" action to combine two concepts into one taller one (e.g.
  two half-height racks stacked into a full-height rack): the top
  concept's devices are shifted up by the bottom concept's height,
  neither source is modified. Available from the plugin menu, from a
  concept's detail page, and via POST /concepts/merge/.
- Copying a real rack into a concept can now target a different width,
  height and/or starting unit than the source rack; devices that no
  longer fit at the chosen size are skipped and reported as warnings
  instead of aborting the copy.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-16 09:35:18 +02:00

359 lines
13 KiB
Python

"""
The four copy paths: rack -> concept, concept -> concept, concept -> rack(s), and
concept + concept -> one merged concept.
"""
from django.conf import settings
from django.core.exceptions import ValidationError
from django.db import transaction
from django.utils.translation import gettext as _
from dcim.models import Device, Rack
from .choices import ConceptDeviceStatusChoices, ConceptStatusChoices
from .integrations import apply_partial_width, read_partial_width
from .models import ConceptDeployment, ConceptDevice, RackConcept
__all__ = (
'clone_concept',
'copy_rack_to_concept',
'deploy_concept',
'merge_concepts',
'validate_deployment',
)
GEOMETRY_FIELDS = (
'form_factor', 'width', 'u_height', 'starting_unit', 'desc_units', 'outer_width', 'outer_height',
'outer_depth', 'outer_unit', 'mounting_depth', 'airflow', 'max_weight',
)
def _config():
return settings.PLUGINS_CONFIG.get('netbox_rack_concept', {})
#
# dcim.Rack -> RackConcept
#
@transaction.atomic
def copy_rack_to_concept(rack, name, status=ConceptStatusChoices.STATUS_DRAFT, tenant=None, tenant_group=None,
description='', include_devices=True, include_device_names=True,
override_width=None, override_u_height=None, override_starting_unit=None):
"""
Snapshot a real rack, and optionally its contents, into a new blueprint. Passing an
override lets the concept end up a different size than the source rack (e.g. to
plan "what if we had a taller one"); devices that no longer fit are skipped and
reported back as warnings rather than aborting the whole copy.
Returns (concept, warnings).
"""
concept = RackConcept(
name=name,
status=status,
tenant=tenant,
tenant_group=tenant_group,
description=description,
rack_type=rack.rack_type,
default_site=rack.site,
default_location=rack.location,
rack_role=rack.role,
source_rack=rack,
)
for field in GEOMETRY_FIELDS:
value = getattr(rack, field, None)
# A rack built from a rack type may leave its own dimension fields empty.
if value in (None, '') and rack.rack_type:
value = getattr(rack.rack_type, field, None)
if value not in (None, ''):
setattr(concept, field, value)
has_override = any(v is not None for v in (override_width, override_u_height, override_starting_unit))
if has_override:
# The concept's own geometry fields are ignored on deploy as long as rack_type
# is set (NetBox derives geometry from the type). Since the override is the
# whole point here, it must not be silently overruled by the source's type.
concept.rack_type = None
if override_width:
concept.width = override_width
if override_u_height:
concept.u_height = override_u_height
if override_starting_unit:
concept.starting_unit = override_starting_unit
concept.full_clean()
concept.save()
warnings = []
if include_devices:
devices = Device.objects.filter(rack=rack, position__isnull=False).select_related(
'device_type', 'role', 'platform', 'tenant'
)
for device in devices:
fraction, horizontal = read_partial_width(device)
concept_device = ConceptDevice(
concept=concept,
name=(device.name or '') if include_device_names else '',
status=ConceptDeviceStatusChoices.STATUS_EXISTING,
device_type=device.device_type,
role=device.role,
platform=device.platform,
tenant=device.tenant,
position=device.position,
face=device.face,
width_fraction=fraction,
horizontal_position=horizontal,
serial=device.serial if include_device_names else '',
source_device=device,
)
if has_override:
try:
concept_device.full_clean()
except ValidationError:
warnings.append(_(
'%(device)s (U%(position)s) does not fit in the chosen size and was left out.'
) % {'device': device, 'position': device.position})
continue
concept_device.save()
return concept, warnings
#
# RackConcept + RackConcept -> RackConcept (stacked)
#
@transaction.atomic
def merge_concepts(concept_bottom, concept_top, name, status=ConceptStatusChoices.STATUS_DRAFT, tenant=None,
tenant_group=None, width=None, u_height=None, starting_unit=1, description=''):
"""
Stack two blueprints into one taller one - e.g. two half-height racks combined into
a full-height rack. concept_bottom's devices keep their position; concept_top's are
shifted up by concept_bottom's height. Neither source concept is modified.
Returns (merged_concept, warnings).
"""
offset = concept_bottom.u_height
total_height = u_height or (concept_bottom.u_height + concept_top.u_height)
merged = RackConcept(
name=name,
status=status,
tenant=tenant,
tenant_group=tenant_group,
description=description,
width=width or concept_bottom.width,
u_height=total_height,
starting_unit=starting_unit,
form_factor=concept_bottom.form_factor,
airflow=concept_bottom.airflow,
default_site=concept_bottom.default_site or concept_top.default_site,
default_location=concept_bottom.default_location or concept_top.default_location,
rack_role=concept_bottom.rack_role or concept_top.rack_role,
)
merged.full_clean()
merged.save()
warnings = []
def _copy_devices(source, shift):
for device in source.devices.all():
concept_device = ConceptDevice(
concept=merged,
name=device.name,
label=device.label,
status=device.status,
device_type=device.device_type,
role=device.role,
platform=device.platform,
tenant=device.tenant,
position=(device.position + shift) if device.position is not None else None,
face=device.face,
width_fraction=device.width_fraction,
horizontal_position=device.horizontal_position,
u_height=device.u_height,
is_full_depth=device.is_full_depth,
serial=device.serial,
description=device.description,
comments=device.comments,
source_device=device.source_device,
)
try:
concept_device.full_clean()
except ValidationError:
warnings.append(_(
'%(device)s from %(concept)s does not fit at its shifted position and was left out.'
) % {'device': device, 'concept': source})
continue
concept_device.save()
_copy_devices(concept_bottom, 0)
_copy_devices(concept_top, offset)
return merged, warnings
#
# RackConcept -> RackConcept
#
@transaction.atomic
def clone_concept(concept, name, status=ConceptStatusChoices.STATUS_DRAFT, tenant=None, include_devices=True):
"""Duplicate a blueprint so variants can be built without touching the original."""
clone = RackConcept(
name=name,
status=status,
tenant=tenant or concept.tenant,
tenant_group=concept.tenant_group,
description=concept.description,
comments=concept.comments,
rack_type=concept.rack_type,
default_site=concept.default_site,
default_location=concept.default_location,
rack_role=concept.rack_role,
source_rack=concept.source_rack,
)
for field in GEOMETRY_FIELDS:
setattr(clone, field, getattr(concept, field))
clone.full_clean()
clone.save()
if include_devices:
for device in concept.devices.all():
ConceptDevice.objects.create(
concept=clone,
name=device.name,
label=device.label,
status=device.status,
device_type=device.device_type,
role=device.role,
platform=device.platform,
tenant=device.tenant,
position=device.position,
face=device.face,
width_fraction=device.width_fraction,
horizontal_position=device.horizontal_position,
u_height=device.u_height,
is_full_depth=device.is_full_depth,
serial=device.serial,
description=device.description,
comments=device.comments,
source_device=device.source_device,
)
return clone
#
# RackConcept -> dcim.Rack
#
def validate_deployment(concept, create_devices=True, skip_unnamed_devices=True):
"""
Report what a deployment would and would not be able to create. Returned as
(deployable_devices, warnings) so the confirmation page can show it before anything
is written.
"""
warnings = []
deployable = []
if create_devices:
for device in concept.devices.select_related('device_type', 'role'):
if device.position is None:
warnings.append(_('%(device)s has no position and will not be created.') % {'device': device})
continue
if device.device_type is None:
warnings.append(
_('%(device)s is reserved space without a device type and will not be created.')
% {'device': device}
)
continue
if device.role is None:
warnings.append(
_('%(device)s has no role. NetBox requires one, so it will not be created.')
% {'device': device}
)
continue
if not device.name and skip_unnamed_devices:
warnings.append(_('%(device)s has no name and will be skipped.') % {'device': device})
continue
if device.status == ConceptDeviceStatusChoices.STATUS_OPTIONAL:
warnings.append(
_('%(device)s is marked optional but will be created.') % {'device': device}
)
deployable.append(device)
return deployable, warnings
@transaction.atomic
def deploy_concept(concept, rack_names, site, location=None, tenant=None, create_devices=True,
device_name_pattern='', skip_unnamed_devices=True, user=None):
"""
Materialise the blueprint as one real rack per name in `rack_names`.
Returns (racks, devices, warnings).
"""
config = _config()
rack_status = config.get('deployed_rack_status', 'planned')
device_status = config.get('deployed_device_status', 'planned')
planned, warnings = validate_deployment(concept, create_devices, skip_unnamed_devices)
racks = []
created_devices = []
for rack_name in rack_names:
rack = Rack(
name=rack_name,
site=site,
location=location,
tenant=tenant or concept.tenant,
status=rack_status,
role=concept.rack_role,
description=concept.description,
comments=concept.comments,
)
if concept.rack_type:
# Let NetBox derive the geometry from the rack type rather than fighting it.
rack.rack_type = concept.rack_type
else:
for field in GEOMETRY_FIELDS:
setattr(rack, field, getattr(concept, field))
rack.full_clean()
rack.save()
racks.append(rack)
rack_device_count = 0
for planned_device in planned:
name = planned_device.name
if name and device_name_pattern:
name = device_name_pattern.format(rack=rack_name, name=planned_device.name)
device = Device(
name=name or None,
device_type=planned_device.device_type,
role=planned_device.role,
platform=planned_device.platform,
site=site,
location=location,
rack=rack,
position=planned_device.position,
face=planned_device.face,
status=device_status,
tenant=planned_device.tenant or tenant or concept.tenant,
serial=planned_device.serial,
description=planned_device.description,
)
device.full_clean()
device.save()
apply_partial_width(device, planned_device)
created_devices.append(device)
rack_device_count += 1
ConceptDeployment.objects.create(
concept=concept,
rack=rack,
rack_name=rack_name,
device_count=rack_device_count,
user=user if user and user.is_authenticated else None,
)
return racks, created_devices, warnings