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Evangelos Foutras authored
By adding a top-level element called "_meta" to the --list response, Ansible will not call the inventory script with --host for each host thus saving a lot of time and many requests to the Hetzner Cloud API. The speed-up is significant; `ansible-inventory --list` is down from about 1 minute to just 7 seconds in my testing (with ~60ms latency).
Evangelos Foutras authoredBy adding a top-level element called "_meta" to the --list response, Ansible will not call the inventory script with --host for each host thus saving a lot of time and many requests to the Hetzner Cloud API. The speed-up is significant; `ansible-inventory --list` is down from about 1 minute to just 7 seconds in my testing (with ~60ms latency).
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hcloud_inventory.py 1.14 KiB
#!/usr/bin/env python
#
# Dynamic inventory script for getting infrastructure information from hcloud
import argparse
import json
import sys
from hcloud import Client
from misc.get_key import load_vault
def parse_args():
parser = argparse.ArgumentParser(description="Hcloud dynamic inventory script")
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--list', action='store_true')
group.add_argument('--host')
return parser.parse_args()
def get_host_details(server):
return {'ansible_host': server.public_net.ipv4.ip,
'ansible_port': 22,
'ansible_user': "root"}
def main():
args = parse_args()
loaded = load_vault('misc/vault_hetzner.yml')
client = Client(token=loaded["hetzner_cloud_api_key"])
servers = client.servers.get_all()
hostvars = {server.name: get_host_details(server) for server in servers}
if args.list:
hosts = [server.name for server in servers]
json.dump({'hcloud': hosts, '_meta': {'hostvars': hostvars}}, sys.stdout)
else:
json.dump(hostvars[args.host], sys.stdout)
if __name__ == '__main__':
main()