Source code for horizon.dashboards.nova.instances_and_volumes.volumes.forms

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

# Copyright 2012 Nebula, Inc.
# All rights reserved.

"""
Views for managing Nova volumes.
"""

import logging

from django import shortcuts
from django.contrib import messages
from django.utils.translation import ugettext_lazy as _

from horizon import api
from horizon import forms
from horizon import exceptions
from novaclient import exceptions as novaclient_exceptions

from ..instances.tables import ACTIVE_STATES

LOG = logging.getLogger(__name__)


[docs]class CreateForm(forms.SelfHandlingForm): name = forms.CharField(max_length="255", label="Volume Name") description = forms.CharField(widget=forms.Textarea, label=_("Description"), required=False) size = forms.IntegerField(min_value=1, label="Size (GB)")
[docs] def handle(self, request, data): try: api.volume_create(request, data['size'], data['name'], data['description']) message = 'Creating volume "%s"' % data['name'] LOG.info(message) messages.info(request, message) except novaclient_exceptions.ClientException, e: LOG.exception("ClientException in CreateVolume") messages.error(request, _('Error Creating Volume: %s') % e.message) return shortcuts.redirect("horizon:nova:instances_and_volumes:index")
[docs]class AttachForm(forms.SelfHandlingForm): instance = forms.ChoiceField(label="Attach to Instance", help_text=_("Select an instance to " "attach to.")) device = forms.CharField(label="Device Name", initial="/dev/vdc") def __init__(self, *args, **kwargs): super(AttachForm, self).__init__(*args, **kwargs) # populate volume_id volume_id = kwargs.get('initial', {}).get('volume_id', []) self.fields['volume_id'] = forms.CharField(widget=forms.HiddenInput(), initial=volume_id) # Populate instance choices instance_list = kwargs.get('initial', {}).get('instances', []) instances = [] for instance in instance_list: if instance.status in ACTIVE_STATES: instances.append((instance.id, '%s (%s)' % (instance.name, instance.id))) if instances: instances.insert(0, ("", _("Select an instance"))) else: instances = (("", _("No instances available")),) self.fields['instance'].choices = instances
[docs] def handle(self, request, data): try: api.volume_attach(request, data['volume_id'], data['instance'], data['device']) vol_name = api.volume_get(request, data['volume_id']).display_name message = (_('Attaching volume %(vol)s to instance ' '%(inst)s at %(dev)s') % {"vol": vol_name, "inst": data['instance'], "dev": data['device']}) LOG.info(message) messages.info(request, message) except novaclient_exceptions.ClientException, e: LOG.exception("ClientException in AttachVolume") messages.error(request, _('Error attaching volume: %s') % e.message) return shortcuts.redirect( "horizon:nova:instances_and_volumes:index")
[docs]class CreateSnapshotForm(forms.SelfHandlingForm): name = forms.CharField(max_length="255", label=_("Snapshot Name")) description = forms.CharField(widget=forms.Textarea, label=_("Description"), required=False) def __init__(self, *args, **kwargs): super(CreateSnapshotForm, self).__init__(*args, **kwargs) # populate volume_id volume_id = kwargs.get('initial', {}).get('volume_id', []) self.fields['volume_id'] = forms.CharField(widget=forms.HiddenInput(), initial=volume_id)
[docs] def handle(self, request, data): try: api.volume_snapshot_create(request, data['volume_id'], data['name'], data['description']) message = _('Creating volume snapshot "%s"') % data['name'] LOG.info(message) messages.info(request, message) except: exceptions.handle(request, _('Error Creating Volume Snapshot: %(exc)s')) return shortcuts.redirect("horizon:nova:images_and_snapshots:index")