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550 lines
18 KiB
Python
550 lines
18 KiB
Python
#!/usr/bin/env python
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# Requirements
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# - pyvmomi >= 6.0.0.2016.4
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# TODO:
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# * more jq examples
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# * optional folder heirarchy
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"""
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$ jq '._meta.hostvars[].config' data.json | head
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{
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"alternateguestname": "",
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"instanceuuid": "5035a5cd-b8e8-d717-e133-2d383eb0d675",
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"memoryhotaddenabled": false,
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"guestfullname": "Red Hat Enterprise Linux 7 (64-bit)",
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"changeversion": "2016-05-16T18:43:14.977925Z",
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"uuid": "4235fc97-5ddb-7a17-193b-9a3ac97dc7b4",
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"cpuhotremoveenabled": false,
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"vpmcenabled": false,
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"firmware": "bios",
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"""
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from __future__ import print_function
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import argparse
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import atexit
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import datetime
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import getpass
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import jinja2
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import os
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import six
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import ssl
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import sys
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import uuid
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from collections import defaultdict
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from six.moves import configparser
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from time import time
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HAS_PYVMOMI = False
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try:
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from pyVmomi import vim
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from pyVim.connect import SmartConnect, Disconnect
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HAS_PYVMOMI = True
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except ImportError:
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pass
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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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hasvcr = False
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try:
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import vcr
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hasvcr = True
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except ImportError:
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pass
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class VMWareInventory(object):
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__name__ = 'VMWareInventory'
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instances = []
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debug = False
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load_dumpfile = None
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write_dumpfile = None
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maxlevel = 1
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lowerkeys = True
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config = None
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cache_max_age = None
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cache_path_cache = None
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cache_path_index = None
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server = None
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port = None
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username = None
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password = None
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host_filters = []
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groupby_patterns = []
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bad_types = ['Array', 'disabledMethod', 'declaredAlarmState']
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if (sys.version_info > (3, 0)):
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safe_types = [int, bool, str, float, None]
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else:
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safe_types = [int, long, bool, str, float, None]
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iter_types = [dict, list]
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skip_keys = ['dynamicproperty', 'dynamictype', 'managedby', 'childtype']
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def _empty_inventory(self):
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return {"_meta" : {"hostvars" : {}}}
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def __init__(self, load=True):
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self.inventory = self._empty_inventory()
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if load:
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# Read settings and parse CLI arguments
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self.parse_cli_args()
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self.read_settings()
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# Check the cache
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cache_valid = self.is_cache_valid()
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# Handle Cache
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if self.args.refresh_cache or not cache_valid:
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self.do_api_calls_update_cache()
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else:
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self.debugl('# loading inventory from cache')
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self.inventory = self.get_inventory_from_cache()
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def debugl(self, text):
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if self.args.debug:
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try:
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text = str(text)
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except UnicodeEncodeError:
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text = text.encode('ascii','ignore')
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print(text)
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def show(self):
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# Data to print
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data_to_print = None
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if self.args.host:
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data_to_print = self.get_host_info(self.args.host)
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elif self.args.list:
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# Display list of instances for inventory
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data_to_print = self.inventory
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return json.dumps(data_to_print, indent=2)
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def is_cache_valid(self):
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''' Determines if the cache files have expired, or if it is still valid '''
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valid = False
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if os.path.isfile(self.cache_path_cache):
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mod_time = os.path.getmtime(self.cache_path_cache)
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current_time = time()
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if (mod_time + self.cache_max_age) > current_time:
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valid = True
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return valid
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def do_api_calls_update_cache(self):
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''' Get instances and cache the data '''
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instances = self.get_instances()
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self.instances = instances
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self.inventory = self.instances_to_inventory(instances)
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self.write_to_cache(self.inventory, self.cache_path_cache)
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def write_to_cache(self, data, cache_path):
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''' Dump inventory to json file '''
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with open(self.cache_path_cache, 'wb') as f:
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f.write(json.dumps(data))
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def get_inventory_from_cache(self):
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''' Read in jsonified inventory '''
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jdata = None
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with open(self.cache_path_cache, 'rb') as f:
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jdata = f.read()
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return json.loads(jdata)
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def read_settings(self):
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''' Reads the settings from the vmware_inventory.ini file '''
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scriptbasename = __file__
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scriptbasename = os.path.basename(scriptbasename)
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scriptbasename = scriptbasename.replace('.py', '')
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defaults = {'vmware': {
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'server': '',
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'port': 443,
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'username': '',
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'password': '',
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'ini_path': os.path.join(os.path.dirname(__file__), '%s.ini' % scriptbasename),
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'cache_name': 'ansible-vmware',
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'cache_path': '~/.ansible/tmp',
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'cache_max_age': 3600,
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'max_object_level': 1,
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'alias_pattern': '{{ config.name + "_" + config.uuid }}',
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'host_pattern': '{{ guest.ipaddress }}',
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'host_filters': '{{ guest.gueststate == "running" }}',
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'groupby_patterns': '{{ guest.guestid }},{{ "templates" if config.template else "guests"}}',
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'lower_var_keys': True }
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}
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if six.PY3:
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config = configparser.ConfigParser()
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else:
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config = configparser.SafeConfigParser()
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# where is the config?
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vmware_ini_path = os.environ.get('VMWARE_INI_PATH', defaults['vmware']['ini_path'])
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vmware_ini_path = os.path.expanduser(os.path.expandvars(vmware_ini_path))
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config.read(vmware_ini_path)
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# apply defaults
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for k,v in defaults['vmware'].iteritems():
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if not config.has_option('vmware', k):
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config.set('vmware', k, str(v))
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# where is the cache?
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self.cache_dir = os.path.expanduser(config.get('vmware', 'cache_path'))
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if self.cache_dir and not os.path.exists(self.cache_dir):
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os.makedirs(self.cache_dir)
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# set the cache filename and max age
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cache_name = config.get('vmware', 'cache_name')
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self.cache_path_cache = self.cache_dir + "/%s.cache" % cache_name
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self.cache_max_age = int(config.getint('vmware', 'cache_max_age'))
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# mark the connection info
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self.server = os.environ.get('VMWARE_SERVER', config.get('vmware', 'server'))
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self.port = int(os.environ.get('VMWARE_PORT', config.get('vmware', 'port')))
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self.username = os.environ.get('VMWARE_USERNAME', config.get('vmware', 'username'))
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self.password = os.environ.get('VMWARE_PASSWORD', config.get('vmware', 'password'))
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# behavior control
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self.maxlevel = int(config.get('vmware', 'max_object_level'))
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self.lowerkeys = config.get('vmware', 'lower_var_keys')
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if type(self.lowerkeys) != bool:
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if str(self.lowerkeys).lower() in ['yes', 'true', '1']:
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self.lowerkeys = True
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else:
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self.lowerkeys = False
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self.host_filters = list(config.get('vmware', 'host_filters').split(','))
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self.groupby_patterns = list(config.get('vmware', 'groupby_patterns').split(','))
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# save the config
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self.config = config
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def parse_cli_args(self):
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''' Command line argument processing '''
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parser = argparse.ArgumentParser(description='Produce an Ansible Inventory file based on PyVmomi')
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parser.add_argument('--debug', action='store_true', default=False,
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help='show debug info')
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parser.add_argument('--list', action='store_true', default=True,
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help='List instances (default: True)')
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parser.add_argument('--host', action='store',
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help='Get all the variables about a specific instance')
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parser.add_argument('--refresh-cache', action='store_true', default=False,
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help='Force refresh of cache by making API requests to VSphere (default: False - use cache files)')
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parser.add_argument('--max-instances', default=None, type=int,
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help='maximum number of instances to retrieve')
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self.args = parser.parse_args()
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def get_instances(self):
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''' Get a list of vm instances with pyvmomi '''
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instances = []
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kwargs = {'host': self.server,
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'user': self.username,
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'pwd': self.password,
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'port': int(self.port) }
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if hasattr(ssl, 'SSLContext'):
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# older ssl libs do not have an SSLContext method:
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# context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
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# AttributeError: 'module' object has no attribute 'SSLContext'
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# older pyvmomi version also do not have an sslcontext kwarg:
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# https://github.com/vmware/pyvmomi/commit/92c1de5056be7c5390ac2a28eb08ad939a4b7cdd
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context = ssl.SSLContext(ssl.PROTOCOL_TLSv1)
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context.verify_mode = ssl.CERT_NONE
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kwargs['sslContext'] = context
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instances = self._get_instances(kwargs)
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return instances
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def _get_instances(self, inkwargs):
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''' Make API calls '''
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instances = []
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si = SmartConnect(**inkwargs)
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self.debugl('# retrieving instances')
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if not si:
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print("Could not connect to the specified host using specified "
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"username and password")
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return -1
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atexit.register(Disconnect, si)
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content = si.RetrieveContent()
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# Create a search container for virtualmachines
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container = content.rootFolder
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viewType = [vim.VirtualMachine]
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recursive = True
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containerView = content.viewManager.CreateContainerView(container, viewType, recursive)
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children = containerView.view
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for child in children:
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# If requested, limit the total number of instances
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if self.args.max_instances:
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if len(instances) >= (self.args.max_instances):
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break
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instances.append(child)
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self.debugl("# total instances retrieved %s" % len(instances))
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instance_tuples = []
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for instance in sorted(instances):
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ifacts = self.facts_from_vobj(instance)
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instance_tuples.append((instance, ifacts))
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return instance_tuples
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def instances_to_inventory(self, instances):
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''' Convert a list of vm objects into a json compliant inventory '''
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inventory = self._empty_inventory()
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inventory['all'] = {}
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inventory['all']['hosts'] = []
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last_idata = None
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total = len(instances)
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for idx,instance in enumerate(instances):
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# make a unique id for this object to avoid vmware's
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# numerous uuid's which aren't all unique.
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thisid = str(uuid.uuid4())
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idata = instance[1]
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# Put it in the inventory
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inventory['all']['hosts'].append(thisid)
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inventory['_meta']['hostvars'][thisid] = idata.copy()
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inventory['_meta']['hostvars'][thisid]['ansible_uuid'] = thisid
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# Make a map of the uuid to the alias the user wants
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name_mapping = self.create_template_mapping(inventory,
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self.config.get('vmware', 'alias_pattern'))
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# Make a map of the uuid to the ssh hostname the user wants
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host_mapping = self.create_template_mapping(inventory,
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self.config.get('vmware', 'host_pattern'))
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# Reset the inventory keys
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for k,v in name_mapping.iteritems():
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if not host_mapping or not k in host_mapping:
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continue
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# set ansible_host (2.x)
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try:
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inventory['_meta']['hostvars'][k]['ansible_host'] = host_mapping[k]
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# 1.9.x backwards compliance
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inventory['_meta']['hostvars'][k]['ansible_ssh_host'] = host_mapping[k]
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except Exception as e:
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continue
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if k == v:
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continue
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# add new key
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inventory['all']['hosts'].append(v)
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inventory['_meta']['hostvars'][v] = inventory['_meta']['hostvars'][k]
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# cleanup old key
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inventory['all']['hosts'].remove(k)
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inventory['_meta']['hostvars'].pop(k, None)
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self.debugl('# pre-filtered hosts:')
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for i in inventory['all']['hosts']:
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self.debugl('# * %s' % i)
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# Apply host filters
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for hf in self.host_filters:
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if not hf:
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continue
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self.debugl('# filter: %s' % hf)
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filter_map = self.create_template_mapping(inventory, hf, dtype='boolean')
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for k,v in filter_map.iteritems():
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if not v:
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# delete this host
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inventory['all']['hosts'].remove(k)
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inventory['_meta']['hostvars'].pop(k, None)
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self.debugl('# post-filter hosts:')
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for i in inventory['all']['hosts']:
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self.debugl('# * %s' % i)
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# Create groups
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for gbp in self.groupby_patterns:
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groupby_map = self.create_template_mapping(inventory, gbp)
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for k,v in groupby_map.iteritems():
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if v not in inventory:
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inventory[v] = {}
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inventory[v]['hosts'] = []
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if k not in inventory[v]['hosts']:
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inventory[v]['hosts'].append(k)
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return inventory
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def create_template_mapping(self, inventory, pattern, dtype='string'):
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''' Return a hash of uuid to templated string from pattern '''
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mapping = {}
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for k,v in inventory['_meta']['hostvars'].iteritems():
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t = jinja2.Template(pattern)
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newkey = None
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try:
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newkey = t.render(v)
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newkey = newkey.strip()
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except Exception as e:
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self.debugl(e)
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if not newkey:
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continue
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elif dtype == 'integer':
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newkey = int(newkey)
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elif dtype == 'boolean':
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if newkey.lower() == 'false':
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newkey = False
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elif newkey.lower() == 'true':
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newkey = True
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elif dtype == 'string':
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pass
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mapping[k] = newkey
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return mapping
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def facts_from_vobj(self, vobj, level=0):
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''' Traverse a VM object and return a json compliant data structure '''
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# pyvmomi objects are not yet serializable, but may be one day ...
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# https://github.com/vmware/pyvmomi/issues/21
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# WARNING:
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# Accessing an object attribute will trigger a SOAP call to the remote.
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# Increasing the attributes collected or the depth of recursion greatly
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# increases runtime duration and potentially memory+network utilization.
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if level == 0:
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try:
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self.debugl("# get facts: %s" % vobj.name)
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except Exception as e:
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self.debugl(e)
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rdata = {}
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methods = dir(vobj)
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methods = [str(x) for x in methods if not x.startswith('_')]
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methods = [x for x in methods if not x in self.bad_types]
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methods = sorted(methods)
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for method in methods:
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# Attempt to get the method, skip on fail
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try:
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methodToCall = getattr(vobj, method)
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except Exception as e:
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continue
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# Skip callable methods
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if callable(methodToCall):
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continue
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if self.lowerkeys:
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method = method.lower()
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rdata[method] = self._process_object_types(methodToCall)
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return rdata
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def _process_object_types(self, vobj, level=0):
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''' Serialize an object '''
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rdata = {}
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if vobj is None:
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rdata = None
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elif issubclass(type(vobj), str) or isinstance(vobj, str):
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rdata = vobj
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elif issubclass(type(vobj), bool) or isinstance(vobj, bool):
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rdata = vobj
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elif issubclass(type(vobj), int) or isinstance(vobj, int):
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rdata = vobj
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elif issubclass(type(vobj), float) or isinstance(vobj, float):
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rdata = vobj
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elif issubclass(type(vobj), long) or isinstance(vobj, long):
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rdata = vobj
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elif issubclass(type(vobj), list) or issubclass(type(vobj), tuple):
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rdata = []
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try:
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vobj = sorted(vobj)
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except Exception as e:
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pass
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for vi in vobj:
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if (level+1 <= self.maxlevel):
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#vid = self.facts_from_vobj(vi, level=(level+1))
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vid = self._process_object_types(vi, level=(level+1))
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if vid:
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rdata.append(vid)
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elif issubclass(type(vobj), dict):
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pass
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elif issubclass(type(vobj), object):
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methods = dir(vobj)
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methods = [str(x) for x in methods if not x.startswith('_')]
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methods = [x for x in methods if not x in self.bad_types]
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methods = sorted(methods)
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for method in methods:
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# Attempt to get the method, skip on fail
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try:
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methodToCall = getattr(vobj, method)
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except Exception as e:
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continue
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if callable(methodToCall):
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continue
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if self.lowerkeys:
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method = method.lower()
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if (level+1 <= self.maxlevel):
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rdata[method] = self._process_object_types(methodToCall, level=(level+1))
|
|
else:
|
|
pass
|
|
|
|
if not rdata:
|
|
rdata = None
|
|
return rdata
|
|
|
|
def get_host_info(self, host):
|
|
|
|
''' Return hostvars for a single host '''
|
|
|
|
return self.inventory['_meta']['hostvars'][host]
|
|
|
|
|
|
if __name__ == "__main__":
|
|
# Run the script
|
|
print(VMWareInventory().show())
|
|
|
|
|