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35f6fb1383
* vmware_inventory: permit to group by custom field This permits to create instances, affect some custom fields like EC2 tags and then retrieve groups from custom fields like EC2 inventory * vmware_inventory: Customize skip_keys & add resourceconfig to skip_keys Verify if customfield is a str before processing custom fields for a host
723 lines
25 KiB
Python
Executable file
723 lines
25 KiB
Python
Executable file
#!/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 heriarchy
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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 VMwareMissingHostException(Exception):
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pass
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class VMWareInventory(object):
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__name__ = 'VMWareInventory'
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guest_props = False
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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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cache_dir = 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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validate_certs = True
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host_filters = []
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skip_keys = []
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groupby_patterns = []
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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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bad_types = ['Array', 'disabledMethod', 'declaredAlarmState']
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vimTableMaxDepth = {
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"vim.HostSystem": 2,
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"vim.VirtualMachine": 2,
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}
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custom_fields = {}
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# translation table for attributes to fetch for known vim types
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if not HAS_PYVMOMI:
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vimTable = {}
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else:
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vimTable = {
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vim.Datastore: ['_moId', 'name'],
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vim.ResourcePool: ['_moId', 'name'],
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vim.HostSystem: ['_moId', 'name'],
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}
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@staticmethod
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def _empty_inventory():
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return {"_meta": {"hostvars": {}}}
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def __init__(self, load=True):
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self.inventory = VMWareInventory._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('%s %s' % (datetime.datetime.now(), text))
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def show(self):
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# Data to print
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self.debugl('dumping results')
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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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self.inventory = self.instances_to_inventory(self.get_instances())
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self.write_to_cache(self.inventory)
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def write_to_cache(self, data):
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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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'validate_certs': True,
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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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'skip_keys': 'declaredalarmstate,'
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'disabledmethod,'
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'dynamicproperty,'
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'dynamictype,'
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'environmentbrowser,'
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'managedby,'
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'parent,'
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'childtype,'
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'resourceconfig',
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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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'custom_field_group_prefix': 'vmware_tag_',
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'groupby_custom_field': False}
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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'].items():
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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.debugl('cache path is %s' % self.cache_path_cache)
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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.debugl('server is %s' % self.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.debugl('username is %s' % self.username)
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self.password = os.environ.get('VMWARE_PASSWORD', config.get('vmware', 'password'))
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self.validate_certs = os.environ.get('VMWARE_VALIDATE_CERTS', config.get('vmware', 'validate_certs'))
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if self.validate_certs in ['no', 'false', 'False', False]:
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self.validate_certs = False
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self.debugl('cert validation is %s' % self.validate_certs)
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# behavior control
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self.maxlevel = int(config.get('vmware', 'max_object_level'))
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self.debugl('max object level is %s' % self.maxlevel)
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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.debugl('lower keys is %s' % self.lowerkeys)
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self.skip_keys = list(config.get('vmware', 'skip_keys').split(','))
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self.debugl('skip keys is %s' % self.skip_keys)
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self.host_filters = list(config.get('vmware', 'host_filters').split(','))
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self.debugl('host filters are %s' % self.host_filters)
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self.groupby_patterns = list(config.get('vmware', 'groupby_patterns').split(','))
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self.debugl('groupby patterns are %s' % self.groupby_patterns)
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# Special feature to disable the brute force serialization of the
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# virtulmachine objects. The key name for these properties does not
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# matter because the values are just items for a larger list.
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if config.has_section('properties'):
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self.guest_props = []
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for prop in config.items('properties'):
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self.guest_props.append(prop[1])
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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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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') and not self.validate_certs:
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context = ssl.SSLContext(ssl.PROTOCOL_SSLv23)
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context.verify_mode = ssl.CERT_NONE
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kwargs['sslContext'] = context
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return self._get_instances(kwargs)
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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 all 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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self.debugl('creating containerview 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("%s total instances in container view" % len(instances))
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if self.args.host:
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instances = [x for x in instances if x.name == self.args.host]
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instance_tuples = []
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for instance in sorted(instances):
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if self.guest_props:
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ifacts = self.facts_from_proplist(instance)
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else:
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ifacts = self.facts_from_vobj(instance)
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instance_tuples.append((instance, ifacts))
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self.debugl('facts collected for all instances')
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cfm = content.customFieldsManager
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if cfm is not None and cfm.field:
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for f in cfm.field:
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if f.managedObjectType == vim.VirtualMachine:
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self.custom_fields[f.key] = f.name;
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self.debugl('%d custom fieds collected' % len(self.custom_fields))
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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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self.debugl('re-indexing instances based on ini settings')
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inventory = VMWareInventory._empty_inventory()
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inventory['all'] = {}
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inventory['all']['hosts'] = []
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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(
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inventory,
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self.config.get('vmware', 'alias_pattern')
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)
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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(
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inventory,
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self.config.get('vmware', 'host_pattern')
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)
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# Reset the inventory keys
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for k, v in name_mapping.items():
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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:
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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.items():
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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.items():
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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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if self.config.get('vmware', 'groupby_custom_field'):
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for k, v in inventory['_meta']['hostvars'].items():
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if 'customvalue' in v:
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for tv in v['customvalue']:
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if not isinstance(tv['value'], str) and not isinstance(tv['value'], unicode):
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continue
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newkey = None
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field_name = self.custom_fields[tv['key']] if tv['key'] in self.custom_fields else tv['key']
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values = []
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keylist = map(lambda x: x.strip(), tv['value'].split(','))
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for kl in keylist:
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try:
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newkey = self.config.get('vmware', 'custom_field_group_prefix') + field_name + '_' + kl
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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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values.append(newkey)
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for tag in values:
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if not tag:
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continue
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if tag not in inventory:
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inventory[tag] = {}
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inventory[tag]['hosts'] = []
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if k not in inventory[tag]['hosts']:
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inventory[tag]['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'].items():
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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)
|
|
if not newkey:
|
|
continue
|
|
elif dtype == 'integer':
|
|
newkey = int(newkey)
|
|
elif dtype == 'boolean':
|
|
if newkey.lower() == 'false':
|
|
newkey = False
|
|
elif newkey.lower() == 'true':
|
|
newkey = True
|
|
elif dtype == 'string':
|
|
pass
|
|
mapping[k] = newkey
|
|
return mapping
|
|
|
|
def facts_from_proplist(self, vm):
|
|
'''Get specific properties instead of serializing everything'''
|
|
|
|
rdata = {}
|
|
for prop in self.guest_props:
|
|
self.debugl('getting %s property for %s' % (prop, vm.name))
|
|
key = prop
|
|
if self.lowerkeys:
|
|
key = key.lower()
|
|
|
|
if '.' not in prop:
|
|
# props without periods are direct attributes of the parent
|
|
rdata[key] = getattr(vm, prop)
|
|
else:
|
|
# props with periods are subkeys of parent attributes
|
|
parts = prop.split('.')
|
|
total = len(parts) - 1
|
|
|
|
# pointer to the current object
|
|
val = None
|
|
# pointer to the current result key
|
|
lastref = rdata
|
|
|
|
for idx, x in enumerate(parts):
|
|
|
|
# if the val wasn't set yet, get it from the parent
|
|
if not val:
|
|
val = getattr(vm, x)
|
|
else:
|
|
# in a subkey, get the subprop from the previous attrib
|
|
try:
|
|
val = getattr(val, x)
|
|
except AttributeError as e:
|
|
self.debugl(e)
|
|
|
|
# lowercase keys if requested
|
|
if self.lowerkeys:
|
|
x = x.lower()
|
|
|
|
# change the pointer or set the final value
|
|
if idx != total:
|
|
if x not in lastref:
|
|
lastref[x] = {}
|
|
lastref = lastref[x]
|
|
else:
|
|
lastref[x] = val
|
|
|
|
return rdata
|
|
|
|
def facts_from_vobj(self, vobj, level=0):
|
|
|
|
''' Traverse a VM object and return a json compliant data structure '''
|
|
|
|
# pyvmomi objects are not yet serializable, but may be one day ...
|
|
# https://github.com/vmware/pyvmomi/issues/21
|
|
|
|
# WARNING:
|
|
# Accessing an object attribute will trigger a SOAP call to the remote.
|
|
# Increasing the attributes collected or the depth of recursion greatly
|
|
# increases runtime duration and potentially memory+network utilization.
|
|
|
|
if level == 0:
|
|
try:
|
|
self.debugl("get facts for %s" % vobj.name)
|
|
except Exception as e:
|
|
self.debugl(e)
|
|
|
|
rdata = {}
|
|
|
|
methods = dir(vobj)
|
|
methods = [str(x) for x in methods if not x.startswith('_')]
|
|
methods = [x for x in methods if x not in self.bad_types]
|
|
methods = [x for x in methods if not x.lower() in self.skip_keys]
|
|
methods = sorted(methods)
|
|
|
|
for method in methods:
|
|
# Attempt to get the method, skip on fail
|
|
try:
|
|
methodToCall = getattr(vobj, method)
|
|
except Exception as e:
|
|
continue
|
|
|
|
# Skip callable methods
|
|
if callable(methodToCall):
|
|
continue
|
|
|
|
if self.lowerkeys:
|
|
method = method.lower()
|
|
|
|
rdata[method] = self._process_object_types(
|
|
methodToCall,
|
|
thisvm=vobj,
|
|
inkey=method,
|
|
)
|
|
|
|
return rdata
|
|
|
|
def _process_object_types(self, vobj, thisvm=None, inkey=None, level=0):
|
|
''' Serialize an object '''
|
|
rdata = {}
|
|
|
|
if type(vobj).__name__ in self.vimTableMaxDepth and level >= self.vimTableMaxDepth[type(vobj).__name__]:
|
|
return rdata
|
|
|
|
if vobj is None:
|
|
rdata = None
|
|
elif type(vobj) in self.vimTable:
|
|
rdata = {}
|
|
for key in self.vimTable[type(vobj)]:
|
|
rdata[key] = getattr(vobj, key)
|
|
|
|
elif issubclass(type(vobj), str) or isinstance(vobj, str):
|
|
if vobj.isalnum():
|
|
rdata = vobj
|
|
else:
|
|
rdata = vobj.decode('ascii', 'ignore')
|
|
elif issubclass(type(vobj), bool) or isinstance(vobj, bool):
|
|
rdata = vobj
|
|
elif issubclass(type(vobj), int) or isinstance(vobj, int):
|
|
rdata = vobj
|
|
elif issubclass(type(vobj), float) or isinstance(vobj, float):
|
|
rdata = vobj
|
|
elif issubclass(type(vobj), long) or isinstance(vobj, long):
|
|
rdata = vobj
|
|
elif issubclass(type(vobj), list) or issubclass(type(vobj), tuple):
|
|
rdata = []
|
|
try:
|
|
vobj = sorted(vobj)
|
|
except Exception:
|
|
pass
|
|
|
|
for idv, vii in enumerate(vobj):
|
|
if level + 1 <= self.maxlevel:
|
|
vid = self._process_object_types(
|
|
vii,
|
|
thisvm=thisvm,
|
|
inkey=inkey + '[' + str(idv) + ']',
|
|
level=(level + 1)
|
|
)
|
|
|
|
if vid:
|
|
rdata.append(vid)
|
|
|
|
elif issubclass(type(vobj), dict):
|
|
pass
|
|
|
|
elif issubclass(type(vobj), object):
|
|
methods = dir(vobj)
|
|
methods = [str(x) for x in methods if not x.startswith('_')]
|
|
methods = [x for x in methods if x not in self.bad_types]
|
|
methods = [x for x in methods if not x.lower() in self.skip_keys]
|
|
methods = sorted(methods)
|
|
|
|
for method in methods:
|
|
# Attempt to get the method, skip on fail
|
|
try:
|
|
methodToCall = getattr(vobj, method)
|
|
except Exception as e:
|
|
continue
|
|
|
|
if callable(methodToCall):
|
|
continue
|
|
|
|
if self.lowerkeys:
|
|
method = method.lower()
|
|
if level + 1 <= self.maxlevel:
|
|
rdata[method] = self._process_object_types(
|
|
methodToCall,
|
|
thisvm=thisvm,
|
|
inkey=inkey + '.' + method,
|
|
level=(level + 1)
|
|
)
|
|
else:
|
|
pass
|
|
|
|
return rdata
|
|
|
|
def get_host_info(self, host):
|
|
|
|
''' Return hostvars for a single host '''
|
|
|
|
if host in self.inventory['_meta']['hostvars']:
|
|
return self.inventory['_meta']['hostvars'][host]
|
|
elif self.args.host and self.inventory['_meta']['hostvars']:
|
|
match = None
|
|
for k, v in self.inventory['_meta']['hostvars']:
|
|
if self.inventory['_meta']['hostvars'][k]['name'] == self.args.host:
|
|
match = k
|
|
break
|
|
if match:
|
|
return self.inventory['_meta']['hostvars'][match]
|
|
else:
|
|
raise VMwareMissingHostException('%s not found' % host)
|
|
else:
|
|
raise VMwareMissingHostException('%s not found' % host)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
# Run the script
|
|
print(VMWareInventory().show())
|
|
|
|
|