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collectors.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 from clcommon import clpwd from clcommon.clproc import LIMIT_LVP_ID, ProcLve from lvestat import LVEStat from lvestats.core.plugin import LveStatsPlugin from lvestats.lib.commons.func import serialize_lve_id MEGAHERZ = 1000000 GIGAHERZ = 1000000000 __author__ = 'iseletsk' class LVECollector(LveStatsPlugin): """ Collects data about LVE and LVP usage; Uses /proc/lve/list and /proc/lve/resellers/lvpXXX/list """ def __init__(self): self.min_uid = clpwd.ClPwd().get_sys_min_uid(500) self._proc_lve = ProcLve() def __parse_stats(self, lvp_id=0): """ Get information about LVE usage for given lvp_id (container id); :type lvp_id: int :rtype: dict[int, LVEStat] """ stats = {} for line in self._proc_lve.lines(lvp_id, without_limits=False): stat = LVEStat(line, self._proc_lve.version()) if stat.id == 0 or stat.id >= self.min_uid: serialized_id = serialize_lve_id(stat.id, stat.reseller_id) stats[serialized_id] = stat return stats def execute(self, lve_data): lve_data['LVE_VERSION'] = self._proc_lve.version() stats = {} if self._proc_lve.resellers_supported(): for lvp_id in self._proc_lve.lvp_id_list(): stats.update(self.__parse_stats(lvp_id=lvp_id)) stats.update(self.__parse_stats()) stats.pop(LIMIT_LVP_ID, None) # remove information about global limits lve_data['old_stats'] = lve_data.get('stats', {}) lve_data['stats'] = stats class LVEUsernamesCollector(LveStatsPlugin): def __init__(self): self.server_id = 'localhost' self.period = 60 * 60 # once an hour self.enabled = True def set_config(self, config): self.enabled = config.get('collect_usernames', 'false').lower() == 'true' self.server_id = config.get('server_id', self.server_id) def execute(self, lve_data): if self.enabled: db = clpwd.ClPwd() users = db.get_user_dict() lve_data['users'] = [(u.pw_uid, u.pw_name, self.server_id) for u in list(users.values())] class CPUInfoCollector(LveStatsPlugin): """ Collects information on number of cores, and total # of Hz """ def get_cpuinfo_file(self): """ This should make it trivial to mock up that file """ return open('/proc/cpuinfo', 'r', encoding='utf-8') @staticmethod def count(f): """ Method that counts number of cores and cpu herz for version > 4. In modern lve, cpu usage is always calculated as number of virtual ticks on a processor that has 1Ghz frequency on each core. :return: procs, total_hz """ procs = 0 line = f.readline() while line: if line.lower().find('processor') >= 0: procs += 1 line = f.readline() total_hz = GIGAHERZ * procs return procs, total_hz def execute(self, lve_data): f = self.get_cpuinfo_file() lve_data['procs'], lve_data['totalHz'] = self.count(f) f.close()
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