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#!/usr/bin/env python
# Copyright (c) 2016, Hugh Ma <hugh.ma@flextronics.com>
#
# This module 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.
#
# This software 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 this software. If not, see <http://www.gnu.org/licenses/>.
# Stacki inventory script
# Configure stacki.yml with proper auth information and place in the following:
# - ../inventory/stacki.yml
# - /etc/stacki/stacki.yml
# - /etc/ansible/stacki.yml
# The stacki.yml file can contain entries for authentication information
# regarding the Stacki front-end node.
#
# use_hostnames uses hostname rather than interface ip as connection
#
#
"""
Example Usage:
List Stacki Nodes
$ ./stack.py --list
Example Configuration:
---
stacki:
auth:
stacki_user: admin
stacki_password: abc12345678910
stacki_endpoint: http://192.168.200.50/stack
use_hostnames: false
"""
import argparse
import os
import sys
import yaml
from distutils.version import StrictVersion
try:
import json
except:
import simplejson as json
try:
import requests
except:
sys.exit('requests package is required for this inventory script')
CONFIG_FILES = ['/etc/stacki/stacki.yml', '/etc/ansible/stacki.yml']
def stack_auth(params):
endpoint = params['stacki_endpoint']
auth_creds = {'USERNAME': params['stacki_user'],
'PASSWORD': params['stacki_password']}
client = requests.session()
client.get(endpoint)
init_csrf = client.cookies['csrftoken']
header = {'csrftoken': init_csrf, 'X-CSRFToken': init_csrf,
'Content-type': 'application/x-www-form-urlencoded'}
login_endpoint = endpoint + "/login"
login_req = client.post(login_endpoint, data=auth_creds, headers=header)
csrftoken = login_req.cookies['csrftoken']
sessionid = login_req.cookies['sessionid']
auth_creds.update(CSRFTOKEN=csrftoken, SESSIONID=sessionid)
return client, auth_creds
def stack_build_header(auth_creds):
header = {'csrftoken': auth_creds['CSRFTOKEN'],
'X-CSRFToken': auth_creds['CSRFTOKEN'],
'sessionid': auth_creds['SESSIONID'],
'Content-type': 'application/json'}
return header
def stack_host_list(endpoint, header, client):
stack_r = client.post(endpoint, data=json.dumps({"cmd": "list host"}),
headers=header)
return json.loads(stack_r.json())
def stack_net_list(endpoint, header, client):
stack_r = client.post(endpoint, data=json.dumps({"cmd": "list host interface"}),
headers=header)
return json.loads(stack_r.json())
def format_meta(hostdata, intfdata, config):
use_hostnames = config['use_hostnames']
meta = dict(all=dict(hosts=list()),
frontends=dict(hosts=list()),
backends=dict(hosts=list()),
_meta=dict(hostvars=dict()))
# Iterate through list of dicts of hosts and remove
# environment key as it causes conflicts
for host in hostdata:
del host['environment']
meta['_meta']['hostvars'][host['host']] = host
meta['_meta']['hostvars'][host['host']]['interfaces'] = list()
# @bbyhuy to improve readability in next iteration
for intf in intfdata:
if intf['host'] in meta['_meta']['hostvars']:
meta['_meta']['hostvars'][intf['host']]['interfaces'].append(intf)
if intf['default'] is True:
meta['_meta']['hostvars'][intf['host']]['ansible_host'] = intf['ip']
if not use_hostnames:
meta['all']['hosts'].append(intf['ip'])
if meta['_meta']['hostvars'][intf['host']]['appliance'] != 'frontend':
meta['backends']['hosts'].append(intf['ip'])
else:
meta['frontends']['hosts'].append(intf['ip'])
else:
meta['all']['hosts'].append(intf['host'])
if meta['_meta']['hostvars'][intf['host']]['appliance'] != 'frontend':
meta['backends']['hosts'].append(intf['host'])
else:
meta['frontends']['hosts'].append(intf['host'])
return meta
def parse_args():
parser = argparse.ArgumentParser(description='Stacki Inventory Module')
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--list', action='store_true',
help='List active hosts')
group.add_argument('--host', help='List details about the specific host')
return parser.parse_args()
def main():
args = parse_args()
if StrictVersion(requests.__version__) < StrictVersion("2.4.3"):
sys.exit('requests>=2.4.3 is required for this inventory script')
try:
config_files = CONFIG_FILES
config_files.append(os.path.dirname(os.path.realpath(__file__)) + '/stacki.yml')
config = None
for cfg_file in config_files:
if os.path.isfile(cfg_file):
stream = open(cfg_file, 'r')
config = yaml.safe_load(stream)
break
if not config:
sys.stderr.write("No config file found at {0}\n".format(config_files))
sys.exit(1)
client, auth_creds = stack_auth(config['stacki']['auth'])
header = stack_build_header(auth_creds)
host_list = stack_host_list(config['stacki']['auth']['stacki_endpoint'], header, client)
intf_list = stack_net_list(config['stacki']['auth']['stacki_endpoint'], header, client)
final_meta = format_meta(host_list, intf_list, config)
print(json.dumps(final_meta, indent=4))
except Exception as e:
sys.stderr.write('%s\n' % e.message)
sys.exit(1)
sys.exit(0)
if __name__ == '__main__':
main()
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