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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 collections
import datetime
import functools
from cliff import columns as cliff_columns
from novaclient import api_versions
from osc_lib.command import command
from osc_lib import utils
from openstackclient.i18n import _
# TODO(stephenfin): This exists in a couple of places and should be moved to a
# common module
class ProjectColumn(cliff_columns.FormattableColumn):
"""Formattable column for project column.
Unlike the parent FormattableColumn class, the initializer of the class
takes project_cache as the second argument.
``osc_lib.utils.get_item_properties`` instantiates ``FormattableColumn``
objects with a single parameter, the column value, so you need to pass a
partially initialized class like ``functools.partial(ProjectColumn,
project_cache)`` to use this.
"""
def __init__(self, value, project_cache=None):
super().__init__(value)
self.project_cache = project_cache or {}
def human_readable(self):
project = self._value
if not project:
return ''
if project in self.project_cache.keys():
return self.project_cache[project].name
return project
class CountColumn(cliff_columns.FormattableColumn):
def human_readable(self):
return len(self._value)
class FloatColumn(cliff_columns.FormattableColumn):
def human_readable(self):
return float("%.2f" % self._value)
def _formatters(project_cache):
return {
'tenant_id': functools.partial(
ProjectColumn, project_cache=project_cache),
'server_usages': CountColumn,
'total_memory_mb_usage': FloatColumn,
'total_vcpus_usage': FloatColumn,
'total_local_gb_usage': FloatColumn,
}
def _get_usage_marker(usage):
marker = None
if hasattr(usage, 'server_usages') and usage.server_usages:
marker = usage.server_usages[-1]['instance_id']
return marker
def _get_usage_list_marker(usage_list):
marker = None
if usage_list:
marker = _get_usage_marker(usage_list[-1])
return marker
def _merge_usage(usage, next_usage):
usage.server_usages.extend(next_usage.server_usages)
usage.total_hours += next_usage.total_hours
usage.total_memory_mb_usage += next_usage.total_memory_mb_usage
usage.total_vcpus_usage += next_usage.total_vcpus_usage
usage.total_local_gb_usage += next_usage.total_local_gb_usage
def _merge_usage_list(usages, next_usage_list):
for next_usage in next_usage_list:
if next_usage.tenant_id in usages:
_merge_usage(usages[next_usage.tenant_id], next_usage)
else:
usages[next_usage.tenant_id] = next_usage
class ListUsage(command.Lister):
_description = _("List resource usage per project")
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):
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",
"server_usages",
"total_memory_mb_usage",
"total_vcpus_usage",
"total_local_gb_usage"
)
column_headers = (
"Project",
"Servers",
"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)
if compute_client.api_version < api_versions.APIVersion("2.40"):
usage_list = compute_client.usage.list(start, end, detailed=True)
else:
# If the number of instances used to calculate the usage is greater
# than CONF.api.max_limit, the usage will be split across multiple
# requests and the responses will need to be merged back together.
usages = collections.OrderedDict()
usage_list = compute_client.usage.list(start, end, detailed=True)
_merge_usage_list(usages, usage_list)
marker = _get_usage_list_marker(usage_list)
while marker:
next_usage_list = compute_client.usage.list(
start, end, detailed=True, marker=marker)
marker = _get_usage_list_marker(next_usage_list)
if marker:
_merge_usage_list(usages, next_usage_list)
usage_list = list(usages.values())
# Cache the project list
project_cache = {}
try:
for p in self.app.client_manager.identity.projects.list():
project_cache[p.id] = p
except Exception:
# Just forget it if there's any trouble
pass
if parsed_args.formatter == 'table' and len(usage_list) > 0:
self.app.stdout.write(_("Usage from %(start)s to %(end)s: \n") % {
"start": start.strftime(dateformat),
"end": end.strftime(dateformat),
})
return (
column_headers,
(
utils.get_item_properties(
s, columns,
formatters=_formatters(project_cache),
) for s in usage_list
),
)
class ShowUsage(command.ShowOne):
_description = _("Show resource usage for a single project")
def get_parser(self, prog_name):
parser = super(ShowUsage, self).get_parser(prog_name)
parser.add_argument(
"--project",
metavar="<project>",
default=None,
help=_("Name or ID of project to show usage for")
)
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):
identity_client = self.app.client_manager.identity
compute_client = self.app.client_manager.compute
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)
if parsed_args.project:
project = utils.find_resource(
identity_client.projects,
parsed_args.project,
).id
else:
# Get the project from the current auth
project = self.app.client_manager.auth_ref.project_id
usage = compute_client.usage.get(project, start, end)
if parsed_args.formatter == 'table':
self.app.stdout.write(_(
"Usage from %(start)s to %(end)s on project %(project)s: \n"
) % {
"start": start.strftime(dateformat),
"end": end.strftime(dateformat),
"project": project,
})
columns = (
"tenant_id",
"server_usages",
"total_memory_mb_usage",
"total_vcpus_usage",
"total_local_gb_usage"
)
column_headers = (
"Project",
"Servers",
"RAM MB-Hours",
"CPU Hours",
"Disk GB-Hours"
)
data = utils.get_item_properties(
usage, columns, formatters=_formatters(None))
return column_headers, data
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