4e72e0273f
Added the inspector interface to hardware agent, also added the snmp implementation of that inspector. Implements: blueprint monitoring-physical-devices Based on the original code at https://github.com/graflu0/ceilometer contributed by Lucas and Toni. Change-Id: I7cbaf94d72d389dc802c42b6ca8939b81a1d6b10 Signed-off-by: Lucas Graf <graflu0@students.zhaw.ch> Signed-off-by: Toni Zehnder <zehndton@students.zhaw.ch> Signed-off-by: Lianhao Lu <lianhao.lu@intel.com>
112 lines
3.0 KiB
Python
112 lines
3.0 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2014 ZHAW SoE
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#
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# Authors: Lucas Graf <graflu0@students.zhaw.ch>
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# Toni Zehnder <zehndton@students.zhaw.ch>
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""Inspector abstraction for read-only access to hardware components"""
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import abc
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import collections
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import six
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# Named tuple representing CPU statistics.
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#
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# cpu1MinLoad: 1 minute load
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# cpu5MinLoad: 5 minute load
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# cpu15MinLoad: 15 minute load
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#
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CPUStats = collections.namedtuple(
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'CPUStats',
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['cpu_1_min', 'cpu_5_min', 'cpu_15_min'])
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# Named tuple representing RAM statistics.
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#
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# total: Total Memory (bytes)
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# used: Used Memory (bytes)
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#
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MemoryStats = collections.namedtuple('MemoryStats', ['total', 'used'])
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# Named tuple representing disks.
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#
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# device: the device name for the disk
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# path: the path from the disk
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#
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Disk = collections.namedtuple('Disk', ['device', 'path'])
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# Named tuple representing disk statistics.
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#
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# size: storage size (bytes)
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# used: storage used (bytes)
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#
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DiskStats = collections.namedtuple('DiskStats', ['size', 'used'])
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# Named tuple representing an interface.
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#
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# name: the name of the interface
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# mac: the MAC of the interface
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# ip: the IP of the interface
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#
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Interface = collections.namedtuple('Interface', ['name', 'mac', 'ip'])
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# Named tuple representing network interface statistics.
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#
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# bandwidth: current bandwidth (bytes/s)
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# rx_bytes: total number of octets received (bytes)
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# tx_bytes: total number of octets transmitted (bytes)
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# error: number of outbound packets not transmitted because of errors
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#
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InterfaceStats = collections.namedtuple(
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'InterfaceStats',
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['bandwidth', 'rx_bytes', 'tx_bytes', 'error'])
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@six.add_metaclass(abc.ABCMeta)
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class Inspector(object):
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@abc.abstractmethod
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def inspect_cpu(self, host):
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"""Inspect the CPU statistics for a host.
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:param host: the target host
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:return: iterator of CPUStats
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"""
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@abc.abstractmethod
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def inspect_disk(self, host):
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"""Inspect the disk statistics for a host.
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:param : the target host
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:return: iterator of tuple (Disk, DiskStats)
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"""
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@abc.abstractmethod
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def inspect_memory(self, host):
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"""Inspect the ram statistics for a host.
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:param : the target host
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:return: iterator of MemoryStats
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"""
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@abc.abstractmethod
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def inspect_network(self, host):
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"""Inspect the network interfaces for a host.
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:param : the target host
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:return: iterator of tuple (Interface, InterfaceStats)
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"""
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