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Diffstat (limited to 'src/ceph/qa/tasks/rbd.py')
| -rw-r--r-- | src/ceph/qa/tasks/rbd.py | 612 |
1 files changed, 612 insertions, 0 deletions
diff --git a/src/ceph/qa/tasks/rbd.py b/src/ceph/qa/tasks/rbd.py new file mode 100644 index 0000000..d45636a --- /dev/null +++ b/src/ceph/qa/tasks/rbd.py @@ -0,0 +1,612 @@ +""" +Rbd testing task +""" +import contextlib +import logging +import os +import tempfile + +from cStringIO import StringIO +from teuthology.orchestra import run +from teuthology import misc as teuthology +from teuthology import contextutil +from teuthology.parallel import parallel +from teuthology.task.common_fs_utils import generic_mkfs +from teuthology.task.common_fs_utils import generic_mount +from teuthology.task.common_fs_utils import default_image_name + +log = logging.getLogger(__name__) + +@contextlib.contextmanager +def create_image(ctx, config): + """ + Create an rbd image. + + For example:: + + tasks: + - ceph: + - rbd.create_image: + client.0: + image_name: testimage + image_size: 100 + image_format: 1 + client.1: + + Image size is expressed as a number of megabytes; default value + is 10240. + + Image format value must be either 1 or 2; default value is 1. + + """ + assert isinstance(config, dict) or isinstance(config, list), \ + "task create_image only supports a list or dictionary for configuration" + + if isinstance(config, dict): + images = config.items() + else: + images = [(role, None) for role in config] + + testdir = teuthology.get_testdir(ctx) + for role, properties in images: + if properties is None: + properties = {} + name = properties.get('image_name', default_image_name(role)) + size = properties.get('image_size', 10240) + fmt = properties.get('image_format', 1) + (remote,) = ctx.cluster.only(role).remotes.keys() + log.info('Creating image {name} with size {size}'.format(name=name, + size=size)) + args = [ + 'adjust-ulimits', + 'ceph-coverage'.format(tdir=testdir), + '{tdir}/archive/coverage'.format(tdir=testdir), + 'rbd', + '-p', 'rbd', + 'create', + '--size', str(size), + name, + ] + # omit format option if using the default (format 1) + # since old versions of don't support it + if int(fmt) != 1: + args += ['--image-format', str(fmt)] + remote.run(args=args) + try: + yield + finally: + log.info('Deleting rbd images...') + for role, properties in images: + if properties is None: + properties = {} + name = properties.get('image_name', default_image_name(role)) + (remote,) = ctx.cluster.only(role).remotes.keys() + remote.run( + args=[ + 'adjust-ulimits', + 'ceph-coverage', + '{tdir}/archive/coverage'.format(tdir=testdir), + 'rbd', + '-p', 'rbd', + 'rm', + name, + ], + ) + +@contextlib.contextmanager +def clone_image(ctx, config): + """ + Clones a parent imag + + For example:: + + tasks: + - ceph: + - rbd.clone_image: + client.0: + parent_name: testimage + image_name: cloneimage + """ + assert isinstance(config, dict) or isinstance(config, list), \ + "task clone_image only supports a list or dictionary for configuration" + + if isinstance(config, dict): + images = config.items() + else: + images = [(role, None) for role in config] + + testdir = teuthology.get_testdir(ctx) + for role, properties in images: + if properties is None: + properties = {} + + name = properties.get('image_name', default_image_name(role)) + parent_name = properties.get('parent_name') + assert parent_name is not None, \ + "parent_name is required" + parent_spec = '{name}@{snap}'.format(name=parent_name, snap=name) + + (remote,) = ctx.cluster.only(role).remotes.keys() + log.info('Clone image {parent} to {child}'.format(parent=parent_name, + child=name)) + for cmd in [('snap', 'create', parent_spec), + ('snap', 'protect', parent_spec), + ('clone', parent_spec, name)]: + args = [ + 'adjust-ulimits', + 'ceph-coverage'.format(tdir=testdir), + '{tdir}/archive/coverage'.format(tdir=testdir), + 'rbd', '-p', 'rbd' + ] + args.extend(cmd) + remote.run(args=args) + + try: + yield + finally: + log.info('Deleting rbd clones...') + for role, properties in images: + if properties is None: + properties = {} + name = properties.get('image_name', default_image_name(role)) + parent_name = properties.get('parent_name') + parent_spec = '{name}@{snap}'.format(name=parent_name, snap=name) + + (remote,) = ctx.cluster.only(role).remotes.keys() + + for cmd in [('rm', name), + ('snap', 'unprotect', parent_spec), + ('snap', 'rm', parent_spec)]: + args = [ + 'adjust-ulimits', + 'ceph-coverage'.format(tdir=testdir), + '{tdir}/archive/coverage'.format(tdir=testdir), + 'rbd', '-p', 'rbd' + ] + args.extend(cmd) + remote.run(args=args) + +@contextlib.contextmanager +def modprobe(ctx, config): + """ + Load the rbd kernel module.. + + For example:: + + tasks: + - ceph: + - rbd.create_image: [client.0] + - rbd.modprobe: [client.0] + """ + log.info('Loading rbd kernel module...') + for role in config: + (remote,) = ctx.cluster.only(role).remotes.keys() + remote.run( + args=[ + 'sudo', + 'modprobe', + 'rbd', + ], + ) + try: + yield + finally: + log.info('Unloading rbd kernel module...') + for role in config: + (remote,) = ctx.cluster.only(role).remotes.keys() + remote.run( + args=[ + 'sudo', + 'modprobe', + '-r', + 'rbd', + # force errors to be ignored; necessary if more + # than one device was created, which may mean + # the module isn't quite ready to go the first + # time through. + run.Raw('||'), + 'true', + ], + ) + +@contextlib.contextmanager +def dev_create(ctx, config): + """ + Map block devices to rbd images. + + For example:: + + tasks: + - ceph: + - rbd.create_image: [client.0] + - rbd.modprobe: [client.0] + - rbd.dev_create: + client.0: testimage.client.0 + """ + assert isinstance(config, dict) or isinstance(config, list), \ + "task dev_create only supports a list or dictionary for configuration" + + if isinstance(config, dict): + role_images = config.items() + else: + role_images = [(role, None) for role in config] + + log.info('Creating rbd block devices...') + + testdir = teuthology.get_testdir(ctx) + + for role, image in role_images: + if image is None: + image = default_image_name(role) + (remote,) = ctx.cluster.only(role).remotes.keys() + + remote.run( + args=[ + 'sudo', + 'adjust-ulimits', + 'ceph-coverage', + '{tdir}/archive/coverage'.format(tdir=testdir), + 'rbd', + '--user', role.rsplit('.')[-1], + '-p', 'rbd', + 'map', + image, + run.Raw('&&'), + # wait for the symlink to be created by udev + 'while', 'test', '!', '-e', '/dev/rbd/rbd/{image}'.format(image=image), run.Raw(';'), 'do', + 'sleep', '1', run.Raw(';'), + 'done', + ], + ) + try: + yield + finally: + log.info('Unmapping rbd devices...') + for role, image in role_images: + if image is None: + image = default_image_name(role) + (remote,) = ctx.cluster.only(role).remotes.keys() + remote.run( + args=[ + 'LD_LIBRARY_PATH={tdir}/binary/usr/local/lib'.format(tdir=testdir), + 'sudo', + 'adjust-ulimits', + 'ceph-coverage', + '{tdir}/archive/coverage'.format(tdir=testdir), + 'rbd', + '-p', 'rbd', + 'unmap', + '/dev/rbd/rbd/{imgname}'.format(imgname=image), + run.Raw('&&'), + # wait for the symlink to be deleted by udev + 'while', 'test', '-e', '/dev/rbd/rbd/{image}'.format(image=image), + run.Raw(';'), + 'do', + 'sleep', '1', run.Raw(';'), + 'done', + ], + ) + + +def rbd_devname_rtn(ctx, image): + return '/dev/rbd/rbd/{image}'.format(image=image) + +def canonical_path(ctx, role, path): + """ + Determine the canonical path for a given path on the host + representing the given role. A canonical path contains no + . or .. components, and includes no symbolic links. + """ + version_fp = StringIO() + ctx.cluster.only(role).run( + args=[ 'readlink', '-f', path ], + stdout=version_fp, + ) + canonical_path = version_fp.getvalue().rstrip('\n') + version_fp.close() + return canonical_path + +@contextlib.contextmanager +def run_xfstests(ctx, config): + """ + Run xfstests over specified devices. + + Warning: both the test and scratch devices specified will be + overwritten. Normally xfstests modifies (but does not destroy) + the test device, but for now the run script used here re-makes + both filesystems. + + Note: Only one instance of xfstests can run on a single host at + a time, although this is not enforced. + + This task in its current form needs some improvement. For + example, it assumes all roles provided in the config are + clients, and that the config provided is a list of key/value + pairs. For now please use the xfstests() interface, below. + + For example:: + + tasks: + - ceph: + - rbd.run_xfstests: + client.0: + count: 2 + test_dev: 'test_dev' + scratch_dev: 'scratch_dev' + fs_type: 'xfs' + tests: 'generic/100 xfs/003 xfs/005 xfs/006 generic/015' + exclude: + - generic/42 + randomize: true + """ + with parallel() as p: + for role, properties in config.items(): + p.spawn(run_xfstests_one_client, ctx, role, properties) + yield + +def run_xfstests_one_client(ctx, role, properties): + """ + Spawned routine to handle xfs tests for a single client + """ + testdir = teuthology.get_testdir(ctx) + try: + count = properties.get('count') + test_dev = properties.get('test_dev') + assert test_dev is not None, \ + "task run_xfstests requires test_dev to be defined" + test_dev = canonical_path(ctx, role, test_dev) + + scratch_dev = properties.get('scratch_dev') + assert scratch_dev is not None, \ + "task run_xfstests requires scratch_dev to be defined" + scratch_dev = canonical_path(ctx, role, scratch_dev) + + fs_type = properties.get('fs_type') + tests = properties.get('tests') + exclude_list = properties.get('exclude') + randomize = properties.get('randomize') + + (remote,) = ctx.cluster.only(role).remotes.keys() + + # Fetch the test script + test_root = teuthology.get_testdir(ctx) + test_script = 'run_xfstests.sh' + test_path = os.path.join(test_root, test_script) + + xfstests_url = properties.get('xfstests_url') + assert xfstests_url is not None, \ + "task run_xfstests requires xfstests_url to be defined" + + xfstests_krbd_url = xfstests_url + '/' + test_script + + log.info('Fetching {script} for {role} from {url}'.format( + script=test_script, + role=role, + url=xfstests_krbd_url)) + + args = [ 'wget', '-O', test_path, '--', xfstests_krbd_url ] + remote.run(args=args) + + log.info('Running xfstests on {role}:'.format(role=role)) + log.info(' iteration count: {count}:'.format(count=count)) + log.info(' test device: {dev}'.format(dev=test_dev)) + log.info(' scratch device: {dev}'.format(dev=scratch_dev)) + log.info(' using fs_type: {fs_type}'.format(fs_type=fs_type)) + log.info(' tests to run: {tests}'.format(tests=tests)) + log.info(' exclude list: {}'.format(' '.join(exclude_list))) + log.info(' randomize: {randomize}'.format(randomize=randomize)) + + if exclude_list: + with tempfile.NamedTemporaryFile(bufsize=0, prefix='exclude') as exclude_file: + for test in exclude_list: + exclude_file.write("{}\n".format(test)) + remote.put_file(exclude_file.name, exclude_file.name) + + # Note that the device paths are interpreted using + # readlink -f <path> in order to get their canonical + # pathname (so it matches what the kernel remembers). + args = [ + '/usr/bin/sudo', + 'TESTDIR={tdir}'.format(tdir=testdir), + 'adjust-ulimits', + 'ceph-coverage', + '{tdir}/archive/coverage'.format(tdir=testdir), + '/bin/bash', + test_path, + '-c', str(count), + '-f', fs_type, + '-t', test_dev, + '-s', scratch_dev, + ] + if exclude_list: + args.extend(['-x', exclude_file.name]) + if randomize: + args.append('-r') + if tests: + args.extend(['--', tests]) + remote.run(args=args, logger=log.getChild(role)) + finally: + log.info('Removing {script} on {role}'.format(script=test_script, + role=role)) + remote.run(args=['rm', '-f', test_path]) + +@contextlib.contextmanager +def xfstests(ctx, config): + """ + Run xfstests over rbd devices. This interface sets up all + required configuration automatically if not otherwise specified. + Note that only one instance of xfstests can run on a single host + at a time. By default, the set of tests specified is run once. + If a (non-zero) count value is supplied, the complete set of + tests will be run that number of times. + + For example:: + + tasks: + - ceph: + # Image sizes are in MB + - rbd.xfstests: + client.0: + count: 3 + test_image: 'test_image' + test_size: 250 + test_format: 2 + scratch_image: 'scratch_image' + scratch_size: 250 + scratch_format: 1 + fs_type: 'xfs' + tests: 'generic/100 xfs/003 xfs/005 xfs/006 generic/015' + exclude: + - generic/42 + randomize: true + xfstests_branch: master + xfstests_url: 'https://raw.github.com/ceph/branch/master/qa' + """ + if config is None: + config = { 'all': None } + assert isinstance(config, dict) or isinstance(config, list), \ + "task xfstests only supports a list or dictionary for configuration" + if isinstance(config, dict): + config = teuthology.replace_all_with_clients(ctx.cluster, config) + runs = config.items() + else: + runs = [(role, None) for role in config] + + running_xfstests = {} + for role, properties in runs: + assert role.startswith('client.'), \ + "task xfstests can only run on client nodes" + for host, roles_for_host in ctx.cluster.remotes.items(): + if role in roles_for_host: + assert host not in running_xfstests, \ + "task xfstests allows only one instance at a time per host" + running_xfstests[host] = True + + images_config = {} + scratch_config = {} + modprobe_config = {} + image_map_config = {} + scratch_map_config = {} + xfstests_config = {} + for role, properties in runs: + if properties is None: + properties = {} + + test_image = properties.get('test_image', 'test_image.{role}'.format(role=role)) + test_size = properties.get('test_size', 10000) # 10G + test_fmt = properties.get('test_format', 1) + scratch_image = properties.get('scratch_image', 'scratch_image.{role}'.format(role=role)) + scratch_size = properties.get('scratch_size', 10000) # 10G + scratch_fmt = properties.get('scratch_format', 1) + + images_config[role] = dict( + image_name=test_image, + image_size=test_size, + image_format=test_fmt, + ) + + scratch_config[role] = dict( + image_name=scratch_image, + image_size=scratch_size, + image_format=scratch_fmt, + ) + + xfstests_branch = properties.get('xfstests_branch', 'master') + xfstests_url = properties.get('xfstests_url', 'https://raw.github.com/ceph/ceph/{branch}/qa'.format(branch=xfstests_branch)) + + xfstests_config[role] = dict( + count=properties.get('count', 1), + test_dev='/dev/rbd/rbd/{image}'.format(image=test_image), + scratch_dev='/dev/rbd/rbd/{image}'.format(image=scratch_image), + fs_type=properties.get('fs_type', 'xfs'), + randomize=properties.get('randomize', False), + tests=properties.get('tests'), + exclude=properties.get('exclude', []), + xfstests_url=xfstests_url, + ) + + log.info('Setting up xfstests using RBD images:') + log.info(' test ({size} MB): {image}'.format(size=test_size, + image=test_image)) + log.info(' scratch ({size} MB): {image}'.format(size=scratch_size, + image=scratch_image)) + modprobe_config[role] = None + image_map_config[role] = test_image + scratch_map_config[role] = scratch_image + + with contextutil.nested( + lambda: create_image(ctx=ctx, config=images_config), + lambda: create_image(ctx=ctx, config=scratch_config), + lambda: modprobe(ctx=ctx, config=modprobe_config), + lambda: dev_create(ctx=ctx, config=image_map_config), + lambda: dev_create(ctx=ctx, config=scratch_map_config), + lambda: run_xfstests(ctx=ctx, config=xfstests_config), + ): + yield + + +@contextlib.contextmanager +def task(ctx, config): + """ + Create and mount an rbd image. + + For example, you can specify which clients to run on:: + + tasks: + - ceph: + - rbd: [client.0, client.1] + + There are a few image options:: + + tasks: + - ceph: + - rbd: + client.0: # uses defaults + client.1: + image_name: foo + image_size: 2048 + image_format: 2 + fs_type: xfs + + To use default options on all clients:: + + tasks: + - ceph: + - rbd: + all: + + To create 20GiB images and format them with xfs on all clients:: + + tasks: + - ceph: + - rbd: + all: + image_size: 20480 + fs_type: xfs + """ + if config is None: + config = { 'all': None } + norm_config = config + if isinstance(config, dict): + norm_config = teuthology.replace_all_with_clients(ctx.cluster, config) + if isinstance(norm_config, dict): + role_images = {} + for role, properties in norm_config.iteritems(): + if properties is None: + properties = {} + role_images[role] = properties.get('image_name') + else: + role_images = norm_config + + log.debug('rbd config is: %s', norm_config) + + with contextutil.nested( + lambda: create_image(ctx=ctx, config=norm_config), + lambda: modprobe(ctx=ctx, config=norm_config), + lambda: dev_create(ctx=ctx, config=role_images), + lambda: generic_mkfs(ctx=ctx, config=norm_config, + devname_rtn=rbd_devname_rtn), + lambda: generic_mount(ctx=ctx, config=role_images, + devname_rtn=rbd_devname_rtn), + ): + yield |