mirror of
https://github.com/DO1JLR/ansible_linux_desktop_setup.git
synced 2024-09-14 19:54:51 +02:00
90 lines
2.5 KiB
Python
Executable file
90 lines
2.5 KiB
Python
Executable file
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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"""
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Create a dynamic inventory for this ansible playbook
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"""
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import socket
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import sys
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import json
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INIT_HOST=False
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# create a dict to match hostnames to enviroments
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env_dict = {
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'work':
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['macbook.local'],
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'private':
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['derpy.local', 'applejack.local', 'rarity.local', 'discord.local']
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}
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def fqdn():
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"""
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return fully qualified domain name
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"""
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hostname = socket.gethostname()
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if '.' not in hostname:
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hostname = f"{hostname}.local"
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return str(hostname)
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def become_pass(host, group):
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"""
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return variable for become password using gopass lookup
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"""
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if group == 'work':
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gopasslookupprefix = 'private/ansible/hosts/'
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else:
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gopasslookupprefix = 'ansible/hosts/'
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passstring = str("\"ansible_become_pass\": \"{{ lookup('community.general.passwordstore', '"
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+ gopasslookupprefix + host + "/users/root') }}\"")
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return passstring
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def env(domain):
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"""
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map a hostname to a space
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or print empty list if no one matched and exit
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"""
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for key, values in env_dict.items():
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if domain in values:
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return key
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if INIT_HOST:
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return str('init')
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print(json.dumps(empty_host_list(domain), sort_keys=True, indent=2))
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sys.exit()
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def empty_host_list(domain):
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"""
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return empty host list
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"""
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comment = f"No valid host found. Found '{domain}'. Return empty host list!"
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return json.loads('{"_meta": {"comment": "' + comment +
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'", "hostvars": {}}, "instances": {"hosts": []}}')
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def hostvars(host, group):
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"""
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set variables to local connection
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"""
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local = str('"' + host + '": {"ansible_connection": "local"')
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if not INIT_HOST:
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local += str(', ' + str(become_pass(host, group)))
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local += str('}')
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return local
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def formated_host_group_list(host, group):
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"""
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build inventory and return it
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"""
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# pylint: disable=line-too-long
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return json.loads('{"_meta": {"hostvars": {' + str(hostvars(host, group)) + '}},"' + str(group) + '": {"hosts": ["' + str(host) + '"]},"instances": {"children": ["' + str(group) + '"]}}')
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def main():
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"""
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main funktion
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will analyse on which host this script is started
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and will print the dynamic inventory to tell ansible
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which host_vars and group_vars should be used
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"""
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host = fqdn()
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group = env(host)
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print(json.dumps(formated_host_group_list(host, group), sort_keys=True, indent=2))
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main()
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