mirror of
https://github.com/ceph/ceph
synced 2024-12-24 20:33:27 +00:00
107 lines
3.8 KiB
Python
107 lines
3.8 KiB
Python
import contextlib
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import logging
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from io import StringIO
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from teuthology import misc as teuthology
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from teuthology import contextutil
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from teuthology.orchestra import run
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log = logging.getLogger(__name__)
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@contextlib.contextmanager
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def task(ctx, config):
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log.info('Setting up nvme_loop on scratch devices...')
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host = 'hostnqn'
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port = '1'
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devs_by_remote = {}
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old_scratch_by_remote = {}
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for remote, roles in ctx.cluster.remotes.items():
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if remote.is_container:
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continue
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devs = teuthology.get_scratch_devices(remote)
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devs_by_remote[remote] = devs
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base = '/sys/kernel/config/nvmet'
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remote.run(
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args=[
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'grep', '^nvme_loop', '/proc/modules', run.Raw('||'),
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'sudo', 'modprobe', 'nvme_loop',
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run.Raw('&&'),
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'sudo', 'mkdir', '-p', f'{base}/hosts/{host}',
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run.Raw('&&'),
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'sudo', 'mkdir', '-p', f'{base}/ports/{port}',
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run.Raw('&&'),
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'echo', 'loop', run.Raw('|'),
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'sudo', 'tee', f'{base}/ports/{port}/addr_trtype',
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]
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)
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for dev in devs:
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short = dev.split('/')[-1]
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log.info(f'Connecting nvme_loop {remote.shortname}:{dev}...')
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remote.run(
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args=[
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'sudo', 'mkdir', '-p', f'{base}/subsystems/{short}',
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run.Raw('&&'),
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'echo', '1', run.Raw('|'),
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'sudo', 'tee', f'{base}/subsystems/{short}/attr_allow_any_host',
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run.Raw('&&'),
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'sudo', 'mkdir', '-p', f'{base}/subsystems/{short}/namespaces/1',
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run.Raw('&&'),
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'echo', '-n', dev, run.Raw('|'),
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'sudo', 'tee', f'{base}/subsystems/{short}/namespaces/1/device_path',
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run.Raw('&&'),
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'echo', '1', run.Raw('|'),
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'sudo', 'tee', f'{base}/subsystems/{short}/namespaces/1/enable',
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run.Raw('&&'),
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'sudo', 'ln', '-s', f'{base}/subsystems/{short}',
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f'{base}/ports/{port}/subsystems/{short}',
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run.Raw('&&'),
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'sudo', 'nvme', 'connect', '-t', 'loop', '-n', short, '-q', host,
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]
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)
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# identify nvme_loops devices
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old_scratch_by_remote[remote] = remote.read_file('/scratch_devs')
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with contextutil.safe_while(sleep=1, tries=15) as proceed:
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while proceed():
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p = remote.run(args=['sudo', 'nvme', 'list'], stdout=StringIO())
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new_devs = []
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for line in p.stdout.getvalue().splitlines():
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dev, _, vendor = line.split()[0:3]
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if dev.startswith('/dev/') and vendor == 'Linux':
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new_devs.append(dev)
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log.info(f'new_devs {new_devs}')
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assert len(new_devs) <= len(devs)
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if len(new_devs) == len(devs):
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break
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remote.write_file(
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path='/scratch_devs',
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data='\n'.join(new_devs) + '\n',
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sudo=True
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)
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try:
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yield
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finally:
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for remote, devs in devs_by_remote.items():
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if remote.is_container:
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continue
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for dev in devs:
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short = dev.split('/')[-1]
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log.info(f'Disconnecting nvme_loop {remote.shortname}:{dev}...')
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remote.run(
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args=[
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'sudo', 'nvme', 'disconnect', '-n', short
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],
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check_status=False,
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)
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remote.write_file(
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path='/scratch_devs',
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data=old_scratch_by_remote[remote],
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sudo=True
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)
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