openstack/nova
Code Issues Proposed changes

Merge "nova-status: don't coerce version numbers to floats for comparison"

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Jenkins 2017-03-20 13:56:10 +00:00 committed by Gerrit Code Review
commit f4eb7a0e23
2 changed files with 24 additions and 2 deletions
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6
nova/cmd/status.py
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@ -28,6 +28,7 @@ import traceback
from keystoneauth1 import exceptions as ks_exc
from keystoneauth1 import loading as keystone
from oslo_config import cfg
import pkg_resources
import prettytable
from sqlalchemy import func as sqlfunc
from sqlalchemy import MetaData, Table, select
@ -200,10 +201,11 @@ class UpgradeCommands(object):
"""
try:
versions = self._placement_get("/")
max_version = float(versions["versions"][0]["max_version"])
max_version = pkg_resources.parse_version(
versions["versions"][0]["max_version"])
# NOTE(rpodolyaka): 1.4 is needed in Pike and further as
# FilterScheduler will no longer fall back to not using placement
needs_version = 1.4
needs_version = pkg_resources.parse_version("1.4")
if max_version < needs_version:
msg = (_('Placement API version %(needed)s needed, '
'you have %(current)s.') %

20
nova/tests/unit/cmd/test_status.py
View File

@ -218,6 +218,26 @@ class TestPlacementCheck(test.NoDBTestCase):
res = self.cmd._check_placement()
self.assertEqual(status.UpgradeCheckCode.SUCCESS, res.code)
@mock.patch.object(status.UpgradeCommands, "_placement_get")
def test_version_comparison_does_not_use_floats(self, get):
# NOTE(rpodolyaka): previously _check_placement() coerced the version
# numbers to floats prior to comparison, that would lead to failures
# in cases like float('1.10') < float('1.4'). As we require 1.4+ now,
# the _check_placement() call below will assert that version comparison
# continues to work correctly when Placement API versions 1.10
# (or newer) is released
get.return_value = {
"versions": [
{
"min_version": "1.0",
"max_version": "1.10",
"id": "v1.0"
}
]
}
res = self.cmd._check_placement()
self.assertEqual(status.UpgradeCheckCode.SUCCESS, res.code)
@mock.patch.object(status.UpgradeCommands, "_placement_get")
def test_invalid_version(self, get):
get.return_value = {