# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# 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.
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from horizon.utils import validators as utils_validators
from openstack_dashboard.api import cinder
from openstack_dashboard.dashboards.admin.volumes.snapshots.forms \
import populate_status_choices
from openstack_dashboard.dashboards.project.volumes.volumes \
import forms as project_forms
# This set of states was pulled from cinder's admin_actions.py
STATUS_CHOICES = (
('attaching', _('Attaching')),
('available', _('Available')),
('creating', _('Creating')),
('deleting', _('Deleting')),
('detaching', _('Detaching')),
('error', _('Error')),
('error_deleting', _('Error Deleting')),
('in-use', _('In Use')),
('maintenance', _('Maintenance')),
)
[docs]class ManageVolume(forms.SelfHandlingForm):
identifier = forms.CharField(
max_length=255,
label=_("Identifier"),
help_text=_("Name or other identifier for existing volume"))
id_type = forms.ThemableChoiceField(
label=_("Identifier Type"),
help_text=_("Type of backend device identifier provided"))
host = forms.CharField(
max_length=255,
label=_("Host"),
help_text=_("Cinder host on which the existing volume resides; "
"takes the form: host@backend-name#pool"))
name = forms.CharField(
max_length=255,
label=_("Volume Name"),
required=False,
help_text=_("Volume name to be assigned"))
description = forms.CharField(max_length=255, widget=forms.Textarea(
attrs={'rows': 4}),
label=_("Description"), required=False)
metadata = forms.CharField(max_length=255, widget=forms.Textarea(
attrs={'rows': 2}),
label=_("Metadata"), required=False,
help_text=_("Comma-separated key=value pairs"),
validators=[utils_validators.validate_metadata])
volume_type = forms.ThemableChoiceField(
label=_("Volume Type"),
required=False)
availability_zone = forms.ThemableChoiceField(
label=_("Availability Zone"),
required=False)
bootable = forms.BooleanField(
label=_("Bootable"),
required=False,
help_text=_("Specifies that the newly created volume "
"should be marked as bootable"))
def __init__(self, request, *args, **kwargs):
super(ManageVolume, self).__init__(request, *args, **kwargs)
self.fields['id_type'].choices = [("source-name", _("Name"))] + \
[("source-id", _("ID"))]
volume_types = cinder.volume_type_list(request)
self.fields['volume_type'].choices = [("", _("No volume type"))] + \
[(type.name, type.name)
for type in volume_types]
self.fields['availability_zone'].choices = \
project_forms.availability_zones(request)
[docs] def handle(self, request, data):
try:
az = data.get('availability_zone')
# assume user enters metadata with "key1=val1,key2=val2"
# convert to dictionary
metadataDict = {}
metadata = data.get('metadata')
if metadata:
metadata.replace(" ", "")
for item in metadata.split(','):
key, value = item.split('=')
metadataDict[key] = value
cinder.volume_manage(request,
host=data['host'],
identifier=data['identifier'],
id_type=data['id_type'],
name=data['name'],
description=data['description'],
volume_type=data['volume_type'],
availability_zone=az,
metadata=metadataDict,
bootable=data['bootable'])
# for success message, use identifier if user does not
# provide a volume name
volume_name = data['name']
if not volume_name:
volume_name = data['identifier']
messages.success(
request,
_('Successfully sent the request to manage volume: %s')
% volume_name)
return True
except Exception:
redirect = reverse("horizon:admin:volumes:index")
exceptions.handle(request, _("Unable to manage volume."),
redirect=redirect)
[docs]class UnmanageVolume(forms.SelfHandlingForm):
name = forms.CharField(label=_("Volume Name"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
host = forms.CharField(label=_("Host"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
volume_id = forms.CharField(label=_("ID"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
[docs] def handle(self, request, data):
try:
cinder.volume_unmanage(request, self.initial['volume_id'])
messages.success(
request,
_('Successfully sent the request to unmanage volume: %s')
% data['name'])
return True
except Exception:
redirect = reverse("horizon:admin:volumes:index")
exceptions.handle(request, _("Unable to unmanage volume."),
redirect=redirect)
[docs]class MigrateVolume(forms.SelfHandlingForm):
name = forms.CharField(label=_("Volume Name"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
current_host = forms.CharField(label=_("Current Host"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
host = forms.ThemableChoiceField(
label=_("Destination Host"),
help_text=_("Choose a Host to migrate to."))
force_host_copy = forms.BooleanField(label=_("Force Host Copy"),
initial=False, required=False)
def __init__(self, request, *args, **kwargs):
super(MigrateVolume, self).__init__(request, *args, **kwargs)
initial = kwargs.get('initial', {})
self.fields['host'].choices = self.populate_host_choices(request,
initial)
[docs] def populate_host_choices(self, request, initial):
hosts = initial.get('hosts')
current_host = initial.get('current_host')
host_list = [(host.name, host.name)
for host in hosts
if host.name != current_host]
if host_list:
host_list.insert(0, ("", _("Select a new host")))
else:
host_list.insert(0, ("", _("No other hosts available")))
return sorted(host_list)
[docs] def handle(self, request, data):
try:
cinder.volume_migrate(request,
self.initial['volume_id'],
data['host'],
data['force_host_copy'])
messages.success(
request,
_('Successfully sent the request to migrate volume: %s')
% data['name'])
return True
except Exception:
redirect = reverse("horizon:admin:volumes:volumes_tab")
exceptions.handle(request, _("Failed to migrate volume."),
redirect=redirect)
[docs]class UpdateStatus(forms.SelfHandlingForm):
status = forms.ThemableChoiceField(label=_("Status"))
def __init__(self, request, *args, **kwargs):
super(UpdateStatus, self).__init__(request, *args, **kwargs)
initial = kwargs.get('initial', {})
self.fields['status'].choices = (
populate_status_choices(initial, STATUS_CHOICES))
[docs] def handle(self, request, data):
# Obtain the localized status for including in the message
for choice in self.fields['status'].choices:
if choice[0] == data['status']:
new_status = choice[1]
break
else:
new_status = data['status']
try:
cinder.volume_reset_state(request,
self.initial['volume_id'],
data['status'])
messages.success(request,
_('Successfully updated volume status to "%s".') %
new_status)
return True
except Exception:
redirect = reverse("horizon:admin:volumes:index")
exceptions.handle(request,
_('Unable to update volume status to "%s".') %
new_status, redirect=redirect)