mirror of
https://github.com/ceph/ceph
synced 2024-12-13 06:57:21 +00:00
139 lines
4.2 KiB
Python
139 lines
4.2 KiB
Python
"""
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Mount/unmount a ``kernel`` client.
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"""
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import contextlib
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import logging
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from teuthology.misc import deep_merge
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from teuthology.orchestra.run import CommandFailedError
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from teuthology import misc
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from teuthology.contextutil import MaxWhileTries
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from cephfs.kernel_mount import KernelMount
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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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"""
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Mount/unmount a ``kernel`` client.
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The config is optional and defaults to mounting on all clients. If
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a config is given, it is expected to be a list of clients to do
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this operation on. This lets you e.g. set up one client with
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``ceph-fuse`` and another with ``kclient``.
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Example that mounts all clients::
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tasks:
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- ceph:
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- kclient:
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- interactive:
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Example that uses both ``kclient` and ``ceph-fuse``::
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tasks:
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- ceph:
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- ceph-fuse: [client.0]
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- kclient: [client.1]
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- interactive:
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Pass a dictionary instead of lists to specify per-client config:
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tasks:
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-kclient:
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client.0:
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debug: true
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:param ctx: Context
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:param config: Configuration
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"""
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log.info('Mounting kernel clients...')
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assert config is None or isinstance(config, list) or isinstance(config, dict), \
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"task kclient got invalid config"
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if config is None:
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config = ['client.{id}'.format(id=id_)
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for id_ in misc.all_roles_of_type(ctx.cluster, 'client')]
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if isinstance(config, list):
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client_roles = config
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config = dict([r, dict()] for r in client_roles)
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elif isinstance(config, dict):
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client_roles = filter(lambda x: 'client.' in x, config.keys())
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else:
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raise ValueError("Invalid config object: {0} ({1})".format(config, config.__class__))
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# config has been converted to a dict by this point
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overrides = ctx.config.get('overrides', {})
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deep_merge(config, overrides.get('kclient', {}))
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clients = list(misc.get_clients(ctx=ctx, roles=client_roles))
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test_dir = misc.get_testdir(ctx)
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# Assemble mon addresses
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remotes_and_roles = ctx.cluster.remotes.items()
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roles = [roles for (remote_, roles) in remotes_and_roles]
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ips = [remote_.ssh.get_transport().getpeername()[0]
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for (remote_, _) in remotes_and_roles]
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mons = misc.get_mons(roles, ips).values()
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mounts = {}
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for id_, remote in clients:
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client_config = config.get("client.%s" % id_)
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if client_config is None:
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client_config = {}
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if config.get("disabled", False) or not client_config.get('mounted', True):
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continue
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kernel_mount = KernelMount(
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ctx,
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mons,
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test_dir,
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id_,
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remote,
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ctx.teuthology_config.get('ipmi_user', None),
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ctx.teuthology_config.get('ipmi_password', None),
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ctx.teuthology_config.get('ipmi_domain', None)
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)
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mounts[id_] = kernel_mount
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if client_config.get('debug', False):
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remote.run(args=["sudo", "bash", "-c", "echo 'module ceph +p' > /sys/kernel/debug/dynamic_debug/control"])
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remote.run(args=["sudo", "bash", "-c", "echo 'module libceph +p' > /sys/kernel/debug/dynamic_debug/control"])
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kernel_mount.mount()
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def umount_all():
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log.info('Unmounting kernel clients...')
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forced = False
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for mount in mounts.values():
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if mount.is_mounted():
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try:
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mount.umount()
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except (CommandFailedError, MaxWhileTries):
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log.warn("Ordinary umount failed, forcing...")
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forced = True
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mount.umount_wait(force=True)
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return forced
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ctx.mounts = mounts
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try:
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yield mounts
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except:
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umount_all() # ignore forced retval, we are already in error handling
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finally:
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forced = umount_all()
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if forced:
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# The context managers within the kclient manager worked (i.e.
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# the test workload passed) but for some reason we couldn't
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# umount, so turn this into a test failure.
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raise RuntimeError("Kernel mounts did not umount cleanly")
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