From 901f0ee491efb34f9788e11dd6d572928146da91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9na=C3=AFc=20Huard?= <lhuard@amadeus.com>
Date: Mon, 20 Apr 2015 14:11:48 +0200
Subject: Implement OpenStack provider
---
inventory/openstack/hosts/hosts | 1 +
inventory/openstack/hosts/nova.ini | 45 ++++++++
inventory/openstack/hosts/nova.py | 224 +++++++++++++++++++++++++++++++++++++
3 files changed, 270 insertions(+)
create mode 100644 inventory/openstack/hosts/hosts
create mode 100644 inventory/openstack/hosts/nova.ini
create mode 100755 inventory/openstack/hosts/nova.py
(limited to 'inventory/openstack')
diff --git a/inventory/openstack/hosts/hosts b/inventory/openstack/hosts/hosts
new file mode 100644
index 000000000..9cdc31449
--- /dev/null
+++ b/inventory/openstack/hosts/hosts
@@ -0,0 +1 @@
+localhost ansible_sudo=no ansible_python_interpreter=/usr/bin/python2 connection=local
diff --git a/inventory/openstack/hosts/nova.ini b/inventory/openstack/hosts/nova.ini
new file mode 100644
index 000000000..4900c4965
--- /dev/null
+++ b/inventory/openstack/hosts/nova.ini
@@ -0,0 +1,45 @@
+# Ansible OpenStack external inventory script
+
+[openstack]
+
+#-------------------------------------------------------------------------
+# Required settings
+#-------------------------------------------------------------------------
+
+# API version
+version = 2
+
+# OpenStack nova username
+username =
+
+# OpenStack nova api_key or password
+api_key =
+
+# OpenStack nova auth_url
+auth_url =
+
+# OpenStack nova project_id or tenant name
+project_id =
+
+#-------------------------------------------------------------------------
+# Optional settings
+#-------------------------------------------------------------------------
+
+# Authentication system
+# auth_system = keystone
+
+# Serverarm region name to use
+# region_name =
+
+# Specify a preference for public or private IPs (public is default)
+# prefer_private = False
+
+# What service type (required for newer nova client)
+# service_type = compute
+
+
+# TODO: Some other options
+# insecure =
+# endpoint_type =
+# extensions =
+# service_name =
diff --git a/inventory/openstack/hosts/nova.py b/inventory/openstack/hosts/nova.py
new file mode 100755
index 000000000..d5bd8d1ee
--- /dev/null
+++ b/inventory/openstack/hosts/nova.py
@@ -0,0 +1,224 @@
+#!/usr/bin/env python2
+
+# pylint: skip-file
+
+# (c) 2012, Marco Vito Moscaritolo <marco@agavee.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 sys
+import re
+import os
+import ConfigParser
+from novaclient import client as nova_client
+
+try:
+ import json
+except ImportError:
+ import simplejson as json
+
+###################################################
+# executed with no parameters, return the list of
+# all groups and hosts
+
+NOVA_CONFIG_FILES = [os.getcwd() + "/nova.ini",
+ os.path.expanduser(os.environ.get('ANSIBLE_CONFIG', "~/nova.ini")),
+ "/etc/ansible/nova.ini"]
+
+NOVA_DEFAULTS = {
+ 'auth_system': None,
+ 'region_name': None,
+ 'service_type': 'compute',
+}
+
+
+def nova_load_config_file():
+ p = ConfigParser.SafeConfigParser(NOVA_DEFAULTS)
+
+ for path in NOVA_CONFIG_FILES:
+ if os.path.exists(path):
+ p.read(path)
+ return p
+
+ return None
+
+
+def get_fallback(config, value, section="openstack"):
+ """
+ Get value from config object and return the value
+ or false
+ """
+ try:
+ return config.get(section, value)
+ except ConfigParser.NoOptionError:
+ return False
+
+
+def push(data, key, element):
+ """
+ Assist in items to a dictionary of lists
+ """
+ if (not element) or (not key):
+ return
+
+ if key in data:
+ data[key].append(element)
+ else:
+ data[key] = [element]
+
+
+def to_safe(word):
+ '''
+ Converts 'bad' characters in a string to underscores so they can
+ be used as Ansible groups
+ '''
+ return re.sub(r"[^A-Za-z0-9\-]", "_", word)
+
+
+def get_ips(server, access_ip=True):
+ """
+ Returns a list of the server's IPs, or the preferred
+ access IP
+ """
+ private = []
+ public = []
+ address_list = []
+ # Iterate through each servers network(s), get addresses and get type
+ addresses = getattr(server, 'addresses', {})
+ if len(addresses) > 0:
+ for network in addresses.itervalues():
+ for address in network:
+ if address.get('OS-EXT-IPS:type', False) == 'fixed':
+ private.append(address['addr'])
+ elif address.get('OS-EXT-IPS:type', False) == 'floating':
+ public.append(address['addr'])
+
+ if not access_ip:
+ address_list.append(server.accessIPv4)
+ address_list.extend(private)
+ address_list.extend(public)
+ return address_list
+
+ access_ip = None
+ # Append group to list
+ if server.accessIPv4:
+ access_ip = server.accessIPv4
+ if (not access_ip) and public and not (private and prefer_private):
+ access_ip = public[0]
+ if private and not access_ip:
+ access_ip = private[0]
+
+ return access_ip
+
+
+def get_metadata(server):
+ """Returns dictionary of all host metadata"""
+ get_ips(server, False)
+ results = {}
+ for key in vars(server):
+ # Extract value
+ value = getattr(server, key)
+
+ # Generate sanitized key
+ key = 'os_' + re.sub(r"[^A-Za-z0-9\-]", "_", key).lower()
+
+ # Att value to instance result (exclude manager class)
+ #TODO: maybe use value.__class__ or similar inside of key_name
+ if key != 'os_manager':
+ results[key] = value
+ return results
+
+config = nova_load_config_file()
+if not config:
+ sys.exit('Unable to find configfile in %s' % ', '.join(NOVA_CONFIG_FILES))
+
+# Load up connections info based on config and then environment
+# variables
+username = (get_fallback(config, 'username') or
+ os.environ.get('OS_USERNAME', None))
+api_key = (get_fallback(config, 'api_key') or
+ os.environ.get('OS_PASSWORD', None))
+auth_url = (get_fallback(config, 'auth_url') or
+ os.environ.get('OS_AUTH_URL', None))
+project_id = (get_fallback(config, 'project_id') or
+ os.environ.get('OS_TENANT_NAME', None))
+region_name = (get_fallback(config, 'region_name') or
+ os.environ.get('OS_REGION_NAME', None))
+auth_system = (get_fallback(config, 'auth_system') or
+ os.environ.get('OS_AUTH_SYSTEM', None))
+
+# Determine what type of IP is preferred to return
+prefer_private = False
+try:
+ prefer_private = config.getboolean('openstack', 'prefer_private')
+except ConfigParser.NoOptionError:
+ pass
+
+client = nova_client.Client(
+ version=config.get('openstack', 'version'),
+ username=username,
+ api_key=api_key,
+ auth_url=auth_url,
+ region_name=region_name,
+ project_id=project_id,
+ auth_system=auth_system,
+ service_type=config.get('openstack', 'service_type'),
+)
+
+# Default or added list option
+if (len(sys.argv) == 2 and sys.argv[1] == '--list') or len(sys.argv) == 1:
+ groups = {'_meta': {'hostvars': {}}}
+ # Cycle on servers
+ for server in client.servers.list():
+ access_ip = get_ips(server)
+
+ # Push to name group of 1
+ push(groups, server.name, access_ip)
+
+ # Run through each metadata item and add instance to it
+ for key, value in server.metadata.iteritems():
+ composed_key = to_safe('tag_{0}_{1}'.format(key, value))
+ push(groups, composed_key, access_ip)
+
+ # Do special handling of group for backwards compat
+ # inventory groups
+ group = server.metadata['group'] if 'group' in server.metadata else 'undefined'
+ push(groups, group, access_ip)
+
+ # Add vars to _meta key for performance optimization in
+ # Ansible 1.3+
+ groups['_meta']['hostvars'][access_ip] = get_metadata(server)
+
+ # Return server list
+ print(json.dumps(groups, sort_keys=True, indent=2))
+ sys.exit(0)
+
+#####################################################
+# executed with a hostname as a parameter, return the
+# variables for that host
+
+elif len(sys.argv) == 3 and (sys.argv[1] == '--host'):
+ results = {}
+ ips = []
+ for server in client.servers.list():
+ if sys.argv[2] in (get_ips(server) or []):
+ results = get_metadata(server)
+ print(json.dumps(results, sort_keys=True, indent=2))
+ sys.exit(0)
+
+else:
+ print "usage: --list ..OR.. --host <hostname>"
+ sys.exit(1)
--
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