Fix rendering of hdparm.conf file
Use the charmhelpers.core.templating template rendering logic instead of the charmhelpers.core.services template rendering logic when generating the hdparm.conf file. Change-Id: I4b9718e49336d72501585279c0fc0cfcd465abb2 Closes-Bug: #1660240
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@ -28,6 +28,7 @@ import pyudev
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from datetime import datetime
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from charmhelpers.core import hookenv
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from charmhelpers.core import templating
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from charmhelpers.core.host import (
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chownr,
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cmp_pkgrevno,
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@ -46,7 +47,6 @@ from charmhelpers.core.hookenv import (
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DEBUG,
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ERROR,
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WARNING)
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from charmhelpers.core.services import render_template
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from charmhelpers.fetch import (
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apt_cache,
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add_source, apt_install, apt_update)
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@ -64,6 +64,7 @@ from charmhelpers.contrib.openstack.utils import (
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CEPH_BASE_DIR = os.path.join(os.sep, 'var', 'lib', 'ceph')
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OSD_BASE_DIR = os.path.join(CEPH_BASE_DIR, 'osd')
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HDPARM_FILE = os.path.join(os.sep, 'etc', 'hdparm.conf')
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LEADER = 'leader'
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PEON = 'peon'
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@ -229,14 +230,21 @@ def persist_settings(settings_dict):
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The settings_dict should be in the form of {"uuid": {"key":"value"}}
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:param settings_dict: dict of settings to save
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"""
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hdparm_path = os.path.join(os.sep, 'etc', 'hdparm.conf')
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if not settings_dict:
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return
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try:
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with open(hdparm_path, 'w') as hdparm:
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hdparm.write(render_template('hdparm.conf', settings_dict))
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templating.render(source='hdparm.conf', target=HDPARM_FILE,
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context=settings_dict)
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except IOError as err:
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log("Unable to open {path} because of error: {error}".format(
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path=hdparm_path,
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error=err.message), level=ERROR)
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path=HDPARM_FILE, error=err.message), level=ERROR)
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except Exception as e:
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# The templating.render can raise a jinja2 exception if the
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# template is not found. Rather than polluting the import
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# space of this charm, simply catch Exception
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log('Unable to render {path} due to error: {error}'.format(
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path=HDPARM_FILE, error=e.message), level=ERROR)
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def set_max_sectors_kb(dev_name, max_sectors_size):
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@ -0,0 +1,43 @@
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# Copyright 2017 Canonical Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import ceph
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import mock
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import unittest
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class DiskTuningTestCase(unittest.TestCase):
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def setUp(self):
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super(DiskTuningTestCase, self).setUp()
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@mock.patch.object(ceph, 'templating')
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def test_persist_settings(self, _templating):
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renderer = _templating.render
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settings = {
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'drive_settings': {
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'some-random-uuid': {
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'read_ahead_sect': 256
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}
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}
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}
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ceph.persist_settings(settings)
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renderer.assert_called_once_with(source='hdparm.conf',
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target=ceph.HDPARM_FILE,
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context=settings)
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@mock.patch.object(ceph, 'templating')
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def test_persist_settings_empty_dict(self, _templating):
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renderer = _templating.render
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ceph.persist_settings({})
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assert not renderer.called, 'renderer should not have been called'
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