Merge "Add OS::Trove::Cluster resource"
This commit is contained in:
commit
e1aa606741
242
heat/engine/resources/openstack/trove/trove_cluster.py
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242
heat/engine/resources/openstack/trove/trove_cluster.py
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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 oslo_log import log as logging
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from heat.common.i18n import _
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from heat.common.i18n import _LI
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from heat.common.i18n import _LW
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from heat.engine import attributes
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from heat.engine import constraints
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from heat.engine import properties
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from heat.engine import resource
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from heat.engine import support
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LOG = logging.getLogger(__name__)
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class TroveCluster(resource.Resource):
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support_status = support.SupportStatus(version='2015.1')
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TROVE_STATUS = (
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ERROR, FAILED, ACTIVE,
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) = (
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'ERROR', 'FAILED', 'ACTIVE',
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)
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TROVE_STATUS_REASON = {
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FAILED: _('The database instance was created, but heat failed to set '
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'up the datastore. If a database instance is in the FAILED '
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'state, it should be deleted and a new one should be '
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'created.'),
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ERROR: _('The last operation for the database instance failed due to '
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'an error.'),
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}
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BAD_STATUSES = (ERROR, FAILED)
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PROPERTIES = (
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NAME, DATASTORE_TYPE, DATASTORE_VERSION, INSTANCES,
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) = (
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'name', 'datastore_type', 'datastore_version', 'instances',
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)
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_INSTANCE_KEYS = (
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FLAVOR, VOLUME_SIZE,
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) = (
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'flavor', 'volume_size',
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)
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ATTRIBUTES = (
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INSTANCES_ATTR, IP
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) = (
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'instances', 'ip'
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)
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properties_schema = {
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NAME: properties.Schema(
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properties.Schema.STRING,
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_('Name of the cluster to create.'),
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constraints=[
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constraints.Length(max=255),
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]
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),
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DATASTORE_TYPE: properties.Schema(
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properties.Schema.STRING,
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_("Name of registered datastore type."),
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required=True,
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constraints=[
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constraints.Length(max=255)
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]
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),
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DATASTORE_VERSION: properties.Schema(
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properties.Schema.STRING,
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_("Name of the registered datastore version. "
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"It must exist for provided datastore type. "
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"Defaults to using single active version. "
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"If several active versions exist for provided datastore type, "
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"explicit value for this parameter must be specified."),
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required=True,
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constraints=[constraints.Length(max=255)]
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),
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INSTANCES: properties.Schema(
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properties.Schema.LIST,
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_("List of database instances."),
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required=True,
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schema=properties.Schema(
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properties.Schema.MAP,
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schema={
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FLAVOR: properties.Schema(
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properties.Schema.STRING,
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_('Flavor of the instance.'),
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required=True,
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constraints=[
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constraints.CustomConstraint('trove.flavor')
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]
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),
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VOLUME_SIZE: properties.Schema(
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properties.Schema.INTEGER,
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_('Size of the instance disk volume in GB.'),
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required=True,
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constraints=[
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constraints.Range(1, 150),
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]
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)
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}
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)
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)
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}
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attributes_schema = {
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INSTANCES: attributes.Schema(
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_("A list of instances ids.")
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),
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IP: attributes.Schema(
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_("IP of the cluster.")
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)
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}
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default_client_name = 'trove'
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def _cluster_name(self):
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return self.properties[self.NAME] or self.physical_resource_name()
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def handle_create(self):
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datastore_type = self.properties[self.DATASTORE_TYPE]
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datastore_version = self.properties[self.DATASTORE_VERSION]
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# convert instances to format required by troveclient
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instances = []
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for instance in self.properties[self.INSTANCES]:
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instances.append({
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'flavorRef': self.client_plugin().get_flavor_id(
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instance[self.FLAVOR]),
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'volume': {'size': instance[self.VOLUME_SIZE]}
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})
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args = {
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'name': self._cluster_name(),
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'datastore': datastore_type,
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'datastore_version': datastore_version,
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'instances': instances
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}
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cluster = self.client().clusters.create(**args)
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self.resource_id_set(cluster.id)
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return cluster
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def _refresh_cluster(self, cluster):
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try:
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cluster = self.client().clusters.get(cluster.id)
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return cluster
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except Exception as exc:
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if self.client_plugin().is_over_limit(exc):
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LOG.warn(_LW("Stack %(name)s (%(id)s) received an "
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"OverLimit response during clusters.get():"
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" %(exception)s"),
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{'name': self.stack.name,
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'id': self.stack.id,
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'exception': exc})
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return cluster
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else:
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raise
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def check_create_complete(self, cluster):
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cluster = self._refresh_cluster(cluster)
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for instance in cluster.instances:
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if instance['status'] in self.BAD_STATUSES:
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raise resource.ResourceInError(
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resource_status=instance['status'],
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status_reason=self.TROVE_STATUS_REASON.get(
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instance['status'], _("Unknown")))
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if instance['status'] != self.ACTIVE:
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return False
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LOG.info(_LI("Cluster '%s' has been created"), cluster.name)
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return True
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def handle_delete(self):
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if not self.resource_id:
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return
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try:
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cluster = self.client().clusters.get(self.resource_id)
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except Exception as ex:
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self.client_plugin().ignore_not_found(ex)
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else:
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cluster.delete()
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return cluster
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def check_delete_complete(self, cluster):
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if not cluster:
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return True
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try:
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# For some time trove cluster may continue to live
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self._refresh_cluster(cluster)
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except Exception as ex:
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self.client_plugin().ignore_not_found(ex)
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return True
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return False
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def validate(self):
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res = super(TroveCluster, self).validate()
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if res:
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return res
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datastore_type = self.properties[self.DATASTORE_TYPE]
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datastore_version = self.properties[self.DATASTORE_VERSION]
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self.client_plugin().validate_datastore(
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datastore_type, datastore_version,
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self.DATASTORE_TYPE, self.DATASTORE_VERSION)
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def _resolve_attribute(self, name):
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if name == self.INSTANCES_ATTR:
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instances = []
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cluster = self.client().clusters.get(self.resource_id)
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for instance in cluster.instances:
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instances.append(instance['id'])
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return instances
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elif name == self.IP:
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cluster = self.client().clusters.get(self.resource_id)
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return cluster.ip
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def resource_mapping():
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return {
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'OS::Trove::Cluster': TroveCluster
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}
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167
heat/tests/test_trove_cluster.py
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167
heat/tests/test_trove_cluster.py
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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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import mock
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import six
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from troveclient.openstack.common.apiclient import exceptions as troveexc
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from heat.common import exception
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from heat.common import template_format
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from heat.engine.clients.os import trove
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from heat.engine.resources.openstack.trove import trove_cluster
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from heat.engine import scheduler
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from heat.tests import common
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from heat.tests import utils
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stack_template = '''
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heat_template_version: 2013-05-23
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resources:
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cluster:
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type: OS::Trove::Cluster
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properties:
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datastore_type: mongodb
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datastore_version: 2.6.1
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instances:
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- flavor: m1.heat
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volume_size: 1
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- flavor: m1.heat
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volume_size: 1
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- flavor: m1.heat
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volume_size: 1
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'''
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class FakeTroveCluster(object):
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def __init__(self, status='ACTIVE'):
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self.name = 'cluster'
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self.id = '1189aa64-a471-4aa3-876a-9eb7d84089da'
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self.ip = '10.0.0.1'
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self.instances = [
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{'id': '416b0b16-ba55-4302-bbd3-ff566032e1c1', 'status': status},
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{'id': '965ef811-7c1d-47fc-89f2-a89dfdd23ef2', 'status': status},
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{'id': '3642f41c-e8ad-4164-a089-3891bf7f2d2b', 'status': status}]
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def delete(self):
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pass
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class FakeFlavor(object):
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def __init__(self, id, name):
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self.id = id
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self.name = name
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class FakeVersion(object):
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def __init__(self, name="2.6.1"):
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self.name = name
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class TroveClusterTest(common.HeatTestCase):
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def setUp(self):
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super(TroveClusterTest, self).setUp()
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utils.setup_dummy_db()
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self.ctx = utils.dummy_context()
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t = template_format.parse(stack_template)
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self.stack = utils.parse_stack(t)
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resource_defns = self.stack.t.resource_definitions(self.stack)
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self.rsrc_defn = resource_defns['cluster']
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self.patcher_client = mock.patch.object(trove_cluster.TroveCluster,
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'client')
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mock_client = self.patcher_client.start()
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self.client = mock_client.return_value
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client = mock.Mock()
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client.flavors.list.return_value = [FakeFlavor(1, 'm1.heat')]
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client.datastore_versions.list.return_value = [FakeVersion()]
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self.patchobject(trove.TroveClientPlugin, 'client',
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return_value=client)
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def tearDown(self):
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super(TroveClusterTest, self).tearDown()
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self.patcher_client.stop()
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def _create_resource(self, name, snippet, stack):
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tc = trove_cluster.TroveCluster(name, snippet, stack)
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self.client.clusters.create.return_value = FakeTroveCluster()
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self.client.clusters.get.return_value = FakeTroveCluster()
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scheduler.TaskRunner(tc.create)()
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return tc
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def test_create(self):
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tc = self._create_resource('cluster', self.rsrc_defn, self.stack)
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expected_state = (tc.CREATE, tc.COMPLETE)
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self.assertEqual(expected_state, tc.state)
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args = self.client.clusters.create.call_args[1]
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self.assertEqual([{'flavorRef': 1, 'volume': {'size': 1}},
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{'flavorRef': 1, 'volume': {'size': 1}},
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{'flavorRef': 1, 'volume': {'size': 1}}],
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args['instances'])
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self.assertEqual('mongodb', args['datastore'])
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self.assertEqual('2.6.1', args['datastore_version'])
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self.assertEqual('1189aa64-a471-4aa3-876a-9eb7d84089da',
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tc.resource_id)
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def test_resource_mapping(self):
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mapping = trove_cluster.resource_mapping()
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self.assertEqual(1, len(mapping))
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self.assertEqual(trove_cluster.TroveCluster,
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mapping['OS::Trove::Cluster'])
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def test_attributes(self):
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tc = self._create_resource('cluster', self.rsrc_defn, self.stack)
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self.assertEqual('10.0.0.1', tc.FnGetAtt('ip'))
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self.assertEqual(['416b0b16-ba55-4302-bbd3-ff566032e1c1',
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'965ef811-7c1d-47fc-89f2-a89dfdd23ef2',
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'3642f41c-e8ad-4164-a089-3891bf7f2d2b'],
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tc.FnGetAtt('instances'))
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def test_delete(self):
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tc = self._create_resource('cluster', self.rsrc_defn, self.stack)
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self.patchobject(tc, 'handle_delete', return_value=None)
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scheduler.TaskRunner(tc.delete)()
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self.assertEqual((tc.DELETE, tc.COMPLETE), tc.state)
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def test_delete_not_found(self):
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tc = self._create_resource('cluster', self.rsrc_defn, self.stack)
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self.client.clusters.get.side_effect = troveexc.NotFound()
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scheduler.TaskRunner(tc.delete)()
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self.assertEqual((tc.DELETE, tc.COMPLETE), tc.state)
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self.client.clusters.get.assert_called_with(tc.resource_id)
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self.assertEqual(2, self.client.clusters.get.call_count)
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def test_validate_ok(self):
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tc = trove_cluster.TroveCluster('cluster', self.rsrc_defn, self.stack)
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self.assertIsNone(tc.validate())
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def test_validate_invalid_dsversion(self):
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self.rsrc_defn['Properties']['datastore_version'] = '2.6.2'
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tc = trove_cluster.TroveCluster('cluster', self.rsrc_defn, self.stack)
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ex = self.assertRaises(exception.StackValidationFailed, tc.validate)
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error_msg = ('Datastore version 2.6.2 for datastore type mongodb is '
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'not valid. Allowed versions are 2.6.1.')
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self.assertEqual(error_msg, six.text_type(ex))
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def test_validate_invalid_flavor(self):
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self.rsrc_defn['Properties']['instances'][0]['flavor'] = 'm1.small'
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tc = trove_cluster.TroveCluster('cluster', self.rsrc_defn, self.stack)
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ex = self.assertRaises(exception.StackValidationFailed, tc.validate)
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error_msg = ("Property error : cluster: instances Property error : "
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"instances: 0 Property error : 0: flavor "
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"Error validating value 'm1.small': "
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"The Flavor ID (m1.small) could not be found.")
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self.assertEqual(error_msg, six.text_type(ex))
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