mirror of https://github.com/ansible/ansible.git
Merge pull request #1891 from silviud/ec2_facts_module
ec2 facts module - registers to ansible_facts keypull/1892/merge
commit
e0b5c35033
@ -0,0 +1,125 @@
|
||||
#!/usr/bin/python -tt
|
||||
# -*- coding: utf-8 -*-
|
||||
|
||||
# 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/>.
|
||||
|
||||
|
||||
DOCUMENTATION = '''
|
||||
---
|
||||
module: ec2_facts
|
||||
short_description: Gathers facts about remote hosts within ec2 (aws)
|
||||
options: {}
|
||||
description:
|
||||
- This module fetches data from the metadata servers in ec2 (aws).
|
||||
Eucalyptus cloud provides a similar service and this module should
|
||||
work this cloud provider as well.
|
||||
notes:
|
||||
- Parameters to filter on ec2_facts may be added later.
|
||||
examples:
|
||||
- code: ansible all -m ec2_facts --tree /tmp/facts
|
||||
description: Obtain facts from ec2 metatdata servers. You will need to
|
||||
run an instance within ec2.
|
||||
|
||||
author: Silviu Dicu: silviudicu@gmail.com
|
||||
'''
|
||||
|
||||
import urllib2
|
||||
import socket
|
||||
import re
|
||||
|
||||
socket.setdefaulttimeout(5)
|
||||
|
||||
class Ec2Metadata(object):
|
||||
|
||||
ec2_metadata_uri = 'http://169.254.169.254/latest/meta-data/'
|
||||
ec2_sshdata_uri = 'http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key'
|
||||
ec2_userdata_uri = 'http://169.254.169.254/latest/user-data/'
|
||||
|
||||
def __init__(self, ec2_metadata_uri=None, ec2_sshdata_uri=None, ec2_userdata_uri=None):
|
||||
self.uri_meta = ec2_metadata_uri or self.ec2_metadata_uri
|
||||
self.uri_user = ec2_userdata_uri or self.ec2_userdata_uri
|
||||
self.uri_ssh = ec2_sshdata_uri or self.ec2_sshdata_uri
|
||||
self._data = {}
|
||||
self._prefix = 'ansible_ec2_%s'
|
||||
|
||||
def _fetch(self, url):
|
||||
try:
|
||||
return urllib2.urlopen(url).read()
|
||||
except urllib2.HTTPError:
|
||||
return
|
||||
except urllib2.URLError:
|
||||
return
|
||||
|
||||
def _mangle_fields(self, fields, uri, filter_patterns=['public-keys-0']):
|
||||
new_fields = {}
|
||||
for key, value in fields.iteritems():
|
||||
split_fields = key[len(uri):].split('/')
|
||||
if len(split_fields) > 1 and split_fields[1]:
|
||||
new_key = "-".join(split_fields)
|
||||
new_fields[self._prefix % new_key] = value
|
||||
else:
|
||||
new_key = "".join(split_fields)
|
||||
new_fields[self._prefix % new_key] = value
|
||||
for pattern in filter_patterns:
|
||||
for key in new_fields.keys():
|
||||
match = re.search(pattern, key)
|
||||
if match: new_fields.pop(key)
|
||||
return new_fields
|
||||
|
||||
def fetch(self, uri, recurse=True):
|
||||
raw_subfields = self._fetch(uri)
|
||||
if not raw_subfields:
|
||||
return
|
||||
subfields = raw_subfields.split('\n')
|
||||
for field in subfields:
|
||||
if field.endswith('/') and recurse:
|
||||
self.fetch(uri + field)
|
||||
if uri.endswith('/'):
|
||||
new_uri = uri + field
|
||||
else:
|
||||
new_uri = uri + '/' + field
|
||||
if new_uri not in self._data and not new_uri.endswith('/'):
|
||||
content = self._fetch(new_uri)
|
||||
if field == 'security-groups':
|
||||
sg_fields = ",".join(content.split('\n'))
|
||||
self._data['%s' % (new_uri)] = sg_fields
|
||||
else:
|
||||
self._data['%s' % (new_uri)] = content
|
||||
|
||||
def run(self):
|
||||
self.fetch(self.uri_meta) # populate _data
|
||||
data = self._mangle_fields(self._data,
|
||||
self.uri_meta)
|
||||
data[self._prefix % 'user-data'] = self._fetch(self.uri_user)
|
||||
data[self._prefix % 'public-key'] = self._fetch(self.uri_ssh)
|
||||
return data
|
||||
|
||||
|
||||
def main():
|
||||
ec2_facts = Ec2Metadata().run()
|
||||
ec2_facts_result = {
|
||||
"changed" : False,
|
||||
"ansible_facts" : ec2_facts
|
||||
}
|
||||
module = AnsibleModule(
|
||||
argument_spec = dict()
|
||||
)
|
||||
module.exit_json(**ec2_facts_result)
|
||||
|
||||
# this is magic, see lib/ansible/module_common.py
|
||||
#<<INCLUDE_ANSIBLE_MODULE_COMMON>>
|
||||
|
||||
main()
|
Loading…
Reference in New Issue