openstack
/
kolla
Code Issues Proposed changes

Use immutable journal path rather than device name 

Device name is mutable when removed or added disks. Use uuid path or
lable is more robust.

Change-Id: I95cae6a9bf185d6f81126c42ac72d51b5ed659c2
Closes-Bug: #1710058
This commit is contained in:
Jeffrey Zhang 2017-08-11 12:13:38 +08:00
parent f1842f4fd9
commit 2b01b05444
1 changed files with 21 additions and 1 deletions
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22
docker/kolla-toolbox/find_disks.py
View File

@ -80,6 +80,15 @@ import re
import subprocess # nosec
PREFERRED_DEVICE_LINK_ORDER = [
'/dev/disk/by-uuid',
'/dev/disk/by-partuuid',
'/dev/disk/by-parttypeuuid',
'/dev/disk/by-label',
'/dev/disk/by-partlabel'
]
def get_id_part_entry_name(dev, use_udev):
if use_udev:
dev_name = dev.get('ID_PART_ENTRY_NAME', '')
@ -133,6 +142,14 @@ def find_disk(ct, name, match_mode, use_udev):
yield dev
def get_device_link(dev):
for preferred_link in PREFERRED_DEVICE_LINK_ORDER:
for link in dev.device_links:
if link.startswith(preferred_link):
return link
return dev.device_node
def extract_disk_info(ct, dev, name, use_udev):
if not dev:
return
@ -146,6 +163,9 @@ def extract_disk_info(ct, dev, name, use_udev):
re.sub(r'.*[^\d]', '', dev.device_node)
if is_dev_matched_by_name(dev, name, 'strict', use_udev):
kwargs['external_journal'] = False
# NOTE(jeffrey4l): this is only used for bootstrap osd stage and
# there is no journal partion at all. So it is OK to use
# device_node directly.
kwargs['journal'] = dev.device_node[:-1] + '2'
kwargs['journal_device'] = kwargs['device']
kwargs['journal_num'] = 2
@ -153,7 +173,7 @@ def extract_disk_info(ct, dev, name, use_udev):
kwargs['external_journal'] = True
journal_name = get_id_part_entry_name(dev, use_udev) + '_J'
for journal in find_disk(ct, journal_name, 'strict', use_udev):
kwargs['journal'] = journal.device_node
kwargs['journal'] = get_device_link(journal)
kwargs['journal_device'] = \
journal.find_parent('block').device_node
kwargs['journal_num'] = \