mirror of
https://github.com/ceph/ceph
synced 2024-12-21 19:02:10 +00:00
504 lines
15 KiB
Python
504 lines
15 KiB
Python
from cStringIO import StringIO
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import os
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import logging
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import configobj
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import getpass
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import socket
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import time
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import urllib2
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import urlparse
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import yaml
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import json
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from .orchestra import run
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log = logging.getLogger(__name__)
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def get_ceph_binary_url(package=None,
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branch=None, tag=None, sha1=None, dist=None,
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flavor=None, format=None, arch=None):
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BASE = 'http://gitbuilder.ceph.com/{package}-{format}-{dist}-{arch}-{flavor}/'.format(
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package=package,
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flavor=flavor,
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arch=arch,
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format=format,
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dist=dist
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)
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if sha1 is not None:
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assert branch is None, "cannot set both sha1 and branch"
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assert tag is None, "cannot set both sha1 and tag"
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else:
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# gitbuilder uses remote-style ref names for branches, mangled to
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# have underscores instead of slashes; e.g. origin_master
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if tag is not None:
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ref = tag
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assert branch is None, "cannot set both branch and tag"
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else:
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if branch is None:
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branch = 'master'
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ref = branch
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sha1_url = urlparse.urljoin(BASE, 'ref/{ref}/sha1'.format(ref=ref))
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log.debug('Translating ref to sha1 using url %s', sha1_url)
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sha1_fp = urllib2.urlopen(sha1_url)
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sha1 = sha1_fp.read().rstrip('\n')
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sha1_fp.close()
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log.debug('Using %s %s sha1 %s', package, format, sha1)
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bindir_url = urlparse.urljoin(BASE, 'sha1/{sha1}/'.format(sha1=sha1))
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return (sha1, bindir_url)
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def feed_many_stdins(fp, processes):
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while True:
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data = fp.read(8192)
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if not data:
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break
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for proc in processes:
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proc.stdin.write(data)
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def feed_many_stdins_and_close(fp, processes):
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feed_many_stdins(fp, processes)
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for proc in processes:
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proc.stdin.close()
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def get_mons(roles, ips):
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mons = {}
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mon_ports = {}
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mon_id = 0
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for idx, roles in enumerate(roles):
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for role in roles:
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if not role.startswith('mon.'):
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continue
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if ips[idx] not in mon_ports:
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mon_ports[ips[idx]] = 6789
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else:
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mon_ports[ips[idx]] += 1
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addr = '{ip}:{port}'.format(
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ip=ips[idx],
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port=mon_ports[ips[idx]],
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)
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mon_id += 1
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mons[role] = addr
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assert mons
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return mons
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def generate_caps(type_):
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defaults = dict(
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osd=dict(
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mon='allow *',
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osd='allow *',
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),
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mds=dict(
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mon='allow *',
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osd='allow *',
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mds='allow',
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),
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client=dict(
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mon='allow rw',
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osd='allow rwx pool=data,rbd',
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mds='allow',
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),
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)
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for subsystem, capability in defaults[type_].items():
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yield '--cap'
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yield subsystem
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yield capability
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def skeleton_config(roles, ips):
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"""
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Returns a ConfigObj that's prefilled with a skeleton config.
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Use conf[section][key]=value or conf.merge to change it.
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Use conf.write to write it out, override .filename first if you want.
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"""
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path = os.path.join(os.path.dirname(__file__), 'ceph.conf')
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conf = configobj.ConfigObj(path, file_error=True)
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mons = get_mons(roles=roles, ips=ips)
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for role, addr in mons.iteritems():
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conf.setdefault(role, {})
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conf[role]['mon addr'] = addr
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# set up standby mds's
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for roles in roles:
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for role in roles:
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if role.startswith('mds.') and role.endswith('-s'):
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conf.setdefault(role, {})
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conf[role]['mds standby for name'] = role[:-2]
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return conf
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def roles_of_type(roles_for_host, type_):
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prefix = '{type}.'.format(type=type_)
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for name in roles_for_host:
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if not name.startswith(prefix):
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continue
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id_ = name[len(prefix):]
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yield id_
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def all_roles_of_type(cluster, type_):
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prefix = '{type}.'.format(type=type_)
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for _, roles_for_host in cluster.remotes.iteritems():
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for name in roles_for_host:
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if not name.startswith(prefix):
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continue
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id_ = name[len(prefix):]
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yield id_
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def is_type(type_):
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"""
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Returns a matcher function for whether role is of type given.
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"""
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prefix = '{type}.'.format(type=type_)
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def _is_type(role):
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return role.startswith(prefix)
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return _is_type
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def num_instances_of_type(cluster, type_):
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remotes_and_roles = cluster.remotes.items()
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roles = [roles for (remote, roles) in remotes_and_roles]
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prefix = '{type}.'.format(type=type_)
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num = sum(sum(1 for role in hostroles if role.startswith(prefix)) for hostroles in roles)
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return num
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def create_simple_monmap(remote, conf):
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"""
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Writes a simple monmap based on current ceph.conf into <tmpdir>/monmap.
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Assumes ceph_conf is up to date.
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Assumes mon sections are named "mon.*", with the dot.
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"""
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def gen_addresses():
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for section, data in conf.iteritems():
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PREFIX = 'mon.'
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if not section.startswith(PREFIX):
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continue
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name = section[len(PREFIX):]
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addr = data['mon addr']
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yield (name, addr)
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addresses = list(gen_addresses())
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assert addresses, "There are no monitors in config!"
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log.debug('Ceph mon addresses: %s', addresses)
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args = [
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'/tmp/cephtest/enable-coredump',
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'/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
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'/tmp/cephtest/archive/coverage',
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'/tmp/cephtest/binary/usr/local/bin/monmaptool',
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'--create',
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'--clobber',
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]
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for (name, addr) in addresses:
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args.extend(('--add', name, addr))
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args.extend([
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'--print',
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'/tmp/cephtest/monmap',
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])
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remote.run(
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args=args,
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)
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def write_file(remote, path, data):
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remote.run(
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args=[
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'python',
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'-c',
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'import shutil, sys; shutil.copyfileobj(sys.stdin, file(sys.argv[1], "wb"))',
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path,
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],
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stdin=data,
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)
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def sudo_write_file(remote, path, data):
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remote.run(
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args=[
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'sudo',
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'python',
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'-c',
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'import shutil, sys; shutil.copyfileobj(sys.stdin, file(sys.argv[1], "wb"))',
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path,
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],
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stdin=data,
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)
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def get_file(remote, path):
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"""
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Read a file from remote host into memory.
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"""
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proc = remote.run(
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args=[
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'cat',
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'--',
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path,
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],
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stdout=StringIO(),
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)
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data = proc.stdout.getvalue()
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return data
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def get_scratch_devices(remote):
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"""
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Read the scratch disk list from remote host
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"""
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devs = []
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try:
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file_data = get_file(remote, "/scratch_devs")
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devs = file_data.split()
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except:
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devs = [
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'/dev/sda',
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'/dev/sdb',
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'/dev/sdc',
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'/dev/sdd',
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'/dev/sde',
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'/dev/sdf',
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'/dev/sdg',
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'/dev/sdh',
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'/dev/sdi',
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'/dev/sdj',
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'/dev/sdk',
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'/dev/sdl',
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'/dev/sdm',
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'/dev/sdn',
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'/dev/sdo',
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'/dev/sdp',
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]
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retval = []
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for dev in devs:
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try:
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remote.run(
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args=[
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# node exists
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'stat',
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dev,
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run.Raw('&&'),
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# readable
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'sudo', 'dd', 'if=%s' % dev, 'of=/dev/null', 'count=1',
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run.Raw('&&'),
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# not mounted
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run.Raw('!'),
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'mount',
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run.Raw('|'),
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'grep', '-q', dev,
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]
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)
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retval.append(dev)
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except:
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pass
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return retval
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def wait_until_healthy(remote):
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"""Wait until a Ceph cluster is healthy."""
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while True:
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r = remote.run(
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args=[
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'/tmp/cephtest/enable-coredump',
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'/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
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'/tmp/cephtest/archive/coverage',
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'/tmp/cephtest/binary/usr/local/bin/ceph',
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'-c', '/tmp/cephtest/ceph.conf',
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'health',
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'--concise',
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],
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stdout=StringIO(),
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logger=log.getChild('health'),
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)
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out = r.stdout.getvalue()
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log.debug('Ceph health: %s', out.rstrip('\n'))
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if out.split(None, 1)[0] == 'HEALTH_OK':
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break
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time.sleep(1)
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def wait_until_osds_up(cluster, remote):
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"""Wait until all Ceph OSDs are booted."""
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num_osds = num_instances_of_type(cluster, 'osd')
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while True:
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r = remote.run(
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args=[
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'/tmp/cephtest/enable-coredump',
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'/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
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'/tmp/cephtest/archive/coverage',
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'/tmp/cephtest/binary/usr/local/bin/ceph',
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'-c', '/tmp/cephtest/ceph.conf',
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'--concise',
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'osd', 'dump', '--format=json'
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],
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stdout=StringIO(),
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logger=log.getChild('health'),
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)
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out = r.stdout.getvalue()
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j = json.loads('\n'.join(out.split('\n')[1:]))
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up = len(j['osds'])
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log.debug('%d of %d OSDs are up' % (up, num_osds))
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if up == num_osds:
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break
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time.sleep(1)
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def wait_until_fuse_mounted(remote, fuse, mountpoint):
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while True:
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proc = remote.run(
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args=[
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'stat',
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'--file-system',
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'--printf=%T\n',
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'--',
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mountpoint,
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],
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stdout=StringIO(),
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)
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fstype = proc.stdout.getvalue().rstrip('\n')
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if fstype == 'fuseblk':
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break
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log.debug('cfuse not yet mounted, got fs type {fstype!r}'.format(fstype=fstype))
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# it shouldn't have exited yet; exposes some trivial problems
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assert not fuse.exitstatus.ready()
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time.sleep(5)
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log.info('cfuse is mounted on %s', mountpoint)
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def reconnect(ctx, timeout):
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"""
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Connect to all the machines in ctx.cluster.
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Presumably, some of them won't be up. Handle this
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by waiting for them, unless the wait time exceeds
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the specified timeout.
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ctx needs to contain the cluster of machines you
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wish it to try and connect to, as well as a config
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holding the ssh keys for each of them. As long as it
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contains this data, you can construct a context
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that is a subset of your full cluster.
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"""
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log.info('Re-opening connections...')
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starttime = time.time()
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need_reconnect = ctx.cluster.remotes.keys()
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while need_reconnect:
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for remote in need_reconnect:
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try:
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log.info('trying to connect to %s', remote.name)
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from .orchestra import connection
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remote.ssh = connection.connect(
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user_at_host=remote.name,
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host_key=ctx.config['targets'][remote.name],
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keep_alive=True,
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)
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except Exception:
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if time.time() - starttime > timeout:
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raise
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else:
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need_reconnect.remove(remote)
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log.debug('waited {elapsed}'.format(elapsed=str(time.time() - starttime)))
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time.sleep(1)
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def write_secret_file(remote, role, filename):
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remote.run(
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args=[
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'/tmp/cephtest/enable-coredump',
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'/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
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'/tmp/cephtest/archive/coverage',
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'/tmp/cephtest/binary/usr/local/bin/ceph-authtool',
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'--name={role}'.format(role=role),
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'--print-key',
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'/tmp/cephtest/data/{role}.keyring'.format(role=role),
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run.Raw('>'),
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filename,
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],
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)
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def get_clients(ctx, roles):
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for role in roles:
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assert isinstance(role, basestring)
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PREFIX = 'client.'
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assert role.startswith(PREFIX)
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id_ = role[len(PREFIX):]
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(remote,) = ctx.cluster.only(role).remotes.iterkeys()
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yield (id_, remote)
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def get_user():
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return getpass.getuser() + '@' + socket.gethostname()
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def read_config(ctx):
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filename = os.path.join(os.environ['HOME'], '.teuthology.yaml')
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ctx.teuthology_config = {}
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with file(filename) as f:
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g = yaml.safe_load_all(f)
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for new in g:
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ctx.teuthology_config.update(new)
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def get_mon_names(ctx):
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mons = []
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for remote, roles in ctx.cluster.remotes.items():
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for role in roles:
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if not role.startswith('mon.'):
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continue
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mons.append(role)
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return mons
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# return the "first" mon (alphanumerically, for lack of anything better)
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def get_first_mon(ctx, config):
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firstmon = sorted(get_mon_names(ctx))[0]
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assert firstmon
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return firstmon
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def replace_all_with_clients(cluster, config):
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"""
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Converts a dict containing a key all to one
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mapping all clients to the value of config['all']
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"""
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assert isinstance(config, dict), 'config must be a dict'
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if 'all' not in config:
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return config
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norm_config = {}
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assert len(config) == 1, \
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"config cannot have 'all' and specific clients listed"
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for client in all_roles_of_type(cluster, 'client'):
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norm_config['client.{id}'.format(id=client)] = config['all']
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return norm_config
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def deep_merge(a, b):
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if a is None:
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return b
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if b is None:
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return a
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if isinstance(a, list):
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assert isinstance(b, list)
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a.extend(b)
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return a
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if isinstance(a, dict):
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assert isinstance(b, dict)
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for (k, v) in b.iteritems():
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if k in a:
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a[k] = deep_merge(a[k], v)
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else:
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a[k] = v
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return a
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return b
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def get_valgrind_args(name, v):
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if v is None:
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return []
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if not isinstance(v, list):
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v = [v]
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val_path = '/tmp/cephtest/archive/log/valgrind'
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if '--tool=memcheck' in v or '--tool=helgrind' in v:
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extra_args = [
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'/tmp/cephtest/chdir-coredump',
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'valgrind', '--xml=yes',
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'--xml-file={vdir}/{n}.log'.format(vdir=val_path, n=name)
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]
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else:
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extra_args = [
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'/tmp/cephtest/chdir-coredump',
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'valgrind',
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'--log-file={vdir}/{n}.log'.format(vdir=val_path, n=name)
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]
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extra_args.extend(v)
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log.debug('running %s under valgrind with args %s', name, extra_args)
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return extra_args
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