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 1.0.0

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usage.py

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# Copyright 2013 OpenStack Foundation.

#

# Licensed under the Apache License, Version 2.0 (the "License"); you may

# not use this file except in compliance with the License. You may obtain

# a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations

# under the License.

#

"""Usage action implementations"""

import datetime

import logging

import sys

from cliff import lister

from openstackclient.common import utils

class ListUsage(lister.Lister):

"""List resource usage per project. """

log = logging.getLogger(__name__ + ".ListUsage")

def get_parser(self, prog_name):

parser = super(ListUsage, self).get_parser(prog_name)

parser.add_argument(

"--start",

metavar="<start>",

default=None,

help="Usage range start date, ex 2012-01-20"

" (default: 4 weeks ago)."

)

parser.add_argument(

"--end",

metavar="<end>",

default=None,

help="Usage range end date, ex 2012-01-20 (default: tomorrow)"

)

return parser

def take_action(self, parsed_args):

self.log.debug("take_action(%s)", parsed_args)

def _format_project(project):

if not project:

return ""

if project in project_cache.keys():

return project_cache[project].name

else:

return project

compute_client = self.app.client_manager.compute

columns = (

"tenant_id",

"total_memory_mb_usage",

"total_vcpus_usage",

"total_local_gb_usage"

)

column_headers = (

"Project",

"RAM MB-Hours",

"CPU Hours",

"Disk GB-Hours"

)

dateformat = "%Y-%m-%d"

now = datetime.datetime.utcnow()

if parsed_args.start:

start = datetime.datetime.strptime(parsed_args.start, dateformat)

else:

start = now - datetime.timedelta(weeks=4)

if parsed_args.end:

end = datetime.datetime.strptime(parsed_args.end, dateformat)

else:

end = now + datetime.timedelta(days=1)

usage_list = compute_client.usage.list(start, end)

# Cache the project list

project_cache = {}

try:

for p in self.app.client_manager.identity.tenants.list():

project_cache[p.id] = p

except Exception:

# Just forget it if there's any trouble

pass

if len(usage_list) > 0:

sys.stdout.write("Usage from %s to %s:" % (

start.strftime(dateformat),

end.strftime(dateformat),

))

return (column_headers,

(utils.get_item_properties(

s, columns,

formatters={

'tenant_id': _format_project,

'total_memory_mb_usage': lambda x: float("%.2f" % x),

'total_vcpus_usage': lambda x: float("%.2f" % x),

'total_local_gb_usage': lambda x: float("%.2f" % x),

},

) for s in usage_list))