Add required_label field to ControlPlane

src/servala/core/admin.py

@@ -131,7 +131,7 @@ class ControlPlaneAdmin(admin.ModelAdmin):
     fieldsets = (
         (
             None,
-            {"fields": ("name", "description", "cloud_provider")},
+            {"fields": ("name", "description", "cloud_provider", "required_label")},
         ),
         (
             _("API Credentials"),

src/servala/core/migrations/0002_alter_controlplanecrd_options_and_more.py

@@ -0,0 +1,31 @@
+# Generated by Django 5.2b1 on 2025-04-03 15:24
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("core", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name="controlplanecrd",
+            options={
+                "verbose_name": "ControlPlane CRD",
+                "verbose_name_plural": "ControlPlane CRDs",
+            },
+        ),
+        migrations.AddField(
+            model_name="controlplane",
+            name="required_label",
+            field=models.CharField(
+                blank=True,
+                help_text="Label value for the 'appcat.vshn.io/provider-config' added to every instance on this plane.",
+                max_length=100,
+                null=True,
+                verbose_name="Required Label",
+            ),
+        ),
+    ]

src/servala/core/models/service.py

@@ -1,5 +1,6 @@
 import kubernetes
 import urlman
+from django.conf import settings
 from django.core.cache import cache
 from django.core.exceptions import ValidationError
 from django.db import models
@@ -106,6 +107,15 @@ class ControlPlane(ServalaModelMixin, models.Model):
         help_text="Required fields: certificate-authority-data, server (URL), token",
         validators=[validate_api_credentials],
     )
+    required_label = models.CharField(
+        max_length=100,
+        blank=True,
+        null=True,
+        verbose_name=_("Required Label"),
+        help_text=_(
+            "Label value for the 'appcat.vshn.io/provider-config' added to every instance on this plane."
+        ),
+    )
 
     cloud_provider = models.ForeignKey(
         to="CloudProvider",
@@ -495,6 +505,8 @@ class ServiceInstance(ServalaModelMixin, models.Model):
             },
             "spec": spec_data or {},
         }
+        if label := context.control_plane.required_label:
+            create_data["metadata"]["labels"] = [{settings.DEFAULT_LABEL_KEY: label}]
         api_instance = client.CustomObjectsApi(
             context.control_plane.get_kubernetes_client()
         )

src/servala/settings.py

@@ -210,6 +210,7 @@ LANGUAGE_COOKIE_NAME = "servala_lang"
 SESSION_COOKIE_NAME = "servala_sess"
 SESSION_COOKIE_SECURE = not DEBUG
 
+DEFAULT_LABEL_KEY = "appcat.vshn.io/provider-config"
 DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"
 
 # TODO