# 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.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import workflows
from openstack_dashboard import api
[docs]class CreateFlavorInfoAction(workflows.Action):
_flavor_id_regex = (r'^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-'
r'[0-9a-fA-F]{4}-[0-9a-fA-F]{12}|[0-9]+|auto$')
_flavor_id_help_text = _("Flavor ID should be UUID4 or integer. "
"Leave this field blank or use 'auto' to set "
"a random UUID4.")
name = forms.RegexField(
label=_("Name"),
max_length=255,
regex=r'^[\w\.\- ]+$',
error_messages={'invalid': _('Name may only contain letters, numbers, '
'underscores, periods and hyphens.')})
flavor_id = forms.RegexField(label=_("ID"),
regex=_flavor_id_regex,
required=False,
initial='auto',
help_text=_flavor_id_help_text)
vcpus = forms.IntegerField(label=_("VCPUs"),
min_value=1)
memory_mb = forms.IntegerField(label=_("RAM (MB)"),
min_value=1)
disk_gb = forms.IntegerField(label=_("Root Disk (GB)"),
min_value=0)
eph_gb = forms.IntegerField(label=_("Ephemeral Disk (GB)"),
required=False,
initial=0,
min_value=0)
swap_mb = forms.IntegerField(label=_("Swap Disk (MB)"),
required=False,
initial=0,
min_value=0)
rxtx_factor = forms.FloatField(label=_("RX/TX Factor"),
required=False,
initial=1,
min_value=1)
class Meta(object):
name = _("Flavor Information")
help_text = _("Flavors define the sizes for RAM, disk, number of "
"cores, and other resources and can be selected when "
"users deploy instances.")
[docs] def clean(self):
cleaned_data = super(CreateFlavorInfoAction, self).clean()
name = cleaned_data.get('name')
flavor_id = cleaned_data.get('flavor_id')
if name and name.isspace():
msg = _('Flavor name cannot be empty.')
self._errors['name'] = self.error_class([msg])
try:
flavors = api.nova.flavor_list(self.request, None)
except Exception:
flavors = []
msg = _('Unable to get flavor list')
exceptions.check_message(["Connection", "refused"], msg)
raise
if flavors is not None and name is not None:
for flavor in flavors:
if flavor.name.lower() == name.lower():
error_msg = _('The name "%s" is already used by '
'another flavor.') % name
self._errors['name'] = self.error_class([error_msg])
if flavor.id == flavor_id:
error_msg = _('The ID "%s" is already used by '
'another flavor.') % flavor_id
self._errors['flavor_id'] = self.error_class([error_msg])
return cleaned_data
[docs]class CreateFlavorInfo(workflows.Step):
action_class = CreateFlavorInfoAction
contributes = ("flavor_id",
"name",
"vcpus",
"memory_mb",
"disk_gb",
"eph_gb",
"swap_mb",
"rxtx_factor")
[docs]class UpdateFlavorAccessAction(workflows.MembershipAction):
def __init__(self, request, *args, **kwargs):
super(UpdateFlavorAccessAction, self).__init__(request,
*args,
**kwargs)
err_msg = _('Unable to retrieve flavor access list. '
'Please try again later.')
context = args[0]
default_role_field_name = self.get_default_role_field_name()
self.fields[default_role_field_name] = forms.CharField(required=False)
self.fields[default_role_field_name].initial = 'member'
field_name = self.get_member_field_name('member')
self.fields[field_name] = forms.MultipleChoiceField(required=False)
# Get list of available projects.
all_projects = []
try:
all_projects, has_more = api.keystone.tenant_list(request)
except Exception:
exceptions.handle(request, err_msg)
projects_list = [(project.id, project.name)
for project in all_projects]
self.fields[field_name].choices = projects_list
# If we have a POST from the CreateFlavor workflow, the flavor id
# isn't an existing flavor. For the UpdateFlavor case, we don't care
# about the access list for the current flavor anymore as we're about
# to replace it.
if request.method == 'POST':
return
# Get list of flavor projects if the flavor is not public.
flavor_id = context.get('flavor_id')
flavor_access = []
try:
if flavor_id:
flavor = api.nova.flavor_get(request, flavor_id)
if not flavor.is_public:
flavor_access = [project.tenant_id for project in
api.nova.flavor_access_list(request,
flavor_id)]
except Exception:
exceptions.handle(request, err_msg)
self.fields[field_name].initial = flavor_access
class Meta(object):
name = _("Flavor Access")
slug = "update_flavor_access"
[docs]class UpdateFlavorAccess(workflows.UpdateMembersStep):
action_class = UpdateFlavorAccessAction
help_text = _("Select the projects where the flavors will be used. If no "
"projects are selected, then the flavor will be available "
"in all projects.")
available_list_title = _("All Projects")
members_list_title = _("Selected Projects")
no_available_text = _("No projects found.")
no_members_text = _("No projects selected. "
"All projects can use the flavor.")
show_roles = False
depends_on = ("flavor_id",)
contributes = ("flavor_access",)
[docs] def contribute(self, data, context):
if data:
member_field_name = self.get_member_field_name('member')
context['flavor_access'] = data.get(member_field_name, [])
return context
[docs]class CreateFlavor(workflows.Workflow):
slug = "create_flavor"
name = _("Create Flavor")
finalize_button_name = _("Create Flavor")
success_message = _('Created new flavor "%s".')
failure_message = _('Unable to create flavor "%s".')
success_url = "horizon:admin:flavors:index"
default_steps = (CreateFlavorInfo,
UpdateFlavorAccess)
[docs] def handle(self, request, data):
flavor_id = data.get('flavor_id') or 'auto'
swap = data.get('swap_mb') or 0
ephemeral = data.get('eph_gb') or 0
flavor_access = data['flavor_access']
is_public = not flavor_access
rxtx_factor = data.get('rxtx_factor') or 1
# Create the flavor
try:
self.object = api.nova.flavor_create(request,
name=data['name'],
memory=data['memory_mb'],
vcpu=data['vcpus'],
disk=data['disk_gb'],
ephemeral=ephemeral,
swap=swap,
flavorid=flavor_id,
is_public=is_public,
rxtx_factor=rxtx_factor)
except Exception:
exceptions.handle(request, _('Unable to create flavor.'))
return False
# Update flavor access if the new flavor is not public
flavor_id = self.object.id
for project in flavor_access:
try:
api.nova.add_tenant_to_flavor(
request, flavor_id, project)
except Exception:
exceptions.handle(
request,
_('Unable to set flavor access for project %s.') % project)
return True
[docs]class UpdateFlavorInfoAction(CreateFlavorInfoAction):
flavor_id = forms.CharField(widget=forms.widgets.HiddenInput)
class Meta(object):
name = _("Flavor Information")
slug = 'update_info'
help_text = _("Edit the flavor details. Flavors define the sizes for "
"RAM, disk, number of cores, and other resources. "
"Flavors are selected when users deploy instances.")
[docs] def clean(self):
name = self.cleaned_data.get('name')
flavor_id = self.cleaned_data.get('flavor_id')
try:
flavors = api.nova.flavor_list(self.request, None)
except Exception:
flavors = []
msg = _('Unable to get flavor list')
exceptions.check_message(["Connection", "refused"], msg)
raise
# Check if there is no flavor with the same name
if flavors is not None and name is not None:
for flavor in flavors:
if (flavor.name.lower() == name.lower() and
flavor.id != flavor_id):
error_msg = _('The name "%s" is already used by '
'another flavor.') % name
self._errors['name'] = self.error_class([error_msg])
return self.cleaned_data
[docs]class UpdateFlavorInfo(workflows.Step):
action_class = UpdateFlavorInfoAction
depends_on = ("flavor_id",)
contributes = ("name",
"vcpus",
"memory_mb",
"disk_gb",
"eph_gb",
"swap_mb",
"rxtx_factor")
[docs]class UpdateFlavor(workflows.Workflow):
slug = "update_flavor"
name = _("Edit Flavor")
finalize_button_name = _("Save")
success_message = _('Modified flavor "%s".')
failure_message = _('Unable to modify flavor "%s".')
success_url = "horizon:admin:flavors:index"
default_steps = (UpdateFlavorInfo,
UpdateFlavorAccess)
[docs] def handle(self, request, data):
flavor_projects = data["flavor_access"]
is_public = not flavor_projects
# Update flavor information
try:
flavor_id = data['flavor_id']
# Grab any existing extra specs, because flavor edit is currently
# implemented as a delete followed by a create.
extras_dict = api.nova.flavor_get_extras(self.request,
flavor_id,
raw=True)
# Mark the existing flavor as deleted.
api.nova.flavor_delete(request, flavor_id)
# Then create a new flavor with the same name but a new ID.
# This is in the same try/except block as the delete call
# because if the delete fails the API will error out because
# active flavors can't have the same name.
flavor = api.nova.flavor_create(request,
data['name'],
data['memory_mb'],
data['vcpus'],
data['disk_gb'],
ephemeral=data['eph_gb'],
swap=data['swap_mb'],
is_public=is_public,
rxtx_factor=data['rxtx_factor'])
if (extras_dict):
api.nova.flavor_extra_set(request, flavor.id, extras_dict)
except Exception:
exceptions.handle(request, ignore=True)
return False
# Add flavor access if the flavor is not public.
for project in flavor_projects:
try:
api.nova.add_tenant_to_flavor(request, flavor.id, project)
except Exception:
exceptions.handle(request, _('Modified flavor information, '
'but unable to modify flavor '
'access.'))
return True