12175 add rack starting unit

netbox/dcim/constants.py

@@ -16,6 +16,8 @@ RACK_ELEVATION_BORDER_WIDTH = 2
 RACK_ELEVATION_DEFAULT_LEGEND_WIDTH = 30
 RACK_ELEVATION_DEFAULT_MARGIN_WIDTH = 15
 
+RACK_STARTING_UNIT_DEFAULT = 1
+
 
 #
 # RearPorts

netbox/dcim/migrations/0174_rack_starting_unit.py

@@ -0,0 +1,17 @@
+# Generated by Django 4.1.9 on 2023-05-31 15:47
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ('dcim', '0173_remove_napalm_fields'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='rack',
+            name='starting_unit',
+            field=models.PositiveSmallIntegerField(default=1),
+        ),
+    ]

netbox/dcim/models/racks.py

@@ -129,6 +129,11 @@ class Rack(PrimaryModel, WeightMixin):
         validators=[MinValueValidator(1), MaxValueValidator(100)],
         help_text=_('Height in rack units')
     )
+    starting_unit = models.PositiveSmallIntegerField(
+        default=RACK_STARTING_UNIT_DEFAULT,
+        verbose_name='Starting unit',
+        help_text=_('Starting unit for rack')
+    )
     desc_units = models.BooleanField(
         default=False,
         verbose_name='Descending units',