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657 lines
24 KiB
Python
657 lines
24 KiB
Python
#!/usr/bin/python
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# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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import array
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import fcntl
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import glob
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import platform
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import re
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import socket
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import struct
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try:
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import selinux
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HAVE_SELINUX=True
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except ImportError:
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HAVE_SELINUX=False
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try:
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import json
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except ImportError:
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import simplejson as json
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class Facts(object):
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"""
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This class should only attempt to populate those facts that
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are mostly generic to all systems. This includes platform facts,
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service facts (eg. ssh keys or selinux), and distribution facts.
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Anything that requires extensive code or may have more than one
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possible implementation to establish facts for a given topic should
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subclass Facts.
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"""
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_I386RE = re.compile(r'i[3456]86')
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# For the most part, we assume that platform.dist() will tell the truth.
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# This is the fallback to handle unknowns or exceptions
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OSDIST_DICT = { '/etc/redhat-release': 'RedHat',
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'/etc/vmware-release': 'VMwareESX' }
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SELINUX_MODE_DICT = { 1: 'enforcing', 0: 'permissive', -1: 'disabled' }
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def __init__(self):
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self.facts = {}
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self.get_platform_facts()
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self.get_distribution_facts()
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self.get_public_ssh_host_keys()
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self.get_selinux_facts()
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def populate(self):
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return self.facts
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# Platform
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# patform.system() can be Linux, Darwin, Java, or Windows
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def get_platform_facts(self):
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self.facts['system'] = platform.system()
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self.facts['kernel'] = platform.release()
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self.facts['machine'] = platform.machine()
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self.facts['python_version'] = platform.python_version()
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self.facts['fqdn'] = socket.getfqdn()
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self.facts['hostname'] = self.facts['fqdn'].split('.')[0]
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if self.facts['machine'] == 'x86_64':
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self.facts['architecture'] = self.facts['machine']
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elif Facts._I386RE.search(self.facts['machine']):
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self.facts['architecture'] = 'i386'
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else:
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self.facts['archtecture'] = self.facts['machine']
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if self.facts['system'] == 'Linux':
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self.get_distribution_facts()
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# platform.dist() is deprecated in 2.6
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# in 2.6 and newer, you should use platform.linux_distribution()
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def get_distribution_facts(self):
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dist = platform.dist()
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self.facts['distribution'] = dist[0].capitalize() or 'NA'
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self.facts['distribution_version'] = dist[1] or 'NA'
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self.facts['distribution_release'] = dist[2] or 'NA'
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# Try to handle the exceptions now ...
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for (path, name) in Facts.OSDIST_DICT.items():
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if os.path.exists(path):
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if self.facts['distribution'] == 'Fedora':
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pass
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elif name == 'RedHat':
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data = get_file_content(path)
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if 'Red Hat' in data:
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self.facts['distribution'] = name
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else:
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self.facts['distribution'] = data.split()[0]
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else:
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self.facts['distribution'] = name
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def get_public_ssh_host_keys(self):
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dsa = get_file_content('/etc/ssh/ssh_host_dsa_key.pub')
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rsa = get_file_content('/etc/ssh/ssh_host_rsa_key.pub')
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if dsa is None:
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dsa = 'NA'
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else:
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self.facts['ssh_host_key_dsa_public'] = dsa.split()[1]
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if rsa is None:
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rsa = 'NA'
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else:
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self.facts['ssh_host_key_rsa_public'] = rsa.split()[1]
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def get_selinux_facts(self):
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if not HAVE_SELINUX:
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self.facts['selinux'] = False
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return
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self.facts['selinux'] = {}
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if not selinux.is_selinux_enabled():
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self.facts['selinux']['status'] = 'disabled'
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else:
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self.facts['selinux']['status'] = 'enabled'
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self.facts['selinux']['policyvers'] = selinux.security_policyvers()
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(rc, configmode) = selinux.selinux_getenforcemode()
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if rc == 0 and Facts.SELINUX_MODE_DICT.has_key(configmode):
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self.facts['selinux']['config_mode'] = Facts.SELINUX_MODE_DICT[configmode]
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mode = selinux.security_getenforce()
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if Facts.SELINUX_MODE_DICT.has_key(mode):
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self.facts['selinux']['mode'] = Facts.SELINUX_MODE_DICT[mode]
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(rc, policytype) = selinux.selinux_getpolicytype()
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if rc == 0:
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self.facts['selinux']['type'] = policytype
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class Hardware(Facts):
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"""
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This is a generic Hardware subclass of Facts. This should be further
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subclassed to implement per platform. If you subclass this, it
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should define:
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- memfree_mb
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- memtotal_mb
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- swapfree_mb
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- swaptotal_mb
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- processor (a list)
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- processor_cores
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- processor_count
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All subclasses MUST define platform.
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"""
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platform = 'Generic'
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def __new__(cls, *arguments, **keyword):
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subclass = cls
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for sc in Hardware.__subclasses__():
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if sc.platform == platform.system():
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subclass = sc
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return super(cls, subclass).__new__(subclass, *arguments, **keyword)
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def __init__(self):
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Facts.__init__(self)
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def populate(self):
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return self.facts
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class LinuxHardware(Hardware):
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"""
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Linux-specific subclass of Hardware. Defines memory and CPU facts:
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- memfree_mb
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- memtotal_mb
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- swapfree_mb
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- swaptotal_mb
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- processor (a list)
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- processor_cores
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- processor_count
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In addition, it also defines number of DMI facts.
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"""
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platform = 'Linux'
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MEMORY_FACTS = ['MemTotal', 'SwapTotal', 'MemFree', 'SwapFree']
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# DMI bits
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DMI_DICT = { 'form_factor': '/sys/devices/virtual/dmi/id/chassis_type',
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'product_name': '/sys/devices/virtual/dmi/id/product_name',
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'product_serial': '/sys/devices/virtual/dmi/id/product_serial',
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'product_uuid': '/sys/devices/virtual/dmi/id/product_uuid',
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'product_version': '/sys/devices/virtual/dmi/id/product_version',
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'system_vendor': '/sys/devices/virtual/dmi/id/sys_vendor',
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'bios_date': '/sys/devices/virtual/dmi/id/bios_date',
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'bios_version': '/sys/devices/virtual/dmi/id/bios_version' }
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# From smolt and DMI spec
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FORM_FACTOR = [ "Unknown", "Other", "Unknown", "Desktop",
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"Low Profile Desktop", "Pizza Box", "Mini Tower", "Tower",
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"Portable", "Laptop", "Notebook", "Hand Held", "Docking Station",
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"All In One", "Sub Notebook", "Space-saving", "Lunch Box",
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"Main Server Chassis", "Expansion Chassis", "Sub Chassis",
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"Bus Expansion Chassis", "Peripheral Chassis", "RAID Chassis",
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"Rack Mount Chassis", "Sealed-case PC", "Multi-system",
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"CompactPCI", "AdvancedTCA" ]
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def __init__(self):
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Hardware.__init__(self)
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def populate(self):
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self.get_cpu_facts()
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self.get_memory_facts()
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self.get_dmi_facts()
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return self.facts
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def get_memory_facts(self):
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if not os.access("/proc/meminfo", os.R_OK):
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return
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for line in open("/proc/meminfo").readlines():
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data = line.split(":", 1)
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key = data[0]
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if key in LinuxHardware.MEMORY_FACTS:
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val = data[1].strip().split(' ')[0]
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self.facts["%s_mb" % key.lower()] = long(val) / 1024
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def get_cpu_facts(self):
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i = 0
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physid = 0
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sockets = {}
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if not os.access("/proc/cpuinfo", os.R_OK):
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return
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self.facts['processor'] = []
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for line in open("/proc/cpuinfo").readlines():
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data = line.split(":", 1)
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key = data[0].strip()
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if key == 'model name':
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if 'processor' not in self.facts:
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self.facts['processor'] = []
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self.facts['processor'].append(data[1].strip())
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i += 1
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elif key == 'physical id':
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physid = data[1].strip()
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if physid not in sockets:
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sockets[physid] = 1
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elif key == 'cpu cores':
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sockets[physid] = int(data[1].strip())
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if len(sockets) > 0:
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self.facts['processor_count'] = len(sockets)
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self.facts['processor_cores'] = reduce(lambda x, y: x + y, sockets.values())
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else:
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self.facts['processor_count'] = i
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self.facts['processor_cores'] = 'NA'
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def get_dmi_facts(self):
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for (key,path) in LinuxHardware.DMI_DICT.items():
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data = get_file_content(path)
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if data is not None:
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if key == 'form_factor':
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self.facts['form_factor'] = LinuxHardware.FORM_FACTOR[int(data)]
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else:
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self.facts[key] = data
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else:
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self.facts[key] = 'NA'
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class SunOSHardware(Hardware):
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"""
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In addition to the generic memory and cpu facts, this also sets
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swap_reserved_mb and swap_allocated_mb that is available from *swap -s*.
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"""
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platform = 'SunOS'
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def __init__(self):
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Hardware.__init__(self)
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def populate(self):
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self.get_cpu_facts()
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self.get_memory_facts()
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return self.facts
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def get_cpu_facts(self):
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cmd = subprocess.Popen("/usr/sbin/psrinfo -v", shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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self.facts['processor'] = []
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for line in out.split('\n'):
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if 'processor operates' in line:
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if 'processor' not in self.facts:
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self.facts['processor'] = []
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self.facts['processor'].append(line.strip())
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self.facts['processor_cores'] = 'NA'
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self.facts['processor_count'] = len(self.facts['processor'])
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def get_memory_facts(self):
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cmd = subprocess.Popen("/usr/sbin/prtconf", shell=False,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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for line in out.split('\n'):
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if 'Memory size' in line:
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self.facts['memtotal_mb'] = line.split()[2]
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cmd = subprocess.Popen("/usr/sbin/swap -s", shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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allocated = long(out.split()[1][:-1])
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reserved = long(out.split()[5][:-1])
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used = long(out.split()[8][:-1])
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free = long(out.split()[10][:-1])
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self.facts['swapfree_mb'] = free / 1024
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self.facts['swaptotal_mb'] = (free + used) / 1024
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self.facts['swap_allocated_mb'] = allocated / 1024
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self.facts['swap_reserved_mb'] = reserved / 1024
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class FreeBSDHardware(Hardware):
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"""
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FreeBSD-specific subclass of Hardware. Defines memory and CPU facts:
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- memfree_mb
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- memtotal_mb
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- swapfree_mb
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- swaptotal_mb
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- processor (a list)
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- processor_cores
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- processor_count
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"""
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platform = 'FreeBSD'
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DMESG_BOOT = '/var/run/dmesg.boot'
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def __init__(self):
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Hardware.__init__(self)
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def populate(self):
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self.get_cpu_facts()
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self.get_memory_facts()
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return self.facts
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def get_cpu_facts(self):
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self.facts['processor'] = []
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cmd = subprocess.Popen("/sbin/sysctl -n hw.ncpu", shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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self.facts['processor_count'] = out.strip()
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for line in open(FreeBSDHardware.DMESG_BOOT).readlines():
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if 'CPU:' in line:
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cpu = re.sub(r'CPU:\s+', r"", line)
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self.facts['processor'].append(cpu.strip())
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if 'Logical CPUs per core' in line:
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self.facts['processor_cores'] = line.split()[4]
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def get_memory_facts(self):
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cmd = subprocess.Popen("/sbin/sysctl vm.stats", shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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for line in out.split('\n'):
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data = line.split()
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if 'vm.stats.vm.v_page_size' in line:
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pagesize = long(data[1])
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if 'vm.stats.vm.v_page_count' in line:
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pagecount = long(data[1])
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if 'vm.stats.vm.v_free_count' in line:
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freecount = long(data[1])
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self.facts['memtotal_mb'] = pagesize * pagecount / 1024 / 1024
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self.facts['memfree_mb'] = pagesize * freecount / 1024 / 1024
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# Get swapinfo. swapinfo output looks like:
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# Device 1M-blocks Used Avail Capacity
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# /dev/ada0p3 314368 0 314368 0%
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#
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cmd = subprocess.Popen("/usr/sbin/swapinfo -m", shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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lines = out.split('\n')
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if len(lines[-1]) == 0:
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lines.pop()
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data = lines[-1].split()
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self.facts['swaptotal_mb'] = data[1]
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self.facts['swapfree_mb'] = data[3]
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class Network(Facts):
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"""
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This is a generic Network subclass of Facts. This should be further
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subclassed to implement per platform. If you subclass this,
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you must define:
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- interfaces (a list of interface names)
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- interface_<name> dictionary of ipv4, ipv6, and mac address information.
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All subclasses MUST define platform.
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"""
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platform = 'Generic'
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IPV6_SCOPE = { '0' : 'global',
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'10' : 'host',
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'20' : 'link',
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'40' : 'admin',
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'50' : 'site',
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'80' : 'organization' }
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def __new__(cls, *arguments, **keyword):
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subclass = cls
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for sc in Network.__subclasses__():
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if sc.platform == platform.system():
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subclass = sc
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return super(cls, subclass).__new__(subclass, *arguments, **keyword)
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def __init__(self):
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Facts.__init__(self)
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def populate(self):
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return self.facts
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class LinuxNetwork(Network):
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"""
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This is a Linux-specific subclass of Network. It defines
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- interfaces (a list of interface names)
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- interface_<name> dictionary of ipv4, ipv6, and mac address information.
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"""
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platform = 'Linux'
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def __init__(self):
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Network.__init__(self)
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def populate(self):
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self.facts['interfaces'] = self.get_interfaces()
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self.get_interface_facts()
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self.get_ipv4_facts()
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self.get_ipv6_facts()
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return self.facts
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# get list of interfaces
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def get_interfaces(self):
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names = []
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data = get_file_content('/proc/net/dev')
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# Format of /proc/net/dev is:
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# Inter-| Receive ...
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# face |bytes ...
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# lo: 595059
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for line in data.split('\n'):
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if ':' in line:
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names.append(line.split(':')[0].strip())
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return names
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def get_iface_hwaddr(self, iface):
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data = get_file_content('/sys/class/net/%s/address' % iface)
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if data is None:
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return 'unknown'
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else:
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return data.strip()
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def get_interface_facts(self):
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for iface in self.facts['interfaces']:
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if iface not in self.facts:
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self.facts[iface] = {}
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self.facts[iface] = { 'macaddress': self.get_iface_hwaddr(iface) }
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if os.path.exists('/sys/class/net/%s/mtu' % iface):
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mtu = get_file_content('/sys/class/net/%s/mtu' % iface)
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self.facts[iface]['mtu'] = mtu.strip()
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def get_ipv4_facts(self):
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for iface in self.facts['interfaces']:
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# This is lame, but there doesn't appear to be a good way
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# to get all addresses for both IPv4 and IPv6.
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cmd = subprocess.Popen("env LANG=\"\" /sbin/ifconfig %s" % iface, shell=True,
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stdout=subprocess.PIPE, stderr=subprocess.PIPE)
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out, err = cmd.communicate()
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for line in out.split('\n'):
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is_ipv4 = False
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data = line.split()
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if 'inet addr' in line:
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if 'ipv4' not in self.facts[iface]:
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self.facts[iface]['ipv4'] = {}
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is_ipv4 = True
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self.facts[iface]['ipv4'] = { 'address': data[1].split(':')[1],
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'netmask': data[-1].split(':')[1] }
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# Slightly different output in net-tools-1.60-134.20120127git
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# Looks like
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# inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255
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elif 'inet ' in line:
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is_ipv4 = True
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if 'ipv4' not in self.facts[iface]:
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self.facts[iface]['ipv4'] = {}
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self.facts[iface]['ipv4'] = { 'address': data[1],
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'netmask': data[3] }
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if is_ipv4:
|
|
ip = struct.unpack("!L", socket.inet_aton(self.facts[iface]['ipv4']['address']))[0]
|
|
mask = struct.unpack("!L", socket.inet_aton(self.facts[iface]['ipv4']['netmask']))[0]
|
|
self.facts[iface]['ipv4']['network'] = socket.inet_ntoa(struct.pack("!L", ip & mask))
|
|
|
|
def get_ipv6_facts(self):
|
|
if not socket.has_ipv6:
|
|
return
|
|
data = get_file_content('/proc/net/if_inet6')
|
|
if data is None:
|
|
return
|
|
for line in data.split('\n'):
|
|
l = line.split()
|
|
iface = l[5]
|
|
if 'ipv6' not in self.facts[iface]:
|
|
self.facts[iface]['ipv6'] = []
|
|
scope = l[3]
|
|
if Network.IPV6_SCOPE.has_key(l[3]):
|
|
scope = Network.IPV6_SCOPE[l[3]]
|
|
prefix = int(l[2], 16)
|
|
str_addr = ':'.join( [ l[0][i:i+4] for i in range(0, len(l[0]), 4) ] )
|
|
# Normalize ipv6 address from format in /proc/net/if_inet6
|
|
addr = socket.inet_ntop(socket.AF_INET6,
|
|
socket.inet_pton(socket.AF_INET6, str_addr))
|
|
self.facts[iface]['ipv6'].append( { 'address': addr,
|
|
'prefix': prefix,
|
|
'scope': scope } )
|
|
|
|
class Virtual(Facts):
|
|
"""
|
|
This is a generic Virtual subclass of Facts. This should be further
|
|
subclassed to implement per platform. If you subclass this,
|
|
you should define:
|
|
- virtualization_type
|
|
- virtualization_role
|
|
|
|
All subclasses MUST define platform.
|
|
"""
|
|
|
|
def __new__(cls, *arguments, **keyword):
|
|
subclass = cls
|
|
for sc in Virtual.__subclasses__():
|
|
if sc.platform == platform.system():
|
|
subclass = sc
|
|
return super(cls, subclass).__new__(subclass, *arguments, **keyword)
|
|
|
|
def __init__(self):
|
|
Facts.__init__(self)
|
|
|
|
def populate(self):
|
|
return self.facts
|
|
|
|
class LinuxVirtual(Virtual):
|
|
"""
|
|
This is a Linux-specific subclass of Virtual. It defines
|
|
- virtualization_type
|
|
- virtualization_role
|
|
"""
|
|
platform = 'Linux'
|
|
|
|
def __init__(self):
|
|
Virtual.__init__(self)
|
|
|
|
def populate(self):
|
|
self.get_virtual_facts()
|
|
return self.facts
|
|
|
|
def get_virtual_facts(self):
|
|
if os.path.exists("/proc/xen"):
|
|
self.facts['virtualization_type'] = 'xen'
|
|
self.facts['virtualization_role'] = 'guest'
|
|
if os.path.exists("/proc/xen/capabilities"):
|
|
self.facts['virtualization_role'] = 'host'
|
|
if os.path.exists("/proc/modules"):
|
|
modules = []
|
|
for line in open("/proc/modules").readlines():
|
|
data = line.split(" ", 1)
|
|
modules.append(data[0])
|
|
if 'kvm' in modules:
|
|
self.facts['virtualization_type'] = 'kvm'
|
|
self.facts['virtualization_role'] = 'host'
|
|
elif 'vboxdrv' in modules:
|
|
self.facts['virtualization_type'] = 'virtualbox'
|
|
self.facts['virtualization_role'] = 'host'
|
|
elif 'vboxguest' in modules:
|
|
self.facts['virtualization_type'] = 'virtualbox'
|
|
self.facts['virtualization_role'] = 'guest'
|
|
data = get_file_content('/proc/cpuinfo')
|
|
if 'QEMU' in data:
|
|
self.facts['virtualization_type'] = 'kvm'
|
|
self.facts['virtualization_role'] = 'guest'
|
|
if 'distribution' in self.facts and self.facts['distribution'] == 'VMwareESX':
|
|
self.facts['virtualization_type'] = 'VMware'
|
|
self.facts['virtualization_role'] = 'host'
|
|
# You can spawn a dmidecode process and parse that or infer from devices
|
|
for dev_model in glob.glob('/sys/block/?da/device/vendor'):
|
|
info = open(dev_model).read()
|
|
if 'VMware' in info:
|
|
self.facts['virtualization_type'] = 'VMware'
|
|
self.facts['virtualization_role'] = 'guest'
|
|
elif 'Virtual HD' in info or 'Virtual CD' in info:
|
|
self.facts['virtualization_type'] = 'VirtualPC'
|
|
self.facts['virtualization_role'] = 'guest'
|
|
|
|
def get_file_content(path):
|
|
data = None
|
|
if os.path.exists(path) and os.access(path, os.R_OK):
|
|
data = open(path).read().strip()
|
|
if len(data) == 0:
|
|
data = None
|
|
return data
|
|
|
|
def ansible_facts():
|
|
facts = {}
|
|
facts.update(Facts().populate())
|
|
facts.update(Hardware().populate())
|
|
facts.update(Network().populate())
|
|
facts.update(Virtual().populate())
|
|
return facts
|
|
|
|
# ===========================================
|
|
|
|
def run_setup(module):
|
|
|
|
setup_options = {}
|
|
facts = ansible_facts()
|
|
|
|
for (k, v) in facts.items():
|
|
setup_options["ansible_%s" % k] = v
|
|
|
|
# if facter is installed, and we can use --json because
|
|
# ruby-json is ALSO installed, include facter data in the JSON
|
|
|
|
if os.path.exists("/usr/bin/facter"):
|
|
cmd = subprocess.Popen("/usr/bin/facter --json", shell=True,
|
|
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = cmd.communicate()
|
|
facter = True
|
|
try:
|
|
facter_ds = json.loads(out)
|
|
except:
|
|
facter = False
|
|
if facter:
|
|
for (k,v) in facter_ds.items():
|
|
setup_options["facter_%s" % k] = v
|
|
|
|
# ditto for ohai, but just top level string keys
|
|
# because it contains a lot of nested stuff we can't use for
|
|
# templating w/o making a nicer key for it (TODO)
|
|
|
|
if os.path.exists("/usr/bin/ohai"):
|
|
cmd = subprocess.Popen("/usr/bin/ohai", shell=True,
|
|
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
|
|
out, err = cmd.communicate()
|
|
ohai = True
|
|
try:
|
|
ohai_ds = json.loads(out)
|
|
except:
|
|
ohai = False
|
|
if ohai:
|
|
for (k,v) in ohai_ds.items():
|
|
if type(v) == str or type(v) == unicode:
|
|
k2 = "ohai_%s" % k
|
|
setup_options[k2] = v
|
|
|
|
setup_result = {}
|
|
setup_result['ansible_facts'] = setup_options
|
|
|
|
# hack to keep --verbose from showing all the setup module results
|
|
setup_result['verbose_override'] = True
|
|
|
|
return setup_result
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec = dict()
|
|
)
|
|
data = run_setup(module)
|
|
module.exit_json(**data)
|
|
|
|
# this is magic, see lib/ansible/module_common.py
|
|
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
|
|
main()
|
|
|