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#!/usr/bin/python
###############################################################
# Copyright (c) 2017 ZTE Corporation and others
# taseer94@gmail.com
#
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
import json
from collections import defaultdict
from ansible.module_utils.basic import AnsibleModule
ANSIBLE_METADATA = {'metadata_version': '1.0',
'status': ['preview'],
'supported_by': 'community'}
DOCUMENTATION = '''
---
module: mcp
short_description: collecting facts from mcp environments
description:
- Use this module to create a dynamic inventory from salt master (mcp).
version_added: "1.0"
author: "Taseer Ahmed (@Taseer)"
options:
notes:
requirements:
- Host 'salt-master' is in ~/.ssh/config
'''
RETURN = '''
ansible_facts:
description: facts collected for ansible
returned: success
type: dictionary
contains:
hosts:
description: host grouped by hostname, cluster, role and manufacture
type: dict
hosts_meta:
description: hosts meta data indexed by hostname
type: dict
'''
EXAMPLES = '''
---
- hosts: salt-master
tasks:
- name: collect facts of mcp hosts
mcp:
- debug: var=hostvars
- name: add compute node to ansible inventory
add_host:
name: "{{ hosts_meta[item]['ip'] }}"
groups: mcp-compute
ansible_user: root
ansible_ssh_common_args: '-o StrictHostKeyChecking=No -o ProxyJump=salt-master'
with_items: "{{ hosts.compute }}"
- hosts: mcp-compute
tasks:
- name: check ssh connection
ping:
'''
def generate_inventory(nodes):
"""Generate ansible inventory from node list in json format"""
hosts = defaultdict(list)
hosts_meta = {}
for key, value in nodes.iteritems():
hosts_meta[value['host']] = {
'ansible_ssh_host': value['fqdn_ip4'][0],
'ansible_user': 'ubuntu'
}
hosts['compute'].append(value['host'])
return {'hosts': hosts, 'hosts_meta': hosts_meta, 'proxy_jump': False}
def main():
module = AnsibleModule(argument_spec=dict())
cmd = [module.get_bin_path('salt', True), '-C', '-t 5', '--static', '--out=json', 'cmp*', 'grains.item',
'fqdn_ip4', 'host']
(rc, out, err) = module.run_command(cmd)
if rc is not None and rc != 0:
return module.fail_json(msg=err)
nodes = json.loads(out)
module.exit_json(changed=False, ansible_facts=generate_inventory(nodes))
if __name__ == '__main__':
main()
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