github.io/assets/apprentice/ansible/inv.py

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#!/usr/bin/python3
from json import dumps
inv = {
'prod_frontend': {
'hosts': ['toten', 'hamar']
}, 'prod_backend': {
'hosts': ['lofoten', 'narvik']
}, 'prod_vpn': { # vpn/radius
'hosts': ['bergen', 'molde']
}, 'prod_db': {
'hosts': ['hangar-22']
}, 'prod': {
'hosts': ['lost-islands'], # monitoring and internal DNS
'children': [
'prod_frontend', 'prod_backend', 'misc',
'prod_vpn', 'prod_db', 'backups', 'monitor'
]
},
'misc': {
'hosts': ['gulf-of-oman', 'deploy']
}, 'backups': {
'hosts': ['myrkdalen', 'backup.skyid.no']
}, 'monitor': {
'hosts': ['monitoring', 'smokeping.skyid.no']
},
'dev_frontend': { 'hosts': ['mercury'] },
'dev_backend': { 'hosts': ['scrapmetal'] },
'dev_vpn': { 'hosts': ['dawnbreaker'] },
'dev_db': { 'hosts': ['propaganda'] },
'dev': {
'children': [
'dev_frontend', 'dev_backend', 'dev_vpn', 'dev_db'
]
},
"_meta": {
# since we're not doing hostvars this will make it a whole lot faster
# as Ansible won't have to run this script with --host for each one
"hostvars": {}
}
}
def inventory():
return dumps(inv, indent=2)
def group_vars(host):
for group in inv.values():
if host in group.get('hosts', []):
return dumps(group.get('vars', {}), indent=2)
return '{}'
if __name__ == '__main__':
from argparse import ArgumentParser
argparse = ArgumentParser()
argparse.add_argument(
'-l', '--list', action='store_true',
help='Print the inventory to stdout')
argparse.add_argument(
'-v', '--host', type=str,
help='Print host vars for a specific host')
args = argparse.parse_args()
if args.list:
print(inventory())
elif args.host:
print(group_vars(args.host))
else:
argparse.print_help()