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-rw-r--r--qa/tasks/cephfs/mount.py1570
1 files changed, 1570 insertions, 0 deletions
diff --git a/qa/tasks/cephfs/mount.py b/qa/tasks/cephfs/mount.py
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index 000000000..4a8187406
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+++ b/qa/tasks/cephfs/mount.py
@@ -0,0 +1,1570 @@
+import hashlib
+import json
+import logging
+import datetime
+import os
+import re
+import time
+
+from io import StringIO
+from contextlib import contextmanager
+from textwrap import dedent
+from IPy import IP
+
+from teuthology.contextutil import safe_while
+from teuthology.misc import get_file, write_file
+from teuthology.orchestra import run
+from teuthology.orchestra.run import Raw
+from teuthology.exceptions import CommandFailedError, ConnectionLostError
+
+from tasks.cephfs.filesystem import Filesystem
+
+log = logging.getLogger(__name__)
+
+
+UMOUNT_TIMEOUT = 300
+
+
+class CephFSMount(object):
+ def __init__(self, ctx, test_dir, client_id, client_remote,
+ client_keyring_path=None, hostfs_mntpt=None,
+ cephfs_name=None, cephfs_mntpt=None, brxnet=None,
+ client_config=None):
+ """
+ :param test_dir: Global teuthology test dir
+ :param client_id: Client ID, the 'foo' in client.foo
+ :param client_keyring_path: path to keyring for given client_id
+ :param client_remote: Remote instance for the host where client will
+ run
+ :param hostfs_mntpt: Path to directory on the FS on which Ceph FS will
+ be mounted
+ :param cephfs_name: Name of Ceph FS to be mounted
+ :param cephfs_mntpt: Path to directory inside Ceph FS that will be
+ mounted as root
+ """
+ self.ctx = ctx
+ self.test_dir = test_dir
+
+ self._verify_attrs(client_id=client_id,
+ client_keyring_path=client_keyring_path,
+ hostfs_mntpt=hostfs_mntpt, cephfs_name=cephfs_name,
+ cephfs_mntpt=cephfs_mntpt)
+
+ if client_config is None:
+ client_config = {}
+ self.client_config = client_config
+
+ self.cephfs_name = cephfs_name
+ self.client_id = client_id
+ self.client_keyring_path = client_keyring_path
+ self.client_remote = client_remote
+ self.cluster_name = 'ceph' # TODO: use config['cluster']
+ self.fs = None
+
+ if cephfs_mntpt is None and client_config.get("mount_path"):
+ self.cephfs_mntpt = client_config.get("mount_path")
+ log.info(f"using client_config[\"cephfs_mntpt\"] = {self.cephfs_mntpt}")
+ else:
+ self.cephfs_mntpt = cephfs_mntpt
+ log.info(f"cephfs_mntpt = {self.cephfs_mntpt}")
+
+ if hostfs_mntpt is None and client_config.get("mountpoint"):
+ self.hostfs_mntpt = client_config.get("mountpoint")
+ log.info(f"using client_config[\"hostfs_mntpt\"] = {self.hostfs_mntpt}")
+ elif hostfs_mntpt is not None:
+ self.hostfs_mntpt = hostfs_mntpt
+ else:
+ self.hostfs_mntpt = os.path.join(self.test_dir, f'mnt.{self.client_id}')
+ self.hostfs_mntpt_dirname = os.path.basename(self.hostfs_mntpt)
+ log.info(f"hostfs_mntpt = {self.hostfs_mntpt}")
+
+ self._netns_name = None
+ self.nsid = -1
+ if brxnet is None:
+ self.ceph_brx_net = '192.168.0.0/16'
+ else:
+ self.ceph_brx_net = brxnet
+
+ self.test_files = ['a', 'b', 'c']
+
+ self.background_procs = []
+
+ # This will cleanup the stale netnses, which are from the
+ # last failed test cases.
+ @staticmethod
+ def cleanup_stale_netnses_and_bridge(remote):
+ p = remote.run(args=['ip', 'netns', 'list'],
+ stdout=StringIO(), timeout=(5*60))
+ p = p.stdout.getvalue().strip()
+
+ # Get the netns name list
+ netns_list = re.findall(r'ceph-ns-[^()\s][-.\w]+[^():\s]', p)
+
+ # Remove the stale netnses
+ for ns in netns_list:
+ ns_name = ns.split()[0]
+ args = ['sudo', 'ip', 'netns', 'delete', '{0}'.format(ns_name)]
+ try:
+ remote.run(args=args, timeout=(5*60), omit_sudo=False)
+ except Exception:
+ pass
+
+ # Remove the stale 'ceph-brx'
+ try:
+ args = ['sudo', 'ip', 'link', 'delete', 'ceph-brx']
+ remote.run(args=args, timeout=(5*60), omit_sudo=False)
+ except Exception:
+ pass
+
+ def _parse_netns_name(self):
+ self._netns_name = '-'.join(["ceph-ns",
+ re.sub(r'/+', "-", self.mountpoint)])
+
+ @property
+ def mountpoint(self):
+ if self.hostfs_mntpt is None:
+ self.hostfs_mntpt = os.path.join(self.test_dir,
+ self.hostfs_mntpt_dirname)
+ return self.hostfs_mntpt
+
+ @mountpoint.setter
+ def mountpoint(self, path):
+ if not isinstance(path, str):
+ raise RuntimeError('path should be of str type.')
+ self._mountpoint = self.hostfs_mntpt = path
+
+ @property
+ def netns_name(self):
+ if self._netns_name == None:
+ self._parse_netns_name()
+ return self._netns_name
+
+ @netns_name.setter
+ def netns_name(self, name):
+ self._netns_name = name
+
+ def assert_that_ceph_fs_exists(self):
+ output = self.ctx.managers[self.cluster_name].raw_cluster_cmd("fs", "ls")
+ if self.cephfs_name:
+ assert self.cephfs_name in output, \
+ 'expected ceph fs is not present on the cluster'
+ log.info(f'Mounting Ceph FS {self.cephfs_name}; just confirmed its presence on cluster')
+ else:
+ assert 'No filesystems enabled' not in output, \
+ 'ceph cluster has no ceph fs, not even the default ceph fs'
+ log.info('Mounting default Ceph FS; just confirmed its presence on cluster')
+
+ def assert_and_log_minimum_mount_details(self):
+ """
+ Make sure we have minimum details required for mounting. Ideally, this
+ method should be called at the beginning of the mount method.
+ """
+ if not self.client_id or not self.client_remote or \
+ not self.hostfs_mntpt:
+ log.error(f"self.client_id = {self.client_id}")
+ log.error(f"self.client_remote = {self.client_remote}")
+ log.error(f"self.hostfs_mntpt = {self.hostfs_mntpt}")
+ errmsg = ('Mounting CephFS requires that at least following '
+ 'details to be provided -\n'
+ '1. the client ID,\n2. the mountpoint and\n'
+ '3. the remote machine where CephFS will be mounted.\n')
+ raise RuntimeError(errmsg)
+
+ self.assert_that_ceph_fs_exists()
+
+ log.info('Mounting Ceph FS. Following are details of mount; remember '
+ '"None" represents Python type None -')
+ log.info(f'self.client_remote.hostname = {self.client_remote.hostname}')
+ log.info(f'self.client.name = client.{self.client_id}')
+ log.info(f'self.hostfs_mntpt = {self.hostfs_mntpt}')
+ log.info(f'self.cephfs_name = {self.cephfs_name}')
+ log.info(f'self.cephfs_mntpt = {self.cephfs_mntpt}')
+ log.info(f'self.client_keyring_path = {self.client_keyring_path}')
+ if self.client_keyring_path:
+ log.info('keyring content -\n' +
+ get_file(self.client_remote, self.client_keyring_path,
+ sudo=True).decode())
+
+ def is_blocked(self):
+ if not self.addr:
+ # can't infer if our addr is blocklisted - let the caller try to
+ # umount without lazy/force. If the client was blocklisted, then
+ # the umount would be stuck and the test would fail on timeout.
+ # happens only with Ubuntu 20.04 (missing kclient patches :/).
+ return False
+ self.fs = Filesystem(self.ctx, name=self.cephfs_name)
+
+ try:
+ output = self.fs.mon_manager.raw_cluster_cmd(args='osd blocklist ls')
+ except CommandFailedError:
+ # Fallback for older Ceph cluster
+ output = self.fs.mon_manager.raw_cluster_cmd(args='osd blacklist ls')
+
+ return self.addr in output
+
+ def is_stuck(self):
+ """
+ Check if mount is stuck/in a hanged state.
+ """
+ if not self.is_mounted():
+ return False
+
+ retval = self.client_remote.run(args=f'sudo stat {self.hostfs_mntpt}',
+ omit_sudo=False, wait=False).returncode
+ if retval == 0:
+ return False
+
+ time.sleep(10)
+ proc = self.client_remote.run(args='ps -ef', stdout=StringIO())
+ # if proc was running even after 10 seconds, it has to be stuck.
+ if f'stat {self.hostfs_mntpt}' in proc.stdout.getvalue():
+ log.critical('client mounted at self.hostfs_mntpt is stuck!')
+ return True
+ return False
+
+ def is_mounted(self):
+ file = self.client_remote.read_file('/proc/self/mounts',stdout=StringIO())
+ if self.hostfs_mntpt in file:
+ return True
+ else:
+ log.debug(f"not mounted; /proc/self/mounts is:\n{file}")
+ return False
+
+ def setupfs(self, name=None):
+ if name is None and self.fs is not None:
+ # Previous mount existed, reuse the old name
+ name = self.fs.name
+ self.fs = Filesystem(self.ctx, name=name)
+ log.info('Wait for MDS to reach steady state...')
+ self.fs.wait_for_daemons()
+ log.info('Ready to start {}...'.format(type(self).__name__))
+
+ def _create_mntpt(self):
+ self.client_remote.run(args=f'mkdir -p -v {self.hostfs_mntpt}',
+ timeout=60)
+ # Use 0000 mode to prevent undesired modifications to the mountpoint on
+ # the local file system.
+ self.client_remote.run(args=f'chmod 0000 {self.hostfs_mntpt}',
+ timeout=60)
+
+ @property
+ def _nsenter_args(self):
+ return ['nsenter', f'--net=/var/run/netns/{self.netns_name}']
+
+ def _set_filemode_on_mntpt(self):
+ stderr = StringIO()
+ try:
+ self.client_remote.run(
+ args=['sudo', 'chmod', '1777', self.hostfs_mntpt],
+ stderr=stderr, timeout=(5*60))
+ except CommandFailedError:
+ # the client does not have write permissions in the caps it holds
+ # for the Ceph FS that was just mounted.
+ if 'permission denied' in stderr.getvalue().lower():
+ pass
+
+ def _setup_brx_and_nat(self):
+ # The ip for ceph-brx should be
+ ip = IP(self.ceph_brx_net)[-2]
+ mask = self.ceph_brx_net.split('/')[1]
+ brd = IP(self.ceph_brx_net).broadcast()
+
+ brx = self.client_remote.run(args=['ip', 'addr'], stderr=StringIO(),
+ stdout=StringIO(), timeout=(5*60))
+ brx = re.findall(r'inet .* ceph-brx', brx.stdout.getvalue())
+ if brx:
+ # If the 'ceph-brx' already exists, then check whether
+ # the new net is conflicting with it
+ _ip, _mask = brx[0].split()[1].split('/', 1)
+ if _ip != "{}".format(ip) or _mask != mask:
+ raise RuntimeError("Conflict with existing ceph-brx {0}, new {1}/{2}".format(brx[0].split()[1], ip, mask))
+
+ # Setup the ceph-brx and always use the last valid IP
+ if not brx:
+ log.info("Setuping the 'ceph-brx' with {0}/{1}".format(ip, mask))
+
+ self.run_shell_payload(f"""
+ set -e
+ sudo ip link add name ceph-brx type bridge
+ sudo ip addr flush dev ceph-brx
+ sudo ip link set ceph-brx up
+ sudo ip addr add {ip}/{mask} brd {brd} dev ceph-brx
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ args = "echo 1 | sudo tee /proc/sys/net/ipv4/ip_forward"
+ self.client_remote.run(args=args, timeout=(5*60), omit_sudo=False)
+
+ # Setup the NAT
+ p = self.client_remote.run(args=['route'], stderr=StringIO(),
+ stdout=StringIO(), timeout=(5*60))
+ p = re.findall(r'default .*', p.stdout.getvalue())
+ if p == False:
+ raise RuntimeError("No default gw found")
+ gw = p[0].split()[7]
+
+ self.run_shell_payload(f"""
+ set -e
+ sudo iptables -A FORWARD -o {gw} -i ceph-brx -j ACCEPT
+ sudo iptables -A FORWARD -i {gw} -o ceph-brx -j ACCEPT
+ sudo iptables -t nat -A POSTROUTING -s {ip}/{mask} -o {gw} -j MASQUERADE
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ def _setup_netns(self):
+ p = self.client_remote.run(args=['ip', 'netns', 'list'],
+ stderr=StringIO(), stdout=StringIO(),
+ timeout=(5*60)).stdout.getvalue().strip()
+
+ # Get the netns name list
+ netns_list = re.findall(r'[^()\s][-.\w]+[^():\s]', p)
+
+ out = re.search(r"{0}".format(self.netns_name), p)
+ if out is None:
+ # Get an uniq nsid for the new netns
+ nsid = 0
+ p = self.client_remote.run(args=['ip', 'netns', 'list-id'],
+ stderr=StringIO(), stdout=StringIO(),
+ timeout=(5*60)).stdout.getvalue()
+ while True:
+ out = re.search(r"nsid {} ".format(nsid), p)
+ if out is None:
+ break
+
+ nsid += 1
+
+ # Add one new netns and set it id
+ self.run_shell_payload(f"""
+ set -e
+ sudo ip netns add {self.netns_name}
+ sudo ip netns set {self.netns_name} {nsid}
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+ self.nsid = nsid;
+ else:
+ # The netns already exists and maybe suspended by self.kill()
+ self.resume_netns();
+
+ nsid = int(re.search(r"{0} \(id: (\d+)\)".format(self.netns_name), p).group(1))
+ self.nsid = nsid;
+ return
+
+ # Get one ip address for netns
+ ips = IP(self.ceph_brx_net)
+ for ip in ips:
+ found = False
+ if ip == ips[0]:
+ continue
+ if ip == ips[-2]:
+ raise RuntimeError("we have ran out of the ip addresses")
+
+ for ns in netns_list:
+ ns_name = ns.split()[0]
+ args = ['sudo', 'ip', 'netns', 'exec', '{0}'.format(ns_name), 'ip', 'addr']
+ try:
+ p = self.client_remote.run(args=args, stderr=StringIO(),
+ stdout=StringIO(), timeout=(5*60),
+ omit_sudo=False)
+ q = re.search("{0}".format(ip), p.stdout.getvalue())
+ if q is not None:
+ found = True
+ break
+ except CommandFailedError:
+ if "No such file or directory" in p.stderr.getvalue():
+ pass
+ if "Invalid argument" in p.stderr.getvalue():
+ pass
+
+ if found == False:
+ break
+
+ mask = self.ceph_brx_net.split('/')[1]
+ brd = IP(self.ceph_brx_net).broadcast()
+
+ log.info("Setuping the netns '{0}' with {1}/{2}".format(self.netns_name, ip, mask))
+
+ # Setup the veth interfaces
+ brxip = IP(self.ceph_brx_net)[-2]
+ self.run_shell_payload(f"""
+ set -e
+ sudo ip link add veth0 netns {self.netns_name} type veth peer name brx.{nsid}
+ sudo ip netns exec {self.netns_name} ip addr add {ip}/{mask} brd {brd} dev veth0
+ sudo ip netns exec {self.netns_name} ip link set veth0 up
+ sudo ip netns exec {self.netns_name} ip link set lo up
+ sudo ip netns exec {self.netns_name} ip route add default via {brxip}
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ # Bring up the brx interface and join it to 'ceph-brx'
+ self.run_shell_payload(f"""
+ set -e
+ sudo ip link set brx.{nsid} up
+ sudo ip link set dev brx.{nsid} master ceph-brx
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ def _cleanup_netns(self):
+ if self.nsid == -1:
+ return
+ log.info("Removing the netns '{0}'".format(self.netns_name))
+
+ # Delete the netns and the peer veth interface
+ self.run_shell_payload(f"""
+ set -e
+ sudo ip link set brx.{self.nsid} down
+ sudo ip link delete dev brx.{self.nsid}
+ sudo ip netns delete {self.netns_name}
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ self.nsid = -1
+
+ def _cleanup_brx_and_nat(self):
+ brx = self.client_remote.run(args=['ip', 'addr'], stderr=StringIO(),
+ stdout=StringIO(), timeout=(5*60))
+ brx = re.findall(r'inet .* ceph-brx', brx.stdout.getvalue())
+ if not brx:
+ return
+
+ # If we are the last netns, will delete the ceph-brx
+ args = ['sudo', 'ip', 'link', 'show']
+ p = self.client_remote.run(args=args, stdout=StringIO(),
+ timeout=(5*60), omit_sudo=False)
+ _list = re.findall(r'brx\.', p.stdout.getvalue().strip())
+ if len(_list) != 0:
+ return
+
+ log.info("Removing the 'ceph-brx'")
+
+ self.run_shell_payload("""
+ set -e
+ sudo ip link set ceph-brx down
+ sudo ip link delete ceph-brx
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ # Drop the iptables NAT rules
+ ip = IP(self.ceph_brx_net)[-2]
+ mask = self.ceph_brx_net.split('/')[1]
+
+ p = self.client_remote.run(args=['route'], stderr=StringIO(),
+ stdout=StringIO(), timeout=(5*60))
+ p = re.findall(r'default .*', p.stdout.getvalue())
+ if p == False:
+ raise RuntimeError("No default gw found")
+ gw = p[0].split()[7]
+ self.run_shell_payload(f"""
+ set -e
+ sudo iptables -D FORWARD -o {gw} -i ceph-brx -j ACCEPT
+ sudo iptables -D FORWARD -i {gw} -o ceph-brx -j ACCEPT
+ sudo iptables -t nat -D POSTROUTING -s {ip}/{mask} -o {gw} -j MASQUERADE
+ """, timeout=(5*60), omit_sudo=False, cwd='/')
+
+ def setup_netns(self):
+ """
+ Setup the netns for the mountpoint.
+ """
+ log.info("Setting the '{0}' netns for '{1}'".format(self._netns_name, self.mountpoint))
+ self._setup_brx_and_nat()
+ self._setup_netns()
+
+ def cleanup_netns(self):
+ """
+ Cleanup the netns for the mountpoint.
+ """
+ # We will defer cleaning the netnses and bridge until the last
+ # mountpoint is unmounted, this will be a temporary work around
+ # for issue#46282.
+
+ # log.info("Cleaning the '{0}' netns for '{1}'".format(self._netns_name, self.mountpoint))
+ # self._cleanup_netns()
+ # self._cleanup_brx_and_nat()
+
+ def suspend_netns(self):
+ """
+ Suspend the netns veth interface.
+ """
+ if self.nsid == -1:
+ return
+
+ log.info("Suspending the '{0}' netns for '{1}'".format(self._netns_name, self.mountpoint))
+
+ args = ['sudo', 'ip', 'link', 'set', 'brx.{0}'.format(self.nsid), 'down']
+ self.client_remote.run(args=args, timeout=(5*60), omit_sudo=False)
+
+ def resume_netns(self):
+ """
+ Resume the netns veth interface.
+ """
+ if self.nsid == -1:
+ return
+
+ log.info("Resuming the '{0}' netns for '{1}'".format(self._netns_name, self.mountpoint))
+
+ args = ['sudo', 'ip', 'link', 'set', 'brx.{0}'.format(self.nsid), 'up']
+ self.client_remote.run(args=args, timeout=(5*60), omit_sudo=False)
+
+ def mount(self, mntopts=[], check_status=True, **kwargs):
+ """
+ kwargs expects its members to be same as the arguments accepted by
+ self.update_attrs().
+ """
+ raise NotImplementedError()
+
+ def mount_wait(self, **kwargs):
+ """
+ Accepts arguments same as self.mount().
+ """
+ self.mount(**kwargs)
+ self.wait_until_mounted()
+
+ def _run_umount_lf(self):
+ log.debug(f'Force/lazy unmounting on client.{self.client_id}')
+
+ try:
+ proc = self.client_remote.run(
+ args=f'sudo umount --lazy --force {self.hostfs_mntpt}',
+ timeout=UMOUNT_TIMEOUT, omit_sudo=False)
+ except CommandFailedError:
+ if self.is_mounted():
+ raise
+
+ return proc
+
+ def umount(self):
+ raise NotImplementedError()
+
+ def umount_wait(self, force=False, require_clean=False,
+ timeout=UMOUNT_TIMEOUT):
+ """
+
+ :param force: Expect that the mount will not shutdown cleanly: kill
+ it hard.
+ :param require_clean: Wait for the Ceph client associated with the
+ mount (e.g. ceph-fuse) to terminate, and
+ raise if it doesn't do so cleanly.
+ :param timeout: amount of time to be waited for umount command to finish
+ :return:
+ """
+ raise NotImplementedError()
+
+ def _verify_attrs(self, **kwargs):
+ """
+ Verify that client_id, client_keyring_path, client_remote, hostfs_mntpt,
+ cephfs_name, cephfs_mntpt are either type str or None.
+ """
+ for k, v in kwargs.items():
+ if v is not None and not isinstance(v, str):
+ raise RuntimeError('value of attributes should be either str '
+ f'or None. {k} - {v}')
+
+ def update_attrs(self, client_id=None, client_keyring_path=None,
+ client_remote=None, hostfs_mntpt=None, cephfs_name=None,
+ cephfs_mntpt=None):
+ if not (client_id or client_keyring_path or client_remote or
+ cephfs_name or cephfs_mntpt or hostfs_mntpt):
+ return
+
+ self._verify_attrs(client_id=client_id,
+ client_keyring_path=client_keyring_path,
+ hostfs_mntpt=hostfs_mntpt, cephfs_name=cephfs_name,
+ cephfs_mntpt=cephfs_mntpt)
+
+ if client_id:
+ self.client_id = client_id
+ if client_keyring_path:
+ self.client_keyring_path = client_keyring_path
+ if client_remote:
+ self.client_remote = client_remote
+ if hostfs_mntpt:
+ self.hostfs_mntpt = hostfs_mntpt
+ if cephfs_name:
+ self.cephfs_name = cephfs_name
+ if cephfs_mntpt:
+ self.cephfs_mntpt = cephfs_mntpt
+
+ def remount(self, **kwargs):
+ """
+ Update mount object's attributes and attempt remount with these
+ new values for these attrbiutes.
+
+ 1. Run umount_wait().
+ 2. Run update_attrs().
+ 3. Run mount().
+
+ Accepts arguments of self.mount() and self.update_attrs() with 1
+ exception: wait accepted too which can be True or False.
+ """
+ self.umount_wait()
+ assert not self.is_mounted()
+
+ mntopts = kwargs.pop('mntopts', [])
+ check_status = kwargs.pop('check_status', True)
+ wait = kwargs.pop('wait', True)
+
+ self.update_attrs(**kwargs)
+
+ retval = self.mount(mntopts=mntopts, check_status=check_status)
+ # avoid this scenario (again): mount command might've failed and
+ # check_status might have silenced the exception, yet we attempt to
+ # wait which might lead to an error.
+ if retval is None and wait:
+ self.wait_until_mounted()
+
+ return retval
+
+ def kill(self):
+ """
+ Suspend the netns veth interface to make the client disconnected
+ from the ceph cluster
+ """
+ log.info('Killing connection on {0}...'.format(self.client_remote.name))
+ self.suspend_netns()
+
+ def kill_cleanup(self):
+ """
+ Follow up ``kill`` to get to a clean unmounted state.
+ """
+ log.info('Cleaning up killed connection on {0}'.format(self.client_remote.name))
+ self.umount_wait(force=True)
+
+ def cleanup(self):
+ """
+ Remove the mount point.
+
+ Prerequisite: the client is not mounted.
+ """
+ log.info('Cleaning up mount {0}'.format(self.client_remote.name))
+ stderr = StringIO()
+ try:
+ self.client_remote.run(args=['rmdir', '--', self.mountpoint],
+ cwd=self.test_dir, stderr=stderr,
+ timeout=(60*5), check_status=False)
+ except CommandFailedError:
+ if "no such file or directory" not in stderr.getvalue().lower():
+ raise
+
+ self.cleanup_netns()
+
+ def wait_until_mounted(self):
+ raise NotImplementedError()
+
+ def get_keyring_path(self):
+ # N.B.: default keyring is /etc/ceph/ceph.keyring; see ceph.py and generate_caps
+ return '/etc/ceph/ceph.client.{id}.keyring'.format(id=self.client_id)
+
+ def get_key_from_keyfile(self):
+ # XXX: don't call run_shell(), since CephFS might be unmounted.
+ keyring = self.client_remote.read_file(self.client_keyring_path).\
+ decode()
+
+ for line in keyring.split('\n'):
+ if line.find('key') != -1:
+ return line[line.find('=') + 1 : ].strip()
+
+ raise RuntimeError('Key not found in keyring file '
+ f'{self.client_keyring_path}. Its contents are -\n'
+ f'{keyring}')
+
+ @property
+ def config_path(self):
+ """
+ Path to ceph.conf: override this if you're not a normal systemwide ceph install
+ :return: stringv
+ """
+ return "/etc/ceph/ceph.conf"
+
+ @contextmanager
+ def mounted_wait(self):
+ """
+ A context manager, from an initially unmounted state, to mount
+ this, yield, and then unmount and clean up.
+ """
+ self.mount()
+ self.wait_until_mounted()
+ try:
+ yield
+ finally:
+ self.umount_wait()
+
+ def create_file(self, filename='testfile', dirname=None, user=None,
+ check_status=True):
+ assert(self.is_mounted())
+
+ if not os.path.isabs(filename):
+ if dirname:
+ if os.path.isabs(dirname):
+ path = os.path.join(dirname, filename)
+ else:
+ path = os.path.join(self.hostfs_mntpt, dirname, filename)
+ else:
+ path = os.path.join(self.hostfs_mntpt, filename)
+ else:
+ path = filename
+
+ if user:
+ args = ['sudo', '-u', user, '-s', '/bin/bash', '-c', 'touch ' + path]
+ else:
+ args = 'touch ' + path
+
+ return self.client_remote.run(args=args, check_status=check_status)
+
+ def create_files(self):
+ assert(self.is_mounted())
+
+ for suffix in self.test_files:
+ log.info("Creating file {0}".format(suffix))
+ self.client_remote.run(args=[
+ 'touch', os.path.join(self.hostfs_mntpt, suffix)
+ ])
+
+ def test_create_file(self, filename='testfile', dirname=None, user=None,
+ check_status=True):
+ return self.create_file(filename=filename, dirname=dirname, user=user,
+ check_status=False)
+
+ def check_files(self):
+ assert(self.is_mounted())
+
+ for suffix in self.test_files:
+ log.info("Checking file {0}".format(suffix))
+ r = self.client_remote.run(args=[
+ 'ls', os.path.join(self.hostfs_mntpt, suffix)
+ ], check_status=False)
+ if r.exitstatus != 0:
+ raise RuntimeError("Expected file {0} not found".format(suffix))
+
+ def write_file(self, path, data, perms=None):
+ """
+ Write the given data at the given path and set the given perms to the
+ file on the path.
+ """
+ if path.find(self.hostfs_mntpt) == -1:
+ path = os.path.join(self.hostfs_mntpt, path)
+
+ write_file(self.client_remote, path, data)
+
+ if perms:
+ self.run_shell(args=f'chmod {perms} {path}')
+
+ def read_file(self, path):
+ """
+ Return the data from the file on given path.
+ """
+ if path.find(self.hostfs_mntpt) == -1:
+ path = os.path.join(self.hostfs_mntpt, path)
+
+ return self.run_shell(args=['cat', path]).\
+ stdout.getvalue().strip()
+
+ def create_destroy(self):
+ assert(self.is_mounted())
+
+ filename = "{0} {1}".format(datetime.datetime.now(), self.client_id)
+ log.debug("Creating test file {0}".format(filename))
+ self.client_remote.run(args=[
+ 'touch', os.path.join(self.hostfs_mntpt, filename)
+ ])
+ log.debug("Deleting test file {0}".format(filename))
+ self.client_remote.run(args=[
+ 'rm', '-f', os.path.join(self.hostfs_mntpt, filename)
+ ])
+
+ def _run_python(self, pyscript, py_version='python3', sudo=False):
+ args, omit_sudo = [], True
+ if sudo:
+ args.append('sudo')
+ omit_sudo = False
+ args += ['adjust-ulimits', 'daemon-helper', 'kill', py_version, '-c', pyscript]
+ return self.client_remote.run(args=args, wait=False, stdin=run.PIPE,
+ stdout=StringIO(), omit_sudo=omit_sudo)
+
+ def run_python(self, pyscript, py_version='python3', sudo=False):
+ p = self._run_python(pyscript, py_version, sudo=sudo)
+ p.wait()
+ return p.stdout.getvalue().strip()
+
+ def run_shell(self, args, timeout=300, **kwargs):
+ omit_sudo = kwargs.pop('omit_sudo', False)
+ cwd = kwargs.pop('cwd', self.mountpoint)
+ stdout = kwargs.pop('stdout', StringIO())
+ stderr = kwargs.pop('stderr', StringIO())
+
+ return self.client_remote.run(args=args, cwd=cwd, timeout=timeout,
+ stdout=stdout, stderr=stderr,
+ omit_sudo=omit_sudo, **kwargs)
+
+ def run_shell_payload(self, payload, **kwargs):
+ kwargs['args'] = ["bash", "-c", Raw(f"'{payload}'")]
+ if kwargs.pop('sudo', False):
+ kwargs['args'].insert(0, 'sudo')
+ kwargs['omit_sudo'] = False
+ return self.run_shell(**kwargs)
+
+ def run_as_user(self, **kwargs):
+ """
+ Besides the arguments defined for run_shell() this method also
+ accepts argument 'user'.
+ """
+ args = kwargs.pop('args')
+ user = kwargs.pop('user')
+ if isinstance(args, str):
+ args = ['sudo', '-u', user, '-s', '/bin/bash', '-c', args]
+ elif isinstance(args, list):
+ cmdlist = args
+ cmd = ''
+ for i in cmdlist:
+ cmd = cmd + i + ' '
+ # get rid of extra space at the end.
+ cmd = cmd[:-1]
+
+ args = ['sudo', '-u', user, '-s', '/bin/bash', '-c', cmd]
+
+ kwargs['args'] = args
+ kwargs['omit_sudo'] = False
+ return self.run_shell(**kwargs)
+
+ def run_as_root(self, **kwargs):
+ """
+ Accepts same arguments as run_shell().
+ """
+ kwargs['user'] = 'root'
+ return self.run_as_user(**kwargs)
+
+ def assert_retval(self, proc_retval, exp_retval):
+ msg = (f'expected return value: {exp_retval}\n'
+ f'received return value: {proc_retval}\n')
+ assert proc_retval == exp_retval, msg
+
+ def _verify(self, proc, exp_retval=None, exp_errmsgs=None):
+ if exp_retval is None and exp_errmsgs is None:
+ raise RuntimeError('Method didn\'t get enough parameters. Pass '
+ 'return value or error message expected from '
+ 'the command/process.')
+
+ if exp_retval is not None:
+ self.assert_retval(proc.returncode, exp_retval)
+ if exp_errmsgs is None:
+ return
+
+ if isinstance(exp_errmsgs, str):
+ exp_errmsgs = (exp_errmsgs, )
+
+ proc_stderr = proc.stderr.getvalue().lower()
+ msg = ('didn\'t find any of the expected string in stderr.\n'
+ f'expected string: {exp_errmsgs}\n'
+ f'received error message: {proc_stderr}\n'
+ 'note: received error message is converted to lowercase')
+ for e in exp_errmsgs:
+ if e in proc_stderr:
+ break
+ # this else is meant for for loop.
+ else:
+ assert False, msg
+
+ def negtestcmd(self, args, retval=None, errmsgs=None, stdin=None,
+ cwd=None, wait=True):
+ """
+ Conduct a negative test for the given command.
+
+ retval and errmsgs are parameters to confirm the cause of command
+ failure.
+
+ Note: errmsgs is expected to be a tuple, but in case there's only
+ error message, it can also be a string. This method will handle
+ that internally.
+ """
+ proc = self.run_shell(args=args, wait=wait, stdin=stdin, cwd=cwd,
+ check_status=False)
+ self._verify(proc, retval, errmsgs)
+ return proc
+
+ def negtestcmd_as_user(self, args, user, retval=None, errmsgs=None,
+ stdin=None, cwd=None, wait=True):
+ proc = self.run_as_user(args=args, user=user, wait=wait, stdin=stdin,
+ cwd=cwd, check_status=False)
+ self._verify(proc, retval, errmsgs)
+ return proc
+
+ def negtestcmd_as_root(self, args, retval=None, errmsgs=None, stdin=None,
+ cwd=None, wait=True):
+ proc = self.run_as_root(args=args, wait=wait, stdin=stdin, cwd=cwd,
+ check_status=False)
+ self._verify(proc, retval, errmsgs)
+ return proc
+
+ def open_for_reading(self, basename):
+ """
+ Open a file for reading only.
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ return self._run_python(dedent(
+ """
+ import os
+ mode = os.O_RDONLY
+ fd = os.open("{path}", mode)
+ os.close(fd)
+ """.format(path=path)
+ ))
+
+ def open_for_writing(self, basename, creat=True, trunc=True, excl=False):
+ """
+ Open a file for writing only.
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ return self._run_python(dedent(
+ """
+ import os
+ mode = os.O_WRONLY
+ if {creat}:
+ mode |= os.O_CREAT
+ if {trunc}:
+ mode |= os.O_TRUNC
+ if {excl}:
+ mode |= os.O_EXCL
+ fd = os.open("{path}", mode)
+ os.close(fd)
+ """.format(path=path, creat=creat, trunc=trunc, excl=excl)
+ ))
+
+ def open_no_data(self, basename):
+ """
+ A pure metadata operation
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ p = self._run_python(dedent(
+ """
+ f = open("{path}", 'w')
+ """.format(path=path)
+ ))
+ p.wait()
+
+ def open_background(self, basename="background_file", write=True, content="content"):
+ """
+ Open a file for writing, then block such that the client
+ will hold a capability.
+
+ Don't return until the remote process has got as far as opening
+ the file, then return the RemoteProcess instance.
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ if write:
+ pyscript = dedent("""
+ import time
+
+ with open("{path}", 'w') as f:
+ f.write("{content}")
+ f.flush()
+ while True:
+ time.sleep(1)
+ """).format(path=path, content=content)
+ else:
+ pyscript = dedent("""
+ import time
+
+ with open("{path}", 'r') as f:
+ while True:
+ time.sleep(1)
+ """).format(path=path)
+
+ rproc = self._run_python(pyscript)
+ self.background_procs.append(rproc)
+
+ # This wait would not be sufficient if the file had already
+ # existed, but it's simple and in practice users of open_background
+ # are not using it on existing files.
+ if write:
+ self.wait_for_visible(basename, size=len(content))
+ else:
+ self.wait_for_visible(basename)
+
+ return rproc
+
+ def open_dir_background(self, basename):
+ """
+ Create and hold a capability to a directory.
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ pyscript = dedent("""
+ import time
+ import os
+
+ os.mkdir("{path}")
+ fd = os.open("{path}", os.O_RDONLY)
+ while True:
+ time.sleep(1)
+ """).format(path=path)
+
+ rproc = self._run_python(pyscript)
+ self.background_procs.append(rproc)
+
+ self.wait_for_visible(basename)
+
+ return rproc
+
+ def wait_for_dir_empty(self, dirname, timeout=30):
+ dirpath = os.path.join(self.hostfs_mntpt, dirname)
+ with safe_while(sleep=5, tries=(timeout//5)) as proceed:
+ while proceed():
+ p = self.run_shell_payload(f"stat -c %h {dirpath}")
+ nr_links = int(p.stdout.getvalue().strip())
+ if nr_links == 2:
+ return
+
+ def wait_for_visible(self, basename="background_file", size=None, timeout=30):
+ i = 0
+ args = ['stat']
+ if size is not None:
+ args += ['--printf=%s']
+ args += [os.path.join(self.hostfs_mntpt, basename)]
+ while i < timeout:
+ p = self.client_remote.run(args=args, stdout=StringIO(), check_status=False)
+ if p.exitstatus == 0:
+ if size is not None:
+ s = p.stdout.getvalue().strip()
+ if int(s) == size:
+ log.info(f"File {basename} became visible with size {size} from {self.client_id} after {i}s")
+ return
+ else:
+ log.error(f"File {basename} became visible but with size {int(s)} not {size}")
+ else:
+ log.info(f"File {basename} became visible from {self.client_id} after {i}s")
+ return
+ time.sleep(1)
+ i += 1
+
+ raise RuntimeError("Timed out after {0}s waiting for {1} to become visible from {2}".format(
+ i, basename, self.client_id))
+
+ def lock_background(self, basename="background_file", do_flock=True):
+ """
+ Open and lock a files for writing, hold the lock in a background process
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ script_builder = """
+ import time
+ import fcntl
+ import struct"""
+ if do_flock:
+ script_builder += """
+ f1 = open("{path}-1", 'w')
+ fcntl.flock(f1, fcntl.LOCK_EX | fcntl.LOCK_NB)"""
+ script_builder += """
+ f2 = open("{path}-2", 'w')
+ lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
+ fcntl.fcntl(f2, fcntl.F_SETLK, lockdata)
+ while True:
+ time.sleep(1)
+ """
+
+ pyscript = dedent(script_builder).format(path=path)
+
+ log.info("lock_background file {0}".format(basename))
+ rproc = self._run_python(pyscript)
+ self.background_procs.append(rproc)
+ return rproc
+
+ def lock_and_release(self, basename="background_file"):
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ script = """
+ import time
+ import fcntl
+ import struct
+ f1 = open("{path}-1", 'w')
+ fcntl.flock(f1, fcntl.LOCK_EX)
+ f2 = open("{path}-2", 'w')
+ lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
+ fcntl.fcntl(f2, fcntl.F_SETLK, lockdata)
+ """
+ pyscript = dedent(script).format(path=path)
+
+ log.info("lock_and_release file {0}".format(basename))
+ return self._run_python(pyscript)
+
+ def check_filelock(self, basename="background_file", do_flock=True):
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ script_builder = """
+ import fcntl
+ import errno
+ import struct"""
+ if do_flock:
+ script_builder += """
+ f1 = open("{path}-1", 'r')
+ try:
+ fcntl.flock(f1, fcntl.LOCK_EX | fcntl.LOCK_NB)
+ except IOError as e:
+ if e.errno == errno.EAGAIN:
+ pass
+ else:
+ raise RuntimeError("flock on file {path}-1 not found")"""
+ script_builder += """
+ f2 = open("{path}-2", 'r')
+ try:
+ lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
+ fcntl.fcntl(f2, fcntl.F_SETLK, lockdata)
+ except IOError as e:
+ if e.errno == errno.EAGAIN:
+ pass
+ else:
+ raise RuntimeError("posix lock on file {path}-2 not found")
+ """
+ pyscript = dedent(script_builder).format(path=path)
+
+ log.info("check lock on file {0}".format(basename))
+ self.client_remote.run(args=[
+ 'python3', '-c', pyscript
+ ])
+
+ def write_background(self, basename="background_file", loop=False):
+ """
+ Open a file for writing, complete as soon as you can
+ :param basename:
+ :return:
+ """
+ assert(self.is_mounted())
+
+ path = os.path.join(self.hostfs_mntpt, basename)
+
+ pyscript = dedent("""
+ import os
+ import time
+
+ fd = os.open("{path}", os.O_RDWR | os.O_CREAT, 0o644)
+ try:
+ while True:
+ os.write(fd, b'content')
+ time.sleep(1)
+ if not {loop}:
+ break
+ except IOError as e:
+ pass
+ os.close(fd)
+ """).format(path=path, loop=str(loop))
+
+ rproc = self._run_python(pyscript)
+ self.background_procs.append(rproc)
+ return rproc
+
+ def write_n_mb(self, filename, n_mb, seek=0, wait=True):
+ """
+ Write the requested number of megabytes to a file
+ """
+ assert(self.is_mounted())
+
+ return self.run_shell(["dd", "if=/dev/urandom", "of={0}".format(filename),
+ "bs=1M", "conv=fdatasync",
+ "count={0}".format(int(n_mb)),
+ "seek={0}".format(int(seek))
+ ], wait=wait)
+
+ def write_test_pattern(self, filename, size):
+ log.info("Writing {0} bytes to {1}".format(size, filename))
+ return self.run_python(dedent("""
+ import zlib
+ path = "{path}"
+ with open(path, 'w') as f:
+ for i in range(0, {size}):
+ val = zlib.crc32(str(i).encode('utf-8')) & 7
+ f.write(chr(val))
+ """.format(
+ path=os.path.join(self.hostfs_mntpt, filename),
+ size=size
+ )))
+
+ def validate_test_pattern(self, filename, size):
+ log.info("Validating {0} bytes from {1}".format(size, filename))
+ # Use sudo because cephfs-data-scan may recreate the file with owner==root
+ return self.run_python(dedent("""
+ import zlib
+ path = "{path}"
+ with open(path, 'r') as f:
+ bytes = f.read()
+ if len(bytes) != {size}:
+ raise RuntimeError("Bad length {{0}} vs. expected {{1}}".format(
+ len(bytes), {size}
+ ))
+ for i, b in enumerate(bytes):
+ val = zlib.crc32(str(i).encode('utf-8')) & 7
+ if b != chr(val):
+ raise RuntimeError("Bad data at offset {{0}}".format(i))
+ """.format(
+ path=os.path.join(self.hostfs_mntpt, filename),
+ size=size
+ )), sudo=True)
+
+ def open_n_background(self, fs_path, count):
+ """
+ Open N files for writing, hold them open in a background process
+
+ :param fs_path: Path relative to CephFS root, e.g. "foo/bar"
+ :return: a RemoteProcess
+ """
+ assert(self.is_mounted())
+
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+
+ pyscript = dedent("""
+ import sys
+ import time
+ import os
+
+ n = {count}
+ abs_path = "{abs_path}"
+
+ if not os.path.exists(abs_path):
+ os.makedirs(abs_path)
+
+ handles = []
+ for i in range(0, n):
+ fname = "file_"+str(i)
+ path = os.path.join(abs_path, fname)
+ handles.append(open(path, 'w'))
+
+ while True:
+ time.sleep(1)
+ """).format(abs_path=abs_path, count=count)
+
+ rproc = self._run_python(pyscript)
+ self.background_procs.append(rproc)
+ return rproc
+
+ def create_n_files(self, fs_path, count, sync=False, dirsync=False,
+ unlink=False, finaldirsync=False, hard_links=0):
+ """
+ Create n files.
+
+ :param sync: sync the file after writing
+ :param dirsync: sync the containing directory after closing the file
+ :param unlink: unlink the file after closing
+ :param finaldirsync: sync the containing directory after closing the last file
+ :param hard_links: create given number of hard link(s) for each file
+ """
+
+ assert(self.is_mounted())
+
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+
+ pyscript = dedent(f"""
+ import os
+ import uuid
+
+ n = {count}
+ create_hard_links = False
+ if {hard_links} > 0:
+ create_hard_links = True
+ path = "{abs_path}"
+
+ dpath = os.path.dirname(path)
+ fnameprefix = os.path.basename(path)
+ os.makedirs(dpath, exist_ok=True)
+
+ try:
+ dirfd = os.open(dpath, os.O_DIRECTORY)
+
+ for i in range(n):
+ fpath = os.path.join(dpath, f"{{fnameprefix}}_{{i}}")
+ with open(fpath, 'w') as f:
+ f.write(f"{{i}}")
+ if {sync}:
+ f.flush()
+ os.fsync(f.fileno())
+ if {unlink}:
+ os.unlink(fpath)
+ if {dirsync}:
+ os.fsync(dirfd)
+ if create_hard_links:
+ for j in range({hard_links}):
+ os.system(f"ln {{fpath}} {{dpath}}/{{fnameprefix}}_{{i}}_{{uuid.uuid4()}}")
+ if {finaldirsync}:
+ os.fsync(dirfd)
+ finally:
+ os.close(dirfd)
+ """)
+
+ self.run_python(pyscript)
+
+ def teardown(self):
+ for p in self.background_procs:
+ log.info("Terminating background process")
+ self._kill_background(p)
+
+ self.background_procs = []
+
+ def _kill_background(self, p):
+ if p.stdin:
+ p.stdin.close()
+ try:
+ p.wait()
+ except (CommandFailedError, ConnectionLostError):
+ pass
+
+ def kill_background(self, p):
+ """
+ For a process that was returned by one of the _background member functions,
+ kill it hard.
+ """
+ self._kill_background(p)
+ self.background_procs.remove(p)
+
+ def send_signal(self, signal):
+ signal = signal.lower()
+ if signal.lower() not in ['sigstop', 'sigcont', 'sigterm', 'sigkill']:
+ raise NotImplementedError
+
+ self.client_remote.run(args=['sudo', 'kill', '-{0}'.format(signal),
+ self.client_pid], omit_sudo=False)
+
+ def get_global_id(self):
+ raise NotImplementedError()
+
+ def get_global_inst(self):
+ raise NotImplementedError()
+
+ def get_global_addr(self):
+ raise NotImplementedError()
+
+ def get_osd_epoch(self):
+ raise NotImplementedError()
+
+ def get_op_read_count(self):
+ raise NotImplementedError()
+
+ def readlink(self, fs_path):
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+
+ pyscript = dedent("""
+ import os
+
+ print(os.readlink("{path}"))
+ """).format(path=abs_path)
+
+ proc = self._run_python(pyscript)
+ proc.wait()
+ return str(proc.stdout.getvalue().strip())
+
+
+ def lstat(self, fs_path, follow_symlinks=False, wait=True):
+ return self.stat(fs_path, follow_symlinks=False, wait=True)
+
+ def stat(self, fs_path, follow_symlinks=True, wait=True, **kwargs):
+ """
+ stat a file, and return the result as a dictionary like this:
+ {
+ "st_ctime": 1414161137.0,
+ "st_mtime": 1414161137.0,
+ "st_nlink": 33,
+ "st_gid": 0,
+ "st_dev": 16777218,
+ "st_size": 1190,
+ "st_ino": 2,
+ "st_uid": 0,
+ "st_mode": 16877,
+ "st_atime": 1431520593.0
+ }
+
+ Raises exception on absent file.
+ """
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+ if follow_symlinks:
+ stat_call = "os.stat('" + abs_path + "')"
+ else:
+ stat_call = "os.lstat('" + abs_path + "')"
+
+ pyscript = dedent("""
+ import os
+ import stat
+ import json
+ import sys
+
+ try:
+ s = {stat_call}
+ except OSError as e:
+ sys.exit(e.errno)
+
+ attrs = ["st_mode", "st_ino", "st_dev", "st_nlink", "st_uid", "st_gid", "st_size", "st_atime", "st_mtime", "st_ctime"]
+ print(json.dumps(
+ dict([(a, getattr(s, a)) for a in attrs]),
+ indent=2))
+ """).format(stat_call=stat_call)
+ proc = self._run_python(pyscript, **kwargs)
+ if wait:
+ proc.wait()
+ return json.loads(proc.stdout.getvalue().strip())
+ else:
+ return proc
+
+ def touch(self, fs_path):
+ """
+ Create a dentry if it doesn't already exist. This python
+ implementation exists because the usual command line tool doesn't
+ pass through error codes like EIO.
+
+ :param fs_path:
+ :return:
+ """
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+ pyscript = dedent("""
+ import sys
+ import errno
+
+ try:
+ f = open("{path}", "w")
+ f.close()
+ except IOError as e:
+ sys.exit(errno.EIO)
+ """).format(path=abs_path)
+ proc = self._run_python(pyscript)
+ proc.wait()
+
+ def path_to_ino(self, fs_path, follow_symlinks=True):
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+
+ if follow_symlinks:
+ pyscript = dedent("""
+ import os
+ import stat
+
+ print(os.stat("{path}").st_ino)
+ """).format(path=abs_path)
+ else:
+ pyscript = dedent("""
+ import os
+ import stat
+
+ print(os.lstat("{path}").st_ino)
+ """).format(path=abs_path)
+
+ proc = self._run_python(pyscript)
+ proc.wait()
+ return int(proc.stdout.getvalue().strip())
+
+ def path_to_nlink(self, fs_path):
+ abs_path = os.path.join(self.hostfs_mntpt, fs_path)
+
+ pyscript = dedent("""
+ import os
+ import stat
+
+ print(os.stat("{path}").st_nlink)
+ """).format(path=abs_path)
+
+ proc = self._run_python(pyscript)
+ proc.wait()
+ return int(proc.stdout.getvalue().strip())
+
+ def ls(self, path=None, **kwargs):
+ """
+ Wrap ls: return a list of strings
+ """
+ kwargs['args'] = ["ls"]
+ if path:
+ kwargs['args'].append(path)
+ if kwargs.pop('sudo', False):
+ kwargs['args'].insert(0, 'sudo')
+ kwargs['omit_sudo'] = False
+ ls_text = self.run_shell(**kwargs).stdout.getvalue().strip()
+
+ if ls_text:
+ return ls_text.split("\n")
+ else:
+ # Special case because otherwise split on empty string
+ # gives you [''] instead of []
+ return []
+
+ def setfattr(self, path, key, val, **kwargs):
+ """
+ Wrap setfattr.
+
+ :param path: relative to mount point
+ :param key: xattr name
+ :param val: xattr value
+ :return: None
+ """
+ kwargs['args'] = ["setfattr", "-n", key, "-v", val, path]
+ if kwargs.pop('sudo', False):
+ kwargs['args'].insert(0, 'sudo')
+ kwargs['omit_sudo'] = False
+ self.run_shell(**kwargs)
+
+ def getfattr(self, path, attr, **kwargs):
+ """
+ Wrap getfattr: return the values of a named xattr on one file, or
+ None if the attribute is not found.
+
+ :return: a string
+ """
+ kwargs['args'] = ["getfattr", "--only-values", "-n", attr, path]
+ if kwargs.pop('sudo', False):
+ kwargs['args'].insert(0, 'sudo')
+ kwargs['omit_sudo'] = False
+ kwargs['wait'] = False
+ p = self.run_shell(**kwargs)
+ try:
+ p.wait()
+ except CommandFailedError as e:
+ if e.exitstatus == 1 and "No such attribute" in p.stderr.getvalue():
+ return None
+ else:
+ raise
+
+ return str(p.stdout.getvalue())
+
+ def df(self):
+ """
+ Wrap df: return a dict of usage fields in bytes
+ """
+
+ p = self.run_shell(["df", "-B1", "."])
+ lines = p.stdout.getvalue().strip().split("\n")
+ fs, total, used, avail = lines[1].split()[:4]
+ log.warning(lines)
+
+ return {
+ "total": int(total),
+ "used": int(used),
+ "available": int(avail)
+ }
+
+ def dir_checksum(self, path=None, follow_symlinks=False):
+ cmd = ["find"]
+ if follow_symlinks:
+ cmd.append("-L")
+ if path:
+ cmd.append(path)
+ cmd.extend(["-type", "f", "-exec", "md5sum", "{}", "+"])
+ checksum_text = self.run_shell(cmd).stdout.getvalue().strip()
+ checksum_sorted = sorted(checksum_text.split('\n'), key=lambda v: v.split()[1])
+ return hashlib.md5(('\n'.join(checksum_sorted)).encode('utf-8')).hexdigest()
+
+ def validate_subvol_options(self):
+ mount_subvol_num = self.client_config.get('mount_subvol_num', None)
+ if self.cephfs_mntpt and mount_subvol_num is not None:
+ log.warning("You cannot specify both: cephfs_mntpt and mount_subvol_num")
+ log.info(f"Mounting subvol {mount_subvol_num} for now")
+
+ if mount_subvol_num is not None:
+ # mount_subvol must be an index into the subvol path array for the fs
+ if not self.cephfs_name:
+ self.cephfs_name = 'cephfs'
+ assert(hasattr(self.ctx, "created_subvols"))
+ # mount_subvol must be specified under client.[0-9] yaml section
+ subvol_paths = self.ctx.created_subvols[self.cephfs_name]
+ path_to_mount = subvol_paths[mount_subvol_num]
+ self.cephfs_mntpt = path_to_mount
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-29 07:31:39 +0000