ansible/plugins/inventory/vmware.py

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
VMWARE external inventory script
=================================
shamelessly copied from existing inventory scripts.
This script and it's ini can be used more than once,
i.e. vmware.py/vmware_colo.ini vmware_idf.py/vmware_idf.ini
(script can be link)
so if you don't have clustered vcenter but multiple esx machines or
just diff clusters you can have an inventory per each and automatically
group hosts based on file name or specify a group in the ini.
You can also use <SCRIPT_NAME>_HOST|USER|PASSWORD environment variables
to override the ini.
'''
import os
import sys
import time
import ConfigParser
from psphere.client import Client
from psphere.managedobjects import HostSystem
try:
import json
except ImportError:
import simplejson as json
def save_cache(cache_item, data, config):
''' saves item to cache '''
if config.has_option('cache', 'dir'):
dpath = os.path.expanduser(config.get('cache', 'dir'))
try:
if not os.path.exists(dpath):
os.makedirs(dpath)
if os.path.isdir(dpath):
cache = open('/'.join([dpath,cache_item]), 'w')
cache.write(json.dumps(data))
cache.close()
except IOError, e:
pass # not really sure what to do here
def get_cache(cache_item, config):
''' returns cached item '''
inv = {}
if config.has_option('cache', 'dir'):
dpath = os.path.expanduser(config.get('cache', 'dir'))
try:
cache = open('/'.join([dpath,cache_item]), 'r')
inv = json.loads(cache.read())
cache.close()
except IOError, e:
pass # not really sure what to do here
return inv
def cache_available(cache_item, config):
''' checks if we have a 'fresh' cache available for item requested '''
if config.has_option('cache', 'dir'):
dpath = os.path.expanduser(config.get('cache', 'dir'))
try:
existing = os.stat('/'.join([dpath,cache_item]))
except:
# cache doesn't exist or isn't accessible
return False
if config.has_option('cache', 'max_age'):
maxage = config.get('cache', 'max_age')
fileage = int( time.time() - existing.st_mtime )
if (maxage > fileage):
return True
return False
def get_host_info(host):
''' Get variables about a specific host '''
hostinfo = {
'vmware_name' : host.name,
}
for k in host.capability.__dict__.keys():
if k.startswith('_'):
continue
try:
hostinfo['vmware_' + k] = str(host.capability[k])
except:
continue
return hostinfo
def get_inventory(client, config):
''' Reads the inventory from cache or vmware api '''
inv = {}
if cache_available('inventory', config):
inv = get_cache('inventory',config)
elif client:
inv= { 'all': {'hosts': []}, '_meta': { 'hostvars': {} } }
default_group = os.path.basename(sys.argv[0]).rstrip('.py')
if config.has_option('defaults', 'guests_only'):
guests_only = config.get('defaults', 'guests_only')
else:
guests_only = True
if not guests_only:
if config.has_option('defaults','hw_group'):
hw_group = config.get('defaults','hw_group')
else:
hw_group = default_group + '_hw'
inv[hw_group] = []
if config.has_option('defaults','vm_group'):
vm_group = config.get('defaults','vm_group')
else:
vm_group = default_group + '_vm'
inv[vm_group] = []
# Loop through physical hosts:
hosts = HostSystem.all(client)
for host in hosts:
if not guests_only:
inv['all']['hosts'].append(host.name)
inv[hw_group].append(host.name)
inv['_meta']['hostvars'][host.name] = get_host_info(host)
save_cache(vm.name, inv['_meta']['hostvars'][host.name], config)
for vm in host.vm:
inv['all']['hosts'].append(vm.name)
inv[vm_group].append(vm.name)
inv['_meta']['hostvars'][vm.name] = get_host_info(vm)
save_cache(vm.name, inv['_meta']['hostvars'][vm.name], config)
save_cache('inventory', inv, config)
return json.dumps(inv)
def get_single_host(client, config, hostname):
inv = {}
if cache_available(hostname, config):
inv = get_cache(hostname,config)
elif client:
hosts = HostSystem.all(client) #TODO: figure out single host getter
for host in hosts:
if hostname == host.name:
inv = get_host_info(host)
break
for vm in host.vm:
if hostname == vm.name:
inv = get_host_info(vm)
break
save_cache(hostname,inv,config)
return json.dumps(inv)
if __name__ == '__main__':
inventory = {}
hostname = None
if len(sys.argv) > 1:
if sys.argv[1] == "--host":
hostname = sys.argv[2]
# Read config
config = ConfigParser.SafeConfigParser()
me = os.path.abspath(sys.argv[0]).rstrip('.py')
for configfilename in [me + '.ini', 'vmware.ini']:
if os.path.exists(configfilename):
config.read(configfilename)
break
mename = os.path.basename(me).upper()
host = os.getenv('VMWARE_' + mename + '_HOST',os.getenv('VMWARE_HOST', config.get('auth','host')))
user = os.getenv('VMWARE_' + mename + '_USER', os.getenv('VMWARE_USER', config.get('auth','user')))
password = os.getenv('VMWARE_' + mename + '_PASSWORD',os.getenv('VMWARE_PASSWORD', config.get('auth','password')))
try:
client = Client( host,user,password )
except Exception, e:
client = None
2014-04-29 16:41:05 +02:00
#print >> STDERR "Unable to login (only cache available): %s", str(e)
# Actually do the work
if hostname is None:
inventory = get_inventory(client, config)
else:
inventory = get_single_host(client, config, hostname)
# Return to ansible
print inventory