X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=src%2Fceph%2Fqa%2Ftasks%2Fceph_fuse.py;fp=src%2Fceph%2Fqa%2Ftasks%2Fceph_fuse.py;h=c9d83549668208147e1f99ad67b87fd26b9d8a78;hb=812ff6ca9fcd3e629e49d4328905f33eee8ca3f5;hp=0000000000000000000000000000000000000000;hpb=15280273faafb77777eab341909a3f495cf248d9;p=stor4nfv.git diff --git a/src/ceph/qa/tasks/ceph_fuse.py b/src/ceph/qa/tasks/ceph_fuse.py new file mode 100644 index 0000000..c9d8354 --- /dev/null +++ b/src/ceph/qa/tasks/ceph_fuse.py @@ -0,0 +1,145 @@ +""" +Ceph FUSE client task +""" + +import contextlib +import logging + +from teuthology import misc as teuthology +from cephfs.fuse_mount import FuseMount + +log = logging.getLogger(__name__) + + +def get_client_configs(ctx, config): + """ + Get a map of the configuration for each FUSE client in the configuration by + combining the configuration of the current task with any global overrides. + + :param ctx: Context instance + :param config: configuration for this task + :return: dict of client name to config or to None + """ + if config is None: + config = dict(('client.{id}'.format(id=id_), None) + for id_ in teuthology.all_roles_of_type(ctx.cluster, 'client')) + elif isinstance(config, list): + config = dict((name, None) for name in config) + + overrides = ctx.config.get('overrides', {}) + teuthology.deep_merge(config, overrides.get('ceph-fuse', {})) + + return config + + +@contextlib.contextmanager +def task(ctx, config): + """ + Mount/unmount a ``ceph-fuse`` client. + + The config is optional and defaults to mounting on all clients. If + a config is given, it is expected to be a list of clients to do + this operation on. This lets you e.g. set up one client with + ``ceph-fuse`` and another with ``kclient``. + + Example that mounts all clients:: + + tasks: + - ceph: + - ceph-fuse: + - interactive: + + Example that uses both ``kclient` and ``ceph-fuse``:: + + tasks: + - ceph: + - ceph-fuse: [client.0] + - kclient: [client.1] + - interactive: + + Example that enables valgrind: + + tasks: + - ceph: + - ceph-fuse: + client.0: + valgrind: [--tool=memcheck, --leak-check=full, --show-reachable=yes] + - interactive: + + Example that stops an already-mounted client: + + :: + + tasks: + - ceph: + - ceph-fuse: [client.0] + - ... do something that requires the FS mounted ... + - ceph-fuse: + client.0: + mounted: false + - ... do something that requires the FS unmounted ... + + Example that adds more generous wait time for mount (for virtual machines): + + tasks: + - ceph: + - ceph-fuse: + client.0: + mount_wait: 60 # default is 0, do not wait before checking /sys/ + mount_timeout: 120 # default is 30, give up if /sys/ is not populated + - interactive: + + :param ctx: Context + :param config: Configuration + """ + log.info('Mounting ceph-fuse clients...') + + testdir = teuthology.get_testdir(ctx) + config = get_client_configs(ctx, config) + + # List clients we will configure mounts for, default is all clients + clients = list(teuthology.get_clients(ctx=ctx, roles=filter(lambda x: 'client.' in x, config.keys()))) + + all_mounts = getattr(ctx, 'mounts', {}) + mounted_by_me = {} + + # Construct any new FuseMount instances + for id_, remote in clients: + client_config = config.get("client.%s" % id_) + if client_config is None: + client_config = {} + + if id_ not in all_mounts: + fuse_mount = FuseMount(client_config, testdir, id_, remote) + all_mounts[id_] = fuse_mount + else: + # Catch bad configs where someone has e.g. tried to use ceph-fuse and kcephfs for the same client + assert isinstance(all_mounts[id_], FuseMount) + + if not config.get("disabled", False) and client_config.get('mounted', True): + mounted_by_me[id_] = all_mounts[id_] + + ctx.mounts = all_mounts + + # Mount any clients we have been asked to (default to mount all) + for mount in mounted_by_me.values(): + mount.mount() + + for mount in mounted_by_me.values(): + mount.wait_until_mounted() + + # Umount any pre-existing clients that we have not been asked to mount + for client_id in set(all_mounts.keys()) - set(mounted_by_me.keys()): + mount = all_mounts[client_id] + if mount.is_mounted(): + mount.umount_wait() + + try: + yield all_mounts + finally: + log.info('Unmounting ceph-fuse clients...') + + for mount in mounted_by_me.values(): + # Conditional because an inner context might have umounted it + if mount.is_mounted(): + mount.umount_wait()