chore(rootfs/api/migrations): add db migration.

add DB migration for termination grace period

Author: notmaxx

rootfs/api/migrations/0027_config_termination_grace_period.py

@@ -0,0 +1,21 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.4 on 2018-04-24 01:41
+from __future__ import unicode_literals
+
+from django.db import migrations
+import jsonfield.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0026_release_exception'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='config',
+            name='termination_grace_period',
+            field=jsonfield.fields.JSONField(blank=True, default={}),
+        ),
+    ]