#!/usr/bin/python # -*- coding: utf-8 -*- # (c) 2012, Michael DeHaan # # This file is part of Ansible # # Ansible 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. # # Ansible 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 Ansible. If not, see . import array import fcntl import glob import platform import re import socket import struct try: import selinux HAVE_SELINUX=True except ImportError: HAVE_SELINUX=False try: import json except ImportError: import simplejson as json class Facts(object): """ This class should only attempt to populate those facts that are mostly generic to all systems. This includes platform facts, service facts (eg. ssh keys or selinux), and distribution facts. Anything that requires extensive code or may have more than one possible implementation to establish facts for a given topic should subclass Facts. """ _I386RE = re.compile(r'i[3456]86') # For the most part, we assume that platform.dist() will tell the truth. # This is the fallback to handle unknowns or exceptions OSDIST_DICT = { '/etc/redhat-release': 'RedHat', '/etc/vmware-release': 'VMwareESX' } SELINUX_MODE_DICT = { 1: 'enforcing', 0: 'permissive', -1: 'disabled' } def __init__(self): self.facts = {} self.get_platform_facts() self.get_distribution_facts() self.get_public_ssh_host_keys() self.get_selinux_facts() def populate(self): return self.facts # Platform # patform.system() can be Linux, Darwin, Java, or Windows def get_platform_facts(self): self.facts['system'] = platform.system() self.facts['kernel'] = platform.release() self.facts['machine'] = platform.machine() self.facts['python_version'] = platform.python_version() self.facts['fqdn'] = socket.getfqdn() self.facts['hostname'] = self.facts['fqdn'].split('.')[0] if self.facts['machine'] == 'x86_64': self.facts['architecture'] = self.facts['machine'] elif Facts._I386RE.search(self.facts['machine']): self.facts['architecture'] = 'i386' else: self.facts['archtecture'] = self.facts['machine'] if self.facts['system'] == 'Linux': self.get_distribution_facts() # platform.dist() is deprecated in 2.6 # in 2.6 and newer, you should use platform.linux_distribution() def get_distribution_facts(self): dist = platform.dist() self.facts['distribution'] = dist[0].capitalize() or 'NA' self.facts['distribution_version'] = dist[1] or 'NA' self.facts['distribution_release'] = dist[2] or 'NA' # Try to handle the exceptions now ... for (path, name) in Facts.OSDIST_DICT.items(): if os.path.exists(path): if self.facts['distribution'] == 'Fedora': pass elif name == 'RedHat': data = get_file_content(path) if 'Red Hat' in data: self.facts['distribution'] = name else: self.facts['distribution'] = data.split()[0] else: self.facts['distribution'] = name def get_public_ssh_host_keys(self): dsa = get_file_content('/etc/ssh/ssh_host_dsa_key.pub') rsa = get_file_content('/etc/ssh/ssh_host_rsa_key.pub') if dsa is None: dsa = 'NA' else: self.facts['ssh_host_key_dsa_public'] = dsa.split()[1] if rsa is None: rsa = 'NA' else: self.facts['ssh_host_key_rsa_public'] = rsa.split()[1] def get_selinux_facts(self): if not HAVE_SELINUX: self.facts['selinux'] = False return self.facts['selinux'] = {} if not selinux.is_selinux_enabled(): self.facts['selinux']['status'] = 'disabled' else: self.facts['selinux']['status'] = 'enabled' self.facts['selinux']['policyvers'] = selinux.security_policyvers() (rc, configmode) = selinux.selinux_getenforcemode() if rc == 0 and Facts.SELINUX_MODE_DICT.has_key(configmode): self.facts['selinux']['config_mode'] = Facts.SELINUX_MODE_DICT[configmode] mode = selinux.security_getenforce() if Facts.SELINUX_MODE_DICT.has_key(mode): self.facts['selinux']['mode'] = Facts.SELINUX_MODE_DICT[mode] (rc, policytype) = selinux.selinux_getpolicytype() if rc == 0: self.facts['selinux']['type'] = policytype class Hardware(Facts): """ This is a generic Hardware subclass of Facts. This should be further subclassed to implement per platform. If you subclass this, it should define: - memfree_mb - memtotal_mb - swapfree_mb - swaptotal_mb - processor (a list) - processor_cores - processor_count All subclasses MUST define platform. """ platform = 'Generic' def __new__(cls, *arguments, **keyword): subclass = cls for sc in Hardware.__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 LinuxHardware(Hardware): """ Linux-specific subclass of Hardware. Defines memory and CPU facts: - memfree_mb - memtotal_mb - swapfree_mb - swaptotal_mb - processor (a list) - processor_cores - processor_count In addition, it also defines number of DMI facts. """ platform = 'Linux' MEMORY_FACTS = ['MemTotal', 'SwapTotal', 'MemFree', 'SwapFree'] # DMI bits DMI_DICT = { 'form_factor': '/sys/devices/virtual/dmi/id/chassis_type', 'product_name': '/sys/devices/virtual/dmi/id/product_name', 'product_serial': '/sys/devices/virtual/dmi/id/product_serial', 'product_uuid': '/sys/devices/virtual/dmi/id/product_uuid', 'product_version': '/sys/devices/virtual/dmi/id/product_version', 'system_vendor': '/sys/devices/virtual/dmi/id/sys_vendor', 'bios_date': '/sys/devices/virtual/dmi/id/bios_date', 'bios_version': '/sys/devices/virtual/dmi/id/bios_version' } # From smolt and DMI spec # See http://www.dmtf.org/sites/default/files/standards/documents/DSP0134_2.7.0.pdf FORM_FACTOR = [ "Unknown", "Other", "Unknown", "Desktop", "Low Profile Desktop", "Pizza Box", "Mini Tower", "Tower", "Portable", "Laptop", "Notebook", "Hand Held", "Docking Station", "All In One", "Sub Notebook", "Space-saving", "Lunch Box", "Main Server Chassis", "Expansion Chassis", "Sub Chassis", "Bus Expansion Chassis", "Peripheral Chassis", "RAID Chassis", "Rack Mount Chassis", "Sealed-case PC", "Multi-system", "CompactPCI", "AdvancedTCA", "Blade" ] def __init__(self): Hardware.__init__(self) def populate(self): self.get_cpu_facts() self.get_memory_facts() self.get_dmi_facts() return self.facts def get_memory_facts(self): if not os.access("/proc/meminfo", os.R_OK): return for line in open("/proc/meminfo").readlines(): data = line.split(":", 1) key = data[0] if key in LinuxHardware.MEMORY_FACTS: val = data[1].strip().split(' ')[0] self.facts["%s_mb" % key.lower()] = long(val) / 1024 def get_cpu_facts(self): i = 0 physid = 0 sockets = {} if not os.access("/proc/cpuinfo", os.R_OK): return self.facts['processor'] = [] for line in open("/proc/cpuinfo").readlines(): data = line.split(":", 1) key = data[0].strip() if key == 'model name': if 'processor' not in self.facts: self.facts['processor'] = [] self.facts['processor'].append(data[1].strip()) i += 1 elif key == 'physical id': physid = data[1].strip() if physid not in sockets: sockets[physid] = 1 elif key == 'cpu cores': sockets[physid] = int(data[1].strip()) if len(sockets) > 0: self.facts['processor_count'] = len(sockets) self.facts['processor_cores'] = reduce(lambda x, y: x + y, sockets.values()) else: self.facts['processor_count'] = i self.facts['processor_cores'] = 'NA' def get_dmi_facts(self): for (key,path) in LinuxHardware.DMI_DICT.items(): data = get_file_content(path) if data is not None: if key == 'form_factor': try: self.facts['form_factor'] = LinuxHardware.FORM_FACTOR[int(data)] except IndexError, e: self.facts['form_factor'] = 'unknown (%s)' % data else: self.facts[key] = data else: self.facts[key] = 'NA' class SunOSHardware(Hardware): """ In addition to the generic memory and cpu facts, this also sets swap_reserved_mb and swap_allocated_mb that is available from *swap -s*. """ platform = 'SunOS' def __init__(self): Hardware.__init__(self) def populate(self): self.get_cpu_facts() self.get_memory_facts() return self.facts def get_cpu_facts(self): cmd = subprocess.Popen("/usr/sbin/psrinfo -v", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() self.facts['processor'] = [] for line in out.split('\n'): if 'processor operates' in line: if 'processor' not in self.facts: self.facts['processor'] = [] self.facts['processor'].append(line.strip()) self.facts['processor_cores'] = 'NA' self.facts['processor_count'] = len(self.facts['processor']) def get_memory_facts(self): cmd = subprocess.Popen("/usr/sbin/prtconf", shell=False, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() for line in out.split('\n'): if 'Memory size' in line: self.facts['memtotal_mb'] = line.split()[2] cmd = subprocess.Popen("/usr/sbin/swap -s", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() allocated = long(out.split()[1][:-1]) reserved = long(out.split()[5][:-1]) used = long(out.split()[8][:-1]) free = long(out.split()[10][:-1]) self.facts['swapfree_mb'] = free / 1024 self.facts['swaptotal_mb'] = (free + used) / 1024 self.facts['swap_allocated_mb'] = allocated / 1024 self.facts['swap_reserved_mb'] = reserved / 1024 class FreeBSDHardware(Hardware): """ FreeBSD-specific subclass of Hardware. Defines memory and CPU facts: - memfree_mb - memtotal_mb - swapfree_mb - swaptotal_mb - processor (a list) - processor_cores - processor_count """ platform = 'FreeBSD' DMESG_BOOT = '/var/run/dmesg.boot' def __init__(self): Hardware.__init__(self) def populate(self): self.get_cpu_facts() self.get_memory_facts() return self.facts def get_cpu_facts(self): self.facts['processor'] = [] cmd = subprocess.Popen("/sbin/sysctl -n hw.ncpu", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() self.facts['processor_count'] = out.strip() for line in open(FreeBSDHardware.DMESG_BOOT).readlines(): if 'CPU:' in line: cpu = re.sub(r'CPU:\s+', r"", line) self.facts['processor'].append(cpu.strip()) if 'Logical CPUs per core' in line: self.facts['processor_cores'] = line.split()[4] def get_memory_facts(self): cmd = subprocess.Popen("/sbin/sysctl vm.stats", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() for line in out.split('\n'): data = line.split() if 'vm.stats.vm.v_page_size' in line: pagesize = long(data[1]) if 'vm.stats.vm.v_page_count' in line: pagecount = long(data[1]) if 'vm.stats.vm.v_free_count' in line: freecount = long(data[1]) self.facts['memtotal_mb'] = pagesize * pagecount / 1024 / 1024 self.facts['memfree_mb'] = pagesize * freecount / 1024 / 1024 # Get swapinfo. swapinfo output looks like: # Device 1M-blocks Used Avail Capacity # /dev/ada0p3 314368 0 314368 0% # cmd = subprocess.Popen("/usr/sbin/swapinfo -m", shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() lines = out.split('\n') if len(lines[-1]) == 0: lines.pop() data = lines[-1].split() self.facts['swaptotal_mb'] = data[1] self.facts['swapfree_mb'] = data[3] class Network(Facts): """ This is a generic Network subclass of Facts. This should be further subclassed to implement per platform. If you subclass this, you must define: - interfaces (a list of interface names) - interface_ dictionary of ipv4, ipv6, and mac address information. All subclasses MUST define platform. """ platform = 'Generic' IPV6_SCOPE = { '0' : 'global', '10' : 'host', '20' : 'link', '40' : 'admin', '50' : 'site', '80' : 'organization' } def __new__(cls, *arguments, **keyword): subclass = cls for sc in Network.__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 LinuxNetwork(Network): """ This is a Linux-specific subclass of Network. It defines - interfaces (a list of interface names) - interface_ dictionary of ipv4, ipv6, and mac address information. """ platform = 'Linux' def __init__(self): Network.__init__(self) def populate(self): self.facts['interfaces'] = self.get_interfaces() self.get_interface_facts() self.get_ipv4_facts() self.get_ipv6_facts() return self.facts # get list of interfaces def get_interfaces(self): names = [] data = get_file_content('/proc/net/dev') # Format of /proc/net/dev is: # Inter-| Receive ... # face |bytes ... # lo: 595059 for line in data.split('\n'): if ':' in line: names.append(line.split(':')[0].strip()) return names def get_iface_hwaddr(self, iface): data = get_file_content('/sys/class/net/%s/address' % iface) if data is None: return 'unknown' else: return data.strip() def get_interface_facts(self): for iface in self.facts['interfaces']: if iface not in self.facts: self.facts[iface] = {} self.facts[iface] = { 'macaddress': self.get_iface_hwaddr(iface) } if os.path.exists('/sys/class/net/%s/mtu' % iface): mtu = get_file_content('/sys/class/net/%s/mtu' % iface) self.facts[iface]['mtu'] = mtu.strip() def get_ipv4_facts(self): for iface in self.facts['interfaces']: # This is lame, but there doesn't appear to be a good way # to get all addresses for both IPv4 and IPv6. cmd = subprocess.Popen("env LANG=\"\" /sbin/ifconfig %s" % iface, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE) out, err = cmd.communicate() for line in out.split('\n'): is_ipv4 = False data = line.split() if 'inet addr' in line: if 'ipv4' not in self.facts[iface]: self.facts[iface]['ipv4'] = {} is_ipv4 = True self.facts[iface]['ipv4'] = { 'address': data[1].split(':')[1], 'netmask': data[-1].split(':')[1] } # Slightly different output in net-tools-1.60-134.20120127git # Looks like # inet 192.168.1.2 netmask 255.255.255.0 broadcast 192.168.1.255 elif 'inet ' in line: is_ipv4 = True if 'ipv4' not in self.facts[iface]: self.facts[iface]['ipv4'] = {} self.facts[iface]['ipv4'] = { 'address': data[1], 'netmask': data[3] } 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 #<> main()