437 lines
12 KiB
Python
437 lines
12 KiB
Python
# Copyright (c) 2016 TUBITAK BILGEM
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# All Rights Reserved.
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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_config import cfg
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hyperv_opt_group = cfg.OptGroup("hyperv",
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title="The Hyper-V feature",
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help="""
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The hyperv feature allows you to configure the Hyper-V hypervisor
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driver to be used within an OpenStack deployment.
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""")
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dynamic_memory_ratio_opt = cfg.FloatOpt('dynamic_memory_ratio',
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default=1.0,
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help="""
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Dynamic memory ratio
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Enables dynamic memory allocation (ballooning) when set to a value
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greater than 1. The value expresses the ratio between the total RAM
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assigned to an instance and its startup RAM amount. For example a
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ratio of 2.0 for an instance with 1024MB of RAM implies 512MB of
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RAM allocated at startup.
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Possible values:
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* 1.0: Disables dynamic memory allocation (Default).
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* Float values greater than 1.0: Enables allocation of total implied
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RAM divided by this value for startup.
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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enable_instance_metrics_collection_opt = cfg.BoolOpt(
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'enable_instance_metrics_collection',
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default=False,
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help="""
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Enable instance metrics collection
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Enables metrics collections for an instance by using Hyper-V's
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metric APIs. Collected data can by retrieved by other apps and
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services, e.g.: Ceilometer.
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Possible values:
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* True: Enables metrics collection.
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* False: Disables metric collection (Default).
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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instances_path_share_opt = cfg.StrOpt('instances_path_share',
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default="",
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help="""
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Instances path share
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The name of a Windows share mapped to the "instances_path" dir
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and used by the resize feature to copy files to the target host.
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If left blank, an administrative share (hidden network share) will
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be used, looking for the same "instances_path" used locally.
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Possible values:
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* "": An administrative share will be used (Default).
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* Name of a Windows share.
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Services which consume this:
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* nova-compute
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Related options:
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* "instances_path": The directory which will be used if this option
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here is left blank.
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""")
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limit_cpu_features_opt = cfg.BoolOpt('limit_cpu_features',
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default=False,
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help="""
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Limit CPU features
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This flag is needed to support live migration to hosts with
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different CPU features and checked during instance creation
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in order to limit the CPU features used by the instance.
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Possible values:
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* True: Limit processor-specific features.
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* False: Do not limit processor-specific features (Default).
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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mounted_disk_query_retry_count_opt = cfg.IntOpt(
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'mounted_disk_query_retry_count',
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default=10,
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help="""
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Mounted disk query retry count
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The number of times to retry checking for a disk mounted via iSCSI.
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During long stress runs the WMI query that is looking for the iSCSI
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device number can incorrectly return no data. If the query is
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retried the appropriate data can then be obtained. The query runs
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until the device can be found or the retry count is reached.
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Possible values:
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* Positive integer values. Values greater than 1 is recommended
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(Default: 10).
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Services which consume this:
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* nova-compute
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Related options:
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* Time interval between disk mount retries is declared with
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"mounted_disk_query_retry_interval" option.
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""")
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mounted_disk_query_retry_interval_opt = cfg.IntOpt(
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'mounted_disk_query_retry_interval',
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default=5,
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help="""
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Mounted disk query retry interval
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Interval between checks for a mounted iSCSI disk, in seconds.
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Possible values:
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* Time in seconds (Default: 5).
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Services which consume this:
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* nova-compute
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Related options:
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* This option is meaningful when the mounted_disk_query_retry_count
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is greater than 1.
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* The retry loop runs with mounted_disk_query_retry_count and
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mounted_disk_query_retry_interval configuration options.
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""")
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power_state_check_timeframe_opt = cfg.IntOpt('power_state_check_timeframe',
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default=60,
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help="""
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Power state check timeframe
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The timeframe to be checked for instance power state changes.
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This option is used to fetch the state of the instance from Hyper-V
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through the WMI interface, within the specified timeframe.
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Possible values:
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* Timeframe in seconds (Default: 60).
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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power_state_event_polling_interval_opt = cfg.IntOpt(
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'power_state_event_polling_interval',
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default=2,
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help="""
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Power state event polling interval
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Instance power state change event polling frequency. Sets the
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listener interval for power state events to the given value.
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This option enhances the internal lifecycle notifications of
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instances that reboot themselves. It is unlikely that an operator
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has to change this value.
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Possible values:
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* Time in seconds (Default: 2).
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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qemu_img_cmd_opt = cfg.StrOpt('qemu_img_cmd',
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default="qemu-img.exe",
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help="""
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qemu-img command
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qemu-img is required for some of the image related operations
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like converting between different image types. You can get it
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from here: (http://qemu.weilnetz.de/) or you can install the
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Cloudbase OpenStack Hyper-V Compute Driver
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(https://cloudbase.it/openstack-hyperv-driver/) which automatically
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sets the proper path for this config option. You can either give the
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full path of qemu-img.exe or set its path in the PATH environment
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variable and leave this option to the default value.
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Possible values:
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* Name of the qemu-img executable, in case it is in the same
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directory as the nova-compute service or its path is in the
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PATH environment variable (Default).
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* Path of qemu-img command (DRIVELETTER:\PATH\TO\QEMU-IMG\COMMAND).
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Services which consume this:
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* nova-compute
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Related options:
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* If the config_drive_cdrom option is False, qemu-img will be used to
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convert the ISO to a VHD, otherwise the configuration drive will
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remain an ISO. To use configuration drive with Hyper-V, you must
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set the mkisofs_cmd value to the full path to an mkisofs.exe
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installation.
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""")
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vswitch_name_opt = cfg.StrOpt('vswitch_name',
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help="""
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External virtual switch name
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The Hyper-V Virtual Switch is a software-based layer-2 Ethernet
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network switch that is available with the installation of the
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Hyper-V server role. The switch includes programmatically managed
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and extensible capabilities to connect virtual machines to both
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virtual networks and the physical network. In addition, Hyper-V
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Virtual Switch provides policy enforcement for security, isolation,
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and service levels. The vSwitch represented by this config option
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must be an external one (not internal or private).
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Possible values:
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* If not provided, the first of a list of available vswitches
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is used. This list is queried using WQL.
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* Virtual switch name.
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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wait_soft_reboot_seconds_opt = cfg.IntOpt('wait_soft_reboot_seconds',
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default=60,
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help="""
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Wait soft reboot seconds
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Number of seconds to wait for instance to shut down after soft
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reboot request is made. We fall back to hard reboot if instance
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does not shutdown within this window.
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Possible values:
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* Time in seconds (Default: 60).
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Services which consume this:
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* nova-compute
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Related options:
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* None
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""")
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config_drive_cdrom_opt = cfg.BoolOpt('config_drive_cdrom',
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default=False,
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help="""
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Configuration drive cdrom
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OpenStack can be configured to write instance metadata to
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a configuration drive, which is then attached to the
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instance before it boots. The configuration drive can be
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attached as a disk drive (default) or as a CD drive.
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Possible values:
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* True: Attach the configuration drive image as a CD drive.
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* False: Attach the configuration drive image as a disk drive (Default).
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Services which consume this:
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* nova-compute
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Related options:
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* This option is meaningful with force_config_drive option set to 'True'
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or when the REST API call to create an instance will have
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'--config-drive=True' flag.
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* config_drive_format option must be set to 'iso9660' in order to use
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CD drive as the configuration drive image.
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* To use configuration drive with Hyper-V, you must set the
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mkisofs_cmd value to the full path to an mkisofs.exe installation.
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Additionally, you must set the qemu_img_cmd value to the full path
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to an qemu-img command installation.
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* You can configure the Compute service to always create a configuration
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drive by setting the force_config_drive option to 'True'.
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""")
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config_drive_inject_password_opt = cfg.BoolOpt('config_drive_inject_password',
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default=False,
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help="""
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Configuration drive inject password
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Enables setting the admin password in the configuration drive image.
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Possible values:
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* True: Enables the feature.
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* False: Disables the feature (Default).
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Services which consume this:
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* nova-compute
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Related options:
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* This option is meaningful when used with other options that enable
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configuration drive usage with Hyper-V, such as force_config_drive.
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* Currently, the only accepted config_drive_format is 'iso9660'.
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""")
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volume_attach_retry_count_opt = cfg.IntOpt('volume_attach_retry_count',
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default=10,
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help="""
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Volume attach retry count
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The number of times to retry to attach a volume. This option is used
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to avoid incorrectly returned no data when the system is under load.
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Volume attachment is retried until success or the given retry count
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is reached. To prepare the Hyper-V node to be able to attach to
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volumes provided by cinder you must first make sure the Windows iSCSI
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initiator service is running and started automatically.
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Possible values:
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* Positive integer values (Default: 10).
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Services which consume this:
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* nova-compute
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Related options:
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* Time interval between attachment attempts is declared with
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volume_attach_retry_interval option.
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""")
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volume_attach_retry_interval_opt = cfg.IntOpt('volume_attach_retry_interval',
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default=5,
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help="""
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Volume attach retry interval
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Interval between volume attachment attempts, in seconds.
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Possible values:
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* Time in seconds (Default: 5).
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Services which consume this:
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* nova-compute
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Related options:
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* This options is meaningful when volume_attach_retry_count
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is greater than 1.
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* The retry loop runs with volume_attach_retry_count and
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volume_attach_retry_interval configuration options.
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""")
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ALL_OPTS = [dynamic_memory_ratio_opt,
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enable_instance_metrics_collection_opt,
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instances_path_share_opt,
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limit_cpu_features_opt,
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mounted_disk_query_retry_count_opt,
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mounted_disk_query_retry_interval_opt,
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power_state_check_timeframe_opt,
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power_state_event_polling_interval_opt,
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qemu_img_cmd_opt,
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vswitch_name_opt,
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wait_soft_reboot_seconds_opt,
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config_drive_cdrom_opt,
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config_drive_inject_password_opt,
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volume_attach_retry_count_opt,
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volume_attach_retry_interval_opt]
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def register_opts(conf):
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conf.register_opts(ALL_OPTS, group=hyperv_opt_group)
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def list_opts():
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return {hyperv_opt_group: ALL_OPTS}
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