mirror of
https://github.com/ceph/ceph
synced 2024-12-13 23:17:07 +00:00
178 lines
4.9 KiB
Python
178 lines
4.9 KiB
Python
"""
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Task to handle tgt
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Assumptions made:
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The ceph-extras tgt package may need to get installed.
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The open-iscsi package needs to get installed.
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"""
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import logging
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import contextlib
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from teuthology import misc as teuthology
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from teuthology import contextutil
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log = logging.getLogger(__name__)
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@contextlib.contextmanager
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def start_tgt_remotes(ctx, start_tgtd):
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"""
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This subtask starts up a tgtd on the clients specified
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"""
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remotes = ctx.cluster.only(teuthology.is_type('client')).remotes
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tgtd_list = []
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for rem, roles in remotes.iteritems():
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for _id in roles:
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if _id in start_tgtd:
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if not rem in tgtd_list:
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tgtd_list.append(rem)
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size = ctx.config.get('image_size', 10240)
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rem.run(
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args=[
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'rbd',
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'create',
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'iscsi-image',
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'--size',
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str(size),
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])
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rem.run(
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args=[
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'sudo',
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'tgtadm',
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'--lld',
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'iscsi',
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'--mode',
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'target',
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'--op',
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'new',
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'--tid',
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'1',
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'--targetname',
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'rbd',
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])
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rem.run(
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args=[
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'sudo',
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'tgtadm',
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'--lld',
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'iscsi',
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'--mode',
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'logicalunit',
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'--op',
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'new',
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'--tid',
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'1',
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'--lun',
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'1',
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'--backing-store',
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'iscsi-image',
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'--bstype',
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'rbd',
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])
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rem.run(
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args=[
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'sudo',
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'tgtadm',
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'--lld',
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'iscsi',
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'--op',
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'bind',
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'--mode',
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'target',
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'--tid',
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'1',
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'-I',
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'ALL',
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])
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try:
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yield
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finally:
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for rem in tgtd_list:
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rem.run(
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args=[
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'sudo',
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'tgtadm',
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'--lld',
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'iscsi',
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'--mode',
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'target',
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'--op',
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'delete',
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'--force',
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'--tid',
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'1',
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])
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rem.run(
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args=[
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'rbd',
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'snap',
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'purge',
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'iscsi-image',
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])
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rem.run(
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args=[
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'sudo',
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'rbd',
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'rm',
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'iscsi-image',
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])
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@contextlib.contextmanager
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def task(ctx, config):
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"""
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Start up tgt.
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To start on on all clients::
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tasks:
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- ceph:
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- tgt:
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To start on certain clients::
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tasks:
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- ceph:
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- tgt: [client.0, client.3]
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or
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tasks:
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- ceph:
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- tgt:
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client.0:
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client.3:
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An image blocksize size can also be specified::
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tasks:
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- ceph:
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- tgt:
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image_size = 20480
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The general flow of things here is:
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1. Find clients on which tgt is supposed to run (start_tgtd)
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2. Remotely start up tgt daemon
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On cleanup:
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3. Stop tgt daemon
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The iscsi administration is handled by the iscsi task.
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"""
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if config:
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config = {key : val for key, val in config.items()
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if key.startswith('client')}
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# config at this point should only contain keys starting with 'client'
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start_tgtd = []
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remotes = ctx.cluster.only(teuthology.is_type('client')).remotes
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log.info(remotes)
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if not config:
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start_tgtd = ['client.{id}'.format(id=id_)
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for id_ in teuthology.all_roles_of_type(ctx.cluster, 'client')]
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else:
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start_tgtd = config
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log.info(start_tgtd)
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with contextutil.nested(
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lambda: start_tgt_remotes(ctx=ctx, start_tgtd=start_tgtd),):
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yield
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