Mute common error when deleting VPC

ocw/lib/db.py

@@ -8,7 +8,7 @@
 from ocw.apps import getScheduler
 from webui.PCWConfig import PCWConfig
 from ..models import Instance, StateChoice, ProviderChoice, CspInfo
-from .emailnotify import send_mail, send_leftover_notification
+from .emailnotify import send_mail
 from .azure import Azure
 from .ec2 import EC2
 from .gce import GCE
@@ -155,7 +155,6 @@ def update_run() -> None:
                           traceback.format_exc())
 
     auto_delete_instances()
-    send_leftover_notification()
     RUNNING = False
     if not error_occured:
         LAST_UPDATE = datetime.now(timezone.utc)

ocw/lib/ec2.py

@@ -325,7 +325,12 @@ def vpc_can_be_deleted(self, resource_vpc, vpc_id) -> bool:
 
     def report_cleanup_results(self, vpc_errors: list, vpc_notify: list, vpc_locked: list) -> None:
         if len(vpc_errors) > 0:
-            send_mail(f'Errors on VPC deletion in [{self._namespace}]', '\n'.join(vpc_errors))
+            # this is most common error message which we can not fix.
+            # So no point to spam us with notifications about it
+            known_error = "An error occurred (DependencyViolation) when calling the DeleteVpc operation"
+            filtered = [x for x in vpc_errors if known_error not in x]
+            if len(filtered) > 0:
+                send_mail(f'Errors on VPC deletion in [{self._namespace}]', '\n'.join(vpc_errors))
         if len(vpc_notify) > 0:
             send_mail(f'{len(vpc_notify)} VPC\'s should be deleted, skipping due vpc-notify-only=True', ','.join(vpc_notify))
         if len(vpc_locked) > 0:

ocw/lib/emailnotify.py

@@ -1,12 +1,10 @@
-from datetime import timedelta
 import smtplib
 import logging
 from email.mime.text import MIMEText
 from texttable import Texttable
 from django.urls import reverse
 from webui.PCWConfig import PCWConfig
 from webui.settings import build_absolute_uri
-from ..models import Instance
 
 logger = logging.getLogger(__name__)
 
@@ -31,22 +29,6 @@ def draw_instance_table(objects):
     return table.draw()
 
 
-def send_leftover_notification():
-    if PCWConfig.has('notify'):
-        all_instances = Instance.objects
-        all_instances = all_instances.filter(active=True, age__gt=timedelta(hours=PCWConfig.get_feature_property(
-            'notify', 'age-hours'))).exclude(ignore=True)
-        body_prefix = f"Message from {build_absolute_uri()}\n\n"
-        # Handle namespaces
-        for namespace in PCWConfig.get_namespaces_for('notify'):
-            receiver_email = PCWConfig.get_feature_property('notify', 'to', namespace)
-            namespace_objects = all_instances.filter(namespace=namespace)
-            if namespace_objects.filter(notified=False).count() > 0 and receiver_email:
-                send_mail(f'CSP left overs - {namespace}',
-                          body_prefix + draw_instance_table(namespace_objects), receiver_email=receiver_email)
-        all_instances.update(notified=True)
-
-
 def send_cluster_notification(namespace, clusters):
     if len(clusters) and PCWConfig.has('notify'):
         clusters_str = ''

ocw/migrations/0013_remove_instance_notified_alter_instance_provider.py

@@ -0,0 +1,22 @@
+# Generated by Django 5.0.9 on 2024-09-16 19:49
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ocw', '0012_rename_vault_namespace_instance_namespace_and_more'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='instance',
+            name='notified',
+        ),
+        migrations.AlterField(
+            model_name='instance',
+            name='provider',
+            field=models.CharField(choices=[('GCE', 'Google'), ('EC2', 'EC2'), ('AZURE', 'Azure')], max_length=8),
+        ),
+    ]

ocw/models.py

@@ -32,7 +32,6 @@ class Instance(models.Model):
     instance_id = models.CharField(max_length=200)
     region = models.CharField(max_length=64, default='')
     namespace = models.CharField(max_length=64, default='')
-    notified = models.BooleanField(default=False)
     ignore = models.BooleanField(default=False)
     TAG_IGNORE = 'pcw_ignore'
 

ocw/tables.py

@@ -33,19 +33,6 @@ def render(self, record):
         return ""
 
 
-class MailColumn(tables.BooleanColumn):
-    @property
-    def header(self):
-        return ""
-
-    def render(self, value, record, bound_column):
-        value = self._get_bool_value(record, value, bound_column)
-        if value:
-            return format_html('<img alt="Email notification was send" src="{}" width=20 height=20/>',
-                               static('img/notified.png'))
-        return ""
-
-
 class TagsColumn(tables.TemplateColumn):
 
     def __init__(self, template_name=None, **extra):
@@ -58,7 +45,6 @@ def header(self):
 
 class InstanceTable(tables.Table):
     tags = TagsColumn()
-    notified = MailColumn()
     type = tables.Column(accessor=A('get_type'))
     first_seen = tables.DateTimeColumn(format='M d Y')
     last_seen = tables.DateTimeColumn(format='M d Y')

tests/test_db.py

@@ -179,16 +179,12 @@ def mocked__update_provider(arg1, arg2, arg3):
     def mocked_auto_delete_instances():
         call_stack.append('auto_delete_instances')
 
-    def mocked_send_leftover_notification():
-        call_stack.append('send_leftover_notification')
-
     monkeypatch.setattr('ocw.lib.db._update_provider', mocked__update_provider)
     monkeypatch.setattr('ocw.lib.db.auto_delete_instances', mocked_auto_delete_instances)
-    monkeypatch.setattr('ocw.lib.db.send_leftover_notification', mocked_send_leftover_notification)
 
     update_run()
 
-    assert call_stack == ['_update_provider', 'auto_delete_instances', 'send_leftover_notification']
+    assert call_stack == ['_update_provider', 'auto_delete_instances']
 
 
 def test_update_run_update_provider_throw_exception(update_run_patch, monkeypatch):
@@ -202,20 +198,16 @@ def mocked__update_provider(arg1, arg2, arg3):
     def mocked_auto_delete_instances():
         call_stack.append('auto_delete_instances')
 
-    def mocked_send_leftover_notification():
-        call_stack.append('send_leftover_notification')
-
     def mocked_send_mail(arg1, arg2):
         call_stack.append('send_mail')
 
     monkeypatch.setattr('ocw.lib.db._update_provider', mocked__update_provider)
     monkeypatch.setattr('ocw.lib.db.auto_delete_instances', mocked_auto_delete_instances)
-    monkeypatch.setattr('ocw.lib.db.send_leftover_notification', mocked_send_leftover_notification)
     monkeypatch.setattr('ocw.lib.db.send_mail', mocked_send_mail)
 
     update_run()
 
-    assert call_stack == ['_update_provider', 'send_mail', 'auto_delete_instances', 'send_leftover_notification']
+    assert call_stack == ['_update_provider', 'send_mail', 'auto_delete_instances']
 
 
 def test_delete_instances_azure(monkeypatch):