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ansible/contrib/inventory/windows_azure.py
Brian Coca d0c6d2ff1c poreted log_plays, syslog_json and osx_say callbacks to v2 
renamed plugins to contrib (they are not really plugins)
rewrote README.md to reflect new usage
added new dir to setup.py so it gets copied with installation, in views
of making using inventory scripts easier in teh future
2015-07-10 10:30:33 -04:00

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#!/usr/bin/env python
'''
Windows Azure external inventory script
=======================================
Generates inventory that Ansible can understand by making API request to
Windows Azure using the azure python library.
NOTE: This script assumes Ansible is being executed where azure is already
installed.
pip install azure
Adapted from the ansible Linode plugin by Dan Slimmon.
'''
# (c) 2013, John Whitbeck
#
# 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/>.
######################################################################
# Standard imports
import re
import sys
import argparse
import os
from urlparse import urlparse
from time import time
try:
import json
except ImportError:
import simplejson as json
try:
import azure
from azure import WindowsAzureError
from azure.servicemanagement import ServiceManagementService
except ImportError as e:
print "failed=True msg='`azure` library required for this script'"
sys.exit(1)
# Imports for ansible
import ConfigParser
class AzureInventory(object):
def __init__(self):
"""Main execution path."""
# Inventory grouped by display group
self.inventory = {}
# Index of deployment name -> host
self.index = {}
# Read settings and parse CLI arguments
self.read_settings()
self.read_environment()
self.parse_cli_args()
# Initialize Azure ServiceManagementService
self.sms = ServiceManagementService(self.subscription_id, self.cert_path)
# Cache
if self.args.refresh_cache:
self.do_api_calls_update_cache()
elif not self.is_cache_valid():
self.do_api_calls_update_cache()
if self.args.list_images:
data_to_print = self.json_format_dict(self.get_images(), True)
elif self.args.list:
# Display list of nodes for inventory
if len(self.inventory) == 0:
data_to_print = self.get_inventory_from_cache()
else:
data_to_print = self.json_format_dict(self.inventory, True)
print data_to_print
def get_images(self):
images = []
for image in self.sms.list_os_images():
if str(image.label).lower().find(self.args.list_images.lower()) >= 0:
images.append(vars(image))
return json.loads(json.dumps(images, default=lambda o: o.__dict__))
def is_cache_valid(self):
"""Determines if the cache file has expired, or if it is still valid."""
if os.path.isfile(self.cache_path_cache):
mod_time = os.path.getmtime(self.cache_path_cache)
current_time = time()
if (mod_time + self.cache_max_age) > current_time:
if os.path.isfile(self.cache_path_index):
return True
return False
def read_settings(self):
"""Reads the settings from the .ini file."""
config = ConfigParser.SafeConfigParser()
config.read(os.path.dirname(os.path.realpath(__file__)) + '/windows_azure.ini')
# Credentials related
if config.has_option('azure', 'subscription_id'):
self.subscription_id = config.get('azure', 'subscription_id')
if config.has_option('azure', 'cert_path'):
self.cert_path = config.get('azure', 'cert_path')
# Cache related
if config.has_option('azure', 'cache_path'):
cache_path = config.get('azure', 'cache_path')
self.cache_path_cache = cache_path + "/ansible-azure.cache"
self.cache_path_index = cache_path + "/ansible-azure.index"
if config.has_option('azure', 'cache_max_age'):
self.cache_max_age = config.getint('azure', 'cache_max_age')
def read_environment(self):
''' Reads the settings from environment variables '''
# Credentials
if os.getenv("AZURE_SUBSCRIPTION_ID"): self.subscription_id = os.getenv("AZURE_SUBSCRIPTION_ID")
if os.getenv("AZURE_CERT_PATH"): self.cert_path = os.getenv("AZURE_CERT_PATH")
def parse_cli_args(self):
"""Command line argument processing"""
parser = argparse.ArgumentParser(description='Produce an Ansible Inventory file based on Azure')
parser.add_argument('--list', action='store_true', default=True,
help='List nodes (default: True)')
parser.add_argument('--list-images', action='store',
help='Get all available images.')
parser.add_argument('--refresh-cache', action='store_true', default=False,
help='Force refresh of cache by making API requests to Azure (default: False - use cache files)')
self.args = parser.parse_args()
def do_api_calls_update_cache(self):
"""Do API calls, and save data in cache files."""
self.add_cloud_services()
self.write_to_cache(self.inventory, self.cache_path_cache)
self.write_to_cache(self.index, self.cache_path_index)
def add_cloud_services(self):
"""Makes an Azure API call to get the list of cloud services."""
try:
for cloud_service in self.sms.list_hosted_services():
self.add_deployments(cloud_service)
except WindowsAzureError as e:
print "Looks like Azure's API is down:"
print
print e
sys.exit(1)
def add_deployments(self, cloud_service):
"""Makes an Azure API call to get the list of virtual machines associated with a cloud service"""
try:
for deployment in self.sms.get_hosted_service_properties(cloud_service.service_name,embed_detail=True).deployments.deployments:
if deployment.deployment_slot == "Production":
self.add_deployment(cloud_service, deployment)
except WindowsAzureError as e:
print "Looks like Azure's API is down:"
print
print e
sys.exit(1)
def add_deployment(self, cloud_service, deployment):
"""Adds a deployment to the inventory and index"""
dest = urlparse(deployment.url).hostname
# Add to index
self.index[dest] = deployment.name
# List of all azure deployments
self.push(self.inventory, "azure", dest)
# Inventory: Group by service name
self.push(self.inventory, self.to_safe(cloud_service.service_name), dest)
# Inventory: Group by region
self.push(self.inventory, self.to_safe(cloud_service.hosted_service_properties.location), dest)
def push(self, my_dict, key, element):
"""Pushed an element onto an array that may not have been defined in the dict."""
if key in my_dict:
my_dict[key].append(element);
else:
my_dict[key] = [element]
def get_inventory_from_cache(self):
"""Reads the inventory from the cache file and returns it as a JSON object."""
cache = open(self.cache_path_cache, 'r')
json_inventory = cache.read()
return json_inventory
def load_index_from_cache(self):
"""Reads the index from the cache file and sets self.index."""
cache = open(self.cache_path_index, 'r')
json_index = cache.read()
self.index = json.loads(json_index)
def write_to_cache(self, data, filename):
"""Writes data in JSON format to a file."""
json_data = self.json_format_dict(data, True)
cache = open(filename, 'w')
cache.write(json_data)
cache.close()
def to_safe(self, word):
"""Escapes any characters that would be invalid in an ansible group name."""
return re.sub("[^A-Za-z0-9\-]", "_", word)
def json_format_dict(self, data, pretty=False):
"""Converts a dict to a JSON object and dumps it as a formatted string."""
if pretty:
return json.dumps(data, sort_keys=True, indent=2)
else:
return json.dumps(data)
AzureInventory()
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