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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# 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.
"""
Views for managing images.
"""
import logging
from django.conf import settings
from django.forms import ValidationError
from django.forms.widgets import HiddenInput
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from openstack_dashboard import api
LOG = logging.getLogger(__name__)
class CreateImageForm(forms.SelfHandlingForm):
name = forms.CharField(max_length="255", label=_("Name"), required=True)
description = forms.CharField(widget=forms.widgets.Textarea(),
label=_("Description"),
required=False)
source_type = forms.ChoiceField(
label=_('Image Source'),
choices=[('url', _('Image Location')),
('file', _('Image File'))],
widget=forms.Select(attrs={
'class': 'switchable',
'data-slug': 'source'}))
copy_from = forms.CharField(max_length="255",
label=_("Image Location"),
help_text=_("An external (HTTP) URL to load "
"the image from."),
widget=forms.TextInput(attrs={
'class': 'switched',
'data-switch-on': 'source',
'data-source-url': _('Image Location')}),
required=False)
image_file = forms.FileField(label=_("Image File"),
help_text=("A local image to upload."),
widget=forms.FileInput(attrs={
'class': 'switched',
'data-switch-on': 'source',
'data-source-file': _('Image File')}),
required=False)
disk_format = forms.ChoiceField(label=_('Format'),
required=True,
choices=[('', ''),
('aki',
_('AKI - Amazon Kernel '
'Image')),
('ami',
_('AMI - Amazon Machine '
'Image')),
('ari',
_('ARI - Amazon Ramdisk '
'Image')),
('iso',
_('ISO - Optical Disk Image')),
('qcow2',
_('QCOW2 - QEMU Emulator')),
('raw', 'Raw'),
('vdi', 'VDI'),
('vhd', 'VHD'),
('vmdk', 'VMDK')],
widget=forms.Select(attrs={'class':
'switchable'}))
minimum_disk = forms.IntegerField(label=_("Minimum Disk (GB)"),
help_text=_('The minimum disk size'
' required to boot the'
' image. If unspecified, this'
' value defaults to 0'
' (no minimum).'),
required=False)
minimum_ram = forms.IntegerField(label=_("Minimum Ram (MB)"),
help_text=_('The minimum disk size'
' required to boot the'
' image. If unspecified, this'
' value defaults to 0 (no'
' minimum).'),
required=False)
is_public = forms.BooleanField(label=_("Public"), required=False)
protected = forms.BooleanField(label=_("Protected"), required=False)
def __init__(self, *args, **kwargs):
super(CreateImageForm, self).__init__(*args, **kwargs)
if not settings.HORIZON_IMAGES_ALLOW_UPLOAD:
self.fields['image_file'].widget = HiddenInput()
def clean(self):
data = super(CreateImageForm, self).clean()
if not data['copy_from'] and not data['image_file']:
raise ValidationError(
_("A image or external image location must be specified."))
elif data['copy_from'] and data['image_file']:
raise ValidationError(
_("Can not specify both image and external image location."))
else:
return data
def handle(self, request, data):
# Glance does not really do anything with container_format at the
# moment. It requires it is set to the same disk_format for the three
# Amazon image types, otherwise it just treats them as 'bare.' As such
# we will just set that to be that here instead of bothering the user
# with asking them for information we can already determine.
if data['disk_format'] in ('ami', 'aki', 'ari',):
container_format = data['disk_format']
else:
container_format = 'bare'
meta = {'is_public': data['is_public'],
'protected': data['protected'],
'disk_format': data['disk_format'],
'container_format': container_format,
'min_disk': (data['minimum_disk'] or 0),
'min_ram': (data['minimum_ram'] or 0),
'name': data['name'],
'properties': {}}
if data['description']:
meta['properties']['description'] = data['description']
if settings.HORIZON_IMAGES_ALLOW_UPLOAD and data['image_file']:
meta['data'] = self.files['image_file']
else:
meta['copy_from'] = data['copy_from']
try:
image = api.glance.image_create(request, **meta)
messages.success(request,
_('Your image %s has been queued for creation.' %
data['name']))
return image
except:
exceptions.handle(request, _('Unable to create new image.'))
class UpdateImageForm(forms.SelfHandlingForm):
image_id = forms.CharField(widget=forms.HiddenInput())
name = forms.CharField(max_length="255", label=_("Name"))
description = forms.CharField(widget=forms.widgets.Textarea(),
label=_("Description"),
required=False)
kernel = forms.CharField(max_length="36", label=_("Kernel ID"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}
))
ramdisk = forms.CharField(max_length="36", label=_("Ramdisk ID"),
required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}
))
architecture = forms.CharField(label=_("Architecture"), required=False,
widget=forms.TextInput(
attrs={'readonly': 'readonly'}
))
disk_format = forms.CharField(label=_("Format"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}
))
public = forms.BooleanField(label=_("Public"), required=False)
protected = forms.BooleanField(label=_("Protected"), required=False)
def handle(self, request, data):
image_id = data['image_id']
error_updating = _('Unable to update image "%s".')
if data['disk_format'] in ['aki', 'ari', 'ami']:
container_format = data['disk_format']
else:
container_format = 'bare'
meta = {'is_public': data['public'],
'protected': data['protected'],
'disk_format': data['disk_format'],
'container_format': container_format,
'name': data['name'],
'properties': {}}
if data['description']:
meta['properties']['description'] = data['description']
if data['kernel']:
meta['properties']['kernel_id'] = data['kernel']
if data['ramdisk']:
meta['properties']['ramdisk_id'] = data['ramdisk']
if data['architecture']:
meta['properties']['architecture'] = data['architecture']
# Ensure we do not delete properties that have already been
# set on an image.
meta['purge_props'] = False
try:
image = api.glance.image_update(request, image_id, **meta)
messages.success(request, _('Image was successfully updated.'))
return image
except:
exceptions.handle(request, error_updating % image_id)
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