177 lines
7.3 KiB
Python
177 lines
7.3 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Views for managing backups.
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"""
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import operator
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from django.urls import reverse
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from django.utils.translation import gettext_lazy as _
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from horizon import exceptions
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from horizon import forms
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from horizon import messages
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from openstack_dashboard import api
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from openstack_dashboard.dashboards.project.containers \
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import utils as containers_utils
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class CreateBackupForm(forms.SelfHandlingForm):
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name = forms.CharField(max_length=255, label=_("Backup Name"))
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description = forms.CharField(widget=forms.Textarea(attrs={'rows': 4}),
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label=_("Description"),
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required=False)
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container_name = forms.CharField(
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max_length=255,
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label=_("Container Name"),
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validators=[containers_utils.no_slash_validator],
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required=False)
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volume_id = forms.CharField(widget=forms.HiddenInput())
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snapshot_id = forms.ThemableChoiceField(label=_("Backup Snapshot"),
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required=False)
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incremental = forms.BooleanField(
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label=_("Incremental"),
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required=False,
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help_text=_("By default, a backup is created as a full backup. "
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"Check this to do an incremental backup from latest "
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"backup. Only available if a prior backup exists."))
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def __init__(self, request, *args, **kwargs):
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super().__init__(request, *args, **kwargs)
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search_opts = {"volume_id": kwargs['initial']['volume_id'],
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"status": "available"}
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try:
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if not api.cinder.volume_backup_list(request,
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search_opts=search_opts):
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self.fields.pop('incremental')
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except Exception:
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# Do not include incremental if list of prior backups fails
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self.fields.pop('incremental')
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msg = _('Unable to retrieve volume backup list '
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'for volume "%s", so incremental '
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'backup is disabled.') % search_opts['volume_id']
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exceptions.handle(self.request, msg)
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if kwargs['initial'].get('snapshot_id'):
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snap_id = kwargs['initial']['snapshot_id']
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try:
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snapshot = api.cinder.volume_snapshot_get(request, snap_id)
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self.fields['snapshot_id'].choices = [(snapshot.id,
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snapshot.name)]
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self.fields['snapshot_id'].initial = snap_id
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except Exception:
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redirect = reverse('horizon:project:snapshots:index')
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exceptions.handle(request, _('Unable to fetch snapshot'),
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redirect=redirect)
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else:
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try:
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sop = {'volume_id': kwargs['initial']['volume_id']}
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snapshots = api.cinder.volume_snapshot_list(request,
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search_opts=sop)
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snapshots.sort(key=operator.attrgetter('id', 'created_at'))
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snapshotChoices = [[snapshot.id, snapshot.name]
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for snapshot in snapshots]
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if not snapshotChoices:
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snapshotChoices.insert(0, ('',
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_("No snapshot for this volume")))
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else:
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snapshotChoices.insert(
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0, ('',
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_("Select snapshot to backup (Optional)")))
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self.fields['snapshot_id'].choices = snapshotChoices
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except Exception:
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redirect = reverse('horizon:project:volumes:index')
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exceptions.handle(request, _('Unable to fetch snapshots'),
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redirect=redirect)
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def handle(self, request, data):
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try:
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volume = api.cinder.volume_get(request, data['volume_id'])
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snapshot_id = data['snapshot_id'] or None
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force = False
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incremental = data.get('incremental', False)
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if volume.status == 'in-use':
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force = True
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backup = api.cinder.volume_backup_create(
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request, data['volume_id'],
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data['container_name'], data['name'],
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data['description'], force=force,
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incremental=incremental,
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snapshot_id=snapshot_id
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)
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message = _('Creating volume backup "%s"') % data['name']
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messages.info(request, message)
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return backup
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except Exception:
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redirect = reverse('horizon:project:volumes:index')
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exceptions.handle(request,
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_('Unable to create volume backup.'),
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redirect=redirect)
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class RestoreBackupForm(forms.SelfHandlingForm):
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volume_id = forms.ThemableChoiceField(label=_('Select Volume'),
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required=False)
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backup_id = forms.CharField(widget=forms.HiddenInput())
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backup_name = forms.CharField(widget=forms.HiddenInput())
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redirect_url = 'horizon:project:backups:index'
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def __init__(self, request, *args, **kwargs):
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super().__init__(request, *args, **kwargs)
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try:
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search_opts = {'status': 'available'}
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volumes = api.cinder.volume_list(request, search_opts)
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except Exception:
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msg = _('Unable to lookup volume or backup information.')
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redirect = reverse(self.redirect_url)
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exceptions.handle(request, msg, redirect=redirect)
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raise exceptions.Http302(redirect)
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volumes.sort(key=operator.attrgetter('name', 'created_at'))
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choices = [('', _('Create a New Volume'))]
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choices.extend((volume.id, volume.name) for volume in volumes)
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self.fields['volume_id'].choices = choices
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def handle(self, request, data):
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backup_id = data['backup_id']
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backup_name = data['backup_name'] or None
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volume_id = data['volume_id'] or None
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try:
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restore = api.cinder.volume_backup_restore(request,
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backup_id,
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volume_id)
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# Needed for cases when a new volume is created.
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volume_id = restore.volume_id
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message = _('Request for restoring backup %(backup_name)s '
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'to volume with id: %(volume_id)s '
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'has been submitted.')
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messages.info(request, message % {'backup_name': backup_name,
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'volume_id': volume_id})
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return restore
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except Exception:
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msg = _('Unable to restore backup.')
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redirect = reverse(self.redirect_url)
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exceptions.handle(request, msg, redirect=redirect)
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