mirror of
https://github.com/ceph/ceph
synced 2024-12-27 05:53:20 +00:00
328 lines
11 KiB
Python
328 lines
11 KiB
Python
"""
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Qemu task
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"""
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from cStringIO import StringIO
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import contextlib
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import logging
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import os
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from teuthology import misc as teuthology
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from teuthology import contextutil
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from teuthology.task import rbd
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from ..orchestra import run
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log = logging.getLogger(__name__)
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DEFAULT_NUM_RBD = 1
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DEFAULT_IMAGE_URL = 'http://ceph.com/qa/ubuntu-12.04.qcow2'
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DEFAULT_MEM = 4096 # in megabytes
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@contextlib.contextmanager
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def create_dirs(ctx, config):
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"""
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Handle directory creation and cleanup
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"""
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testdir = teuthology.get_testdir(ctx)
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for client, client_config in config.iteritems():
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assert 'test' in client_config, 'You must specify a test to run'
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(remote,) = ctx.cluster.only(client).remotes.keys()
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remote.run(
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args=[
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'install', '-d', '-m0755', '--',
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'{tdir}/qemu'.format(tdir=testdir),
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'{tdir}/archive/qemu'.format(tdir=testdir),
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]
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)
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try:
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yield
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finally:
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for client, client_config in config.iteritems():
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assert 'test' in client_config, 'You must specify a test to run'
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(remote,) = ctx.cluster.only(client).remotes.keys()
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remote.run(
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args=[
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'rmdir', '{tdir}/qemu'.format(tdir=testdir), run.Raw('||'), 'true',
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]
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)
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@contextlib.contextmanager
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def generate_iso(ctx, config):
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"""Execute system commands to generate iso"""
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log.info('generating iso...')
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testdir = teuthology.get_testdir(ctx)
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for client, client_config in config.iteritems():
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assert 'test' in client_config, 'You must specify a test to run'
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src_dir = os.path.dirname(__file__)
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userdata_path = os.path.join(testdir, 'qemu', 'userdata.' + client)
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metadata_path = os.path.join(testdir, 'qemu', 'metadata.' + client)
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with file(os.path.join(src_dir, 'userdata_setup.yaml'), 'rb') as f:
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test_setup = ''.join(f.readlines())
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with file(os.path.join(src_dir, 'userdata_teardown.yaml'), 'rb') as f:
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test_teardown = ''.join(f.readlines())
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user_data = test_setup
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if client_config.get('type', 'filesystem') == 'filesystem':
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for i in xrange(0, client_config.get('num_rbd', DEFAULT_NUM_RBD)):
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dev_letter = chr(ord('b') + i)
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user_data += """
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- |
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#!/bin/bash
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mkdir /mnt/test_{dev_letter}
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mkfs -t xfs /dev/vd{dev_letter}
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mount -t xfs /dev/vd{dev_letter} /mnt/test_{dev_letter}
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""".format(dev_letter=dev_letter)
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# this may change later to pass the directories as args to the
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# script or something. xfstests needs that.
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user_data += """
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- |
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#!/bin/bash
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test -d /mnt/test_b && cd /mnt/test_b
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/mnt/cdrom/test.sh > /mnt/log/test.log 2>&1 && touch /mnt/log/success
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""" + test_teardown
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(remote,) = ctx.cluster.only(client).remotes.keys()
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teuthology.write_file(remote, userdata_path, StringIO(user_data))
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with file(os.path.join(src_dir, 'metadata.yaml'), 'rb') as f:
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teuthology.write_file(remote, metadata_path, f)
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test_file = '{tdir}/qemu/{client}.test.sh'.format(tdir=testdir, client=client)
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remote.run(
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args=[
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'wget', '-nv', '-O', test_file,
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client_config['test'],
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run.Raw('&&'),
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'chmod', '755', test_file,
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],
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)
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remote.run(
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args=[
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'genisoimage', '-quiet', '-input-charset', 'utf-8',
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'-volid', 'cidata', '-joliet', '-rock',
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'-o', '{tdir}/qemu/{client}.iso'.format(tdir=testdir, client=client),
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'-graft-points',
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'user-data={userdata}'.format(userdata=userdata_path),
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'meta-data={metadata}'.format(metadata=metadata_path),
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'test.sh={file}'.format(file=test_file),
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],
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)
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try:
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yield
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finally:
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for client in config.iterkeys():
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(remote,) = ctx.cluster.only(client).remotes.keys()
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remote.run(
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args=[
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'rm', '-f',
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'{tdir}/qemu/{client}.iso'.format(tdir=testdir, client=client),
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os.path.join(testdir, 'qemu', 'userdata.' + client),
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os.path.join(testdir, 'qemu', 'metadata.' + client),
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'{tdir}/qemu/{client}.test.sh'.format(tdir=testdir, client=client),
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],
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)
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@contextlib.contextmanager
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def download_image(ctx, config):
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"""Downland base image, remove image file when done"""
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log.info('downloading base image')
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testdir = teuthology.get_testdir(ctx)
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for client, client_config in config.iteritems():
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(remote,) = ctx.cluster.only(client).remotes.keys()
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base_file = '{tdir}/qemu/base.{client}.qcow2'.format(tdir=testdir, client=client)
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remote.run(
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args=[
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'wget', '-nv', '-O', base_file, DEFAULT_IMAGE_URL,
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]
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)
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try:
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yield
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finally:
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log.debug('cleaning up base image files')
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for client in config.iterkeys():
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base_file = '{tdir}/qemu/base.{client}.qcow2'.format(
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tdir=testdir,
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client=client,
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)
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(remote,) = ctx.cluster.only(client).remotes.keys()
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remote.run(
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args=[
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'rm', '-f', base_file,
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],
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)
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@contextlib.contextmanager
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def run_qemu(ctx, config):
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"""Setup kvm environment and start qemu"""
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procs = []
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testdir = teuthology.get_testdir(ctx)
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for client, client_config in config.iteritems():
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(remote,) = ctx.cluster.only(client).remotes.keys()
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log_dir = '{tdir}/archive/qemu/{client}'.format(tdir=testdir, client=client)
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remote.run(
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args=[
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'mkdir', log_dir, run.Raw('&&'),
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'sudo', 'modprobe', 'kvm',
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]
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)
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base_file = '{tdir}/qemu/base.{client}.qcow2'.format(tdir=testdir, client=client)
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args=[
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'adjust-ulimits',
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'ceph-coverage',
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'{tdir}/archive/coverage'.format(tdir=testdir),
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'daemon-helper',
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'term',
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'kvm', '-enable-kvm', '-nographic',
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'-m', str(client_config.get('memory', DEFAULT_MEM)),
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# base OS device
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'-drive',
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'file={base},format=qcow2,if=virtio'.format(base=base_file),
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# cd holding metadata for cloud-init
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'-cdrom', '{tdir}/qemu/{client}.iso'.format(tdir=testdir, client=client),
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# virtio 9p fs for logging
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'-fsdev',
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'local,id=log,path={log},security_model=none'.format(log=log_dir),
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'-device',
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'virtio-9p-pci,fsdev=log,mount_tag=test_log',
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]
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cachemode = 'none'
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ceph_config = ctx.ceph.conf.get('global', {})
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ceph_config.update(ctx.ceph.conf.get('client', {}))
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ceph_config.update(ctx.ceph.conf.get(client, {}))
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if ceph_config.get('rbd cache'):
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if ceph_config.get('rbd cache max dirty', 1) > 0:
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cachemode = 'writeback'
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else:
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cachemode = 'writethrough'
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for i in xrange(client_config.get('num_rbd', DEFAULT_NUM_RBD)):
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args.extend([
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'-drive',
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'file=rbd:rbd/{img}:id={id},format=rbd,if=virtio,cache={cachemode}'.format(
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img='{client}.{num}'.format(client=client, num=i),
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id=client[len('client.'):],
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cachemode=cachemode,
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),
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])
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log.info('starting qemu...')
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procs.append(
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remote.run(
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args=args,
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logger=log.getChild(client),
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stdin=run.PIPE,
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wait=False,
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)
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)
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try:
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yield
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finally:
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log.info('waiting for qemu tests to finish...')
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run.wait(procs)
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log.debug('checking that qemu tests succeeded...')
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for client in config.iterkeys():
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(remote,) = ctx.cluster.only(client).remotes.keys()
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remote.run(
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args=[
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'test', '-f',
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'{tdir}/archive/qemu/{client}/success'.format(
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tdir=testdir,
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client=client
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),
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],
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)
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@contextlib.contextmanager
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def task(ctx, config):
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"""
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Run a test inside of QEMU on top of rbd. Only one test
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is supported per client.
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For example, you can specify which clients to run on::
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tasks:
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- ceph:
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- qemu:
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client.0:
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test: http://ceph.com/qa/test.sh
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client.1:
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test: http://ceph.com/qa/test2.sh
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Or use the same settings on all clients:
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tasks:
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- ceph:
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- qemu:
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all:
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test: http://ceph.com/qa/test.sh
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For tests that don't need a filesystem, set type to block::
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tasks:
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- ceph:
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- qemu:
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client.0:
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test: http://ceph.com/qa/test.sh
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type: block
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The test should be configured to run on /dev/vdb and later
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devices.
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If you want to run a test that uses more than one rbd image,
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specify how many images to use::
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tasks:
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- ceph:
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- qemu:
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client.0:
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test: http://ceph.com/qa/test.sh
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type: block
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num_rbd: 2
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You can set the amount of memory the VM has (default is 1024 MB)::
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tasks:
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- ceph:
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- qemu:
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client.0:
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test: http://ceph.com/qa/test.sh
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memory: 512 # megabytes
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"""
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assert isinstance(config, dict), \
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"task qemu only supports a dictionary for configuration"
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config = teuthology.replace_all_with_clients(ctx.cluster, config)
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managers = []
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for client, client_config in config.iteritems():
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num_rbd = client_config.get('num_rbd', 1)
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assert num_rbd > 0, 'at least one rbd device must be used'
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for i in xrange(num_rbd):
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create_config = {
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client: {
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'image_name':
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'{client}.{num}'.format(client=client, num=i),
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}
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}
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managers.append(
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lambda create_config=create_config:
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rbd.create_image(ctx=ctx, config=create_config)
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)
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managers.extend([
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lambda: create_dirs(ctx=ctx, config=config),
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lambda: generate_iso(ctx=ctx, config=config),
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lambda: download_image(ctx=ctx, config=config),
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lambda: run_qemu(ctx=ctx, config=config),
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])
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with contextutil.nested(*managers):
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yield
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