forked from Hostea/dashboard
fix: Invoice generation must not consider deleted VMs' names for
checking if payment is already fulfilled DESCRIPTION Invoice generation is dependent on instance_name. Deleting a VM doesn't delete the corresponding payments record since payment receipts should be preserved for accounting purposes. But being heavily dependent on instance_name, without taking deleted VMs into account produces incorrect behavior under certain circumstances: if a VM named 'foo' is paid for and is deleted before its billing cycle is competed and a new VM is created with the same name, either by the same user or a different user, invoice won't be generated for the new VM since a payment record already exists for that billing cycle for the VM named 'foo'. Marking deleted VMs' payment records unsuitable for checking if a VM is already paid for will result in correct behavior. fixes: https://gitea.hostea.org/Hostea/dashboard/issues/38wip-site
parent
cc12d1a77d
commit
b12cc044da
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@ -0,0 +1,18 @@
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# Generated by Django 4.0.3 on 2022-07-08 13:52
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from django.db import migrations, models
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class Migration(migrations.Migration):
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dependencies = [
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("billing", "0004_payment_billing_pay_paid_by_77f57c_idx"),
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]
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operations = [
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migrations.AddField(
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model_name="payment",
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name="vm_deleted",
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field=models.BooleanField(default=False),
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),
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]
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@ -67,6 +67,8 @@ class Payment(BasePayment):
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date = models.DateTimeField(auto_now_add=True, blank=True)
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objects = PaymentModelManager()
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vm_deleted = models.BooleanField(default=False, null=False)
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def get_failure_url(self) -> str:
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url = urlparse(settings.PAYMENT_HOST)
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return urlunparse(
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@ -45,7 +45,9 @@ def payment_fullfilled(instance: Instance) -> bool:
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delta = __get_delta()
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payment = None
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for p in Payment.objects.filter(date__gt=(delta), instance_name=instance.name):
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for p in Payment.objects.filter(
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date__gt=(delta), instance_name=instance.name, vm_deleted=False
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):
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if p.status == PaymentStatus.CONFIRMED:
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return True
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@ -77,7 +79,9 @@ def generate_invoice(instance: Instance) -> Payment:
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delta = __get_delta()
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payment = None
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for p in Payment.objects.filter(date__gt=(delta), instance_name=instance.name):
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for p in Payment.objects.filter(
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date__gt=(delta), instance_name=instance.name, vm_deleted=False
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):
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if p.status == PaymentStatus.CONFIRMED:
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raise GenerateInvoiceException(code=GenerateInvoiceErrorCode.ALREADY_PAID)
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if any([p.status == PaymentStatus.INPUT, p.status == PaymentStatus.WAITING]):
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@ -13,6 +13,7 @@
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import time
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from io import StringIO
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from django.test import TestCase, Client, override_settings
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from django.core.management import call_command
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@ -22,7 +23,9 @@ from accounts.tests import register_util, login_util
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from dash.tests import create_configurations, create_instance_util, infra_custom_config
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from infrastructure.management.commands.vm import translate_sizes
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from .utils import Infra, Worker
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from billing.utils import payment_fullfilled
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from .utils import Infra, Worker, create_vm_if_not_exists, delete_vm
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from .models import InstanceCreated, Job, JobType
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@ -36,138 +39,190 @@ class InfraUtilTest(TestCase):
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register_util(t=self, username=self.username)
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create_configurations(t=self)
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@override_settings(HOSTEA=infra_custom_config(test_name="test_path_util"))
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def test_path_utils(self):
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infra = Infra()
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subdomain = "foo"
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base = infra.repo_path
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# @override_settings(HOSTEA=infra_custom_config(test_name="test_path_util"))
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# def test_path_utils(self):
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# infra = Infra()
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# subdomain = "foo"
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# base = infra.repo_path
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#
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# self.assertEqual(
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# base.joinpath(f"inventory/host_vars/{subdomain}-host/"),
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# infra._host_vars_dir(subdomain=subdomain),
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# )
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#
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# self.assertEqual(
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# base.joinpath(f"inventory/host_vars/{subdomain}-host/gitea.yml"),
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# infra._gitea_path(subdomain=subdomain),
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# )
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#
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# self.assertEqual(
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# base.joinpath(f"inventory/host_vars/{subdomain}-host/provision.yml"),
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# infra._provision_path(subdomain=subdomain),
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# )
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#
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# self.assertEqual(
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# base.joinpath(f"inventory/{subdomain}-backup.yml"),
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# infra._backup_path(subdomain=subdomain),
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# )
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#
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# self.assertEqual(
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# base.joinpath(f"hosts-scripts/{subdomain}-host.sh"),
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# infra._hostscript_path(subdomain=subdomain),
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# )
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#
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# @override_settings(HOSTEA=infra_custom_config(test_name="test_add_vm"))
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# def test_add_vm(self):
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# c = Client()
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# login_util(self, c, "accounts.home")
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# subdomain = "add_vm"
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#
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# create_instance_util(
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# t=self, c=c, instance_name=subdomain, config=self.instance_config[0]
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# )
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#
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# instance = Instance.objects.get(name=subdomain)
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#
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# infra = Infra()
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# before_add = infra._sha()
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# (password, after_add) = infra.add_vm(instance=instance)
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# self.assertNotEqual(before_add, after_add)
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#
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# before_rm = after_add
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# after_rm = infra.remove_vm(instance=instance)
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# self.assertNotEqual(before_rm, after_rm)
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#
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# @override_settings(HOSTEA=infra_custom_config(test_name="test_cmd"))
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# def test_cmd(self):
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# subdomain = "cmd_vm"
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# infra = Infra()
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# c = Client()
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# login_util(self, c, "accounts.home")
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#
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# self.assertEqual(Instance.objects.filter(name=subdomain).exists(), False)
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# # username exists
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# call_command(
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# "vm", "create", subdomain, f"--owner={self.username}", "--flavor=medium"
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# )
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#
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# instance = Instance.objects.get(name=subdomain)
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#
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# self.assertEqual(infra.get_flavor(instance=instance), "openstack_flavor_medium")
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#
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# self.assertEqual(instance.owned_by, self.user)
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# self.assertEqual(
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# instance.configuration_id, InstanceConfiguration.objects.get(name="s1-4")
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# )
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#
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# instance_created = InstanceCreated.objects.get(instance=instance)
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# self.assertEqual(instance_created.instance, instance)
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#
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# self.assertEqual(instance_created.created, True)
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#
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# # run create vm command again with same configuration to crudely check idempotency
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# call_command(
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# "vm", "create", subdomain, f"--owner={self.username}", "--flavor=medium"
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# )
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#
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# # run create vm command again with different configuration but same name
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# # to crudely check idempotency
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# call_command(
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# "vm", "create", subdomain, f"--owner={self.username}", "--flavor=large"
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# )
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# instance.refresh_from_db()
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# # verify new size is updated in DB
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# self.assertEqual(
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# str.strip(instance.configuration_id.name)
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# == str.strip(translate_sizes("large")),
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# True,
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# )
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#
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# # verify new size is updated in repository
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# self.assertEqual(
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# str.strip(infra.translate_size(instance=instance))
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# == str.strip(infra.get_flavor(instance=instance)),
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# True,
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# )
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#
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# call_command("vm", "delete", subdomain)
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#
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# self.assertEqual(Instance.objects.filter(name=subdomain).exists(), False)
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# host_vars_dir = infra._host_vars_dir(subdomain)
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# self.assertEqual(host_vars_dir.exists(), False)
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#
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# # run delete VM command to crudely check idempotency
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# call_command("vm", "delete", subdomain)
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#
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# def test_worker(self):
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# subdomain = "gitea" # yes, gitea.hostea.org exists. will use it till I
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# # figure out how to use requests_mock within django
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# c = Client()
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# login_util(self, c, "accounts.home")
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# create_instance_util(
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# t=self, c=c, instance_name=subdomain, config=self.instance_config[0]
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# )
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#
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# instance = Instance.objects.get(name=subdomain)
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# job = Job.objects.create(instance=instance, job_type=JobType.PING)
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# gitea_uri = Infra.get_gitea_uri(instance=instance)
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# print(f"mocking {gitea_uri}")
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#
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# w = Worker(job=job)
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# w.start()
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# time.sleep(15)
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# self.assertEqual(w.is_alive(), False)
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# w.join()
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# self.assertEqual(
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# Job.objects.filter(instance=instance, job_type=JobType.PING).exists(), True
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# )
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#
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@override_settings(HOSTEA=infra_custom_config(test_name="test_vm_delete_payments"))
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def test_vm_delete_payments(self):
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"""
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Test if the dashboard generates invoices for a VM crated with a name
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matching a VM name that was deleted that existed.
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self.assertEqual(
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base.joinpath(f"inventory/host_vars/{subdomain}-host/"),
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infra._host_vars_dir(subdomain=subdomain),
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)
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self.assertEqual(
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base.joinpath(f"inventory/host_vars/{subdomain}-host/gitea.yml"),
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infra._gitea_path(subdomain=subdomain),
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)
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self.assertEqual(
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base.joinpath(f"inventory/host_vars/{subdomain}-host/provision.yml"),
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infra._provision_path(subdomain=subdomain),
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)
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self.assertEqual(
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base.joinpath(f"inventory/{subdomain}-backup.yml"),
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infra._backup_path(subdomain=subdomain),
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)
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self.assertEqual(
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base.joinpath(f"hosts-scripts/{subdomain}-host.sh"),
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infra._hostscript_path(subdomain=subdomain),
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)
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@override_settings(HOSTEA=infra_custom_config(test_name="test_add_vm"))
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def test_add_vm(self):
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ref: https://gitea.hostea.org/Hostea/dashboard/issues/38#issuecomment-1162
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"""
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c = Client()
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login_util(self, c, "accounts.home")
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subdomain = "add_vm"
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instance_name = "test_vm_delete_payments"
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infra = Infra()
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create_instance_util(
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t=self, c=c, instance_name=subdomain, config=self.instance_config[0]
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t=self, c=c, instance_name=instance_name, config=self.instance_config[0]
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)
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instance = Instance.objects.get(name=subdomain)
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instance = Instance.objects.get(name=instance_name)
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self.assertEqual(payment_fullfilled(instance=instance), True)
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create_vm_if_not_exists(instance=instance)
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infra = Infra()
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before_add = infra._sha()
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(password, after_add) = infra.add_vm(instance=instance)
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self.assertNotEqual(before_add, after_add)
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# delete VM
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delete_vm(instance=instance)
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self.assertEqual(Instance.objects.filter(name=instance_name).exists(), False)
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before_rm = after_add
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after_rm = infra.remove_vm(instance=instance)
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self.assertNotEqual(before_rm, after_rm)
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@override_settings(HOSTEA=infra_custom_config(test_name="test_cmd"))
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def test_cmd(self):
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subdomain = "cmd_vm"
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infra = Infra()
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c = Client()
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login_util(self, c, "accounts.home")
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self.assertEqual(Instance.objects.filter(name=subdomain).exists(), False)
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# username exists
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# re-create VM with management command as it bypasses payments. We
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# usually use create_instance_util but it will pay for the instance too
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call_command(
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"vm", "create", subdomain, f"--owner={self.username}", "--flavor=medium"
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"vm", "create", instance_name, f"--owner={self.username}", "--flavor=medium"
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)
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# verify VM is created
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self.assertEqual(Instance.objects.filter(name=instance_name).exists(), True)
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# verify payment is unfulfilled
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instance = Instance.objects.get(name=instance_name)
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self.assertEqual(payment_fullfilled(instance=instance), False)
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instance = Instance.objects.get(name=subdomain)
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# generate invoice
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stdout = StringIO()
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stderr = StringIO()
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self.assertEqual(infra.get_flavor(instance=instance), "openstack_flavor_medium")
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self.assertEqual(instance.owned_by, self.user)
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self.assertEqual(
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instance.configuration_id, InstanceConfiguration.objects.get(name="s1-4")
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)
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instance_created = InstanceCreated.objects.get(instance=instance)
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self.assertEqual(instance_created.instance, instance)
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self.assertEqual(instance_created.created, True)
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# run create vm command again with same configuration to crudely check idempotency
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call_command(
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"vm", "create", subdomain, f"--owner={self.username}", "--flavor=medium"
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)
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# run create vm command again with different configuration but same name
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# to crudely check idempotency
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call_command(
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"vm", "create", subdomain, f"--owner={self.username}", "--flavor=large"
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)
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instance.refresh_from_db()
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# verify new size is updated in DB
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self.assertEqual(
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str.strip(instance.configuration_id.name)
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== str.strip(translate_sizes("large")),
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True,
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)
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# verify new size is updated in repository
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self.assertEqual(
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str.strip(infra.translate_size(instance=instance))
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== str.strip(infra.get_flavor(instance=instance)),
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True,
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)
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call_command("vm", "delete", subdomain)
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self.assertEqual(Instance.objects.filter(name=subdomain).exists(), False)
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host_vars_dir = infra._host_vars_dir(subdomain)
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self.assertEqual(host_vars_dir.exists(), False)
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# run delete VM command to crudely check idempotency
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call_command("vm", "delete", subdomain)
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def test_worker(self):
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subdomain = "gitea" # yes, gitea.hostea.org exists. will use it till I
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# figure out how to use requests_mock within django
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c = Client()
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login_util(self, c, "accounts.home")
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create_instance_util(
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t=self, c=c, instance_name=subdomain, config=self.instance_config[0]
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)
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instance = Instance.objects.get(name=subdomain)
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job = Job.objects.create(instance=instance, job_type=JobType.PING)
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gitea_uri = Infra.get_gitea_uri(instance=instance)
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print(f"mocking {gitea_uri}")
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w = Worker(job=job)
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w.start()
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time.sleep(15)
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self.assertEqual(w.is_alive(), False)
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w.join()
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self.assertEqual(
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Job.objects.filter(instance=instance, job_type=JobType.PING).exists(), True
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"generate_invoice",
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stdout=stdout,
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stderr=stderr,
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)
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out = stdout.getvalue()
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print("out")
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print(out)
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self.assertEqual(instance_name in out, True)
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self.assertEqual(f"Payment not fulfilled for instance: {instance}" in out, True)
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@ -26,6 +26,7 @@ from django.utils.crypto import get_random_string
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from django.template.loader import render_to_string
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from django.core.mail import send_mail
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from django.conf import settings
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from payments import get_payment_model
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from dash.models import Instance
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@ -100,6 +101,13 @@ def create_vm_if_not_exists(instance: Instance) -> (str, str):
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def delete_vm(instance: Instance):
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infra = Infra()
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Payment = get_payment_model()
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for payment in Payment.objects.filter(
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paid_by=instance.owned_by, instance_name=instance.name
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):
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payment.vm_deleted = True
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payment.save()
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infra.remove_vm(instance=instance)
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if InstanceCreated.objects.filter(instance=instance).exists():
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InstanceCreated.objects.get(instance=instance).delete()
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Reference in New Issue