106 lines
3.4 KiB
Python
106 lines
3.4 KiB
Python
#!/usr/bin/env python
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import argparse
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import openstack
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import logging
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import datetime
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import time
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DATE_FORMAT = '%Y-%m-%dT%H:%M:%SZ'
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PAUSE_SECONDS = 5
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log = logging.getLogger('openstack-cleanup')
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parser = argparse.ArgumentParser(description='Cleanup OpenStack resources')
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parser.add_argument('-v', '--verbose', action='store_true',
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help='Increase verbosity')
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parser.add_argument('--hours', type=int, default=4,
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help='Age (in hours) of VMs to cleanup (default: 4h)')
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parser.add_argument('--dry-run', action='store_true',
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help='Do not delete anything')
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args = parser.parse_args()
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oldest_allowed = datetime.datetime.now() - datetime.timedelta(hours=args.hours)
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def main():
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if args.dry_run:
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print('Running in dry-run mode')
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else:
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print('This will delete resources... (ctrl+c to cancel)')
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time.sleep(PAUSE_SECONDS)
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conn = openstack.connect()
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print('Servers...')
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map_if_old(conn.compute.delete_server,
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conn.compute.servers())
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print('Ports...')
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try:
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map_if_old(conn.network.delete_port,
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conn.network.ports())
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except openstack.exceptions.ConflictException as ex:
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# Need to find subnet-id which should be removed from a router
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for sn in conn.network.subnets():
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try:
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fn_if_old(conn.network.delete_subnet, sn)
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except openstack.exceptions.ConflictException:
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for r in conn.network.routers():
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print("Deleting subnet %s from router %s", sn, r)
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try:
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conn.network.remove_interface_from_router(
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r, subnet_id=sn.id)
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except Exception as ex:
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print("Failed to delete subnet from router as %s", ex)
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for ip in conn.network.ips():
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fn_if_old(conn.network.delete_ip, ip)
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# After removing unnecessary subnet from router, retry to delete ports
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map_if_old(conn.network.delete_port,
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conn.network.ports())
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print('Security groups...')
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try:
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map_if_old(conn.network.delete_security_group,
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conn.network.security_groups())
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except openstack.exceptions.ConflictException as ex:
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# Need to delete port when security groups is in used
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map_if_old(conn.network.delete_port,
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conn.network.ports())
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map_if_old(conn.network.delete_security_group,
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conn.network.security_groups())
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print('Subnets...')
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map_if_old(conn.network.delete_subnet,
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conn.network.subnets())
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print('Networks...')
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for n in conn.network.networks():
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if not n.is_router_external:
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fn_if_old(conn.network.delete_network, n)
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# runs the given fn to all elements of the that are older than allowed
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def map_if_old(fn, items):
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for item in items:
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fn_if_old(fn, item)
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# run the given fn function only if the passed item is older than allowed
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def fn_if_old(fn, item):
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created_at = datetime.datetime.strptime(item.created_at, DATE_FORMAT)
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if item.name == "default": # skip default security group
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return
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if created_at < oldest_allowed:
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print('Will delete %(name)s (%(id)s)' % item)
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if not args.dry_run:
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fn(item)
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if __name__ == '__main__':
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# execute only if run as a script
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main()
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