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#!/usr/bin/env python
"""Delete all machines from given MAAS environment."""
from __future__ import print_function
import argparse
from datetime import (
datetime,
timedelta,
)
import sys
from jujupy import JujuData
import substrate
def main(argv):
parser = argparse.ArgumentParser(
description="Delete the machines in MAAS.")
parser.add_argument("name", help="Name of the MAAS in juju config.")
parser.add_argument('--hours', help='Minimum age in hours.', type=float)
parser.add_argument('--dry-run', action='store_true',
help="Show what would be deleted, but don't delete.")
args = parser.parse_args(argv[1:])
boot_config = JujuData.from_config(args.name)
with substrate.maas_account_from_boot_config(boot_config) as manager:
machines = manager.get_allocated_nodes()
if args.hours is not None:
threshold = datetime.now() - timedelta(hours=args.hours)
machines = dict(
(k, v) for k, v in machines.items()
if manager.get_acquire_date(v['system_id']) < threshold)
print("Found {} machines: {}".format(len(machines), machines.keys()))
if not args.dry_run:
manager.terminate_instances(machine["resource_uri"]
for machine in machines.values())
print("Released.")
return 0
if __name__ == "__main__":
sys.exit(main(sys.argv))
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