# 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. import datetime from django.conf import settings from django.utils import timezone from django.utils.translation import gettext_lazy as _ from horizon import exceptions from horizon import forms from horizon import messages from openstack_dashboard import api from openstack_dashboard.usage import quotas class BaseUsage(object): show_deleted = False def __init__(self, request, project_id=None): self.project_id = project_id or request.user.tenant_id self.request = request self.summary = {} self.usage_list = [] @property def today(self): return timezone.now() @property def first_day(self): days_range = settings.OVERVIEW_DAYS_RANGE if days_range: return self.today.date() - datetime.timedelta(days=days_range) return datetime.date(self.today.year, self.today.month, 1) @staticmethod def get_start(year, month, day): start = datetime.datetime(year, month, day, 0, 0, 0) return timezone.make_aware(start, timezone.utc) @staticmethod def get_end(year, month, day): end = datetime.datetime(year, month, day, 23, 59, 59) return timezone.make_aware(end, timezone.utc) def get_instances(self): instance_list = [] for u in self.usage_list: instance_list.extend(u.server_usages) return instance_list def get_date_range(self): if not hasattr(self, "start") or not hasattr(self, "end"): args_start = (self.first_day.year, self.first_day.month, self.first_day.day) args_end = (self.today.year, self.today.month, self.today.day) form = self.get_form() if form.is_valid(): start = form.cleaned_data['start'] end = form.cleaned_data['end'] args_start = (start.year, start.month, start.day) args_end = (end.year, end.month, end.day) elif form.is_bound: messages.error(self.request, _("Invalid date format: " "Using today as default.")) self.start = self.get_start(*args_start) self.end = self.get_end(*args_end) return self.start, self.end def init_form(self): self.start = self.first_day self.end = self.today.date() return self.start, self.end def get_form(self): if not hasattr(self, 'form'): req = self.request start = req.GET.get('start', req.session.get('usage_start')) end = req.GET.get('end', req.session.get('usage_end')) if start and end: # bound form self.form = forms.DateForm({'start': start, 'end': end}) else: # non-bound form init = self.init_form() start = init[0].isoformat() end = init[1].isoformat() self.form = forms.DateForm(initial={'start': start, 'end': end}) req.session['usage_start'] = start req.session['usage_end'] = end return self.form def get_usage_list(self, start, end): return [] def summarize(self, start, end): if not settings.OPENSTACK_USE_SIMPLE_TENANT_USAGE: return if start <= end and start <= self.today: # The API can't handle timezone aware datetime, so convert back # to naive UTC just for this last step. start = timezone.make_naive(start, timezone.utc) end = timezone.make_naive(end, timezone.utc) try: self.usage_list = self.get_usage_list(start, end) except Exception: exceptions.handle(self.request, _('Unable to retrieve usage information.')) elif end < start: messages.error(self.request, _("Invalid time period. The end date should be " "more recent than the start date.")) elif start > self.today: messages.error(self.request, _("Invalid time period. You are requesting " "data from the future which may not exist.")) for project_usage in self.usage_list: project_summary = project_usage.get_summary() for key, value in project_summary.items(): self.summary.setdefault(key, 0) self.summary[key] += value def csv_link(self): form = self.get_form() data = {} if hasattr(form, "cleaned_data"): data = form.cleaned_data if not ('start' in data and 'end' in data): data = {"start": self.today.date(), "end": self.today.date()} return "?start=%s&end=%s&format=csv" % (data['start'], data['end']) class GlobalUsage(BaseUsage): show_deleted = True def get_usage_list(self, start, end): return api.nova.usage_list(self.request, start, end) class ProjectUsage(BaseUsage): attrs = ('memory_mb', 'vcpus', 'uptime', 'hours', 'local_gb') def __init__(self, request, project_id=None): super().__init__(request, project_id) self.limits = {} self.quotas = {} def get_usage_list(self, start, end): show_deleted = self.request.GET.get('show_deleted', self.show_deleted) instances = [] deleted_instances = [] usage = api.nova.usage_get(self.request, self.project_id, start, end) # Attribute may not exist if there are no instances if hasattr(usage, 'server_usages'): now = self.today for server_usage in usage.server_usages: # This is a way to phrase uptime in a way that is compatible # with the 'timesince' filter. (Use of local time intentional.) server_uptime = server_usage['uptime'] total_uptime = now - datetime.timedelta(seconds=server_uptime) server_usage['uptime_at'] = total_uptime if server_usage['ended_at'] and not show_deleted: deleted_instances.append(server_usage) else: instances.append(server_usage) usage.server_usages = instances return (usage,) def get_limits(self): self.limits = quotas.tenant_quota_usages(self.request)