242 lines
8.1 KiB
Python
242 lines
8.1 KiB
Python
#!/usr/bin/python -u
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import sys
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import itertools
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import uuid
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from optparse import OptionParser
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import random
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import six
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from six.moves.urllib.parse import urlparse
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from swift.common.manager import Manager
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from swift.common import utils, ring
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from swift.common.storage_policy import POLICIES
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from swift.common.http import HTTP_NOT_FOUND
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from swiftclient import client, get_auth, ClientException
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from test.probe.common import ENABLED_POLICIES
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TIMEOUT = 60
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def meta_command(name, bases, attrs):
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"""
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Look for attrs with a truthy attribute __command__ and add them to an
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attribute __commands__ on the type that maps names to decorated methods.
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The decorated methods' doc strings also get mapped in __docs__.
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Also adds a method run(command_name, *args, **kwargs) that will
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execute the method mapped to the name in __commands__.
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"""
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commands = {}
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docs = {}
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for attr, value in attrs.items():
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if getattr(value, '__command__', False):
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commands[attr] = value
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# methods have always have a __doc__ attribute, sometimes empty
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docs[attr] = (getattr(value, '__doc__', None) or
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'perform the %s command' % attr).strip()
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attrs['__commands__'] = commands
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attrs['__docs__'] = docs
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def run(self, command, *args, **kwargs):
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return self.__commands__[command](self, *args, **kwargs)
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attrs.setdefault('run', run)
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return type(name, bases, attrs)
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def command(f):
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f.__command__ = True
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return f
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@six.add_metaclass(meta_command)
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class BrainSplitter(object):
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def __init__(self, url, token, container_name='test', object_name='test',
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server_type='container', policy=None):
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self.url = url
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self.token = token
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self.account = utils.split_path(urlparse(url).path, 2, 2)[1]
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self.container_name = container_name
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self.object_name = object_name
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server_list = ['%s-server' % server_type] if server_type else ['all']
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self.servers = Manager(server_list)
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policies = list(ENABLED_POLICIES)
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random.shuffle(policies)
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self.policies = itertools.cycle(policies)
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o = object_name if server_type == 'object' else None
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c = container_name if server_type in ('object', 'container') else None
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if server_type in ('container', 'account'):
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if policy:
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raise TypeError('Metadata server brains do not '
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'support specific storage policies')
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self.policy = None
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self.ring = ring.Ring(
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'/etc/swift/%s.ring.gz' % server_type)
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elif server_type == 'object':
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if not policy:
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raise TypeError('Object BrainSplitters need to '
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'specify the storage policy')
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self.policy = policy
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policy.load_ring('/etc/swift')
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self.ring = policy.object_ring
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else:
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raise ValueError('Unknown server_type: %r' % server_type)
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self.server_type = server_type
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part, nodes = self.ring.get_nodes(self.account, c, o)
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node_ids = [n['id'] for n in nodes]
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if all(n_id in node_ids for n_id in (0, 1)):
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self.primary_numbers = (1, 2)
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self.handoff_numbers = (3, 4)
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else:
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self.primary_numbers = (3, 4)
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self.handoff_numbers = (1, 2)
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@command
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def start_primary_half(self):
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"""
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start servers 1 & 2
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"""
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tuple(self.servers.start(number=n) for n in self.primary_numbers)
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@command
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def stop_primary_half(self):
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"""
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stop servers 1 & 2
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"""
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tuple(self.servers.stop(number=n) for n in self.primary_numbers)
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@command
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def start_handoff_half(self):
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"""
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start servers 3 & 4
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"""
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tuple(self.servers.start(number=n) for n in self.handoff_numbers)
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@command
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def stop_handoff_half(self):
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"""
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stop servers 3 & 4
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"""
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tuple(self.servers.stop(number=n) for n in self.handoff_numbers)
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@command
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def put_container(self, policy_index=None):
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"""
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put container with next storage policy
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"""
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if policy_index is not None:
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policy = POLICIES.get_by_index(int(policy_index))
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if not policy:
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raise ValueError('Unknown policy with index %s' % policy)
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elif not self.policy:
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policy = next(self.policies)
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else:
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policy = self.policy
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headers = {'X-Storage-Policy': policy.name}
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client.put_container(self.url, self.token, self.container_name,
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headers=headers)
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@command
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def delete_container(self):
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"""
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delete container
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"""
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client.delete_container(self.url, self.token, self.container_name)
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@command
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def put_object(self, headers=None, contents=None):
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"""
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issue put for test object
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"""
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client.put_object(self.url, self.token, self.container_name,
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self.object_name, headers=headers, contents=contents)
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@command
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def delete_object(self):
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"""
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issue delete for test object
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"""
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try:
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client.delete_object(self.url, self.token, self.container_name,
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self.object_name)
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except ClientException as err:
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if err.http_status != HTTP_NOT_FOUND:
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raise
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parser = OptionParser('%prog [options] '
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'<command>[:<args>[,<args>...]] [<command>...]')
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parser.usage += '\n\nCommands:\n\t' + \
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'\n\t'.join("%s - %s" % (name, doc) for name, doc in
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BrainSplitter.__docs__.items())
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parser.add_option('-c', '--container', default='container-%s' % uuid.uuid4(),
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help='set container name')
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parser.add_option('-o', '--object', default='object-%s' % uuid.uuid4(),
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help='set object name')
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parser.add_option('-s', '--server_type', default='container',
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help='set server type')
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parser.add_option('-P', '--policy_name', default=None,
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help='set policy')
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def main():
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options, commands = parser.parse_args()
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if not commands:
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parser.print_help()
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return 'ERROR: must specify at least one command'
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for cmd_args in commands:
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cmd = cmd_args.split(':', 1)[0]
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if cmd not in BrainSplitter.__commands__:
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parser.print_help()
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return 'ERROR: unknown command %s' % cmd
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url, token = get_auth('http://127.0.0.1:8080/auth/v1.0',
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'test:tester', 'testing')
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if options.server_type == 'object' and not options.policy_name:
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options.policy_name = POLICIES.default.name
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if options.policy_name:
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options.server_type = 'object'
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policy = POLICIES.get_by_name(options.policy_name)
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if not policy:
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return 'ERROR: unknown policy %r' % options.policy_name
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else:
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policy = None
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brain = BrainSplitter(url, token, options.container, options.object,
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options.server_type, policy=policy)
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for cmd_args in commands:
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parts = cmd_args.split(':', 1)
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command = parts[0]
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if len(parts) > 1:
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args = utils.list_from_csv(parts[1])
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else:
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args = ()
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try:
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brain.run(command, *args)
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except ClientException as e:
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print('**WARNING**: %s raised %s' % (command, e))
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print('STATUS'.join(['*' * 25] * 2))
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brain.servers.status()
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sys.exit()
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if __name__ == "__main__":
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sys.exit(main())
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