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ec2 module - registers to ansible_facts key

This commit is contained in:
Silviu Dicu 2013-01-22 15:31:51 -05:00
parent 94a1c221bc
commit 1ab9bfa7cc

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library/ec2_facts Normal file
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#!/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).
notes:
- The module can add parameters to filter ec2_facts based on it.
Some of the facts are not returned ( like mapping of the devices - but
can be add it on).
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
'''
import urllib2
import socket
socket.setdefaulttimeout(5)
class Ec2Metadata(object):
ec2_metadata_server = 'http://169.254.169.254/latest/meta-data/'
ec2_sshdata_server = 'http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key'
ec2_userdata_server = 'http://169.254.169.254/latest/user-data/'
def __init__(self, ec2_metadata_server=None, ec2_sshdata_server=None, ec2_userdata_server=None):
self.url_meta = ec2_metadata_server or self.ec2_metadata_server
self.url_user = ec2_userdata_server or self.ec2_userdata_server
self.url_ssh = ec2_sshdata_server or self.ec2_sshdata_server
def _fetch(self, url):
try:
return urllib2.urlopen(url).read()
except urllib2.HTTPError:
return
except urllib2.URLError:
return
def run(self, field=None):
data = {}
raw_fields = self._fetch(self.url_meta)
if not raw_fields:
return data
fields = raw_fields.split('\n')
for field in fields:
if field.endswith('/'): continue # deal with this later
field_data = self._fetch(self.url_meta + field)
if field == 'security-groups':
sg_fields = ",".join(field_data.split('\n'))
data['ansible_ec2_%s' % field] = sg_fields
else:
data['ansible_ec2_%s' % field] = field_data
data['ansible_ec2_%s' % 'user-data'] = self._fetch(self.url_user)
data['ensible_ec2_%s' % 'public-keys'] = self._fetch(self.url_ssh)
return data
def main():
ec2_facts = Ec2Metadata().run()
ec2_facts_result = {
"changed" : True,
"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()