222 lines
7.9 KiB
Python
Executable file
222 lines
7.9 KiB
Python
Executable file
#!/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()
|
|
|
|
# Data to print
|
|
if 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 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('--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()
|