899 lines
35 KiB
Python
899 lines
35 KiB
Python
#
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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 copy
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from oslo_config import cfg
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from oslo_log import log as logging
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import six
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from heat.common import exception
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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.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 scheduler
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from heat.engine import volume_tasks as vol_task
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cfg.CONF.import_opt('instance_user', 'heat.common.config')
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LOG = logging.getLogger(__name__)
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class Instance(resource.Resource):
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PROPERTIES = (
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IMAGE_ID, INSTANCE_TYPE, KEY_NAME, AVAILABILITY_ZONE,
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DISABLE_API_TERMINATION, KERNEL_ID, MONITORING,
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PLACEMENT_GROUP_NAME, PRIVATE_IP_ADDRESS, RAM_DISK_ID,
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SECURITY_GROUPS, SECURITY_GROUP_IDS, NETWORK_INTERFACES,
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SOURCE_DEST_CHECK, SUBNET_ID, TAGS, NOVA_SCHEDULER_HINTS, TENANCY,
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USER_DATA, VOLUMES, BLOCK_DEVICE_MAPPINGS
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) = (
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'ImageId', 'InstanceType', 'KeyName', 'AvailabilityZone',
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'DisableApiTermination', 'KernelId', 'Monitoring',
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'PlacementGroupName', 'PrivateIpAddress', 'RamDiskId',
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'SecurityGroups', 'SecurityGroupIds', 'NetworkInterfaces',
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'SourceDestCheck', 'SubnetId', 'Tags', 'NovaSchedulerHints', 'Tenancy',
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'UserData', 'Volumes', 'BlockDeviceMappings'
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)
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_TAG_KEYS = (
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TAG_KEY, TAG_VALUE,
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) = (
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'Key', 'Value',
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)
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_NOVA_SCHEDULER_HINT_KEYS = (
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NOVA_SCHEDULER_HINT_KEY, NOVA_SCHEDULER_HINT_VALUE,
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) = (
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'Key', 'Value',
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)
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_VOLUME_KEYS = (
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VOLUME_DEVICE, VOLUME_ID,
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) = (
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'Device', 'VolumeId',
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)
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_BLOCK_DEVICE_MAPPINGS_KEYS = (
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DEVICE_NAME, EBS, NO_DEVICE, VIRTUAL_NAME,
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) = (
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'DeviceName', 'Ebs', 'NoDevice', 'VirtualName',
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)
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_EBS_KEYS = (
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DELETE_ON_TERMINATION, IOPS, SNAPSHOT_ID, VOLUME_SIZE,
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VOLUME_TYPE,
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) = (
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'DeleteOnTermination', 'Iops', 'SnapshotId', 'VolumeSize',
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'VolumeType'
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)
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ATTRIBUTES = (
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AVAILABILITY_ZONE_ATTR, PRIVATE_DNS_NAME, PUBLIC_DNS_NAME, PRIVATE_IP,
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PUBLIC_IP,
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) = (
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'AvailabilityZone', 'PrivateDnsName', 'PublicDnsName', 'PrivateIp',
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'PublicIp',
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)
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properties_schema = {
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IMAGE_ID: properties.Schema(
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properties.Schema.STRING,
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_('Glance image ID or name.'),
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constraints=[
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constraints.CustomConstraint('glance.image')
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],
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required=True
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),
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# AWS does not require InstanceType but Heat does because the nova
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# create api call requires a flavor
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INSTANCE_TYPE: properties.Schema(
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properties.Schema.STRING,
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_('Nova instance type (flavor).'),
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required=True,
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update_allowed=True,
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constraints=[
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constraints.CustomConstraint('nova.flavor')
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]
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),
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KEY_NAME: properties.Schema(
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properties.Schema.STRING,
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_('Optional Nova keypair name.'),
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constraints=[
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constraints.CustomConstraint("nova.keypair")
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]
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),
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AVAILABILITY_ZONE: properties.Schema(
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properties.Schema.STRING,
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_('Availability zone to launch the instance in.')
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),
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DISABLE_API_TERMINATION: properties.Schema(
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properties.Schema.STRING,
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_('Not Implemented.'),
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implemented=False
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),
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KERNEL_ID: properties.Schema(
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properties.Schema.STRING,
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_('Not Implemented.'),
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implemented=False
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),
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MONITORING: properties.Schema(
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properties.Schema.BOOLEAN,
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_('Not Implemented.'),
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implemented=False
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),
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PLACEMENT_GROUP_NAME: properties.Schema(
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properties.Schema.STRING,
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_('Not Implemented.'),
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implemented=False
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),
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PRIVATE_IP_ADDRESS: properties.Schema(
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properties.Schema.STRING,
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_('Not Implemented.'),
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implemented=False
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),
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RAM_DISK_ID: properties.Schema(
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properties.Schema.STRING,
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_('Not Implemented.'),
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implemented=False
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),
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SECURITY_GROUPS: properties.Schema(
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properties.Schema.LIST,
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_('Security group names to assign.')
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),
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SECURITY_GROUP_IDS: properties.Schema(
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properties.Schema.LIST,
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_('Security group IDs to assign.')
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),
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NETWORK_INTERFACES: properties.Schema(
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properties.Schema.LIST,
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_('Network interfaces to associate with instance.'),
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update_allowed=True
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),
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SOURCE_DEST_CHECK: properties.Schema(
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properties.Schema.BOOLEAN,
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_('Not Implemented.'),
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implemented=False
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),
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SUBNET_ID: properties.Schema(
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properties.Schema.STRING,
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_('Subnet ID to launch instance in.'),
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update_allowed=True
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),
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TAGS: properties.Schema(
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properties.Schema.LIST,
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_('Tags to attach to instance.'),
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schema=properties.Schema(
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properties.Schema.MAP,
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schema={
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TAG_KEY: properties.Schema(
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properties.Schema.STRING,
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required=True
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),
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TAG_VALUE: properties.Schema(
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properties.Schema.STRING,
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required=True
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),
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},
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),
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update_allowed=True
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),
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NOVA_SCHEDULER_HINTS: properties.Schema(
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properties.Schema.LIST,
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_('Scheduler hints to pass to Nova (Heat extension).'),
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schema=properties.Schema(
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properties.Schema.MAP,
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schema={
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NOVA_SCHEDULER_HINT_KEY: properties.Schema(
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properties.Schema.STRING,
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required=True
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),
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NOVA_SCHEDULER_HINT_VALUE: properties.Schema(
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properties.Schema.STRING,
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required=True
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),
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},
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)
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),
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TENANCY: properties.Schema(
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properties.Schema.STRING,
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_('Not Implemented.'),
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constraints=[
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constraints.AllowedValues(['dedicated', 'default']),
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],
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implemented=False
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),
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USER_DATA: properties.Schema(
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properties.Schema.STRING,
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_('User data to pass to instance.')
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),
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VOLUMES: properties.Schema(
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properties.Schema.LIST,
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_('Volumes to attach to instance.'),
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default=[],
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schema=properties.Schema(
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properties.Schema.MAP,
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schema={
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VOLUME_DEVICE: properties.Schema(
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properties.Schema.STRING,
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_('The device where the volume is exposed on the '
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'instance. This assignment may not be honored and '
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'it is advised that the path '
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'/dev/disk/by-id/virtio-<VolumeId> be used '
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'instead.'),
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required=True
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),
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VOLUME_ID: properties.Schema(
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properties.Schema.STRING,
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_('The ID of the volume to be attached.'),
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required=True,
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constraints=[
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constraints.CustomConstraint('cinder.volume')
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]
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),
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}
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)
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),
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BLOCK_DEVICE_MAPPINGS: properties.Schema(
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properties.Schema.LIST,
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_('Block device mappings to attach to instance.'),
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schema=properties.Schema(
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properties.Schema.MAP,
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schema={
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DEVICE_NAME: properties.Schema(
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properties.Schema.STRING,
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_('A device name where the volume will be '
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'attached in the system at /dev/device_name.'
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'e.g. vdb'),
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required=True,
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),
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EBS: properties.Schema(
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properties.Schema.MAP,
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_('The ebs volume to attach to the instance.'),
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schema={
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DELETE_ON_TERMINATION: properties.Schema(
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properties.Schema.BOOLEAN,
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_('Indicate whether the volume should be '
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'deleted when the instance is terminated.'),
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default=True
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),
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IOPS: properties.Schema(
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properties.Schema.NUMBER,
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_('The number of I/O operations per second '
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'that the volume supports.'),
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implemented=False
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),
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SNAPSHOT_ID: properties.Schema(
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properties.Schema.STRING,
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_('The ID of the snapshot to create '
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'a volume from.'),
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constraints=[
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constraints.CustomConstraint(
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'cinder.snapshot')
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]
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),
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VOLUME_SIZE: properties.Schema(
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properties.Schema.STRING,
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_('The size of the volume, in GB. Must be '
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'equal or greater than the size of the '
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'snapshot. It is safe to leave this blank '
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'and have the Compute service infer '
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'the size.'),
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),
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VOLUME_TYPE: properties.Schema(
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properties.Schema.STRING,
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_('The volume type.'),
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implemented=False
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),
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},
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),
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NO_DEVICE: properties.Schema(
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properties.Schema.MAP,
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_('The can be used to unmap a defined device.'),
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implemented=False
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),
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VIRTUAL_NAME: properties.Schema(
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properties.Schema.STRING,
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_('The name of the virtual device. The name must be '
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'in the form ephemeralX where X is a number '
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'starting from zero (0); for example, ephemeral0.'),
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implemented=False
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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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AVAILABILITY_ZONE_ATTR: attributes.Schema(
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_('The Availability Zone where the specified instance is '
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'launched.')
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),
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PRIVATE_DNS_NAME: attributes.Schema(
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_('Private DNS name of the specified instance.')
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),
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PUBLIC_DNS_NAME: attributes.Schema(
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_('Public DNS name of the specified instance.')
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),
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PRIVATE_IP: attributes.Schema(
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_('Private IP address of the specified instance.')
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),
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PUBLIC_IP: attributes.Schema(
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_('Public IP address of the specified instance.')
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),
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}
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# Server host name limit to 53 characters by due to typical default
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# linux HOST_NAME_MAX of 64, minus the .novalocal appended to the name
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physical_resource_name_limit = 53
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default_client_name = 'nova'
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def __init__(self, name, json_snippet, stack):
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super(Instance, self).__init__(name, json_snippet, stack)
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self.ipaddress = None
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def _set_ipaddress(self, networks):
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'''
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Read the server's IP address from a list of networks provided by Nova
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'''
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# Just record the first ipaddress
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for n in networks:
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if len(networks[n]) > 0:
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self.ipaddress = networks[n][0]
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break
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def _ipaddress(self):
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'''
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Return the server's IP address, fetching it from Nova if necessary
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'''
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if self.ipaddress is None:
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self.ipaddress = self.client_plugin().server_to_ipaddress(
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self.resource_id)
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return self.ipaddress or '0.0.0.0'
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def _availability_zone(self):
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'''
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Return Server's Availability Zone, fetching it from Nova if necessary.
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'''
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availability_zone = self.properties[self.AVAILABILITY_ZONE]
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if availability_zone is None:
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try:
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server = self.nova().servers.get(self.resource_id)
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availability_zone = getattr(server,
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'OS-EXT-AZ:availability_zone')
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except Exception as e:
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self.client_plugin().ignore_not_found(e)
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return
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return availability_zone
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def _resolve_attribute(self, name):
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res = None
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if name == self.AVAILABILITY_ZONE_ATTR:
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res = self._availability_zone()
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elif name in self.ATTRIBUTES[1:]:
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res = self._ipaddress()
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LOG.info(_LI('%(name)s._resolve_attribute(%(attname)s) == %(res)s'),
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{'name': self.name, 'attname': name, 'res': res})
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return six.text_type(res) if res else None
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def _port_data_delete(self):
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# delete the port data which implicit-created
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port_id = self.data().get('port_id')
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if port_id:
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try:
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self.neutron().delete_port(port_id)
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except Exception as ex:
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self.client_plugin('neutron').ignore_not_found(ex)
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self.data_delete('port_id')
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def _build_nics(self, network_interfaces,
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security_groups=None, subnet_id=None):
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nics = None
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if network_interfaces:
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unsorted_nics = []
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for entry in network_interfaces:
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nic = (entry
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if not isinstance(entry, six.string_types)
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else {'NetworkInterfaceId': entry,
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'DeviceIndex': len(unsorted_nics)})
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unsorted_nics.append(nic)
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sorted_nics = sorted(unsorted_nics,
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key=lambda nic: int(nic['DeviceIndex']))
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nics = [{'port-id': snic['NetworkInterfaceId']}
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for snic in sorted_nics]
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else:
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# if SubnetId property in Instance, ensure subnet exists
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if subnet_id:
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neutronclient = self.neutron()
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network_id = self.client_plugin(
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'neutron').network_id_from_subnet_id(subnet_id)
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# if subnet verified, create a port to use this subnet
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# if port is not created explicitly, nova will choose
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# the first subnet in the given network.
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if network_id:
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fixed_ip = {'subnet_id': subnet_id}
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props = {
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'admin_state_up': True,
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'network_id': network_id,
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'fixed_ips': [fixed_ip]
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}
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if security_groups:
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props['security_groups'] = self.client_plugin(
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'neutron').get_secgroup_uuids(security_groups)
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port = neutronclient.create_port({'port': props})['port']
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# after create the port, set the port-id to
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# resource data, so that the port can be deleted on
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# instance delete.
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self.data_set('port_id', port['id'])
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nics = [{'port-id': port['id']}]
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return nics
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def _get_security_groups(self):
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security_groups = []
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for key in (self.SECURITY_GROUPS, self.SECURITY_GROUP_IDS):
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if self.properties.get(key) is not None:
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for sg in self.properties.get(key):
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security_groups.append(sg)
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if not security_groups:
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security_groups = None
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return security_groups
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def _build_block_device_mapping(self, bdm):
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if not bdm:
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return None
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bdm_dict = {}
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for mapping in bdm:
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device_name = mapping.get(self.DEVICE_NAME)
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ebs = mapping.get(self.EBS)
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if ebs:
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mapping_parts = []
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snapshot_id = ebs.get(self.SNAPSHOT_ID)
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volume_size = ebs.get(self.VOLUME_SIZE)
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delete = ebs.get(self.DELETE_ON_TERMINATION)
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if snapshot_id:
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mapping_parts.append(snapshot_id)
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mapping_parts.append('snap')
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if volume_size:
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mapping_parts.append(str(volume_size))
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else:
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mapping_parts.append('')
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if delete is not None:
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mapping_parts.append(str(delete))
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bdm_dict[device_name] = ':'.join(mapping_parts)
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return bdm_dict
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def _get_nova_metadata(self, properties):
|
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if properties is None or properties.get(self.TAGS) is None:
|
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return None
|
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return dict((tm[self.TAG_KEY], tm[self.TAG_VALUE])
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for tm in properties[self.TAGS])
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def handle_create(self):
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security_groups = self._get_security_groups()
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userdata = self.properties[self.USER_DATA] or ''
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flavor = self.properties[self.INSTANCE_TYPE]
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availability_zone = self.properties[self.AVAILABILITY_ZONE]
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image_name = self.properties[self.IMAGE_ID]
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image_id = self.client_plugin('glance').get_image_id(image_name)
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flavor_id = self.client_plugin().get_flavor_id(flavor)
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scheduler_hints = {}
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if self.properties[self.NOVA_SCHEDULER_HINTS]:
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for tm in self.properties[self.NOVA_SCHEDULER_HINTS]:
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# adopted from novaclient shell
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hint = tm[self.NOVA_SCHEDULER_HINT_KEY]
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hint_value = tm[self.NOVA_SCHEDULER_HINT_VALUE]
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if hint in scheduler_hints:
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if isinstance(scheduler_hints[hint], six.string_types):
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scheduler_hints[hint] = [scheduler_hints[hint]]
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scheduler_hints[hint].append(hint_value)
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else:
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scheduler_hints[hint] = hint_value
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else:
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scheduler_hints = None
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nics = self._build_nics(self.properties[self.NETWORK_INTERFACES],
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security_groups=security_groups,
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subnet_id=self.properties[self.SUBNET_ID])
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block_device_mapping = self._build_block_device_mapping(
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self.properties.get(self.BLOCK_DEVICE_MAPPINGS))
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|
|
server = None
|
|
|
|
# FIXME(shadower): the instance_user config option is deprecated. Once
|
|
# it's gone, we should always use ec2-user for compatibility with
|
|
# CloudFormation.
|
|
if cfg.CONF.instance_user:
|
|
instance_user = cfg.CONF.instance_user
|
|
else:
|
|
instance_user = 'ec2-user'
|
|
|
|
try:
|
|
server = self.nova().servers.create(
|
|
name=self.physical_resource_name(),
|
|
image=image_id,
|
|
flavor=flavor_id,
|
|
key_name=self.properties[self.KEY_NAME],
|
|
security_groups=security_groups,
|
|
userdata=self.client_plugin().build_userdata(
|
|
self.metadata_get(), userdata, instance_user),
|
|
meta=self._get_nova_metadata(self.properties),
|
|
scheduler_hints=scheduler_hints,
|
|
nics=nics,
|
|
availability_zone=availability_zone,
|
|
block_device_mapping=block_device_mapping)
|
|
finally:
|
|
# Avoid a race condition where the thread could be cancelled
|
|
# before the ID is stored
|
|
if server is not None:
|
|
self.resource_id_set(server.id)
|
|
|
|
return server, scheduler.TaskRunner(self._attach_volumes_task())
|
|
|
|
def _attach_volumes_task(self):
|
|
attach_tasks = (vol_task.VolumeAttachTask(self.stack,
|
|
self.resource_id,
|
|
volume_id,
|
|
device)
|
|
for volume_id, device in self.volumes())
|
|
return scheduler.PollingTaskGroup(attach_tasks)
|
|
|
|
def check_create_complete(self, cookie):
|
|
server, volume_attach_task = cookie
|
|
return (self._check_active(server) and
|
|
self._check_volume_attached(server, volume_attach_task))
|
|
|
|
def _check_volume_attached(self, server, volume_attach_task):
|
|
if not volume_attach_task.started():
|
|
self._set_ipaddress(server.networks)
|
|
volume_attach_task.start()
|
|
return volume_attach_task.done()
|
|
else:
|
|
return volume_attach_task.step()
|
|
|
|
def _check_active(self, server):
|
|
cp = self.client_plugin()
|
|
status = cp.get_status(server)
|
|
if status != 'ACTIVE':
|
|
cp.refresh_server(server)
|
|
status = cp.get_status(server)
|
|
|
|
if status == 'ACTIVE':
|
|
return True
|
|
|
|
if status in cp.deferred_server_statuses:
|
|
return False
|
|
|
|
if status == 'ERROR':
|
|
fault = getattr(server, 'fault', {})
|
|
raise resource.ResourceInError(
|
|
resource_status=status,
|
|
status_reason=_("Message: %(message)s, Code: %(code)s") % {
|
|
'message': fault.get('message', _('Unknown')),
|
|
'code': fault.get('code', _('Unknown'))
|
|
})
|
|
|
|
raise resource.ResourceUnknownStatus(
|
|
resource_status=server.status,
|
|
result=_('Instance is not active'))
|
|
|
|
def volumes(self):
|
|
"""
|
|
Return an iterator over (volume_id, device) tuples for all volumes
|
|
that should be attached to this instance.
|
|
"""
|
|
volumes = self.properties[self.VOLUMES]
|
|
|
|
return ((vol[self.VOLUME_ID],
|
|
vol[self.VOLUME_DEVICE]) for vol in volumes)
|
|
|
|
def _remove_matched_ifaces(self, old_network_ifaces, new_network_ifaces):
|
|
# find matches and remove them from old and new ifaces
|
|
old_network_ifaces_copy = copy.deepcopy(old_network_ifaces)
|
|
for iface in old_network_ifaces_copy:
|
|
if iface in new_network_ifaces:
|
|
new_network_ifaces.remove(iface)
|
|
old_network_ifaces.remove(iface)
|
|
|
|
def handle_check(self):
|
|
server = self.nova().servers.get(self.resource_id)
|
|
if not self._check_active(server):
|
|
raise exception.Error(_("Instance is not ACTIVE (was: %s)") %
|
|
server.status.strip())
|
|
|
|
def handle_update(self, json_snippet, tmpl_diff, prop_diff):
|
|
if 'Metadata' in tmpl_diff:
|
|
self.metadata_set(tmpl_diff['Metadata'])
|
|
checkers = []
|
|
server = None
|
|
if self.TAGS in prop_diff:
|
|
server = self.nova().servers.get(self.resource_id)
|
|
self.client_plugin().meta_update(
|
|
server, self._get_nova_metadata(prop_diff))
|
|
|
|
if self.INSTANCE_TYPE in prop_diff:
|
|
flavor = prop_diff[self.INSTANCE_TYPE]
|
|
flavor_id = self.client_plugin().get_flavor_id(flavor)
|
|
if not server:
|
|
server = self.nova().servers.get(self.resource_id)
|
|
checker = scheduler.TaskRunner(self.client_plugin().resize,
|
|
server, flavor, flavor_id)
|
|
checkers.append(checker)
|
|
if self.NETWORK_INTERFACES in prop_diff:
|
|
new_network_ifaces = prop_diff.get(self.NETWORK_INTERFACES)
|
|
old_network_ifaces = self.properties.get(self.NETWORK_INTERFACES)
|
|
subnet_id = (
|
|
prop_diff.get(self.SUBNET_ID) or
|
|
self.properties.get(self.SUBNET_ID))
|
|
security_groups = self._get_security_groups()
|
|
if not server:
|
|
server = self.nova().servers.get(self.resource_id)
|
|
# if there is entrys in old_network_ifaces and new_network_ifaces,
|
|
# remove the same entrys from old and new ifaces
|
|
if old_network_ifaces and new_network_ifaces:
|
|
# there are four situations:
|
|
# 1.old includes new, such as: old = 2,3, new = 2
|
|
# 2.new includes old, such as: old = 2,3, new = 1,2,3
|
|
# 3.has overlaps, such as: old = 2,3, new = 1,2
|
|
# 4.different, such as: old = 2,3, new = 1,4
|
|
# detach unmatched ones in old, attach unmatched ones in new
|
|
self._remove_matched_ifaces(old_network_ifaces,
|
|
new_network_ifaces)
|
|
if old_network_ifaces:
|
|
old_nics = self._build_nics(old_network_ifaces)
|
|
for nic in old_nics:
|
|
checker = scheduler.TaskRunner(
|
|
server.interface_detach,
|
|
nic['port-id'])
|
|
checkers.append(checker)
|
|
if new_network_ifaces:
|
|
new_nics = self._build_nics(new_network_ifaces)
|
|
for nic in new_nics:
|
|
checker = scheduler.TaskRunner(
|
|
server.interface_attach,
|
|
nic['port-id'],
|
|
None, None)
|
|
checkers.append(checker)
|
|
# if the interfaces not come from property 'NetworkInterfaces',
|
|
# the situation is somewhat complex, so to detach the old ifaces,
|
|
# and then attach the new ones.
|
|
else:
|
|
interfaces = server.interface_list()
|
|
for iface in interfaces:
|
|
checker = scheduler.TaskRunner(server.interface_detach,
|
|
iface.port_id)
|
|
checkers.append(checker)
|
|
# first to delete the port which implicit-created by heat
|
|
self._port_data_delete()
|
|
nics = self._build_nics(new_network_ifaces,
|
|
security_groups=security_groups,
|
|
subnet_id=subnet_id)
|
|
# 'SubnetId' property is empty(or None) and
|
|
# 'NetworkInterfaces' property is empty(or None),
|
|
# _build_nics() will return nics = None,we should attach
|
|
# first free port, according to similar behavior during
|
|
# instance creation
|
|
if not nics:
|
|
checker = scheduler.TaskRunner(server.interface_attach,
|
|
None, None, None)
|
|
checkers.append(checker)
|
|
else:
|
|
for nic in nics:
|
|
checker = scheduler.TaskRunner(
|
|
server.interface_attach,
|
|
nic['port-id'], None, None)
|
|
checkers.append(checker)
|
|
|
|
if checkers:
|
|
checkers[0].start()
|
|
return checkers
|
|
|
|
def check_update_complete(self, checkers):
|
|
'''Push all checkers to completion in list order.'''
|
|
for checker in checkers:
|
|
if not checker.started():
|
|
checker.start()
|
|
if not checker.step():
|
|
return False
|
|
return True
|
|
|
|
def metadata_update(self, new_metadata=None):
|
|
'''
|
|
Refresh the metadata if new_metadata is None
|
|
'''
|
|
if new_metadata is None:
|
|
self.metadata_set(self.t.metadata())
|
|
|
|
def validate(self):
|
|
'''
|
|
Validate any of the provided params
|
|
'''
|
|
res = super(Instance, self).validate()
|
|
if res:
|
|
return res
|
|
|
|
# check validity of security groups vs. network interfaces
|
|
security_groups = self._get_security_groups()
|
|
if security_groups and self.properties.get(self.NETWORK_INTERFACES):
|
|
raise exception.ResourcePropertyConflict(
|
|
'/'.join([self.SECURITY_GROUPS, self.SECURITY_GROUP_IDS]),
|
|
self.NETWORK_INTERFACES)
|
|
|
|
# check bdm property
|
|
# now we don't support without snapshot_id in bdm
|
|
bdm = self.properties.get(self.BLOCK_DEVICE_MAPPINGS)
|
|
if bdm:
|
|
for mapping in bdm:
|
|
ebs = mapping.get(self.EBS)
|
|
if ebs:
|
|
snapshot_id = ebs.get(self.SNAPSHOT_ID)
|
|
if not snapshot_id:
|
|
msg = _("SnapshotId is missing, this is required "
|
|
"when specifying BlockDeviceMappings.")
|
|
raise exception.StackValidationFailed(message=msg)
|
|
else:
|
|
msg = _("Ebs is missing, this is required "
|
|
"when specifying BlockDeviceMappings.")
|
|
raise exception.StackValidationFailed(message=msg)
|
|
|
|
def _detach_volumes_task(self):
|
|
'''
|
|
Detach volumes from the instance
|
|
'''
|
|
detach_tasks = (vol_task.VolumeDetachTask(self.stack,
|
|
self.resource_id,
|
|
volume_id)
|
|
for volume_id, device in self.volumes())
|
|
return scheduler.PollingTaskGroup(detach_tasks)
|
|
|
|
def handle_delete(self):
|
|
# make sure to delete the port which implicit-created by heat
|
|
self._port_data_delete()
|
|
|
|
if self.resource_id is None:
|
|
return
|
|
try:
|
|
server = self.nova().servers.get(self.resource_id)
|
|
except Exception as e:
|
|
self.client_plugin().ignore_not_found(e)
|
|
return
|
|
deleters = (
|
|
scheduler.TaskRunner(self._detach_volumes_task()),
|
|
scheduler.TaskRunner(self.client_plugin().delete_server,
|
|
server))
|
|
deleters[0].start()
|
|
return deleters
|
|
|
|
def check_delete_complete(self, deleters):
|
|
# if the resource was already deleted, deleters will be None
|
|
if deleters:
|
|
for deleter in deleters:
|
|
if not deleter.started():
|
|
deleter.start()
|
|
if not deleter.step():
|
|
return False
|
|
return True
|
|
|
|
def handle_suspend(self):
|
|
'''
|
|
Suspend an instance - note we do not wait for the SUSPENDED state,
|
|
this is polled for by check_suspend_complete in a similar way to the
|
|
create logic so we can take advantage of coroutines
|
|
'''
|
|
if self.resource_id is None:
|
|
raise exception.Error(_('Cannot suspend %s, resource_id not set') %
|
|
self.name)
|
|
|
|
try:
|
|
server = self.nova().servers.get(self.resource_id)
|
|
except Exception as e:
|
|
if self.client_plugin().is_not_found(e):
|
|
raise exception.NotFound(_('Failed to find instance %s') %
|
|
self.resource_id)
|
|
else:
|
|
LOG.debug("suspending instance %s" % self.resource_id)
|
|
# We want the server.suspend to happen after the volume
|
|
# detachement has finished, so pass both tasks and the server
|
|
suspend_runner = scheduler.TaskRunner(server.suspend)
|
|
volumes_runner = scheduler.TaskRunner(self._detach_volumes_task())
|
|
return server, suspend_runner, volumes_runner
|
|
|
|
def check_suspend_complete(self, cookie):
|
|
server, suspend_runner, volumes_runner = cookie
|
|
|
|
if not volumes_runner.started():
|
|
volumes_runner.start()
|
|
|
|
if volumes_runner.done():
|
|
if not suspend_runner.started():
|
|
suspend_runner.start()
|
|
|
|
if suspend_runner.done():
|
|
if server.status == 'SUSPENDED':
|
|
return True
|
|
|
|
cp = self.client_plugin()
|
|
cp.refresh_server(server)
|
|
LOG.debug("%(name)s check_suspend_complete "
|
|
"status = %(status)s",
|
|
{'name': self.name, 'status': server.status})
|
|
if server.status in list(cp.deferred_server_statuses +
|
|
['ACTIVE']):
|
|
return server.status == 'SUSPENDED'
|
|
else:
|
|
raise exception.Error(_(' nova reported unexpected '
|
|
'instance[%(instance)s] '
|
|
'status[%(status)s]') %
|
|
{'instance': self.name,
|
|
'status': server.status})
|
|
else:
|
|
suspend_runner.step()
|
|
else:
|
|
volumes_runner.step()
|
|
|
|
def handle_resume(self):
|
|
'''
|
|
Resume an instance - note we do not wait for the ACTIVE state,
|
|
this is polled for by check_resume_complete in a similar way to the
|
|
create logic so we can take advantage of coroutines
|
|
'''
|
|
if self.resource_id is None:
|
|
raise exception.Error(_('Cannot resume %s, resource_id not set') %
|
|
self.name)
|
|
|
|
try:
|
|
server = self.nova().servers.get(self.resource_id)
|
|
except Exception as e:
|
|
if self.client_plugin().is_not_found(e):
|
|
raise exception.NotFound(_('Failed to find instance %s') %
|
|
self.resource_id)
|
|
else:
|
|
LOG.debug("resuming instance %s" % self.resource_id)
|
|
server.resume()
|
|
return server, scheduler.TaskRunner(self._attach_volumes_task())
|
|
|
|
def check_resume_complete(self, cookie):
|
|
server, volume_attach_task = cookie
|
|
return (self._check_active(server) and
|
|
self._check_volume_attached(server, volume_attach_task))
|
|
|
|
|
|
def resource_mapping():
|
|
return {
|
|
'AWS::EC2::Instance': Instance,
|
|
}
|