nodes.py

#!/usr/bin/python3
#
# Usage:
#   ./nodes.py --url http://localhost:5240/MAAS/ --apikey "someapikey"
#   ./nodes.py --url http://localhost:5240/MAAS/ --username foobar --pasword sekret
#
#  Example output:
#  node01	Deployed	11 days	2019-08-29 18:56:56+00:00
#  node02	Deployed	26 days	2019-08-14 13:19:01+00:00
#  node03	Deployed	16 hours	2019-09-09 03:55:11+00:00
#
# Author: Felipe Reyes <felipe.reyes@canonical.com>
#
# TODO: use prettytable module to get sorting and better formatting out of the box.

import argparse
import datetime
import sys

try:
    from maas.client import connect, login as maas_login
except ImportError:
    sys.stderr.write("Cannot import maas.client.\n")
    sys.stderr.write("apt install python3-libmaas\n")
    sys.exit(1)

try:
    import humanize
except ImportError:
    sys.stderr.write("apt install python3-humanize\n")
    sys.exit(1)


STATUSES = ["Deployed"]


def login(opts):
    if opts.apikey:
        return  connect(opts.url, apikey=opts.apikey)
    else:
        return maas_login(opts.url, username=opts.username,
                      password=opts.password)


def setup_opts():
    parser = argparse.ArgumentParser()
    parser.add_argument('--url', dest="url",
                        default="http://localhost:5240/MAAS/",
                        help='MAAS url')
    parser.add_argument('-u', '--username', dest='username', required=False,
                        help="User")
    parser.add_argument('-p', '--password', dest='password', required=False,
                        help='Password')
    parser.add_argument('--apikey', dest='apikey')
    args = parser.parse_args()
    return args


def main():
    opts = setup_opts()
    client = login(opts)
    now = datetime.datetime.now(datetime.timezone.utc)
    for machine in client.machines.list():
        if machine.status_name not in STATUSES:
            continue

        for event in client.events.query(system_ids=[machine.system_id],
                                         level='INFO'):
            if event.event_type == "Deployed":
                print(machine.hostname, event.event_type,
                      humanize.naturaldelta(now - event.created),
                      event.created,
                      sep='\t')
                break  # we only report the latest event

if __name__ == "__main__":
    main()