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community.general/library/setup
Stephen Fromm aea022b002 Apply logging of arguments to modules (issue #122) 
The ohai and facter modules use /usr/bin/logger to log the fact that
they have been invoked.  I added 'import os' to the ping module
so that it could have the same syslog statements as the other modules.
I separated the condensed:
    shlex.split(open(argfile, 'r').read())
into two separate statements similar to the other modules.
2012-05-09 15:19:20 -07:00

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#!/usr/bin/python
# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com>
#
# 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 <http://www.gnu.org/licenses/>.
DEFAULT_ANSIBLE_SETUP = "/etc/ansible/setup"
import array
import fcntl
import glob
import sys
import os
import platform
import re
import shlex
import socket
import struct
import subprocess
import traceback
import syslog
try:
import json
except ImportError:
import simplejson as json
_I386RE = re.compile(r'i[3456]86')
SIOCGIFCONF = 0x8912
SIOCGIFHWADDR = 0x8927
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' }
# From smolt and DMI spec
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" ]
# 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' }
def get_file_content(path):
if os.path.exists(path) and os.access(path, os.R_OK):
data = open(path).read().strip()
if len(data) == 0:
data = None
else:
data = None
return data
# platform.dist() is deprecated in 2.6
# in 2.6 and newer, you should use platform.linux_distribution()
def get_distribution_facts(facts):
dist = platform.dist()
facts['distribution'] = dist[0].capitalize() or 'NA'
facts['distribution_version'] = dist[1] or 'NA'
facts['distribution_release'] = dist[2] or 'NA'
# Try to handle the exceptions now ...
for (path, name) in OSDIST_DICT.items():
if os.path.exists(path):
if facts['distribution'] == 'Fedora':
pass
elif name == 'RedHat':
data = get_file_content(path)
if 'Red Hat' in data:
facts['distribution'] = name
else:
facts['distribution'] = data.split()[0]
else:
facts['distribution'] = name
# Platform
# patform.system() can be Linux, Darwin, Java, or Windows
def get_platform_facts(facts):
facts['system'] = platform.system()
facts['kernel'] = platform.release()
facts['machine'] = platform.machine()
facts['python_version'] = platform.python_version()
if facts['machine'] == 'x86_64':
facts['architecture'] = facts['machine']
elif _I386RE.search(facts['machine']):
facts['architecture'] = 'i386'
else:
facts['archtecture'] = facts['machine']
if facts['system'] == 'Linux':
get_distribution_facts(facts)
def get_memory_facts(facts):
if not os.access("/proc/meminfo", os.R_OK):
return facts
for line in open("/proc/meminfo").readlines():
data = line.split(":", 1)
key = data[0]
if key in MEMORY_FACTS:
val = data[1].strip().split(' ')[0]
facts["%s_mb" % key.lower()] = long(val) / 1024
def get_cpu_facts(facts):
i = 0
physid = 0
sockets = {}
if not os.access("/proc/cpuinfo", os.R_OK):
return facts
for line in open("/proc/cpuinfo").readlines():
data = line.split(":", 1)
key = data[0].strip()
if key == 'model name':
if 'processor' not in facts:
facts['processor'] = []
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:
facts['processor_count'] = len(sockets)
facts['processor_cores'] = reduce(lambda x, y: x + y, sockets.values())
else:
facts['processor_count'] = i
facts['processor_cores'] = 'NA'
def get_hardware_facts(facts):
get_memory_facts(facts)
get_cpu_facts(facts)
for (key,path) in DMI_DICT.items():
data = get_file_content(path)
if data is not None:
if key == 'form_factor':
facts['form_factor'] = FORM_FACTOR[int(data)]
else:
facts[key] = data
else:
facts[key] = 'NA'
def get_linux_virtual_facts(facts):
if os.path.exists("/proc/xen"):
facts['virtualization_type'] = 'xen'
facts['virtualization_role'] = 'guest'
if os.path.exists("/proc/xen/capabilities"):
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:
facts['virtualization_type'] = 'kvm'
facts['virtualization_role'] = 'host'
elif 'vboxdrv' in modules:
facts['virtualization_type'] = 'virtualbox'
facts['virtualization_role'] = 'host'
elif 'vboxguest' in modules:
facts['virtualization_type'] = 'virtualbox'
facts['virtualization_role'] = 'guest'
if 'QEMU' in facts['processor'][0]:
facts['virtualization_type'] = 'kvm'
facts['virtualization_role'] = 'guest'
if facts['distribution'] == 'VMwareESX':
facts['virtualization_type'] = 'VMware'
facts['virtualization_role'] = 'host'
# You can spawn a dmidecode process and parse that or infer from devices
for dev_model in glob.glob('/proc/ide/hd*/model'):
info = open(dev_model).read()
if 'VMware' in info:
facts['virtualization_type'] = 'VMware'
facts['virtualization_role'] = 'guest'
elif 'Virtual HD' in info or 'Virtual CD' in info:
facts['virtualization_type'] = 'VirtualPC'
facts['virtualization_role'] = 'guest'
def get_virtual_facts(facts):
facts['virtualization_type'] = 'None'
facts['virtualization_role'] = 'None'
if facts['system'] == 'Linux':
facts = get_linux_virtual_facts(facts)
# get list of interfaces that are up
def get_interfaces():
length = 4096
offset = 32
step = 32
if platform.architecture()[0] == '64bit':
offset = 16
step = 40
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
names = array.array('B', '\0' * length)
bytelen = struct.unpack('iL', fcntl.ioctl(
s.fileno(), SIOCGIFCONF, struct.pack(
'iL', length, names.buffer_info()[0])
))[0]
return [names.tostring()[i:i+offset].split('\0', 1)[0]
for i in range(0, bytelen, step)]
def get_iface_hwaddr(iface):
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
info = fcntl.ioctl(s.fileno(), SIOCGIFHWADDR,
struct.pack('256s', iface[:15]))
return ''.join(['%02x:' % ord(char) for char in info[18:24]])[:-1]
def get_network_facts(facts):
facts['fqdn'] = socket.getfqdn()
facts['hostname'] = facts['fqdn'].split('.')[0]
facts['interfaces'] = get_interfaces()
for iface in facts['interfaces']:
facts[iface] = { 'macaddress': get_iface_hwaddr(iface) }
# 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("/sbin/ifconfig %s" % iface, shell=True,
stdout=subprocess.PIPE, stderr=subprocess.PIPE)
out, err = cmd.communicate()
for line in out.split('\n'):
data = line.split()
if 'inet addr' in line:
if 'ipv4' not in facts[iface]:
facts[iface]['ipv4'] = {}
facts[iface]['ipv4'] = { 'address': data[1].split(':')[1],
'netmask': data[-1].split(':')[1] }
if 'inet6 addr' in line:
(ip, prefix) = data[2].split('/')
scope = data[3].split(':')[1].lower()
if 'ipv6' not in facts[iface]:
facts[iface]['ipv6'] = []
facts[iface]['ipv6'].append( { 'address': ip,
'prefix': prefix,
'scope': scope } )
return facts
def get_public_ssh_host_keys(facts):
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:
facts['ssh_host_key_dsa_public'] = dsa.split()[1]
if rsa is None:
rsa = 'NA'
else:
facts['ssh_host_key_rsa_public'] = rsa.split()[1]
def get_service_facts(facts):
get_public_ssh_host_keys(facts)
def ansible_facts():
facts = {}
get_platform_facts(facts)
get_hardware_facts(facts)
get_virtual_facts(facts)
get_network_facts(facts)
get_service_facts(facts)
return facts
# load config & template variables
if len(sys.argv) == 1:
sys.exit(1)
argfile = sys.argv[1]
if not os.path.exists(argfile):
sys.exit(1)
setup_options = open(argfile).read().strip()
try:
setup_options = json.loads(setup_options)
except:
list_options = shlex.split(setup_options)
setup_options = {}
for opt in list_options:
(k,v) = opt.split("=")
setup_options[k]=v
syslog.openlog('ansible-%s' % os.path.basename(__file__))
syslog.syslog(syslog.LOG_NOTICE, 'Invoked with %s' % setup_options)
ansible_file = os.path.expandvars(setup_options.get('metadata', DEFAULT_ANSIBLE_SETUP))
ansible_dir = os.path.dirname(ansible_file)
# create the config dir if it doesn't exist
if not os.path.exists(ansible_dir):
os.makedirs(ansible_dir)
changed = False
md5sum = None
if not os.path.exists(ansible_file):
changed = True
else:
md5sum = os.popen("md5sum %s" % ansible_file).read().split()[0]
# Get some basic facts in case facter or ohai are not installed
for (k, v) in ansible_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
# write the template/settings file using
# instructions from server
f = open(ansible_file, "w+")
reformat = json.dumps(setup_options, sort_keys=True, indent=4)
f.write(reformat)
f.close()
md5sum2 = os.popen("md5sum %s" % ansible_file).read().split()[0]
if md5sum != md5sum2:
changed = True
setup_result = {}
setup_result['written'] = ansible_file
setup_result['changed'] = changed
setup_result['md5sum'] = md5sum2
setup_result['ansible_facts'] = setup_options
print json.dumps(setup_result)
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