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ansible/contrib/inventory/abiquo.py
Dag Wieers 1ca4add91c Performance improvement using in-operator on dicts 
Just a small cleanup for the existing occurrences.

Using the in-operator for hash lookups is faster than using .keys()
http://stackoverflow.com/questions/29314269/why-do-key-in-dict-and-key-in-dict-keys-have-the-same-output
2016-11-17 12:33:04 -05:00

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
'''
External inventory script for Abiquo
====================================
Shamelessly copied from an existing inventory script.
This script generates an inventory that Ansible can understand by making API requests to Abiquo API
Requires some python libraries, ensure to have them installed when using this script.
This script has been tested in Abiquo 3.0 but it may work also for Abiquo 2.6.
Before using this script you may want to modify abiquo.ini config file.
This script generates an Ansible hosts file with these host groups:
ABQ_xxx: Defines a hosts itself by Abiquo VM name label
all: Contains all hosts defined in Abiquo user's enterprise
virtualdatecenter: Creates a host group for each virtualdatacenter containing all hosts defined on it
virtualappliance: Creates a host group for each virtualappliance containing all hosts defined on it
imagetemplate: Creates a host group for each image template containing all hosts using it
'''
# (c) 2014, Daniel Beneyto <daniel.beneyto@abiquo.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/>.
import os
import sys
import time
import ConfigParser
try:
import json
except ImportError:
import simplejson as json
from ansible.module_utils.urls import open_url
def api_get(link, config):
try:
if link == None:
url = config.get('api','uri') + config.get('api','login_path')
headers = {"Accept": config.get('api','login_type')}
else:
url = link['href'] + '?limit=0'
headers = {"Accept": link['type']}
result = open_url(url, headers=headers, url_username=config.get('auth','apiuser').replace('\n', ''),
url_password=config.get('auth','apipass').replace('\n', ''))
return json.loads(result.read())
except:
return None
def save_cache(data, config):
''' saves item to cache '''
dpath = config.get('cache','cache_dir')
try:
cache = open('/'.join([dpath,'inventory']), 'w')
cache.write(json.dumps(data))
cache.close()
except IOError as e:
pass # not really sure what to do here
def get_cache(cache_item, config):
''' returns cached item '''
dpath = config.get('cache','cache_dir')
inv = {}
try:
cache = open('/'.join([dpath,'inventory']), 'r')
inv = cache.read()
cache.close()
except IOError as e:
pass # not really sure what to do here
return inv
def cache_available(config):
''' checks if we have a 'fresh' cache available for item requested '''
if config.has_option('cache','cache_dir'):
dpath = config.get('cache','cache_dir')
try:
existing = os.stat( '/'.join([dpath,'inventory']))
except:
# cache doesn't exist or isn't accessible
return False
if config.has_option('cache', 'cache_max_age'):
maxage = config.get('cache', 'cache_max_age')
if ((int(time.time()) - int(existing.st_mtime)) <= int(maxage)):
return True
return False
def generate_inv_from_api(enterprise_entity,config):
try:
inventory['all'] = {}
inventory['all']['children'] = []
inventory['all']['hosts'] = []
inventory['_meta'] = {}
inventory['_meta']['hostvars'] = {}
enterprise = api_get(enterprise_entity,config)
vms_entity = next(link for link in (enterprise['links']) if (link['rel']=='virtualmachines'))
vms = api_get(vms_entity,config)
for vmcollection in vms['collection']:
vm_vapp = next(link for link in (vmcollection['links']) if (link['rel']=='virtualappliance'))['title'].replace('[','').replace(']','').replace(' ','_')
vm_vdc = next(link for link in (vmcollection['links']) if (link['rel']=='virtualdatacenter'))['title'].replace('[','').replace(']','').replace(' ','_')
vm_template = next(link for link in (vmcollection['links']) if (link['rel']=='virtualmachinetemplate'))['title'].replace('[','').replace(']','').replace(' ','_')
# From abiquo.ini: Only adding to inventory VMs with public IP
if (config.getboolean('defaults', 'public_ip_only')) == True:
for link in vmcollection['links']:
if (link['type']=='application/vnd.abiquo.publicip+json' and link['rel']=='ip'):
vm_nic = link['title']
break
else:
vm_nic = None
# Otherwise, assigning defined network interface IP address
else:
for link in vmcollection['links']:
if (link['rel']==config.get('defaults', 'default_net_interface')):
vm_nic = link['title']
break
else:
vm_nic = None
vm_state = True
# From abiquo.ini: Only adding to inventory VMs deployed
if ((config.getboolean('defaults', 'deployed_only') == True) and (vmcollection['state'] == 'NOT_ALLOCATED')):
vm_state = False
if not vm_nic == None and vm_state:
if vm_vapp not in inventory:
inventory[vm_vapp] = {}
inventory[vm_vapp]['children'] = []
inventory[vm_vapp]['hosts'] = []
if vm_vdc not in inventory:
inventory[vm_vdc] = {}
inventory[vm_vdc]['hosts'] = []
inventory[vm_vdc]['children'] = []
if vm_template not in inventory:
inventory[vm_template] = {}
inventory[vm_template]['children'] = []
inventory[vm_template]['hosts'] = []
if config.getboolean('defaults', 'get_metadata') == True:
meta_entity = next(link for link in (vmcollection['links']) if (link['rel']=='metadata'))
try:
metadata = api_get(meta_entity,config)
if (config.getfloat("api","version") >= 3.0):
vm_metadata = metadata['metadata']
else:
vm_metadata = metadata['metadata']['metadata']
inventory['_meta']['hostvars'][vm_nic] = vm_metadata
except Exception as e:
pass
inventory[vm_vapp]['children'].append(vmcollection['name'])
inventory[vm_vdc]['children'].append(vmcollection['name'])
inventory[vm_template]['children'].append(vmcollection['name'])
inventory['all']['children'].append(vmcollection['name'])
inventory[vmcollection['name']] = []
inventory[vmcollection['name']].append(vm_nic)
return inventory
except Exception as e:
# Return empty hosts output
return { 'all': {'hosts': []}, '_meta': { 'hostvars': {} } }
def get_inventory(enterprise, config):
''' Reads the inventory from cache or Abiquo api '''
if cache_available(config):
inv = get_cache('inventory', config)
else:
default_group = os.path.basename(sys.argv[0]).rstrip('.py')
# MAKE ABIQUO API CALLS #
inv = generate_inv_from_api(enterprise,config)
save_cache(inv, config)
return json.dumps(inv)
if __name__ == '__main__':
inventory = {}
enterprise = {}
# Read config
config = ConfigParser.SafeConfigParser()
for configfilename in [os.path.abspath(sys.argv[0]).rstrip('.py') + '.ini', 'abiquo.ini']:
if os.path.exists(configfilename):
config.read(configfilename)
break
try:
login = api_get(None,config)
enterprise = next(link for link in (login['links']) if (link['rel']=='enterprise'))
except Exception as e:
enterprise = None
if cache_available(config):
inventory = get_cache('inventory', config)
else:
inventory = get_inventory(enterprise, config)
# return to ansible
sys.stdout.write(str(inventory))
sys.stdout.flush()
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