fix(kubernetes): Change UID validation (#6869)

Co-authored-by: Sergio Garcia <hello@mistercloudsec.com>

api/src/backend/api/migrations/0009_increase_provider_uid_maximum_length.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.1.5 on 2025-02-07 09:42
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("api", "0008_daily_scheduled_tasks_update"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="provider",
+            name="uid",
+            field=models.CharField(
+                max_length=250,
+                validators=[django.core.validators.MinLengthValidator(3)],
+                verbose_name="Unique identifier for the provider, set by the provider",
+            ),
+        ),
+    ]

api/src/backend/api/models.py

@@ -227,13 +227,13 @@ class Provider(RowLevelSecurityProtectedModel):
     @staticmethod
     def validate_kubernetes_uid(value):
         if not re.match(
-            r"(^[a-z0-9]([-a-z0-9]{1,61}[a-z0-9])?$)|(^arn:aws(-cn|-us-gov|-iso|-iso-b)?:[a-zA-Z0-9\-]+:([a-z]{2}-[a-z]+-\d{1})?:(\d{12})?:[a-zA-Z0-9\-_\/:\.\*]+(:\d+)?$)",
+            r"^[a-z0-9][A-Za-z0-9_.:\/-]{1,250}$",
             value,
         ):
             raise ModelValidationError(
                 detail="The value must either be a valid Kubernetes UID (up to 63 characters, "
                 "starting and ending with a lowercase letter or number, containing only "
-                "lowercase alphanumeric characters and hyphens) or a valid EKS ARN.",
+                "lowercase alphanumeric characters and hyphens) or a valid AWS EKS Cluster ARN, GCP GKE Context Name or Azure AKS Cluster Name.",
                 code="kubernetes-uid",
                 pointer="/data/attributes/uid",
             )
@@ -247,7 +247,7 @@ class Provider(RowLevelSecurityProtectedModel):
     )
     uid = models.CharField(
         "Unique identifier for the provider, set by the provider",
-        max_length=63,
+        max_length=250,
         blank=False,
         validators=[MinLengthValidator(3)],
     )

api/src/backend/api/tests/test_views.py

@@ -885,6 +885,16 @@ class TestProviderViewSet:
                     "uid": "kubernetes-test-123456789",
                     "alias": "test",
                 },
+                {
+                    "provider": "kubernetes",
+                    "uid": "arn:aws:eks:us-east-1:111122223333:cluster/test-cluster-long-name-123456789",
+                    "alias": "EKS",
+                },
+                {
+                    "provider": "kubernetes",
+                    "uid": "gke_aaaa-dev_europe-test1_dev-aaaa-test-cluster-long-name-123456789",
+                    "alias": "GKE",
+                },
                 {
                     "provider": "azure",
                     "uid": "8851db6b-42e5-4533-aa9e-30a32d67e875",