69 lines
2.8 KiB
Python
69 lines
2.8 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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from django.core.urlresolvers import reverse
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from django.utils.translation import ugettext_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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class EvacuateHostForm(forms.SelfHandlingForm):
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current_host = forms.CharField(label=_("Current Host"),
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widget=forms.TextInput(
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attrs={'readonly': 'readonly'}))
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target_host = forms.ChoiceField(label=_("Target Host"),
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help_text=_("Choose a Host to evacuate servers to."))
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on_shared_storage = forms.BooleanField(label=_("Shared Storage"),
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initial=False, required=False)
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def __init__(self, request, *args, **kwargs):
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super(EvacuateHostForm, self).__init__(request, *args, **kwargs)
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initial = kwargs.get('initial', {})
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self.fields['target_host'].choices = \
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self.populate_host_choices(request, initial)
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def populate_host_choices(self, request, initial):
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hosts = initial.get('hosts')
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current_host = initial.get('current_host')
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host_list = sorted([(host, host)
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for host in hosts
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if host != current_host])
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if host_list:
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host_list.insert(0, ("", _("Select a target host")))
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else:
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host_list.insert(0, ("", _("No other hosts available.")))
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return host_list
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def handle(self, request, data):
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try:
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current_host = data['current_host']
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target_host = data['target_host']
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on_shared_storage = data['on_shared_storage']
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api.nova.evacuate_host(request, current_host,
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target_host, on_shared_storage)
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msg = _('Starting evacuation from %(current)s to %(target)s.') % \
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{'current': current_host, 'target': target_host}
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messages.success(request, msg)
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return True
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except Exception:
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redirect = reverse('horizon:admin:hypervisors:index')
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msg = _('Failed to evacuate host: %s.') % data['current_host']
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exceptions.handle(request, message=msg, redirect=redirect)
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return False
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