# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2013, Mirantis 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.
#
# @author: Tatiana Mazur
import logging
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 openstack_dashboard import api
LOG = logging.getLogger(__name__)
[docs]class UpdatePool(forms.SelfHandlingForm):
name = forms.CharField(max_length=80, label=_("Name"))
pool_id = forms.CharField(label=_("ID"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
description = forms.CharField(required=False,
max_length=80, label=_("Description"))
lb_method = forms.ChoiceField(label=_("Load Balancing Method"))
admin_state_up = forms.BooleanField(label=_("Admin State"), required=False)
failure_url = 'horizon:project:loadbalancers:index'
def __init__(self, request, *args, **kwargs):
super(UpdatePool, self).__init__(request, *args, **kwargs)
lb_method_choices = [('ROUND_ROBIN', 'ROUND_ROBIN'),
('LEAST_CONNECTIONS', 'LEAST_CONNECTIONS'),
('SOURCE_IP', 'SOURCE_IP')]
self.fields['lb_method'].choices = lb_method_choices
[docs] def handle(self, request, context):
try:
data = {'pool': {'name': context['name'],
'description': context['description'],
'lb_method': context['lb_method'],
'admin_state_up': context['admin_state_up'],
}}
pool = api.lbaas.pool_update(request, context['pool_id'], **data)
msg = _('Pool %s was successfully updated.') % context['name']
LOG.debug(msg)
messages.success(request, msg)
return pool
except Exception:
msg = _('Failed to update pool %s') % context['name']
LOG.info(msg)
redirect = reverse(self.failure_url)
exceptions.handle(request, msg, redirect=redirect)
[docs]class UpdateVip(forms.SelfHandlingForm):
name = forms.CharField(max_length=80, label=_("Name"))
vip_id = forms.CharField(label=_("ID"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
description = forms.CharField(required=False,
max_length=80, label=_("Description"))
pool_id = forms.ChoiceField(label=_("Pool"))
session_persistence = forms.ChoiceField(
required=False, initial={}, label=_("Session Persistence"))
cookie_name = forms.CharField(
initial="", required=False,
max_length=80, label=_("Cookie Name"),
help_text=_("Required for APP_COOKIE persistence;"
" Ignored otherwise."))
connection_limit = forms.IntegerField(
min_value=-1, label=_("Connection Limit"),
help_text=_("Maximum number of connections allowed "
"for the VIP or '-1' if the limit is not set"))
admin_state_up = forms.BooleanField(label=_("Admin State"), required=False)
failure_url = 'horizon:project:loadbalancers:index'
def __init__(self, request, *args, **kwargs):
super(UpdateVip, self).__init__(request, *args, **kwargs)
pool_id_choices = []
try:
tenant_id = request.user.tenant_id
pools = api.lbaas.pool_list(request, tenant_id=tenant_id)
except Exception:
pools = []
exceptions.handle(request,
_('Unable to retrieve pools list.'))
pools = sorted(pools,
key=lambda pool: pool.name)
for p in pools:
if (p.vip_id is None) or (p.id == kwargs['initial']['pool_id']):
pool_id_choices.append((p.id, p.name))
self.fields['pool_id'].choices = pool_id_choices
session_persistence_choices = []
for mode in ('SOURCE_IP', 'HTTP_COOKIE', 'APP_COOKIE'):
session_persistence_choices.append((mode, mode))
session_persistence_choices.append(('', _('No session persistence')))
self.fields[
'session_persistence'].choices = session_persistence_choices
[docs] def clean(self):
cleaned_data = super(UpdateVip, self).clean()
persistence = cleaned_data.get('session_persistence')
if (persistence == 'APP_COOKIE' and
not cleaned_data.get('cookie_name')):
msg = _('Cookie name is required for APP_COOKIE persistence.')
self._errors['cookie_name'] = self.error_class([msg])
return cleaned_data
[docs] def handle(self, request, context):
if context['session_persistence']:
stype = context['session_persistence']
if stype == 'APP_COOKIE':
cookie = context['cookie_name']
context['session_persistence'] = {'type': stype,
'cookie_name': cookie}
else:
context['session_persistence'] = {'type': stype}
else:
context['session_persistence'] = {}
try:
data = {'vip': {'name': context['name'],
'description': context['description'],
'pool_id': context['pool_id'],
'session_persistence':
context['session_persistence'],
'connection_limit': context['connection_limit'],
'admin_state_up': context['admin_state_up'],
}}
vip = api.lbaas.vip_update(request, context['vip_id'], **data)
msg = _('VIP %s was successfully updated.') % context['name']
LOG.debug(msg)
messages.success(request, msg)
return vip
except Exception:
msg = _('Failed to update VIP %s') % context['name']
LOG.info(msg)
redirect = reverse(self.failure_url)
exceptions.handle(request, msg, redirect=redirect)
[docs]class UpdateMember(forms.SelfHandlingForm):
member_id = forms.CharField(label=_("ID"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
pool_id = forms.ChoiceField(label=_("Pool"))
weight = forms.IntegerField(max_value=256, min_value=0, label=_("Weight"),
help_text=_("Relative part of requests this "
"pool member serves compared to others"))
admin_state_up = forms.BooleanField(label=_("Admin State"), required=False)
failure_url = 'horizon:project:loadbalancers:index'
def __init__(self, request, *args, **kwargs):
super(UpdateMember, self).__init__(request, *args, **kwargs)
pool_id_choices = []
try:
tenant_id = request.user.tenant_id
pools = api.lbaas.pool_list(request, tenant_id=tenant_id)
except Exception:
pools = []
exceptions.handle(request,
_('Unable to retrieve pools list.'))
pools = sorted(pools,
key=lambda pool: pool.name)
for p in pools:
pool_id_choices.append((p.id, p.name))
self.fields['pool_id'].choices = pool_id_choices
[docs] def handle(self, request, context):
try:
data = {'member': {'pool_id': context['pool_id'],
'weight': context['weight'],
'admin_state_up': context['admin_state_up']}}
member = api.lbaas.member_update(request,
context['member_id'], **data)
msg = _('Member %s was successfully updated.')\
% context['member_id']
LOG.debug(msg)
messages.success(request, msg)
return member
except Exception:
msg = _('Failed to update member %s') % context['member_id']
LOG.info(msg)
redirect = reverse(self.failure_url)
exceptions.handle(request, msg, redirect=redirect)
[docs]class UpdateMonitor(forms.SelfHandlingForm):
monitor_id = forms.CharField(label=_("ID"),
widget=forms.TextInput(
attrs={'readonly': 'readonly'}))
delay = forms.IntegerField(
min_value=1,
label=_("Delay"),
help_text=_("The minimum time in seconds between regular checks "
"of a member"))
timeout = forms.IntegerField(
min_value=1,
label=_("Timeout"),
help_text=_("The maximum time in seconds for a monitor to wait "
"for a reply"))
max_retries = forms.IntegerField(
max_value=10, min_value=1,
label=_("Max Retries (1~10)"),
help_text=_("Number of permissible failures before changing "
"the status of member to inactive"))
admin_state_up = forms.BooleanField(label=_("Admin State"), required=False)
failure_url = 'horizon:project:loadbalancers:index'
def __init__(self, request, *args, **kwargs):
super(UpdateMonitor, self).__init__(request, *args, **kwargs)
[docs] def handle(self, request, context):
try:
data = {'health_monitor': {
'delay': context['delay'],
'timeout': context['timeout'],
'max_retries': context['max_retries'],
'admin_state_up': context['admin_state_up']}}
monitor = api.lbaas.pool_health_monitor_update(request,
context['monitor_id'], **data)
msg = _('Health monitor %s was successfully updated.')\
% context['monitor_id']
LOG.debug(msg)
messages.success(request, msg)
return monitor
except Exception:
msg = _('Failed to update health monitor %s')\
% context['monitor_id']
LOG.info(msg)
redirect = reverse(self.failure_url)
exceptions.handle(request, msg, redirect=redirect)