mirror of
https://github.com/ceph/ceph
synced 2024-12-14 23:46:28 +00:00
597 lines
20 KiB
Python
597 lines
20 KiB
Python
import argparse
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import json
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import logging
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import subprocess
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import urllib
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import yaml
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import re
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import collections
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import tempfile
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import os
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from teuthology import lockstatus as ls
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from teuthology import misc as teuthology
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log = logging.getLogger(__name__)
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def lock_many(ctx, num, machinetype, user=None, description=None):
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if user is None:
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user = teuthology.get_user()
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success, content, status = ls.send_request('POST', ls._lock_url(ctx),
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urllib.urlencode(dict(
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user=user,
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num=num,
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machinetype=machinetype,
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desc=description,
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)))
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if success:
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machines = json.loads(content)
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log.debug('locked {machines}'.format(machines=', '.join(machines.keys())))
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return machines
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if status == 503:
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log.error('Insufficient nodes available to lock %d nodes.', num)
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else:
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log.error('Could not lock %d nodes, reason: unknown.', num)
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return []
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def lock(ctx, name, user=None):
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if user is None:
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user = teuthology.get_user()
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success, _, _ = ls.send_request('POST', ls._lock_url(ctx) + '/' + name,
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urllib.urlencode(dict(user=user)))
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if success:
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log.debug('locked %s as %s', name, user)
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else:
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log.error('failed to lock %s', name)
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return success
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def unlock(ctx, name, user=None):
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if user is None:
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user = teuthology.get_user()
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success, _ , _ = ls.send_request('DELETE', ls._lock_url(ctx) + '/' + name + '?' + \
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urllib.urlencode(dict(user=user)))
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if success:
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log.debug('unlocked %s', name)
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if not destroy_if_vm(ctx, name):
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log.error('downburst destroy failed for %s',name)
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else:
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log.error('failed to unlock %s', name)
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return success
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def list_locks(ctx):
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success, content, _ = ls.send_request('GET', ls._lock_url(ctx))
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if success:
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return json.loads(content)
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return None
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def update_lock(ctx, name, description=None, status=None, sshpubkey=None):
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updated = {}
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if description is not None:
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updated['desc'] = description
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if status is not None:
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updated['status'] = status
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if sshpubkey is not None:
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updated['sshpubkey'] = sshpubkey
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if updated:
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success, _, _ = ls.send_request('PUT', ls._lock_url(ctx) + '/' + name,
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body=urllib.urlencode(updated),
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headers={'Content-type': 'application/x-www-form-urlencoded'})
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return success
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return True
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def _positive_int(string):
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value = int(string)
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if value < 1:
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raise argparse.ArgumentTypeError(
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'{string} is not positive'.format(string=string))
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return value
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def canonicalize_hostname(s):
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if re.match('ubuntu@.*\.front\.sepia\.ceph\.com', s) is None:
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s = 'ubuntu@' + s + '.front.sepia.ceph.com'
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return s
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def main():
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parser = argparse.ArgumentParser(description="""
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Lock, unlock, or query lock status of machines.
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""")
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parser.add_argument(
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'-v', '--verbose',
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action='store_true',
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default=False,
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help='be more verbose',
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)
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group = parser.add_mutually_exclusive_group(required=True)
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group.add_argument(
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'--list',
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action='store_true',
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default=False,
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help='Show lock info for machines owned by you, or only machines specified. Can be restricted by --owner, --status, and --locked.',
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)
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group.add_argument(
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'--list-targets',
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action='store_true',
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default=False,
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help='Show lock info for all machines, or only machines specified, in targets: yaml format. Can be restricted by --owner, --status, and --locked.',
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)
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group.add_argument(
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'--lock',
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action='store_true',
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default=False,
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help='lock particular machines',
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)
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group.add_argument(
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'--unlock',
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action='store_true',
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default=False,
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help='unlock particular machines',
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)
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group.add_argument(
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'--lock-many',
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dest='num_to_lock',
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type=_positive_int,
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help='lock this many machines',
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)
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group.add_argument(
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'--update',
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action='store_true',
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default=False,
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help='update the description or status of some machines',
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)
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group.add_argument(
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'--summary',
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action='store_true',
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default=False,
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help='summarize locked-machine counts by owner',
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)
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parser.add_argument(
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'-a', '--all',
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action='store_true',
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default=False,
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help='list all machines, not just those owned by you',
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)
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parser.add_argument(
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'--owner',
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default=None,
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help='owner of the lock(s) (must match to unlock a machine)',
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)
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parser.add_argument(
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'-f',
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action='store_true',
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default=False,
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help='don\'t exit after the first error, continue locking or unlocking other machines',
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)
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parser.add_argument(
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'--desc',
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default=None,
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help='lock description',
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)
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parser.add_argument(
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'--desc-pattern',
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default=None,
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help='lock description',
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)
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parser.add_argument(
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'--machine-type',
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default='plana',
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help='Type of machine to lock',
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)
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parser.add_argument(
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'--status',
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default=None,
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choices=['up', 'down'],
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help='whether a machine is usable for testing',
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)
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parser.add_argument(
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'--locked',
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default=None,
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choices=['true', 'false'],
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help='whether a machine is locked',
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)
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parser.add_argument(
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'--brief',
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action='store_true',
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default=False,
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help='Shorten information reported from --list',
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)
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parser.add_argument(
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'-t', '--targets',
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dest='targets',
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default=None,
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help='input yaml containing targets',
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)
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parser.add_argument(
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'machines',
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metavar='MACHINE',
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default=[],
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nargs='*',
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help='machines to operate on',
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)
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parser.add_argument(
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'--vm-type',
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default='ubuntu',
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help='virtual machine type',
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)
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ctx = parser.parse_args()
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loglevel = logging.ERROR
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if ctx.verbose:
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loglevel = logging.DEBUG
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logging.basicConfig(
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level=loglevel,
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)
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teuthology.read_config(ctx)
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ret = 0
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user = ctx.owner
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machines = [canonicalize_hostname(m) for m in ctx.machines]
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machines_to_update = []
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if ctx.targets:
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try:
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with file(ctx.targets) as f:
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g = yaml.safe_load_all(f)
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for new in g:
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if 'targets' in new:
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for t in new['targets'].iterkeys():
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machines.append(t)
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except IOError, e:
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raise argparse.ArgumentTypeError(str(e))
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if ctx.f:
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assert ctx.lock or ctx.unlock, \
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'-f is only supported by --lock and --unlock'
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if machines:
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assert ctx.lock or ctx.unlock or ctx.list or ctx.list_targets \
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or ctx.update, \
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'machines cannot be specified with that operation'
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else:
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assert ctx.num_to_lock or ctx.list or ctx.list_targets or ctx.summary,\
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'machines must be specified for that operation'
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if ctx.all:
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assert ctx.list or ctx.list_targets, \
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'--all can only be used with --list and --list-targets'
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assert ctx.owner is None, \
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'--all and --owner are mutually exclusive'
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assert not machines, \
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'--all and listing specific machines are incompatible'
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if ctx.brief:
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assert ctx.list, '--brief only applies to --list'
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if ctx.list or ctx.list_targets:
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assert ctx.desc is None, '--desc does nothing with --list'
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if machines:
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statuses = [ls.get_status(ctx, machine) for machine in machines]
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else:
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statuses = list_locks(ctx)
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vmachines = []
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for vmachine in statuses:
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if vmachine['vpshost']:
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if vmachine['locked']:
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vmachines.append(vmachine['name'])
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if vmachines:
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# Avoid ssh-keyscans for everybody when listing all machines
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# Listing specific machines will update the keys.
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if machines:
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scan_for_locks(ctx, vmachines)
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statuses = [ls.get_status(ctx, machine) for machine in machines]
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else:
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statuses = list_locks(ctx)
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if statuses:
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if not machines and ctx.owner is None and not ctx.all:
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ctx.owner = teuthology.get_user()
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if ctx.owner is not None:
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statuses = [status for status in statuses \
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if status['locked_by'] == ctx.owner]
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if ctx.status is not None:
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statuses = [status for status in statuses \
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if status['up'] == (ctx.status == 'up')]
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if ctx.locked is not None:
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statuses = [status for status in statuses \
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if status['locked'] == (ctx.locked == 'true')]
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if ctx.desc is not None:
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statuses = [status for status in statuses \
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if status['description'] == ctx.desc]
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if ctx.desc_pattern is not None:
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statuses = [status for status in statuses \
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if status['description'] is not None and \
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status['description'].find(ctx.desc_pattern) >= 0]
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if ctx.list:
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if ctx.brief:
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for s in statuses:
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locked = "un" if s['locked'] == 0 else " "
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mo = re.match('\w+@(\w+?)\..*', s['name'])
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host = mo.group(1) if mo else s['name']
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print '{host} {locked}locked {owner} "{desc}"'.format(
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locked = locked, host = host,
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owner=s['locked_by'], desc=s['description'])
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else:
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print json.dumps(statuses, indent=4)
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else:
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frag = { 'targets': {} }
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for f in statuses:
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frag['targets'][f['name']] = f['sshpubkey']
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print yaml.safe_dump(frag, default_flow_style=False)
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else:
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log.error('error retrieving lock statuses')
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ret = 1
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elif ctx.summary:
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do_summary(ctx)
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return 0
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elif ctx.lock:
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for machine in machines:
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if not lock(ctx, machine, user):
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ret = 1
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if not ctx.f:
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return ret
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else:
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machines_to_update.append(machine)
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create_if_vm(ctx, machine)
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elif ctx.unlock:
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for machine in machines:
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if not unlock(ctx, machine, user):
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ret = 1
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if not ctx.f:
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return ret
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else:
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machines_to_update.append(machine)
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destroy_if_vm(ctx, machine)
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elif ctx.num_to_lock:
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result = lock_many(ctx, ctx.num_to_lock, ctx.machine_type, user)
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if not result:
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ret = 1
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else:
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machines_to_update = result.keys()
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if ctx.machine_type == 'vps':
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print "Locks successful"
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print "Unable to display keys at this time (virtual machines are rebooting)."
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print "Please run teuthology-lock --list-targets once these machines come up."
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else:
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print yaml.safe_dump(dict(targets=result), default_flow_style=False)
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elif ctx.update:
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assert ctx.desc is not None or ctx.status is not None, \
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'you must specify description or status to update'
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assert ctx.owner is None, 'only description and status may be updated'
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machines_to_update = machines
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if ctx.desc is not None or ctx.status is not None:
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for machine in machines_to_update:
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update_lock(ctx, machine, ctx.desc, ctx.status)
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return ret
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def update_hostkeys():
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parser = argparse.ArgumentParser(description="""
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Update any hostkeys that have changed. You can list specific machines
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to run on, or use -a to check all of them automatically.
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""")
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parser.add_argument(
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'-t', '--targets',
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default=None,
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help='input yaml containing targets to check',
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)
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parser.add_argument(
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'machines',
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metavar='MACHINES',
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default=[],
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nargs='*',
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help='hosts to check for updated keys',
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)
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parser.add_argument(
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'-v', '--verbose',
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action='store_true',
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default=False,
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help='be more verbose',
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)
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parser.add_argument(
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'-a', '--all',
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action='store_true',
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default=False,
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help='update hostkeys of all machines in the db',
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)
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ctx = parser.parse_args()
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loglevel = logging.ERROR
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if ctx.verbose:
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loglevel = logging.DEBUG
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logging.basicConfig(
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level=loglevel,
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)
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teuthology.read_config(ctx)
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assert ctx.all or ctx.targets or ctx.machines, 'You must specify machines to update'
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if ctx.all:
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assert not ctx.targets and not ctx.machines, \
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'You can\'t specify machines with the --all option'
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machines = [canonicalize_hostname(m) for m in ctx.machines]
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if ctx.targets:
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try:
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with file(ctx.targets) as f:
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g = yaml.safe_load_all(f)
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for new in g:
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if 'targets' in new:
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for t in new['targets'].iterkeys():
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machines.append(t)
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except IOError, e:
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raise argparse.ArgumentTypeError(str(e))
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return scan_for_locks(ctx, machines)
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def keyscan_check(ctx, machines):
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locks = list_locks(ctx)
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current_locks = {}
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for lock in locks:
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current_locks[lock['name']] = lock
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if hasattr(ctx, 'all'):
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if ctx.all:
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machines = current_locks.keys()
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for i, machine in enumerate(machines):
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if '@' in machine:
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_, machines[i] = machine.rsplit('@')
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args = ['ssh-keyscan']
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args.extend(machines)
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p = subprocess.Popen(
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args=args,
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stdout=subprocess.PIPE,
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)
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out, _ = p.communicate()
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assert p.returncode == 0, 'ssh-keyscan failed'
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return (out, current_locks)
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def update_keys(ctx, out, current_locks):
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ret = 0
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for key_entry in out.splitlines():
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hostname, pubkey = key_entry.split(' ', 1)
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# TODO: separate out user
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full_name = 'ubuntu@{host}'.format(host=hostname)
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log.info('Checking %s', full_name)
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assert full_name in current_locks, 'host is not in the database!'
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if current_locks[full_name]['sshpubkey'] != pubkey:
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log.info('New key found. Updating...')
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if not update_lock(ctx, full_name, sshpubkey=pubkey):
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log.error('failed to update %s!', full_name)
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ret = 1
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return ret
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def scan_for_locks(ctx, machines):
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out, current_locks = keyscan_check(ctx, machines)
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return update_keys(ctx, out, current_locks)
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def do_summary(ctx):
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lockd = collections.defaultdict(lambda: [0,0,'unknown'])
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for l in list_locks(ctx):
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if l['type'] != ctx.machine_type:
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continue
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who = l['locked_by'] if l['locked'] == 1 else '(free)', l['type']
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lockd[who][0] += 1
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lockd[who][1] += l['up'] # up is 1 or 0
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lockd[who][2] = l['type']
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locks = sorted([p for p in lockd.iteritems()], key=lambda sort: (sort[1][2],sort[1][0]))
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total_count, total_up = 0, 0
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print "TYPE COUNT UP OWNER"
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for (owner, (count, upcount, machinetype)) in locks:
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#if machinetype == spectype:
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print "{machinetype:8s} {count:3d} {up:3d} {owner}".format(count = count,
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up = upcount, owner = owner[0], machinetype=machinetype)
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total_count += count
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total_up += upcount
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print " --- ---"
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print "{cnt:12d} {up:3d}".format(cnt = total_count, up = total_up)
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def decanonicalize_hostname(s):
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if re.match('ubuntu@.*\.front\.sepia\.ceph\.com', s):
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s = s[len('ubuntu@'): -len('.front.sepia.ceph.com')]
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return s
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def _get_downburst_exec():
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"""
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First check for downburst in the user's path.
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Then check in ~/src, ~ubuntu/src, and ~teuthology/src.
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Return '' if no executable downburst is found.
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"""
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path = os.environ.get('PATH', None)
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if path:
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for p in os.environ.get('PATH','').split(os.pathsep):
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pth = os.path.join(p, 'downburst')
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if os.access(pth, os.X_OK):
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return pth
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import pwd
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little_old_me = pwd.getpwuid(os.getuid()).pw_name
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for user in [little_old_me, 'ubuntu', 'teuthology']:
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pth = "/home/%s/src/downburst/virtualenv/bin/downburst" % user
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if os.access(pth, os.X_OK):
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return pth
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return ''
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#
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# Use downburst to create a virtual machine
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#
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def create_if_vm(ctx, machine_name):
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status_info = ls.get_status(ctx, machine_name)
|
|
phys_host = status_info['vpshost']
|
|
if not phys_host:
|
|
return False
|
|
try:
|
|
vm_type = ctx.vm_type
|
|
except AttributeError:
|
|
vm_type = 'ubuntu'
|
|
createMe = decanonicalize_hostname(machine_name)
|
|
with tempfile.NamedTemporaryFile() as tmp:
|
|
lcnfg = ctx.teuthology_config
|
|
file_out = lcnfg.get('downburst')
|
|
if not file_out:
|
|
file_info = {}
|
|
file_info['disk-size'] = lcnfg.get('disk-size', '30G')
|
|
file_info['ram'] = lcnfg.get('ram', '4G')
|
|
file_info['cpus'] = lcnfg.get('cpus', 1)
|
|
file_info['networks'] = lcnfg.get('networks',
|
|
[{'source' : 'front'}])
|
|
file_info['distro'] = lcnfg.get('distro', vm_type.lower())
|
|
file_info['additional-disks'] = lcnfg.get(
|
|
'additional-disks', 3)
|
|
file_info['additional-disks-size'] = lcnfg.get(
|
|
'additional-disks-size', '200G')
|
|
file_info['arch'] = lcnfg.get('arch', 'x86_64')
|
|
file_out = {'downburst': file_info}
|
|
yaml.safe_dump(file_out, tmp)
|
|
metadata = "--meta-data=%s" % tmp.name
|
|
dbrst = _get_downburst_exec()
|
|
if not dbrst:
|
|
log.info("Error: no downburst executable found")
|
|
return False
|
|
p = subprocess.Popen([dbrst, '-c', phys_host,
|
|
'create', metadata, createMe],
|
|
stdout=subprocess.PIPE,stderr=subprocess.PIPE,)
|
|
owt,err = p.communicate()
|
|
if err:
|
|
log.info("Downburst command to create %s failed: %s" %
|
|
(machine_name,err))
|
|
else:
|
|
log.info("%s created: %s" % (machine_name,owt))
|
|
return True
|
|
#
|
|
# Use downburst to destroy a virtual machine
|
|
#
|
|
def destroy_if_vm(ctx, machine_name):
|
|
"""
|
|
Return False only on vm downburst failures.
|
|
"""
|
|
status_info = ls.get_status(ctx, machine_name)
|
|
phys_host = status_info['vpshost']
|
|
if not phys_host:
|
|
return True
|
|
destroyMe = decanonicalize_hostname(machine_name)
|
|
dbrst = _get_downburst_exec()
|
|
if not dbrst:
|
|
log.info("Error: no downburst executable found")
|
|
return False
|
|
p = subprocess.Popen([dbrst, '-c', phys_host,
|
|
'destroy', destroyMe],
|
|
stdout=subprocess.PIPE,stderr=subprocess.PIPE,)
|
|
owt,err = p.communicate()
|
|
if err:
|
|
log.info("Error occurred while deleting %s" % destroyMe)
|
|
return False
|
|
else:
|
|
log.info("%s destroyed: %s" % (machine_name,owt))
|
|
return True
|
|
|