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opt
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python3.11
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lvestats
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lib
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info
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lveinfomain.py
# coding=utf-8 # # Copyright © Cloud Linux GmbH & Cloud Linux Software, Inc 2010-2019 All Rights Reserved # # Licensed under CLOUD LINUX LICENSE AGREEMENT # http://cloudlinux.com/docs/LICENSE.TXT import csv import logging import os import sys from sqlalchemy.exc import OperationalError, ProgrammingError import lvestats import lvestats.lib.commons.decorators from lvestats.lib import uidconverter from lvestats.lib.commons import dateutil from lvestats.lib.commons.func import get_ascii_table from lvestats.lib.commons.logsetup import setup_logging from lvestats.lib.config import ConfigError from lvestats.lib.config import read_config, is_normalized_user_cpu from lvestats.lib.dbengine import make_db_engine, MakeDbException from lvestats.lib.jsonhandler import prepare_data_json from lvestats.lib.lveinfolib import OutputFormatter, HistoryShowUnion, \ servers_info, get_supported_columns from lvestats.lib.lveinfolib_gov import HistoryShowDBGov from lvestats.lib.parsers.lveinfoargparse import lveinfo_parser, dbgov_parser, DEF_BLANK_VALUE log = setup_logging({}, caller_name='lveinfo', file_level=logging.ERROR, console_level=logging.ERROR) NAME = 'lveinfo' def _convert_to_dict(rows, fields): """ Convert rows and its headers name to list dictionaries :param list|tuple|generator rows: :param list|tuple fields: :return list: """ return [dict(zip(fields, row_)) for row_ in rows] def save_csv(rows, fields, stream): """ Save rows and its headers to stream :param list|tuple|generator rows: :param list|tuple fields: first csv file line :param file stream: stream to write data :return: """ csv_writer = csv.writer(stream) csv_writer.writerow(fields) csv_writer.writerows(rows) def is_cpu_output_normalizable(namespace): """ Normalization is done only if namespace.style == 'user', user id is specified, and either csv or json output selected :param namespace: command line options/settings :return: True if normalizagin of CPU should be done """ return namespace.style == "user" and (namespace.csv or namespace.json) and namespace.id def normalize_cpu(rows, fields): """ Normalize CPU data, making limit always be 100%. This is used to show end user usage relative to their limits :param list rows: rows with data :param list|tuple fields: columns name :return list: normalized rows """ if 'lCPU' in fields: lcpu_index = fields.index('lCPU') else: return rows if 'aCPU' in fields: acpuindex = fields.index('aCPU') else: acpuindex = -1 if 'mCPU' in fields: mcpuindex = fields.index('mCPU') else: mcpuindex = -1 new_rows = [] for _prow in rows: _row = list(_prow) new_rows.append(_row) lcpu = float(_row[lcpu_index]) _row[lcpu_index] = 100. if acpuindex != -1: _row[acpuindex] = float(_row[acpuindex]) / lcpu * 100 if mcpuindex != -1: _row[mcpuindex] = float(_row[mcpuindex]) / lcpu * 100 return new_rows def main_(config, dbengine=None, argv_=None): if dbengine is None: try: dbengine = make_db_engine(cfg=config) except MakeDbException as e: log.error(str(e)) return if argv_ is None: _args = sys.argv[1:] else: _args = list(argv_) if '--dbgov' in _args: namespace, output_formatted, rows = dbgov_main(config, _args, dbengine) else: parser = lveinfo_parser(name=NAME, ver=lvestats.__version__, config=config, dbengine=dbengine) namespace = parser.parse_args(_args) # parsing command line if namespace.servers_info: output_formatted = OutputFormatter(('Server', 'LVE version')) rows = servers_info(dbengine) else: output_formatted, rows = lvestats_main(dbengine, namespace, parser) output_formatted.set_rows(rows) # return values in bytes for json and csv # otherwise, return bytes if namespace.csv or namespace.json: output_formatted.add_order(fields=['aIO', 'mIO', 'lIO'], order=lambda x_: round(x_ / 1024., 3)) if namespace.csv: save_csv(output_formatted, output_formatted.get_fields(), stream=namespace.csv) elif namespace.json: return prepare_data_json(_convert_to_dict(output_formatted, output_formatted.fields)) else: # make ascii-table output human readable output_formatted.add_order(fields=['aVMem', 'mVMem', 'lVMem', 'aPMem', 'mPMem', 'lPMem', 'aIO', 'mIO', 'lIO'], order='bytes') output_formatted.add_order( fields=['aEP', 'mEP', 'lEP', 'EPf', 'VMemF', 'CPUf', 'aNproc', 'mNproc', 'lNproc', 'PMemF', 'NprocF', 'IOf', 'aIOPS', 'mIOPS', 'lIOPS', 'IOPSf'], order='powers_of_1000') output_formatted.add_order(['uCPU', 'uEP', 'uVMem', 'uPMem', 'uIO', 'uNproc', 'uIOPS'], 'percentage') return get_ascii_table(output_formatted, fields=output_formatted.fields) def lvestats_main(dbengine, namespace, parser): output_formatted = OutputFormatter( namespace.show_columns, # convert From To %m-%d %H:%M (for example "12-29 09:46") orders=[(['From', 'To'], 'datetime'), (['From', 'To'], 'strftime')]) output_formatted.add_order(fields=['aCPU', 'mCPU', 'lCPU', 'aIO', 'mIO', 'lIO'], order=lambda x_: int(round(x_))) utc_from = dateutil.local_to_gm(getattr(namespace, 'from')) utc_to = dateutil.local_to_gm(namespace.to) if os.environ.get('LVEINFODEBUG'): log_ = setup_logging({}, caller_name='lveinfo', console_level=logging.DEBUG) else: log_ = None history_show = HistoryShowUnion( dbengine=dbengine, period_from=utc_from, period_to=utc_to, uid=namespace.id, show_columns=output_formatted.get_fields(), server_id=namespace.server_id, time_unit=namespace.time_unit, limit=namespace.limit, by_usage=namespace.by_usage, by_usage_percentage=namespace.percentage / 100., by_fault=namespace.by_fault, threshold=namespace.threshold, order_by=namespace.order_by, log=log_ or log) history_show.set_normalised_output() if namespace.time_unit == -1: # using dynamic time-unit rows = history_show.proceed_dyn_time_unit() else: rows = history_show.proceed() if ((namespace.user or namespace.reseller_name) and namespace.display_username): output_formatted.add_order( ['ID'], lambda x: namespace.user or namespace.reseller_name) elif namespace.display_username: # try convert user id to user name output_formatted.add_order( ['ID'], lambda x: uidconverter.uid_to_username( x, parser.get_default('server_id'), namespace.server_id, dbengine) or x) # replace unsupported columns item to blank-value supported_columns_ = get_supported_columns(lve_version=parser.lve_version) all_columns = get_supported_columns() unsupported_columns = set(all_columns).difference(set(supported_columns_)) if unsupported_columns: output_formatted.add_order( fields=unsupported_columns, order=lambda _: DEF_BLANK_VALUE if namespace.blank_value is None else namespace.blank_value) if is_normalized_user_cpu() and is_cpu_output_normalizable(namespace): rows = normalize_cpu(rows, history_show.show_columns) return output_formatted, rows def dbgov_main(config, _args, dbengine): _args.remove('--dbgov') parser = dbgov_parser(config=config, dbengine=dbengine) namespace = parser.parse_args(_args) # parsing command line output_formatted = OutputFormatter( fields=namespace.format, orders=[ (['FROM', 'TO'], 'datetime'), (['FROM', 'TO'], lambda dt: OutputFormatter.strftime( dt, '%m-%d %H:%M')), (['TS'], 'datetime'), (['TS'], lambda dt: OutputFormatter.strftime( dt, '%m-%d %H:%M:%S')), (['CPU'], lambda x: 0 if x < 0.001 else x), (['READ', 'WRITE'], lambda x: 0 if x < 0.001 else x), ] ) utc_from = dateutil.local_to_gm(getattr(namespace, 'from')) utc_to = dateutil.local_to_gm(namespace.to) history_show = HistoryShowDBGov( dbengine=dbengine, period_from=utc_from, period_to=utc_to, uid=namespace.id, show_columns=output_formatted.get_fields(), server_id=namespace.server_id, order_by=namespace.order_by, limit=namespace.limit, cfg=config, time_unit=namespace.time_unit, by_usage=namespace.by_usage, by_usage_percentage=namespace.percentage / 100. ) if namespace.time_unit == -1: rows = history_show.history_dbgov_show_dynamic() else: rows = history_show.history_dbgov_show() return namespace, output_formatted, rows @lvestats.lib.commons.decorators.no_sigpipe def main(config, *args, **kwargs): try: str_ = main_(config, *args, **kwargs) except (OperationalError, ProgrammingError) as ex: log.error(str(ex)) else: if str_: print(str_) if __name__ == '__main__': try: main(read_config()) except ConfigError as ce: ce.log_and_exit()
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