626 lines
25 KiB
Python
626 lines
25 KiB
Python
# Copyright 2013 Rackspace Hosting
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#
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# 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.conf import settings
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from django.urls 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.utils import memoized
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from horizon import workflows
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from openstack_dashboard import api as dash_api
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from openstack_dashboard.dashboards.project.instances \
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import utils as instance_utils
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from openstack_dashboard.dashboards.project.instances.workflows \
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import create_instance as dash_create_instance
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from oslo_log import log as logging
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from trove_dashboard import api
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from trove_dashboard.utils import common as common_utils
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LOG = logging.getLogger(__name__)
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def parse_datastore_and_version_text(datastore_and_version):
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if datastore_and_version:
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datastore, datastore_version = datastore_and_version.split('-', 1)
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return datastore.strip(), datastore_version.strip()
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return None, None
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class SetInstanceDetailsAction(workflows.Action):
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availability_zone = forms.ChoiceField(
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label=_("Availability Zone"),
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required=False)
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name = forms.CharField(max_length=80, label=_("Instance Name"))
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volume = forms.IntegerField(label=_("Volume Size"),
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min_value=0,
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initial=1,
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help_text=_("Size of the volume in GB."))
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volume_type = forms.ChoiceField(
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label=_("Volume Type"),
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required=False,
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help_text=_("Applicable only if the volume size is specified."))
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datastore = forms.ChoiceField(
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label=_("Datastore"),
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help_text=_("Type and version of datastore."),
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widget=forms.Select(attrs={
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'class': 'switchable',
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'data-slug': 'datastore'
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}))
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def __init__(self, request, *args, **kwargs):
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if args:
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self.backup_id = args[0].get('backup', None)
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else:
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self.backup_id = None
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super(SetInstanceDetailsAction, self).__init__(request,
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*args,
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**kwargs)
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# Add this field to the end after the dynamic fields
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self.fields['locality'] = forms.ChoiceField(
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label=_("Locality"),
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choices=[("", "None"),
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("affinity", "affinity"),
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("anti-affinity", "anti-affinity")],
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required=False,
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help_text=_("Specify whether future replicated instances will "
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"be created on the same hypervisor (affinity) or on "
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"different hypervisors (anti-affinity). "
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"This value is ignored if the instance to be "
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"launched is a replica.")
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)
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class Meta(object):
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name = _("Details")
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help_text_template = "project/databases/_launch_details_help.html"
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def clean(self):
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datastore_and_version = self.data.get("datastore", None)
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if not datastore_and_version:
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msg = _("You must select a datastore type and version.")
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self._errors["datastore"] = self.error_class([msg])
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else:
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datastore, datastore_version = parse_datastore_and_version_text(
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common_utils.unhexlify(datastore_and_version))
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field_name = self._build_flavor_field_name(datastore,
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datastore_version)
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flavor = self.data.get(field_name, None)
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if not flavor:
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msg = _("You must select a flavor.")
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self._errors[field_name] = self.error_class([msg])
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if not self.data.get("locality", None):
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self.cleaned_data["locality"] = None
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return self.cleaned_data
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def handle(self, request, context):
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datastore_and_version = context["datastore"]
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if datastore_and_version:
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datastore, datastore_version = parse_datastore_and_version_text(
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common_utils.unhexlify(context["datastore"]))
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field_name = self._build_flavor_field_name(datastore,
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datastore_version)
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flavor = self.data[field_name]
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if flavor:
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context["flavor"] = flavor
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return context
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return None
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@memoized.memoized_method
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def availability_zones(self, request):
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try:
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return dash_api.nova.availability_zone_list(request)
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except Exception:
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LOG.exception("Exception while obtaining availablity zones")
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self._availability_zones = []
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def populate_availability_zone_choices(self, request, context):
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try:
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zones = self.availability_zones(request)
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except Exception:
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zones = []
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redirect = reverse('horizon:project:databases:index')
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exceptions.handle(request,
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_('Unable to retrieve availability zones.'),
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redirect=redirect)
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zone_list = [(zone.zoneName, zone.zoneName)
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for zone in zones if zone.zoneState['available']]
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zone_list.sort()
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if not zone_list:
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zone_list.insert(0, ("", _("No availability zones found")))
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elif len(zone_list) > 1:
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zone_list.insert(0, ("", _("Any Availability Zone")))
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return zone_list
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@memoized.memoized_method
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def datastore_flavors(self, request, datastore_name, datastore_version):
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try:
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return api.trove.datastore_flavors(
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request, datastore_name, datastore_version)
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except Exception:
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LOG.exception("Exception while obtaining flavors list")
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redirect = reverse("horizon:project:databases:index")
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exceptions.handle(request,
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_('Unable to obtain flavors.'),
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redirect=redirect)
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@memoized.memoized_method
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def populate_volume_type_choices(self, request, context):
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try:
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volume_types = dash_api.cinder.volume_type_list(request)
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return ([("no_type", _("No volume type"))] +
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[(type.name, type.name)
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for type in volume_types])
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except Exception:
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LOG.exception("Exception while obtaining volume types list")
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self._volume_types = []
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@memoized.memoized_method
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def datastores(self, request):
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try:
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return api.trove.datastore_list(request)
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except Exception:
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LOG.exception("Exception while obtaining datastores list")
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self._datastores = []
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@memoized.memoized_method
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def datastore_versions(self, request, datastore):
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try:
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return api.trove.datastore_version_list(request, datastore)
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except Exception:
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LOG.exception("Exception while obtaining datastore version list")
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self._datastore_versions = []
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@memoized.memoized_method
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def get_backup(self, request, backup_id):
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try:
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return api.trove.backup_get(request, backup_id)
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except Exception:
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LOG.exception("Exception while obtaining backup information")
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return None
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def populate_datastore_choices(self, request, context):
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choices = ()
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datastores = self.datastores(request)
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if datastores is not None:
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if self.backup_id:
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backup = self.get_backup(request, self.backup_id)
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for ds in datastores:
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if self.backup_id:
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if ds.name != backup.datastore['type']:
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continue
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versions = self.datastore_versions(request, ds.name)
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if versions:
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# only add to choices if datastore has at least one version
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version_choices = ()
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for v in versions:
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# NOTE(zhaochao): please refer to the comment about
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# the same change for 'populate_datastore_choices'
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# of 'LaunchForm' in
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# trove_dashboard/content/database_clusters/forms.py
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# for details.
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if not v.to_dict().get('active', True):
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continue
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if self.backup_id:
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if v.id != backup.datastore['version_id']:
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continue
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selection_text = self._build_datastore_display_text(
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ds.name, v.name)
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widget_text = self._build_widget_field_name(
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ds.name, v.name)
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version_choices = (version_choices +
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((widget_text, selection_text),))
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self._add_datastore_flavor_field(request,
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ds.name,
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v.name)
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choices = choices + version_choices
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return choices
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def _add_datastore_flavor_field(self,
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request,
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datastore,
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datastore_version):
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name = self._build_widget_field_name(datastore, datastore_version)
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attr_key = 'data-datastore-' + name
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field_name = self._build_flavor_field_name(datastore,
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datastore_version)
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self.fields[field_name] = forms.ChoiceField(
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label=_("Flavor"),
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help_text=_("Size of image to launch."),
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required=False,
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widget=forms.Select(attrs={
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'class': 'switched',
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'data-switch-on': 'datastore',
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attr_key: _("Flavor")
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}))
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valid_flavors = self.datastore_flavors(request,
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datastore,
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datastore_version)
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if valid_flavors:
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self.fields[field_name].choices = instance_utils.sort_flavor_list(
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request, valid_flavors)
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def _build_datastore_display_text(self, datastore, datastore_version):
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return datastore + ' - ' + datastore_version
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def _build_widget_field_name(self, datastore, datastore_version):
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# Since the fieldnames cannot contain an uppercase character
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# we generate a hex encoded string representation of the
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# datastore and version as the fieldname
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return common_utils.hexlify(
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self._build_datastore_display_text(datastore, datastore_version))
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def _build_flavor_field_name(self, datastore, datastore_version):
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return self._build_widget_field_name(datastore,
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datastore_version)
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TROVE_ADD_USER_PERMS = getattr(settings, 'TROVE_ADD_USER_PERMS', [])
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TROVE_ADD_DATABASE_PERMS = getattr(settings, 'TROVE_ADD_DATABASE_PERMS', [])
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TROVE_ADD_PERMS = TROVE_ADD_USER_PERMS + TROVE_ADD_DATABASE_PERMS
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class SetInstanceDetails(workflows.Step):
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action_class = SetInstanceDetailsAction
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contributes = ("name", "volume", "volume_type", "flavor", "datastore",
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"locality", "availability_zone")
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class AddDatabasesAction(workflows.Action):
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"""Initialize the database with users/databases. This tab will honor
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the settings which should be a list of permissions required:
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* TROVE_ADD_USER_PERMS = []
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* TROVE_ADD_DATABASE_PERMS = []
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"""
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databases = forms.CharField(label=_('Initial Databases'),
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required=False,
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help_text=_('Comma separated list of '
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'databases to create'))
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user = forms.CharField(label=_('Initial Admin User'),
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required=False,
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help_text=_("Initial admin user to add"))
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password = forms.CharField(widget=forms.PasswordInput(),
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label=_("Password"),
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required=False)
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host = forms.CharField(label=_("Allowed Host (optional)"),
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required=False,
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help_text=_("Host or IP that the user is allowed "
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"to connect through."))
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class Meta(object):
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name = _("Initialize Databases")
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permissions = TROVE_ADD_PERMS
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help_text_template = "project/databases/_launch_initialize_help.html"
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def clean(self):
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cleaned_data = super(AddDatabasesAction, self).clean()
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if cleaned_data.get('user'):
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if not cleaned_data.get('password'):
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msg = _('You must specify a password if you create a user.')
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self._errors["password"] = self.error_class([msg])
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if not cleaned_data.get('databases'):
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msg = _('You must specify at least one database if '
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'you create a user.')
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self._errors["databases"] = self.error_class([msg])
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return cleaned_data
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class InitializeDatabase(workflows.Step):
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action_class = AddDatabasesAction
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contributes = ["databases", 'user', 'password', 'host']
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class AdvancedAction(workflows.Action):
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config = forms.ChoiceField(
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label=_("Configuration Group"),
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required=False,
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help_text=_('Select a configuration group'))
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initial_state = forms.ChoiceField(
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label=_('Source for Initial State'),
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required=False,
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help_text=_("Choose initial state."),
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choices=[
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('', _('None')),
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('backup', _('Restore from Backup')),
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('master', _('Replicate from Instance'))],
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widget=forms.Select(attrs={
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'class': 'switchable',
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'data-slug': 'initial_state'
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}))
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backup = forms.ChoiceField(
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label=_('Backup Name'),
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required=False,
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help_text=_('Select a backup to restore'),
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widget=forms.Select(attrs={
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'class': 'switched',
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'data-switch-on': 'initial_state',
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'data-initial_state-backup': _('Backup Name')
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}))
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master = forms.ChoiceField(
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label=_('Master Instance Name'),
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required=False,
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help_text=_('Select a master instance'),
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widget=forms.Select(attrs={
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'class': 'switched',
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'data-switch-on': 'initial_state',
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'data-initial_state-master': _('Master Instance Name')
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}))
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replica_count = forms.IntegerField(
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label=_('Replica Count'),
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required=False,
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min_value=1,
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initial=1,
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help_text=_('Specify the number of replicas to be created'),
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widget=forms.TextInput(attrs={
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'class': 'switched',
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'data-switch-on': 'initial_state',
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'data-initial_state-master': _('Replica Count')
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}))
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def __init__(self, request, *args, **kwargs):
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if args[0]:
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self.backup_id = args[0].get('backup', None)
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else:
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self.backup_id = None
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super(AdvancedAction, self).__init__(request, *args, **kwargs)
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if self.backup_id:
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self.fields['initial_state'].choices = [('backup',
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_('Restore from Backup'))]
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class Meta(object):
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name = _("Advanced")
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help_text_template = "project/databases/_launch_advanced_help.html"
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def populate_config_choices(self, request, context):
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try:
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configs = api.trove.configuration_list(request)
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config_name = "%(name)s (%(datastore)s - %(version)s)"
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choices = [(c.id,
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config_name % {'name': c.name,
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'datastore': c.datastore_name,
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'version': c.datastore_version_name})
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for c in configs]
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except Exception:
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choices = []
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if choices:
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choices.insert(0, ("", _("Select configuration")))
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else:
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choices.insert(0, ("", _("No configurations available")))
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return choices
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def populate_backup_choices(self, request, context):
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try:
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choices = []
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backups = api.trove.backup_list(request)
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for b in backups:
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if self.backup_id and b.id != self.backup_id:
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continue
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if b.status == 'COMPLETED':
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choices.append((b.id, b.name))
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except Exception:
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choices = []
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if choices:
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choices.insert(0, ("", _("Select backup")))
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else:
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choices.insert(0, ("", _("No backups available")))
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return choices
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def _get_instances(self):
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instances = []
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try:
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instances = api.trove.instance_list_all(self.request)
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except Exception:
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msg = _('Unable to retrieve database instances.')
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exceptions.handle(self.request, msg)
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return instances
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def populate_master_choices(self, request, context):
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try:
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instances = self._get_instances()
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choices = sorted([(i.id, i.name) for i in
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instances if i.status == 'ACTIVE'],
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key=lambda i: i[1])
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except Exception:
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choices = []
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if choices:
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choices.insert(0, ("", _("Select instance")))
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else:
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choices.insert(0, ("", _("No instances available")))
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return choices
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def clean(self):
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cleaned_data = super(AdvancedAction, self).clean()
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config = self.cleaned_data['config']
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if config:
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try:
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# Make sure the user is not "hacking" the form
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# and that they have access to this configuration
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cfg = api.trove.configuration_get(self.request, config)
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self.cleaned_data['config'] = cfg.id
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except Exception:
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raise forms.ValidationError(_("Unable to find configuration "
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"group!"))
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else:
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self.cleaned_data['config'] = None
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initial_state = cleaned_data.get("initial_state")
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if initial_state == 'backup':
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cleaned_data['replica_count'] = None
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backup = self.cleaned_data['backup']
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if backup:
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try:
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bkup = api.trove.backup_get(self.request, backup)
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self.cleaned_data['backup'] = bkup.id
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except Exception:
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raise forms.ValidationError(_("Unable to find backup!"))
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else:
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raise forms.ValidationError(_("A backup must be selected!"))
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cleaned_data['master'] = None
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elif initial_state == 'master':
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master = self.cleaned_data['master']
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if master:
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try:
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api.trove.instance_get(self.request, master)
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except Exception:
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raise forms.ValidationError(
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_("Unable to find master instance!"))
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else:
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raise forms.ValidationError(
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_("A master instance must be selected!"))
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cleaned_data['backup'] = None
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else:
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cleaned_data['master'] = None
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cleaned_data['backup'] = None
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cleaned_data['replica_count'] = None
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|
|
return cleaned_data
|
|
|
|
|
|
class Advanced(workflows.Step):
|
|
action_class = AdvancedAction
|
|
contributes = ['config', 'backup', 'master', 'replica_count']
|
|
|
|
|
|
class LaunchInstance(workflows.Workflow):
|
|
slug = "launch_instance"
|
|
name = _("Launch Instance")
|
|
finalize_button_name = _("Launch")
|
|
success_message = _('Launched %(count)s named "%(name)s".')
|
|
failure_message = _('Unable to launch %(count)s named "%(name)s".')
|
|
success_url = "horizon:project:databases:index"
|
|
default_steps = (SetInstanceDetails,
|
|
dash_create_instance.SetNetwork,
|
|
InitializeDatabase,
|
|
Advanced)
|
|
|
|
def __init__(self, request=None, context_seed=None, entry_point=None,
|
|
*args, **kwargs):
|
|
super(LaunchInstance, self).__init__(request, context_seed,
|
|
entry_point, *args, **kwargs)
|
|
self.attrs['autocomplete'] = (
|
|
settings.HORIZON_CONFIG.get('password_autocomplete'))
|
|
|
|
def format_status_message(self, message):
|
|
name = self.context.get('name', 'unknown instance')
|
|
return message % {"count": _("instance"), "name": name}
|
|
|
|
def _get_databases(self, context):
|
|
"""Returns the initial databases for this instance."""
|
|
databases = None
|
|
if context.get('databases'):
|
|
dbs = context['databases']
|
|
databases = [{'name': d.strip()} for d in dbs.split(',')]
|
|
return databases
|
|
|
|
def _get_users(self, context):
|
|
users = None
|
|
if context.get('user'):
|
|
user = {
|
|
'name': context['user'],
|
|
'password': context['password'],
|
|
'databases': self._get_databases(context),
|
|
}
|
|
if context['host']:
|
|
user['host'] = context['host']
|
|
users = [user]
|
|
return users
|
|
|
|
def _get_backup(self, context):
|
|
backup = None
|
|
if context.get('backup'):
|
|
backup = {'backupRef': context['backup']}
|
|
return backup
|
|
|
|
def _get_nics(self, context):
|
|
netids = context.get('network_id', None)
|
|
if netids:
|
|
return [{"net-id": netid, "v4-fixed-ip": ""}
|
|
for netid in netids]
|
|
else:
|
|
return None
|
|
|
|
def _get_volume_type(self, context):
|
|
volume_type = None
|
|
if context.get('volume_type') != 'no_type':
|
|
volume_type = context['volume_type']
|
|
return volume_type
|
|
|
|
def _get_locality(self, context):
|
|
# If creating a replica from a master then always set to None
|
|
if context.get('master'):
|
|
return None
|
|
|
|
locality = None
|
|
if context.get('locality'):
|
|
locality = context['locality']
|
|
return locality
|
|
|
|
def handle(self, request, context):
|
|
try:
|
|
datastore, datastore_version = parse_datastore_and_version_text(
|
|
common_utils.unhexlify(self.context['datastore']))
|
|
avail_zone = context.get('availability_zone', None)
|
|
LOG.info("Launching database instance with parameters "
|
|
"{name=%s, volume=%s, volume_type=%s, flavor=%s, "
|
|
"datastore=%s, datastore_version=%s, "
|
|
"dbs=%s, "
|
|
"backups=%s, nics=%s, replica_of=%s replica_count=%s, "
|
|
"configuration=%s, locality=%s, "
|
|
"availability_zone=%s}",
|
|
context['name'], context['volume'],
|
|
self._get_volume_type(context), context['flavor'],
|
|
datastore, datastore_version,
|
|
self._get_databases(context),
|
|
self._get_backup(context), self._get_nics(context),
|
|
context.get('master'), context['replica_count'],
|
|
context.get('config'), self._get_locality(context),
|
|
avail_zone)
|
|
api.trove.instance_create(request,
|
|
context['name'],
|
|
context['volume'],
|
|
context['flavor'],
|
|
datastore=datastore,
|
|
datastore_version=datastore_version,
|
|
databases=self._get_databases(context),
|
|
users=self._get_users(context),
|
|
restore_point=self._get_backup(context),
|
|
nics=self._get_nics(context),
|
|
replica_of=context.get('master'),
|
|
replica_count=context['replica_count'],
|
|
volume_type=self._get_volume_type(
|
|
context),
|
|
configuration=context.get('config'),
|
|
locality=self._get_locality(context),
|
|
availability_zone=avail_zone)
|
|
return True
|
|
except Exception:
|
|
exceptions.handle(request)
|
|
return False
|