ceph/teuthology/task/qemu.py
Josh Durgin 38f6a78c71 Add a task to run a test against rbd inside of qemu.
For now this task does not setup networking for the vm,
and simply runs an executable downloaded from a specified url.

It does support adding multiple rbd devices, but making use
of that with e.g. xfstests requires a bit more work.
2012-06-21 18:44:16 -07:00

303 lines
9.9 KiB
Python

from cStringIO import StringIO
import contextlib
import logging
import os
from teuthology import misc as teuthology
from teuthology import contextutil
from teuthology.task import rbd
from ..orchestra import run
log = logging.getLogger(__name__)
DEFAULT_NUM_RBD = 1
DEFAULT_IMAGE_URL = 'http://ceph.com/qa/ubuntu-12.04.qcow2'
DEFAULT_MEM = 1024 # in megabytes
@contextlib.contextmanager
def create_dirs(ctx, config):
for client, client_config in config.iteritems():
assert 'test' in client_config, 'You must specify a test to run'
(remote,) = ctx.cluster.only(client).remotes.keys()
remote.run(
args=[
'install', '-d', '-m0755', '--',
'/tmp/cephtest/qemu',
'/tmp/cephtest/archive/qemu',
]
)
try:
yield
finally:
for client, client_config in config.iteritems():
assert 'test' in client_config, 'You must specify a test to run'
(remote,) = ctx.cluster.only(client).remotes.keys()
remote.run(
args=[
'rmdir', '/tmp/cephtest/qemu', run.Raw('||'), 'true',
]
)
@contextlib.contextmanager
def generate_iso(ctx, config):
log.info('generating iso...')
for client, client_config in config.iteritems():
assert 'test' in client_config, 'You must specify a test to run'
src_dir = os.path.dirname(__file__)
userdata_path = os.path.join('/tmp/cephtest/qemu', 'userdata.' + client)
metadata_path = os.path.join('/tmp/cephtest/qemu', 'metadata.' + client)
with file(os.path.join(src_dir, 'userdata_setup.yaml'), 'rb') as f:
test_setup = ''.join(f.readlines())
with file(os.path.join(src_dir, 'userdata_teardown.yaml'), 'rb') as f:
test_teardown = ''.join(f.readlines())
user_data = test_setup
if client_config.get('type', 'filesystem') == 'filesystem':
for i in xrange(0, client_config.get('num_rbd', DEFAULT_NUM_RBD)):
dev_letter = chr(ord('b') + i)
user_data += """
- |
#!/bin/bash
mkdir /mnt/test_{dev_letter}
mkfs -t xfs /dev/vd{dev_letter}
mount -t xfs /dev/vd{dev_letter} /mnt/test_{dev_letter}
""".format(dev_letter=dev_letter)
# this may change later to pass the directories as args to the
# script or something. xfstests needs that.
user_data += """
- |
#!/bin/bash
test -d /mnt/test_b && cd /mnt/test_b
/mnt/cdrom/test.sh > /mnt/log/test.log 2>&1 && touch /mnt/log/success
""" + test_teardown
(remote,) = ctx.cluster.only(client).remotes.keys()
teuthology.write_file(remote, userdata_path, StringIO(user_data))
with file(os.path.join(src_dir, 'metadata.yaml'), 'rb') as f:
teuthology.write_file(remote, metadata_path, f)
test_file = '/tmp/cephtest/qemu/{client}.test.sh'.format(client=client)
remote.run(
args=[
'wget', '-nv', '-O', test_file,
client_config['test'],
run.Raw('&&'),
'chmod', '755', test_file,
],
)
remote.run(
args=[
'genisoimage', '-quiet', '-input-charset', 'utf-8',
'-volid', 'cidata', '-joliet', '-rock',
'-o', '/tmp/cephtest/qemu/{client}.iso'.format(client=client),
'-graft-points',
'user-data={userdata}'.format(userdata=userdata_path),
'meta-data={metadata}'.format(metadata=metadata_path),
'test.sh={file}'.format(file=test_file),
],
)
try:
yield
finally:
for client in config.iterkeys():
(remote,) = ctx.cluster.only(client).remotes.keys()
remote.run(
args=[
'rm', '-f',
'/tmp/cephtest/qemu/{client}.iso'.format(client=client),
os.path.join('/tmp/cephtest/qemu', 'userdata.' + client),
os.path.join('/tmp/cephtest/qemu', 'metadata.' + client),
'/tmp/cephtest/qemu/{client}.test.sh'.format(client=client),
],
)
@contextlib.contextmanager
def download_image(ctx, config):
log.info('downloading base image')
for client, client_config in config.iteritems():
(remote,) = ctx.cluster.only(client).remotes.keys()
base_file = '/tmp/cephtest/qemu/base.{client}.qcow2'.format(client=client)
remote.run(
args=[
'wget', '-nv', '-O', base_file, DEFAULT_IMAGE_URL,
]
)
try:
yield
finally:
log.debug('cleaning up base image files')
for client in config.iterkeys():
base_file = '/tmp/cephtest/qemu/base.{client}.qcow2'.format(
client=client,
)
(remote,) = ctx.cluster.only(client).remotes.keys()
remote.run(
args=[
'rm', '-f', base_file,
],
)
@contextlib.contextmanager
def run_qemu(ctx, config):
procs = []
for client, client_config in config.iteritems():
(remote,) = ctx.cluster.only(client).remotes.keys()
log_dir = '/tmp/cephtest/archive/qemu/{client}'.format(client=client)
remote.run(
args=[
'mkdir', log_dir,
]
)
base_file = '/tmp/cephtest/qemu/base.{client}.qcow2'.format(client=client)
args=[
run.Raw('LD_LIBRARY_PATH=/tmp/cephtest/binary/usr/local/lib'),
'/tmp/cephtest/enable-coredump',
'/tmp/cephtest/binary/usr/local/bin/ceph-coverage',
'/tmp/cephtest/archive/coverage',
'/tmp/cephtest/daemon-helper',
'term',
'kvm', '-enable-kvm', '-nographic',
'-m', str(client_config.get('memory', DEFAULT_MEM)),
# base OS device
'-drive',
'file={base},format=qcow2,if=virtio'.format(base=base_file),
# cd holding metadata for cloud-init
'-cdrom', '/tmp/cephtest/qemu/{client}.iso'.format(client=client),
# virtio 9p fs for logging
'-fsdev',
'local,id=log,path={log},security_model=none'.format(log=log_dir),
'-device',
'virtio-9p-pci,fsdev=log,mount_tag=test_log',
]
for i in xrange(client_config.get('num_rbd', DEFAULT_NUM_RBD)):
args.extend([
'-drive',
'file=rbd:rbd/{img}:conf={conf}:id={id},format=rbd,if=virtio'.format(
conf='/tmp/cephtest/ceph.conf',
img='{client}.{num}'.format(client=client, num=i),
id=client[len('client.'):],
),
])
log.info('starting qemu...')
procs.append(
remote.run(
args=args,
logger=log.getChild(client),
stdin=run.PIPE,
wait=False,
)
)
try:
yield
finally:
log.info('waiting for qemu tests to finish...')
run.wait(procs)
log.debug('checking that qemu tests succeeded...')
for client in config.iterkeys():
(remote,) = ctx.cluster.only(client).remotes.keys()
remote.run(
args=[
'test', '-f',
'/tmp/cephtest/archive/qemu/{client}/success'.format(
client=client
),
],
)
@contextlib.contextmanager
def task(ctx, config):
"""
Run a test inside of QEMU on top of rbd. Only one test
is supported per client.
For example, you can specify which clients to run on::
tasks:
- ceph:
- qemu:
client.0:
test: http://ceph.com/qa/test.sh
client.1:
test: http://ceph.com/qa/test2.sh
Or use the same settings on all clients:
tasks:
- ceph:
- qemu:
all:
test: http://ceph.com/qa/test.sh
For tests that don't need a filesystem, set type to block::
tasks:
- ceph:
- qemu:
client.0:
test: http://ceph.com/qa/test.sh
type: block
The test should be configured to run on /dev/vdb and later
devices.
If you want to run a test that uses more than one rbd image,
specify how many images to use::
tasks:
- ceph:
- qemu:
client.0:
test: http://ceph.com/qa/test.sh
type: block
num_rbd: 2
You can set the amount of memory the VM has (default is 1024 MB)::
tasks:
- ceph:
- qemu:
client.0:
test: http://ceph.com/qa/test.sh
memory: 512 # megabytes
"""
assert isinstance(config, dict), \
"task qemu only supports a dictionary for configuration"
config = teuthology.replace_all_with_clients(ctx.cluster, config)
managers = []
for client, client_config in config.iteritems():
num_rbd = client_config.get('num_rbd', 1)
assert num_rbd > 0, 'at least one rbd device must be used'
for i in xrange(num_rbd):
create_config = {
client: {
'image_name':
'{client}.{num}'.format(client=client, num=i),
}
}
managers.append(
lambda create_config=create_config:
rbd.create_image(ctx=ctx, config=create_config)
)
managers.extend([
lambda: create_dirs(ctx=ctx, config=config),
lambda: generate_iso(ctx=ctx, config=config),
lambda: download_image(ctx=ctx, config=config),
lambda: run_qemu(ctx=ctx, config=config),
])
with contextutil.nested(*managers):
yield