Fixed the arch attribute in the Computing model moving from a property to a field.

services/webapp/code/rosetta/core_app/migrations/0028_computing_arch.py

+# Generated by Django 2.2.1 on 2021-11-24 01:00
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('core_app', '0027_computing_supported_archs'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='computing',
+            name='arch',
+            field=models.CharField(default='amd64', max_length=255, verbose_name='Architecture'),
+            preserve_default=False,
+        ),
+    ]

services/webapp/code/rosetta/core_app/models.py

@@ -230,11 +230,6 @@ class Computing(models.Model):
     def default_container_runtime(self):
         return str(self.container_runtimes).split(',')[0]
     
-    @property
-    def arch(self):
-        return 'amd64'
-    
-
 
     #=======================
     # Computing manager