Source code for horizon.dashboards.nova.instances_and_volumes.instances.tables

# vim: tabstop=4 shiftwidth=4 softtabstop=4

# Copyright 2012 Nebula, Inc.
#
#    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 logging

from django import template
from django.core import urlresolvers
from django.template.defaultfilters import title
from django.utils.http import urlencode
from django.utils.translation import ugettext_lazy as _

from horizon import api
from horizon import tables
from horizon.templatetags import sizeformat
from horizon.utils.filters import replace_underscores

from horizon.dashboards.nova.access_and_security \
        .floating_ips.workflows import IPAssociationWorkflow
from .tabs import InstanceDetailTabs, LogTab, VNCTab


LOG = logging.getLogger(__name__)

ACTIVE_STATES = ("ACTIVE",)

POWER_STATES = {
    0: "NO STATE",
    1: "RUNNING",
    2: "BLOCKED",
    3: "PAUSED",
    4: "SHUTDOWN",
    5: "SHUTOFF",
    6: "CRASHED",
    7: "SUSPENDED",
    8: "FAILED",
    9: "BUILDING",
}

PAUSE = 0
UNPAUSE = 1
SUSPEND = 0
RESUME = 1


[docs]class TerminateInstance(tables.BatchAction): name = "terminate" action_present = _("Terminate") action_past = _("Scheduled termination of") data_type_singular = _("Instance") data_type_plural = _("Instances") classes = ('btn-danger', 'btn-terminate')
[docs] def allowed(self, request, instance=None): if instance: return instance.status != "PAUSED" return True
[docs] def action(self, request, obj_id): api.server_delete(request, obj_id)
[docs]class RebootInstance(tables.BatchAction): name = "reboot" action_present = _("Reboot") action_past = _("Rebooted") data_type_singular = _("Instance") data_type_plural = _("Instances") classes = ('btn-danger', 'btn-reboot')
[docs] def allowed(self, request, instance=None): return instance.status in ACTIVE_STATES or instance.status == 'SHUTOFF'
[docs] def action(self, request, obj_id): api.server_reboot(request, obj_id)
[docs]class TogglePause(tables.BatchAction): name = "pause" action_present = (_("Pause"), _("Unpause")) action_past = (_("Paused"), _("Unpaused")) data_type_singular = _("Instance") data_type_plural = _("Instances") classes = ("btn-pause",)
[docs] def allowed(self, request, instance=None): self.paused = False if not instance: return self.paused self.paused = instance.status == "PAUSED" if self.paused: self.current_present_action = UNPAUSE else: self.current_present_action = PAUSE return instance.status in ACTIVE_STATES or self.paused
[docs] def action(self, request, obj_id): if self.paused: api.server_unpause(request, obj_id) self.current_past_action = UNPAUSE else: api.server_pause(request, obj_id) self.current_past_action = PAUSE
[docs]class ToggleSuspend(tables.BatchAction): name = "suspend" action_present = (_("Suspend"), _("Resume")) action_past = (_("Suspended"), _("Resumed")) data_type_singular = _("Instance") data_type_plural = _("Instances") classes = ("btn-suspend",)
[docs] def allowed(self, request, instance=None): self.suspended = False if not instance: self.suspended self.suspended = instance.status == "SUSPENDED" if self.suspended: self.current_present_action = RESUME else: self.current_present_action = SUSPEND return instance.status in ACTIVE_STATES or self.suspended
[docs] def action(self, request, obj_id): if self.suspended: api.server_resume(request, obj_id) self.current_past_action = RESUME else: api.server_suspend(request, obj_id) self.current_past_action = SUSPEND
[docs]class EditInstance(tables.LinkAction): name = "edit" verbose_name = _("Edit Instance") url = "horizon:nova:instances_and_volumes:instances:update" classes = ("ajax-modal", "btn-edit")
[docs]class AssociateIP(tables.LinkAction): name = "associate" verbose_name = _("Associate Floating IP") url = "horizon:nova:access_and_security:floating_ips:associate" classes = ("ajax-modal", "btn-associate")
[docs]class UpdateRow(tables.Row): ajax = True
[docs] def get_data(self, request, instance_id): instance = api.server_get(request, instance_id) instance.full_flavor = api.flavor_get(request, instance.flavor["id"]) return instance
[docs]def get_ips(instance): template_name = 'nova/instances_and_volumes/instances/_instance_ips.html' context = {"instance": instance} return template.loader.render_to_string(template_name, context)
[docs]def get_size(instance): if hasattr(instance, "full_flavor"): size_string = _("%(name)s | %(RAM)s RAM | %(VCPU)s VCPU " "| %(disk)s Disk") vals = {'name': instance.full_flavor.name, 'RAM': sizeformat.mbformat(instance.full_flavor.ram), 'VCPU': instance.full_flavor.vcpus, 'disk': sizeformat.diskgbformat(instance.full_flavor.disk)} return size_string % vals return _("Not available")
[docs]def get_keyname(instance): if hasattr(instance, "key_name"): keyname = instance.key_name return keyname return _("Not available")
[docs]def get_power_state(instance): return POWER_STATES.get(getattr(instance, "OS-EXT-STS:power_state", 0), '')
[docs]class InstancesTable(tables.DataTable): TASK_STATUS_CHOICES = ( (None, True), ("none", True) ) STATUS_CHOICES = ( ("active", True), ("suspended", True), ("paused", True), ("error", False), ) TASK_DISPLAY_CHOICES = ( ("image_snapshot", "Snapshotting"), ) name = tables.Column("name", link=("horizon:nova:instances_and_volumes:" "instances:detail"), verbose_name=_("Instance Name")) ip = tables.Column(get_ips, verbose_name=_("IP Address")) size = tables.Column(get_size, verbose_name=_("Size")) keypair = tables.Column(get_keyname, verbose_name=_("Keypair")) status = tables.Column("status", filters=(title, replace_underscores), verbose_name=_("Status"), status=True, status_choices=STATUS_CHOICES) task = tables.Column("OS-EXT-STS:task_state", verbose_name=_("Task"), filters=(title, replace_underscores), status=True, status_choices=TASK_STATUS_CHOICES, display_choices=TASK_DISPLAY_CHOICES) state = tables.Column(get_power_state, filters=(title, replace_underscores), verbose_name=_("Power State")) class Meta: name = "instances" verbose_name = _("Instances") status_columns = ["status", "task"] row_class = UpdateRow table_actions = (LaunchLink, TerminateInstance) row_actions = (SnapshotLink, AssociateIP, EditInstance, ConsoleLink, LogLink, TogglePause, ToggleSuspend, RebootInstance, TerminateInstance)