/
tables.py
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/
tables.py
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# 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 shortcuts
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 string_concat, ugettext_lazy as _
from horizon.conf import HORIZON_CONFIG
from horizon import exceptions
from horizon import messages
from horizon import tables
from horizon.templatetags import sizeformat
from horizon.utils.filters import replace_underscores
from openstack_dashboard import api
from openstack_dashboard.dashboards.project.access_and_security \
.floating_ips.workflows import IPAssociationWorkflow
from .tabs import InstanceDetailTabs, LogTab, ConsoleTab
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
def is_deleting(instance):
task_state = getattr(instance, "OS-EXT-STS:task_state", None)
if not task_state:
return False
return task_state.lower() == "deleting"
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')
def allowed(self, request, instance=None):
return True
def action(self, request, obj_id):
api.nova.server_delete(request, obj_id)
class RebootInstance(tables.BatchAction):
name = "reboot"
action_present = _("Hard Reboot")
action_past = _("Hard Rebooted")
data_type_singular = _("Instance")
data_type_plural = _("Instances")
classes = ('btn-danger', 'btn-reboot')
def allowed(self, request, instance=None):
return ((instance.status in ACTIVE_STATES
or instance.status == 'SHUTOFF')
and not is_deleting(instance))
def action(self, request, obj_id):
api.nova.server_reboot(request, obj_id, api.nova.REBOOT_HARD)
class SoftRebootInstance(RebootInstance):
name = "soft_reboot"
action_present = _("Soft Reboot")
action_past = _("Soft Rebooted")
def action(self, request, obj_id):
api.nova.server_reboot(request, obj_id, api.nova.REBOOT_SOFT)
class TogglePause(tables.BatchAction):
name = "pause"
action_present = (_("Pause"), _("Resume"))
action_past = (_("Paused"), _("Resumed"))
data_type_singular = _("Instance")
data_type_plural = _("Instances")
classes = ("btn-pause",)
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)
and not is_deleting(instance))
def action(self, request, obj_id):
if self.paused:
api.nova.server_unpause(request, obj_id)
self.current_past_action = UNPAUSE
else:
api.nova.server_pause(request, obj_id)
self.current_past_action = PAUSE
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",)
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)
and not is_deleting(instance))
def action(self, request, obj_id):
if self.suspended:
api.nova.server_resume(request, obj_id)
self.current_past_action = RESUME
else:
api.nova.server_suspend(request, obj_id)
self.current_past_action = SUSPEND
class LaunchLink(tables.LinkAction):
name = "launch"
verbose_name = _("Launch Instance")
url = "horizon:project:instances:launch"
classes = ("btn-launch", "ajax-modal")
def allowed(self, request, datum):
try:
limits = api.nova.tenant_absolute_limits(request, reserved=True)
instances_available = limits['maxTotalInstances'] \
- limits['totalInstancesUsed']
cores_available = limits['maxTotalCores'] \
- limits['totalCoresUsed']
ram_available = limits['maxTotalRAMSize'] - limits['totalRAMUsed']
if instances_available <= 0 or cores_available <= 0 \
or ram_available <= 0:
if "disabled" not in self.classes:
self.classes = [c for c in self.classes] + ['disabled']
self.verbose_name = string_concat(self.verbose_name, ' ',
_("(Quota exceeded)"))
else:
self.verbose_name = _("Launch Instance")
classes = [c for c in self.classes if c != "disabled"]
self.classes = classes
except:
LOG.exception("Failed to retrieve quota information")
# If we can't get the quota information, leave it to the
# API to check when launching
return True # The action should always be displayed
class EditInstance(tables.LinkAction):
name = "edit"
verbose_name = _("Edit Instance")
url = "horizon:project:instances:update"
classes = ("ajax-modal", "btn-edit")
def get_link_url(self, project):
return self._get_link_url(project, 'instance_info')
def _get_link_url(self, project, step_slug):
base_url = urlresolvers.reverse(self.url, args=[project.id])
param = urlencode({"step": step_slug})
return "?".join([base_url, param])
def allowed(self, request, instance):
return not is_deleting(instance)
class EditInstanceSecurityGroups(EditInstance):
name = "edit_secgroups"
verbose_name = _("Edit Security Groups")
def get_link_url(self, project):
return self._get_link_url(project, 'update_security_groups')
def allowed(self, request, instance=None):
return (instance.status in ACTIVE_STATES and
not is_deleting(instance) and
request.user.tenant_id == instance.tenant_id)
class CreateSnapshot(tables.LinkAction):
name = "snapshot"
verbose_name = _("Create Snapshot")
url = "horizon:project:images_and_snapshots:snapshots:create"
classes = ("ajax-modal", "btn-camera")
def allowed(self, request, instance=None):
return instance.status in ACTIVE_STATES and not is_deleting(instance)
class ConsoleLink(tables.LinkAction):
name = "console"
verbose_name = _("Console")
url = "horizon:project:instances:detail"
classes = ("btn-console",)
def allowed(self, request, instance=None):
return instance.status in ACTIVE_STATES and not is_deleting(instance)
def get_link_url(self, datum):
base_url = super(ConsoleLink, self).get_link_url(datum)
tab_query_string = ConsoleTab(InstanceDetailTabs).get_query_string()
return "?".join([base_url, tab_query_string])
class LogLink(tables.LinkAction):
name = "log"
verbose_name = _("View Log")
url = "horizon:project:instances:detail"
classes = ("btn-log",)
def allowed(self, request, instance=None):
return instance.status in ACTIVE_STATES and not is_deleting(instance)
def get_link_url(self, datum):
base_url = super(LogLink, self).get_link_url(datum)
tab_query_string = LogTab(InstanceDetailTabs).get_query_string()
return "?".join([base_url, tab_query_string])
class ConfirmResize(tables.Action):
name = "confirm"
verbose_name = _("Confirm Resize/Migrate")
classes = ("btn-confirm", "btn-action-required")
def allowed(self, request, instance):
return instance.status == 'VERIFY_RESIZE'
def single(self, table, request, instance):
api.nova.server_confirm_resize(request, instance)
class RevertResize(tables.Action):
name = "revert"
verbose_name = _("Revert Resize/Migrate")
classes = ("btn-revert", "btn-action-required")
def allowed(self, request, instance):
return instance.status == 'VERIFY_RESIZE'
def single(self, table, request, instance):
api.nova.server_revert_resize(request, instance)
class AssociateIP(tables.LinkAction):
name = "associate"
verbose_name = _("Associate Floating IP")
url = "horizon:project:access_and_security:floating_ips:associate"
classes = ("ajax-modal", "btn-associate")
def allowed(self, request, instance):
fip = api.network.NetworkClient(request).floating_ips
if fip.is_simple_associate_supported():
return False
return not is_deleting(instance)
def get_link_url(self, datum):
base_url = urlresolvers.reverse(self.url)
next = urlresolvers.reverse("horizon:project:instances:index")
params = {"instance_id": self.table.get_object_id(datum),
IPAssociationWorkflow.redirect_param_name: next}
params = urlencode(params)
return "?".join([base_url, params])
class SimpleAssociateIP(tables.Action):
name = "associate-simple"
verbose_name = _("Associate Floating IP")
classes = ("btn-associate-simple",)
def allowed(self, request, instance):
fip = api.network.NetworkClient(request).floating_ips
if not fip.is_simple_associate_supported():
return False
return not is_deleting(instance)
def single(self, table, request, instance_id):
try:
# target_id is port_id for Quantum and instance_id for Nova Network
# (Quantum API wrapper returns a 'portid_fixedip' string)
target_id = api.network.floating_ip_target_get_by_instance(
request, instance_id).split('_')[0]
fip = api.network.tenant_floating_ip_allocate(request)
api.network.floating_ip_associate(request, fip.id, target_id)
messages.success(request,
_("Successfully associated floating IP: %s")
% fip.ip)
except:
exceptions.handle(request,
_("Unable to associate floating IP."))
return shortcuts.redirect("horizon:project:instances:index")
class SimpleDisassociateIP(tables.Action):
name = "disassociate"
verbose_name = _("Disassociate Floating IP")
classes = ("btn-danger", "btn-disassociate",)
def allowed(self, request, instance):
if not HORIZON_CONFIG["simple_ip_management"]:
return False
return not is_deleting(instance)
def single(self, table, request, instance_id):
try:
# target_id is port_id for Quantum and instance_id for Nova Network
# (Quantum API wrapper returns a 'portid_fixedip' string)
target_id = api.network.floating_ip_target_get_by_instance(
request, instance_id).split('_')[0]
fips = [fip for fip in api.network.tenant_floating_ip_list(request)
if fip.port_id == target_id]
# Removing multiple floating IPs at once doesn't work, so this pops
# off the first one.
if fips:
fip = fips.pop()
api.network.floating_ip_disassociate(request,
fip.id, target_id)
api.network.tenant_floating_ip_release(request, fip.id)
messages.success(request,
_("Successfully disassociated "
"floating IP: %s") % fip.ip)
else:
messages.info(request, _("No floating IPs to disassociate."))
except:
exceptions.handle(request,
_("Unable to disassociate floating IP."))
return shortcuts.redirect("horizon:project:instances:index")
class UpdateRow(tables.Row):
ajax = True
def get_data(self, request, instance_id):
instance = api.nova.server_get(request, instance_id)
instance.full_flavor = api.nova.flavor_get(request,
instance.flavor["id"])
return instance
def get_ips(instance):
template_name = 'project/instances/_instance_ips.html'
context = {"instance": instance}
return template.loader.render_to_string(template_name, context)
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")
def get_keyname(instance):
if hasattr(instance, "key_name"):
keyname = instance.key_name
return keyname
return _("Not available")
def get_power_state(instance):
return POWER_STATES.get(getattr(instance, "OS-EXT-STS:power_state", 0), '')
STATUS_DISPLAY_CHOICES = (
("resize", "Resize/Migrate"),
("verify_resize", "Confirm or Revert Resize/Migrate"),
("revert_resize", "Revert Resize/Migrate"),
)
TASK_DISPLAY_CHOICES = (
("image_snapshot", "Snapshotting"),
("resize_prep", "Preparing Resize or Migrate"),
("resize_migrating", "Resizing or Migrating"),
("resize_migrated", "Resized or Migrated"),
("resize_finish", "Finishing Resize or Migrate"),
("resize_confirming", "Confirming Resize or Nigrate"),
("resize_reverting", "Reverting Resize or Migrate"),
("unpausing", "Resuming"),
)
class InstancesTable(tables.DataTable):
TASK_STATUS_CHOICES = (
(None, True),
("none", True)
)
STATUS_CHOICES = (
("active", True),
("shutoff", True),
("suspended", True),
("paused", True),
("error", False),
)
name = tables.Column("name",
link=("horizon:project:instances:detail"),
verbose_name=_("Instance Name"))
ip = tables.Column(get_ips, verbose_name=_("IP Address"))
size = tables.Column(get_size,
verbose_name=_("Size"),
attrs={'data-type': '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,
display_choices=STATUS_DISPLAY_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 = (ConfirmResize, RevertResize, CreateSnapshot,
SimpleAssociateIP, AssociateIP,
SimpleDisassociateIP, EditInstance,
EditInstanceSecurityGroups, ConsoleLink, LogLink,
TogglePause, ToggleSuspend, SoftRebootInstance,
RebootInstance, TerminateInstance)