/usr/lib/python2.7/dist-packages/slapos/grid/slapgrid.py is in slapos-node-unofficial 1.3.10-1.
This file is owned by root:root, with mode 0o644.
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# vim: set et sts=2:
##############################################################################
#
# Copyright (c) 2010, 2011, 2012 Vifib SARL and Contributors.
# All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly advised to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 3
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
##############################################################################
import os
import pkg_resources
import random
import socket
import StringIO
import subprocess
import sys
import tempfile
import time
import traceback
import warnings
import logging
if sys.version_info < (2, 6):
warnings.warn('Used python version (%s) is old and has problems with'
' IPv6 connections' % sys.version.split('\n')[0])
from lxml import etree
from slapos.slap.slap import NotFoundError
from slapos.slap.slap import ServerError
from slapos.util import mkdir_p, chownDirectory, string_to_boolean
from slapos.grid.exception import BuildoutFailedError
from slapos.grid.SlapObject import Software, Partition
from slapos.grid.svcbackend import (launchSupervisord,
createSupervisordConfiguration,
_getSupervisordConfigurationDirectory,
_getSupervisordSocketPath)
from slapos.grid.utils import (md5digest, dropPrivileges, SlapPopen)
from slapos.human import human2bytes
import slapos.slap
# XXX: should be moved to SLAP library
COMPUTER_PARTITION_DESTROYED_STATE = 'destroyed'
COMPUTER_PARTITION_STARTED_STATE = 'started'
COMPUTER_PARTITION_STOPPED_STATE = 'stopped'
# Global variables about return state of slapgrid
SLAPGRID_SUCCESS = 0
SLAPGRID_FAIL = 1
SLAPGRID_PROMISE_FAIL = 2
PROMISE_TIMEOUT = 3
COMPUTER_PARTITION_TIMESTAMP_FILENAME = '.timestamp'
COMPUTER_PARTITION_LATEST_BANG_TIMESTAMP_FILENAME = '.slapos_latest_bang_timestamp'
# XXX hardcoded watchdog_path
WATCHDOG_PATH = '/usr/sbin/slapos-watchdog'
class _formatXMLError(Exception):
pass
def check_missing_parameters(options):
required = set([
'computer_id',
# XXX: instance_root is better named "partition_root"
'instance_root',
'master_url',
'software_root',
])
if 'key_file' in options:
required.add('certificate_repository_path')
required.add('cert_file')
if 'cert_file' in options:
required.add('certificate_repository_path')
required.add('key_file')
missing = required.difference(options)
if missing:
raise RuntimeError('Missing mandatory parameters: %s' % ', '.join(sorted(missing)))
# parameter can NOT be empty string or None
for option in required:
if not options.get(option):
missing.add(option)
if missing:
raise RuntimeError('Mandatory parameters present but empty: %s' % ', '.join(sorted(missing)))
def check_missing_files(options):
req_files = [
options.get('key_file'),
options.get('cert_file'),
options.get('master_ca_file'),
options.get('shacache-cert-file'),
options.get('shacache-key-file'),
options.get('shadir-cert-file'),
options.get('shadir-key-file'),
options.get('signature_private_key_file')
]
req_dirs = [
options.get('certificate_repository_path')
]
for f in req_files:
if f and not os.path.exists(f):
raise RuntimeError('File %r does not exist.' % f)
for d in req_dirs:
if d and not os.path.isdir(d):
raise RuntimeError('Directory %r does not exist' % d)
def merged_options(args, configp):
options = dict(configp.items('slapos'))
if configp.has_section('networkcache'):
options.update(dict(configp.items('networkcache')))
for key, value in vars(args).iteritems():
if value is not None:
options[key] = value
if options.get('all'):
options['develop'] = True
# Parse cache / binary cache options
# Backward compatibility about "binary-cache-url-blacklist" deprecated option
if (options.get("binary-cache-url-blacklist") and not
options.get("download-from-binary-cache-url-blacklist")):
options["download-from-binary-cache-url-blacklist"] = \
options["binary-cache-url-blacklist"]
options["download-from-binary-cache-url-blacklist"] = [
url.strip() for url in options.get(
"download-from-binary-cache-url-blacklist", "").split('\n') if url]
options["upload-to-binary-cache-url-blacklist"] = [
url.strip() for url in options.get(
"upload-to-binary-cache-url-blacklist", "").split('\n') if url]
return options
def random_delay(options, logger):
"""
Sleep for a random time to avoid SlapOS Master being DDOSed by an army of
SlapOS Nodes configured with cron.
"""
if options['now']:
# XXX-Cedric: deprecate '--now'
return
maximal_delay = int(options.get('maximal_delay', '0'))
if maximal_delay:
duration = random.randint(1, maximal_delay)
logger.info('Sleeping for %s seconds. To disable this feature, '
'check --now parameter in slapgrid help.', duration)
time.sleep(duration)
def create_slapgrid_object(options, logger):
signature_certificate_list = None
if 'signature-certificate-list' in options:
cert_marker = '-----BEGIN CERTIFICATE-----'
signature_certificate_list = [
cert_marker + '\n' + q.strip()
for q in options['signature-certificate-list'].split(cert_marker)
if q.strip()
]
op = options
software_min_free_space = human2bytes(op.get('software_min_free_space', '200M'))
instance_min_free_space = human2bytes(op.get('instance_min_free_space', '100M'))
return Slapgrid(software_root=op['software_root'],
instance_root=op['instance_root'],
master_url=op['master_url'],
computer_id=op['computer_id'],
buildout=op.get('buildout'),
logger=logger,
maximum_periodicity = op.get('maximum_periodicity', 86400),
key_file=op.get('key_file'),
cert_file=op.get('cert_file'),
signature_private_key_file=op.get('signature_private_key_file'),
signature_certificate_list=signature_certificate_list,
download_binary_cache_url=op.get('download-binary-cache-url'),
upload_binary_cache_url=op.get('upload-binary-cache-url'),
download_from_binary_cache_url_blacklist=
op.get('download-from-binary-cache-url-blacklist', []),
upload_to_binary_cache_url_blacklist=
op.get('upload-to-binary-cache-url-blacklist', []),
upload_cache_url=op.get('upload-cache-url'),
download_binary_dir_url=op.get('download-binary-dir-url'),
upload_binary_dir_url=op.get('upload-binary-dir-url'),
upload_dir_url=op.get('upload-dir-url'),
master_ca_file=op.get('master_ca_file'),
certificate_repository_path=op.get('certificate_repository_path'),
promise_timeout=op.get('promise_timeout', PROMISE_TIMEOUT),
shacache_cert_file=op.get('shacache-cert-file'),
shacache_key_file=op.get('shacache-key-file'),
shadir_cert_file=op.get('shadir-cert-file'),
shadir_key_file=op.get('shadir-key-file'),
forbid_supervisord_automatic_launch=string_to_boolean(op.get('forbid_supervisord_automatic_launch', 'false')),
develop=op.get('develop', False),
# Try to fetch from deprecated argument
software_release_filter_list=op.get('only-sr', op.get('only_sr')),
# Try to fetch from deprecated argument
computer_partition_filter_list=op.get('only-cp', op.get('only_cp')),
software_min_free_space=software_min_free_space,
instance_min_free_space=instance_min_free_space,
instance_storage_home=op.get('instance_storage_home'),
ipv4_global_network=op.get('ipv4_global_network'))
def check_required_only_partitions(existing, required):
"""
Verify the existence of partitions specified by the --only parameter
"""
missing = set(required) - set(existing)
if missing:
plural = ['s', ''][len(missing) == 1]
raise ValueError('Unknown partition%s: %s' % (plural, ', '.join(sorted(missing))))
class Slapgrid(object):
""" Main class for SlapGrid. Fetches and processes informations from master
server and pushes usage information to master server.
"""
class PromiseError(Exception):
pass
def __init__(self,
software_root,
instance_root,
master_url,
computer_id,
buildout,
logger,
maximum_periodicity=86400,
key_file=None,
cert_file=None,
signature_private_key_file=None,
signature_certificate_list=None,
download_binary_cache_url=None,
upload_binary_cache_url=None,
download_from_binary_cache_url_blacklist=None,
upload_to_binary_cache_url_blacklist=None,
upload_cache_url=None,
download_binary_dir_url=None,
upload_binary_dir_url=None,
upload_dir_url=None,
master_ca_file=None,
certificate_repository_path=None,
promise_timeout=3,
shacache_cert_file=None,
shacache_key_file=None,
shadir_cert_file=None,
shadir_key_file=None,
forbid_supervisord_automatic_launch=False,
develop=False,
software_release_filter_list=None,
computer_partition_filter_list=None,
software_min_free_space=None,
instance_min_free_space=None,
instance_storage_home=None,
ipv4_global_network=None,
):
"""Makes easy initialisation of class parameters"""
# Parses arguments
self.software_root = os.path.abspath(software_root)
self.instance_root = os.path.abspath(instance_root)
self.master_url = master_url
self.computer_id = computer_id
self.supervisord_socket = _getSupervisordSocketPath(instance_root)
self.key_file = key_file
self.cert_file = cert_file
self.master_ca_file = master_ca_file
self.certificate_repository_path = certificate_repository_path
self.signature_private_key_file = signature_private_key_file
self.signature_certificate_list = signature_certificate_list
self.download_binary_cache_url = download_binary_cache_url
self.upload_binary_cache_url = upload_binary_cache_url
self.download_from_binary_cache_url_blacklist = \
download_from_binary_cache_url_blacklist
self.upload_to_binary_cache_url_blacklist = \
upload_to_binary_cache_url_blacklist
self.upload_cache_url = upload_cache_url
self.download_binary_dir_url = download_binary_dir_url
self.upload_binary_dir_url = upload_binary_dir_url
self.upload_dir_url = upload_dir_url
self.shacache_cert_file = shacache_cert_file
self.shacache_key_file = shacache_key_file
self.shadir_cert_file = shadir_cert_file
self.shadir_key_file = shadir_key_file
self.forbid_supervisord_automatic_launch = forbid_supervisord_automatic_launch
self.logger = logger
# Creates objects from slap module
self.slap = slapos.slap.slap()
self.slap.initializeConnection(self.master_url, key_file=self.key_file,
cert_file=self.cert_file, master_ca_file=self.master_ca_file)
self.computer = self.slap.registerComputer(self.computer_id)
# Defines all needed paths
self.buildout = buildout
self.promise_timeout = promise_timeout
self.develop = develop
if software_release_filter_list is not None:
self.software_release_filter_list = \
software_release_filter_list.split(",")
else:
self.software_release_filter_list = []
self.computer_partition_filter_list = []
if computer_partition_filter_list is not None:
self.computer_partition_filter_list = \
computer_partition_filter_list.split(",")
self.maximum_periodicity = maximum_periodicity
self.software_min_free_space = software_min_free_space
self.instance_min_free_space = instance_min_free_space
if instance_storage_home:
self.instance_storage_home = os.path.abspath(instance_storage_home)
else:
self.instance_storage_home = ""
if ipv4_global_network:
self.ipv4_global_network = ipv4_global_network
else:
self.ipv4_global_network= ""
def _getWatchdogLine(self):
invocation_list = [WATCHDOG_PATH]
invocation_list.append("--master-url '%s' " % self.master_url)
if self.certificate_repository_path:
invocation_list.append("--certificate-repository-path '%s'" %
self.certificate_repository_path)
invocation_list.append("--computer-id '%s'" % self.computer_id)
invocation_list.append("--instance-root '%s'" % self.instance_root)
return ' '.join(invocation_list)
def checkEnvironmentAndCreateStructure(self):
"""Checks for software_root and instance_root existence, then creates
needed files and directories.
"""
# Checks for software_root and instance_root existence
if not os.path.isdir(self.software_root):
raise OSError('%s does not exist.' % self.software_root)
createSupervisordConfiguration(self.instance_root, self._getWatchdogLine())
def _launchSupervisord(self):
if not self.forbid_supervisord_automatic_launch:
launchSupervisord(instance_root=self.instance_root, logger=self.logger)
def getComputerPartitionList(self):
try:
return self.computer.getComputerPartitionList()
except socket.error as exc:
self.logger.fatal(exc)
raise
def processSoftwareReleaseList(self):
"""Will process each Software Release.
"""
self.checkEnvironmentAndCreateStructure()
self.logger.info('Processing software releases...')
# Boolean to know if every instance has correctly been deployed
clean_run = True
for software_release in self.computer.getSoftwareReleaseList():
state = software_release.getState()
try:
software_release_uri = software_release.getURI()
url_hash = md5digest(software_release_uri)
software_path = os.path.join(self.software_root, url_hash)
software = Software(url=software_release_uri,
software_root=self.software_root,
buildout=self.buildout,
logger=self.logger,
signature_private_key_file=self.signature_private_key_file,
signature_certificate_list=self.signature_certificate_list,
download_binary_cache_url=self.download_binary_cache_url,
upload_binary_cache_url=self.upload_binary_cache_url,
download_from_binary_cache_url_blacklist=
self.download_from_binary_cache_url_blacklist,
upload_to_binary_cache_url_blacklist=
self.upload_to_binary_cache_url_blacklist,
upload_cache_url=self.upload_cache_url,
download_binary_dir_url=self.download_binary_dir_url,
upload_binary_dir_url=self.upload_binary_dir_url,
upload_dir_url=self.upload_dir_url,
shacache_cert_file=self.shacache_cert_file,
shacache_key_file=self.shacache_key_file,
shadir_cert_file=self.shadir_cert_file,
shadir_key_file=self.shadir_key_file,
software_min_free_space=self.software_min_free_space)
if state == 'available':
completed_tag = os.path.join(software_path, '.completed')
if (self.develop or (not os.path.exists(completed_tag) and
len(self.software_release_filter_list) == 0) or
url_hash in self.software_release_filter_list or
url_hash in (md5digest(uri) for uri in self.software_release_filter_list)):
try:
software_release.building()
except NotFoundError:
pass
software.install()
with open(completed_tag, 'w') as fout:
fout.write(time.asctime())
elif state == 'destroyed':
if os.path.exists(software_path):
self.logger.info('Destroying %r...' % software_release_uri)
software.destroy()
self.logger.info('Destroyed %r.' % software_release_uri)
# Send log before exiting
except (SystemExit, KeyboardInterrupt):
software_release.error(traceback.format_exc(), logger=self.logger)
raise
# Buildout failed: send log but don't print it to output (already done)
except BuildoutFailedError as exc:
clean_run = False
try:
software_release.error(exc, logger=self.logger)
except (SystemExit, KeyboardInterrupt):
raise
except Exception:
self.logger.exception('Problem while reporting error, continuing:')
# For everything else: log it, send it, continue.
except Exception:
self.logger.exception('')
software_release.error(traceback.format_exc(), logger=self.logger)
clean_run = False
else:
if state == 'available':
try:
software_release.available()
except (NotFoundError, ServerError):
pass
elif state == 'destroyed':
try:
software_release.destroyed()
except (NotFoundError, ServerError):
self.logger.exception('')
self.logger.info('Finished software releases.')
# Return success value
if not clean_run:
return SLAPGRID_FAIL
return SLAPGRID_SUCCESS
def _checkPromises(self, computer_partition):
self.logger.info("Checking promises...")
instance_path = os.path.join(self.instance_root, computer_partition.getId())
uid, gid = None, None
stat_info = os.stat(instance_path)
#stat sys call to get statistics informations
uid = stat_info.st_uid
gid = stat_info.st_gid
promise_present = False
# Get the list of promises
promise_dir = os.path.join(instance_path, 'etc', 'promise')
if os.path.exists(promise_dir) and os.path.isdir(promise_dir):
# Check whether every promise is kept
for promise in os.listdir(promise_dir):
promise_present = True
command = [os.path.join(promise_dir, promise)]
promise = os.path.basename(command[0])
self.logger.info("Checking promise '%s'.", promise)
process_handler = subprocess.Popen(command,
preexec_fn=lambda: dropPrivileges(uid, gid, logger=self.logger),
cwd=instance_path,
env=None if sys.platform == 'cygwin' else {},
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
stdin=subprocess.PIPE)
process_handler.stdin.flush()
process_handler.stdin.close()
process_handler.stdin = None
# Check if the promise finished every tenth of second,
# but timeout after promise_timeout.
sleep_time = 0.1
increment_limit = int(self.promise_timeout / sleep_time)
for current_increment in range(0, increment_limit):
if process_handler.poll() is None:
time.sleep(sleep_time)
continue
if process_handler.poll() == 0:
# Success!
break
else:
stderr = process_handler.communicate()[1]
if stderr is None:
stderr = "No error output from '%s'." % promise
else:
stderr = "Promise '%s':" % promise + stderr
raise Slapgrid.PromiseError(stderr)
else:
process_handler.terminate()
raise Slapgrid.PromiseError("The promise '%s' timed out" % promise)
if not promise_present:
self.logger.info("No promise.")
def processComputerPartition(self, computer_partition):
"""
Process a Computer Partition, depending on its state
"""
computer_partition_id = computer_partition.getId()
# Sanity checks before processing
# Those values should not be None or empty string or any falsy value
if not computer_partition_id:
raise ValueError('Computer Partition id is empty.')
# Check if we defined explicit list of partitions to process.
# If so, if current partition not in this list, skip.
if len(self.computer_partition_filter_list) > 0 and \
(computer_partition_id not in self.computer_partition_filter_list):
return
self.logger.debug('Check if %s requires processing...' % computer_partition_id)
instance_path = os.path.join(self.instance_root, computer_partition_id)
# Try to get partition timestamp (last modification date)
timestamp_path = os.path.join(
instance_path,
COMPUTER_PARTITION_TIMESTAMP_FILENAME
)
parameter_dict = computer_partition.getInstanceParameterDict()
if 'timestamp' in parameter_dict:
timestamp = parameter_dict['timestamp']
else:
timestamp = None
try:
software_url = computer_partition.getSoftwareRelease().getURI()
except NotFoundError:
# Problem with instance: SR URI not set.
# Try to process it anyway, it may need to be deleted.
software_url = None
try:
software_path = os.path.join(self.software_root, md5digest(software_url))
except TypeError:
# Problem with instance: SR URI not set.
# Try to process it anyway, it may need to be deleted.
software_path = None
periodicity = self.maximum_periodicity
if software_path:
periodicity_path = os.path.join(software_path, 'periodicity')
if os.path.exists(periodicity_path):
try:
periodicity = int(open(periodicity_path).read())
except ValueError:
os.remove(periodicity_path)
self.logger.exception('')
# Check if timestamp from server is more recent than local one.
# If not: it's not worth processing this partition (nothing has
# changed).
if (computer_partition_id not in self.computer_partition_filter_list and
not self.develop and os.path.exists(timestamp_path)):
old_timestamp = open(timestamp_path).read()
last_runtime = int(os.path.getmtime(timestamp_path))
if timestamp:
try:
if periodicity == 0:
os.remove(timestamp_path)
elif int(timestamp) <= int(old_timestamp):
# Check periodicity, i.e if periodicity is one day, partition
# should be processed at least every day.
if int(time.time()) <= (last_runtime + periodicity) or periodicity < 0:
self.logger.debug('Partition already up-to-date, skipping.')
return
else:
# Periodicity forced processing this partition. Removing
# the timestamp file in case it fails.
os.remove(timestamp_path)
except ValueError:
os.remove(timestamp_path)
self.logger.exception('')
# Include Partition Logging
log_folder_path = "%s/.slapgrid/log" % instance_path
mkdir_p(log_folder_path)
partition_file_handler = logging.FileHandler(
filename="%s/instance.log" % (log_folder_path)
)
stat_info = os.stat(instance_path)
chownDirectory("%s/.slapgrid" % instance_path,
uid=stat_info.st_uid,
gid=stat_info.st_gid)
formatter = logging.Formatter(
'[%(asctime)s] %(levelname)-8s %(name)s %(message)s')
partition_file_handler.setFormatter(formatter)
self.logger.addHandler(partition_file_handler)
try:
self.logger.info('Processing Computer Partition %s.' % computer_partition_id)
self.logger.info(' Software URL: %s' % software_url)
self.logger.info(' Software path: %s' % software_path)
self.logger.info(' Instance path: %s' % instance_path)
filter_dict = getattr(computer_partition, '_filter_dict', None)
if filter_dict:
retention_delay = filter_dict.get('retention_delay', '0')
else:
retention_delay = '0'
local_partition = Partition(
software_path=software_path,
instance_path=instance_path,
supervisord_partition_configuration_path=os.path.join(
_getSupervisordConfigurationDirectory(self.instance_root), '%s.conf' %
computer_partition_id),
supervisord_socket=self.supervisord_socket,
computer_partition=computer_partition,
computer_id=self.computer_id,
partition_id=computer_partition_id,
server_url=self.master_url,
software_release_url=software_url,
certificate_repository_path=self.certificate_repository_path,
buildout=self.buildout,
logger=self.logger,
retention_delay=retention_delay,
instance_min_free_space=self.instance_min_free_space,
instance_storage_home=self.instance_storage_home,
ipv4_global_network=self.ipv4_global_network,
)
computer_partition_state = computer_partition.getState()
# XXX this line breaks 37 tests
# self.logger.info(' Instance type: %s' % computer_partition.getType())
self.logger.info(' Instance status: %s' % computer_partition_state)
if computer_partition_state == COMPUTER_PARTITION_STARTED_STATE:
local_partition.install()
computer_partition.available()
local_partition.start()
self._checkPromises(computer_partition)
computer_partition.started()
elif computer_partition_state == COMPUTER_PARTITION_STOPPED_STATE:
try:
# We want to process the partition, even if stopped, because it should
# propagate the state to children if any.
local_partition.install()
computer_partition.available()
finally:
# Instance has to be stopped even if buildout/reporting is wrong.
local_partition.stop()
computer_partition.stopped()
elif computer_partition_state == COMPUTER_PARTITION_DESTROYED_STATE:
local_partition.stop()
try:
computer_partition.stopped()
except (SystemExit, KeyboardInterrupt):
computer_partition.error(traceback.format_exc(), logger=self.logger)
raise
except Exception:
pass
else:
error_string = "Computer Partition %r has unsupported state: %s" % \
(computer_partition_id, computer_partition_state)
computer_partition.error(error_string, logger=self.logger)
raise NotImplementedError(error_string)
finally:
self.logger.removeHandler(partition_file_handler)
# If partition has been successfully processed, write timestamp
if timestamp:
open(timestamp_path, 'w').write(timestamp)
def FilterComputerPartitionList(self, computer_partition_list):
"""
Try to filter valid partitions to be processed from free partitions.
"""
filtered_computer_partition_list = []
for computer_partition in computer_partition_list:
try:
computer_partition_path = os.path.join(self.instance_root,
computer_partition.getId())
if not os.path.exists(computer_partition_path):
raise NotFoundError('Partition directory %s does not exist.' %
computer_partition_path)
# Check state of partition. If it is in "destroyed" state, check if it
# partition is actually installed in the Computer or if it is "free"
# partition, and check if it has some Software information.
# XXX-Cedric: Temporary AND ugly solution to check if an instance
# is in the partition. Dangerous because not 100% sure it is empty
computer_partition_state = computer_partition.getState()
try:
software_url = computer_partition.getSoftwareRelease().getURI()
except (NotFoundError, TypeError, NameError):
software_url = None
if computer_partition_state == COMPUTER_PARTITION_DESTROYED_STATE and \
not software_url:
if os.listdir(computer_partition_path) != []:
self.logger.warning("Free partition %s contains file(s) in %s." % (
computer_partition.getId(), computer_partition_path))
continue
# Everything seems fine
filtered_computer_partition_list.append(computer_partition)
# XXX-Cedric: factor all this error handling
# Send log before exiting
except (SystemExit, KeyboardInterrupt):
computer_partition.error(traceback.format_exc(), logger=self.logger)
raise
except Exception as exc:
# if Buildout failed: send log but don't print it to output (already done)
if not isinstance(exc, BuildoutFailedError):
# For everything else: log it, send it, continue.
self.logger.exception('')
try:
computer_partition.error(exc, logger=self.logger)
except (SystemExit, KeyboardInterrupt):
raise
except Exception:
self.logger.exception('Problem while reporting error, continuing:')
return filtered_computer_partition_list
def processComputerPartitionList(self):
"""
Will start supervisord and process each Computer Partition.
"""
self.logger.info('Processing computer partitions...')
# Prepares environment
self.checkEnvironmentAndCreateStructure()
self._launchSupervisord()
# Boolean to know if every instance has correctly been deployed
clean_run = True
# Boolean to know if every promises correctly passed
clean_run_promise = True
check_required_only_partitions([cp.getId() for cp in self.getComputerPartitionList()],
self.computer_partition_filter_list)
# Filter all dummy / empty partitions
computer_partition_list = self.FilterComputerPartitionList(
self.getComputerPartitionList())
for computer_partition in computer_partition_list:
# Nothing should raise outside of the current loop iteration, so that
# even if something is terribly wrong while processing an instance, it
# won't prevent processing other ones.
try:
# Process the partition itself
self.processComputerPartition(computer_partition)
# Send log before exiting
except (SystemExit, KeyboardInterrupt):
computer_partition.error(traceback.format_exc(), logger=self.logger)
raise
except Slapgrid.PromiseError as exc:
clean_run_promise = False
try:
self.logger.error(exc)
computer_partition.error(exc, logger=self.logger)
except (SystemExit, KeyboardInterrupt):
raise
except Exception:
self.logger.exception('Problem while reporting error, continuing:')
except Exception as exc:
clean_run = False
# if Buildout failed: send log but don't print it to output (already done)
if not isinstance(exc, BuildoutFailedError):
# For everything else: log it, send it, continue.
self.logger.exception('')
try:
computer_partition.error(exc, logger=self.logger)
except (SystemExit, KeyboardInterrupt):
raise
except Exception:
self.logger.exception('Problem while reporting error, continuing:')
self.logger.info('Finished computer partitions.')
# Return success value
if not clean_run:
return SLAPGRID_FAIL
if not clean_run_promise:
return SLAPGRID_PROMISE_FAIL
return SLAPGRID_SUCCESS
def validateXML(self, to_be_validated, xsd_model):
"""Validates a given xml file"""
#We retrieve the xsd model
xsd_model = StringIO.StringIO(xsd_model)
xmlschema_doc = etree.parse(xsd_model)
xmlschema = etree.XMLSchema(xmlschema_doc)
try:
document = etree.fromstring(to_be_validated)
except (etree.XMLSyntaxError, etree.DocumentInvalid) as exc:
self.logger.info('Failed to parse this XML report : %s\n%s' %
(to_be_validated, _formatXMLError(exc)))
self.logger.error(_formatXMLError(exc))
return False
if xmlschema.validate(document):
return True
return False
def asXML(self, computer_partition_usage_list):
"""Generates a XML report from computer partition usage list
"""
xml = ['<?xml version="1.0"?>',
'<journal>',
'<transaction type="Sale Packing List">',
'<title>Resource consumptions</title>',
'<start_date></start_date>',
'<stop_date>%s</stop_date>' % time.strftime("%Y-%m-%d at %H:%M:%S"),
'<reference>%s</reference>' % self.computer_id,
'<currency></currency>',
'<payment_mode></payment_mode>',
'<category></category>',
'<arrow type="Administration">',
'<source></source>',
'<destination></destination>',
'</arrow>']
for computer_partition_usage in computer_partition_usage_list:
try:
root = etree.fromstring(computer_partition_usage.usage)
except UnicodeError as exc:
self.logger.info("Failed to read %s." % computer_partition_usage.usage)
self.logger.error(UnicodeError)
raise UnicodeError("Failed to read %s: %s" % (computer_partition_usage.usage, exc))
except (etree.XMLSyntaxError, etree.DocumentInvalid) as exc:
self.logger.info("Failed to parse %s." % (computer_partition_usage.usage))
self.logger.error(exc)
raise _formatXMLError(exc)
except Exception as exc:
raise Exception("Failed to generate XML report: %s" % exc)
for movement in root.findall('movement'):
xml.append('<movement>')
for child in movement.getchildren():
if child.tag == "reference":
xml.append('<%s>%s</%s>' % (child.tag, computer_partition_usage.getId(), child.tag))
else:
xml.append('<%s>%s</%s>' % (child.tag, child.text, child.tag))
xml.append('</movement>')
xml.append('</transaction></journal>')
return ''.join(xml)
def agregateAndSendUsage(self):
"""Will agregate usage from each Computer Partition.
"""
# Prepares environment
self.checkEnvironmentAndCreateStructure()
self._launchSupervisord()
slap_computer_usage = self.slap.registerComputer(self.computer_id)
computer_partition_usage_list = []
self.logger.info('Aggregating and sending usage reports...')
#We retrieve XSD models
try:
computer_consumption_model = \
pkg_resources.resource_string(
'slapos.slap',
'doc/computer_consumption.xsd')
except IOError:
computer_consumption_model = \
pkg_resources.resource_string(
__name__,
'../../../../slapos/slap/doc/computer_consumption.xsd')
try:
partition_consumption_model = \
pkg_resources.resource_string(
'slapos.slap',
'doc/partition_consumption.xsd')
except IOError:
partition_consumption_model = \
pkg_resources.resource_string(
__name__,
'../../../../slapos/slap/doc/partition_consumption.xsd')
clean_run = True
# Loop over the different computer partitions
computer_partition_list = self.FilterComputerPartitionList(
slap_computer_usage.getComputerPartitionList())
for computer_partition in computer_partition_list:
try:
computer_partition_id = computer_partition.getId()
# We want to execute all the script in the report folder
instance_path = os.path.join(self.instance_root,
computer_partition.getId())
report_path = os.path.join(instance_path, 'etc', 'report')
if os.path.isdir(report_path):
script_list_to_run = os.listdir(report_path)
else:
script_list_to_run = []
# We now generate the pseudorandom name for the xml file
# and we add it in the invocation_list
f = tempfile.NamedTemporaryFile()
name_xml = '%s.%s' % ('slapreport', os.path.basename(f.name))
path_to_slapreport = os.path.join(instance_path, 'var', 'xml_report',
name_xml)
failed_script_list = []
for script in script_list_to_run:
invocation_list = []
invocation_list.append(os.path.join(instance_path, 'etc', 'report',
script))
# We add the xml_file name to the invocation_list
#f = tempfile.NamedTemporaryFile()
#name_xml = '%s.%s' % ('slapreport', os.path.basename(f.name))
#path_to_slapreport = os.path.join(instance_path, 'var', name_xml)
invocation_list.append(path_to_slapreport)
# Dropping privileges
uid, gid = None, None
stat_info = os.stat(instance_path)
#stat sys call to get statistics informations
uid = stat_info.st_uid
gid = stat_info.st_gid
process_handler = SlapPopen(invocation_list,
preexec_fn=lambda: dropPrivileges(uid, gid, logger=self.logger),
cwd=os.path.join(instance_path, 'etc', 'report'),
env=None,
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
logger=self.logger)
if process_handler.returncode is None:
process_handler.kill()
if process_handler.returncode != 0:
clean_run = False
failed_script_list.append("Script %r failed." % script)
self.logger.warning('Failed to run %r' % invocation_list)
if len(failed_script_list):
computer_partition.error('\n'.join(failed_script_list), logger=self.logger)
# Whatever happens, don't stop processing other instances
except Exception:
self.logger.exception('Cannot run usage script(s) for %r:' %
computer_partition.getId())
# Now we loop through the different computer partitions to report
report_usage_issue_cp_list = []
for computer_partition in computer_partition_list:
try:
filename_delete_list = []
computer_partition_id = computer_partition.getId()
instance_path = os.path.join(self.instance_root, computer_partition_id)
dir_report_list = [os.path.join(instance_path, 'var', 'xml_report'),
os.path.join(self.instance_root, 'var', 'xml_report',
computer_partition_id)]
for dir_reports in dir_report_list:
# The directory xml_report contain a number of files equal
# to the number of software instance running inside the same partition
if os.path.isdir(dir_reports):
filename_list = os.listdir(dir_reports)
else:
filename_list = []
# self.logger.debug('name List %s' % filename_list)
for filename in filename_list:
file_path = os.path.join(dir_reports, filename)
if os.path.exists(file_path):
usage = open(file_path, 'r').read()
# We check the validity of xml content of each reports
if not self.validateXML(usage, partition_consumption_model):
self.logger.info('WARNING: The XML file %s generated by slapreport is '
'not valid - This report is left as is at %s where you can '
'inspect what went wrong ' % (filename, dir_reports))
# Warn the SlapOS Master that a partition generates corrupted xml
# report
else:
computer_partition_usage = self.slap.registerComputerPartition(
self.computer_id, computer_partition_id)
computer_partition_usage.setUsage(usage)
computer_partition_usage_list.append(computer_partition_usage)
filename_delete_list.append(filename)
else:
self.logger.debug('Usage report %r not found, ignored' % file_path)
# After sending the aggregated file we remove all the valid xml reports
for filename in filename_delete_list:
os.remove(os.path.join(dir_reports, filename))
# Whatever happens, don't stop processing other instances
except Exception:
self.logger.exception('Cannot run usage script(s) for %r:' %
computer_partition.getId())
for computer_partition_usage in computer_partition_usage_list:
self.logger.info('computer_partition_usage_list: %s - %s' %
(computer_partition_usage.usage, computer_partition_usage.getId()))
filename_delete_list = []
computer_report_dir = os.path.join(self.instance_root,
'var', 'xml_report', self.computer_id)
# The directory xml_report contain a number of files equal
# to the number of software instance running inside the same partition
if os.path.isdir(computer_report_dir):
filename_list = os.listdir(computer_report_dir)
else:
filename_list = []
for filename in filename_list:
file_path = os.path.join(computer_report_dir, filename)
if os.path.exists(file_path):
usage = open(file_path, 'r').read()
if self.validateXML(usage, computer_consumption_model):
self.logger.info('XML file generated by asXML is valid')
slap_computer_usage.reportUsage(usage)
filename_delete_list.append(filename)
else:
self.logger.info('XML file is invalid %s' % filename)
# After sending the aggregated file we remove all the valid xml reports
for filename in filename_delete_list:
os.remove(os.path.join(computer_report_dir, filename))
# If there is, at least, one report
if computer_partition_usage_list != []:
try:
# We generate the final XML report with asXML method
computer_consumption = self.asXML(computer_partition_usage_list)
self.logger.info('Final xml report: %s' % computer_consumption)
# We test the XML report before sending it
if self.validateXML(computer_consumption, computer_consumption_model):
self.logger.info('XML file generated by asXML is valid')
slap_computer_usage.reportUsage(computer_consumption)
else:
self.logger.info('XML file generated by asXML is not valid !')
raise ValueError('XML file generated by asXML is not valid !')
except Exception:
issue = "Cannot report usage for %r: %s" % (
computer_partition.getId(),
traceback.format_exc())
self.logger.info(issue)
computer_partition.error(issue, logger=self.logger)
report_usage_issue_cp_list.append(computer_partition_id)
for computer_partition in computer_partition_list:
if computer_partition.getState() == COMPUTER_PARTITION_DESTROYED_STATE:
destroyed = False
try:
computer_partition_id = computer_partition.getId()
try:
software_url = computer_partition.getSoftwareRelease().getURI()
software_path = os.path.join(self.software_root, md5digest(software_url))
except (NotFoundError, TypeError):
software_url = None
software_path = None
local_partition = Partition(
software_path=software_path,
instance_path=os.path.join(self.instance_root,
computer_partition.getId()),
supervisord_partition_configuration_path=os.path.join(
_getSupervisordConfigurationDirectory(self.instance_root), '%s.conf' %
computer_partition_id),
supervisord_socket=self.supervisord_socket,
computer_partition=computer_partition,
computer_id=self.computer_id,
partition_id=computer_partition_id,
server_url=self.master_url,
software_release_url=software_url,
certificate_repository_path=self.certificate_repository_path,
buildout=self.buildout,
logger=self.logger,
instance_storage_home=self.instance_storage_home,
ipv4_global_network=self.ipv4_global_network,
)
local_partition.stop()
try:
computer_partition.stopped()
except (SystemExit, KeyboardInterrupt):
computer_partition.error(traceback.format_exc(), logger=self.logger)
raise
except Exception:
pass
if computer_partition.getId() in report_usage_issue_cp_list:
self.logger.info('Ignoring destruction of %r, as no report usage was sent' %
computer_partition.getId())
continue
destroyed = local_partition.destroy()
except (SystemExit, KeyboardInterrupt):
computer_partition.error(traceback.format_exc(), logger=self.logger)
raise
except Exception:
clean_run = False
self.logger.exception('')
exc = traceback.format_exc()
computer_partition.error(exc, logger=self.logger)
try:
if destroyed:
computer_partition.destroyed()
except NotFoundError:
self.logger.debug('Ignored slap error while trying to inform about '
'destroying not fully configured Computer Partition %r' %
computer_partition.getId())
except ServerError as server_error:
self.logger.debug('Ignored server error while trying to inform about '
'destroying Computer Partition %r. Error is:\n%r' %
(computer_partition.getId(), server_error.args[0]))
self.logger.info('Finished usage reports.')
# Return success value
if not clean_run:
return SLAPGRID_FAIL
return SLAPGRID_SUCCESS
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