novaclient.v2.servers module¶

Server interface.

class novaclient.v2.servers.NetworkInterface(manager, info, loaded=False, resp=None)¶

Bases: Resource

Populate and bind to a manager.

Parameters

• manager – BaseManager object

• info – dictionary representing resource attributes

• loaded – prevent lazy-loading if set to True

• resp – Response or list of Response objects

property id¶

class novaclient.v2.servers.SecurityGroup(manager, info, loaded=False, resp=None)¶

Bases: Resource

Populate and bind to a manager.

Parameters

• manager – BaseManager object

• info – dictionary representing resource attributes

• loaded – prevent lazy-loading if set to True

• resp – Response or list of Response objects

class novaclient.v2.servers.Server(manager, info, loaded=False, resp=None)¶

Bases: Resource

Populate and bind to a manager.

Parameters

• manager – BaseManager object

• info – dictionary representing resource attributes

• loaded – prevent lazy-loading if set to True

• resp – Response or list of Response objects

HUMAN_ID = True¶

add_security_group(security_group)¶

Add a security group to an instance.

Parameters

security_group – The name of security group to add

Returns

An instance of novaclient.base.DictWithMeta

add_tag(tag)¶

Add single tag to an instance.

backup(backup_name, backup_type, rotation)¶

Backup a server instance.

Parameters

• backup_name – Name of the backup image

• backup_type – The backup type, like ‘daily’ or ‘weekly’

• rotation – Int parameter representing how many backups to keep around.

Returns

An instance of novaclient.base.TupleWithMeta

change_password(password)¶

Update the admin password for a server.

Parameters

password – string to set as the admin password on the server

Returns

An instance of novaclient.base.TupleWithMeta

clear_password()¶

Get password for a Server.

confirm_resize()¶

Confirm that the resize worked, thus removing the original server.

Returns

An instance of novaclient.base.TupleWithMeta

create_image(image_name, metadata=None)¶

Create an image based on this server.

Parameters

• image_name – The name to assign the newly create image.

• metadata – Metadata to assign to the image.

delete()¶

Delete (i.e. shut down and delete the image) this server.

Returns

An instance of novaclient.base.TupleWithMeta

delete_all_tags()¶

Remove all tags from an instance.

delete_tag(tag)¶

Remove single tag from an instance.

diagnostics()¶

Diagnostics – Retrieve server diagnostics.

evacuate(host=None, password=None)¶

Evacuate an instance from failed host to specified host.

Parameters

• host – Name of the target host

• password – string to set as admin password on the evacuated server.

Returns

An instance of novaclient.base.TupleWithMeta

force_delete()¶

Force delete – Force delete a server.

Returns

An instance of novaclient.base.TupleWithMeta

get_console_output(length=None)¶

Get text console log output from Server.

Parameters

length – The number of lines you would like to retrieve (as int)

get_console_url(console_type)¶

Retrieve a console of a particular protocol and console_type

Parameters

console_type – Type of console

get_mks_console()¶

Get mks console for a Server.

get_password(private_key=None)¶

Get password for a Server.

Returns the clear password of an instance if private_key is provided, returns the ciphered password otherwise.

Parameters

private_key – Path to private key file for decryption (optional)

get_rdp_console(console_type)¶

Get rdp console for a Server.

Parameters

console_type – Type of console (‘rdp-html5’)

get_serial_console(console_type)¶

Get serial console for a Server.

Parameters

console_type – Type of console (‘serial’)

get_spice_console(console_type)¶

Get spice console for a Server.

Parameters

console_type – Type of console (‘spice-html5’)

get_vnc_console(console_type)¶

Get vnc console for a Server.

Parameters

console_type – Type of console (‘novnc’ or ‘xvpvnc’)

interface_attach(port_id, net_id, fixed_ip, tag=None)¶

Attach a network interface to an instance with an optional tag.

interface_detach(port_id)¶

Detach a network interface from an instance.

interface_list()¶

List interfaces attached to an instance.

list_security_group()¶

List security group(s) of an instance.

live_migrate(host=None, block_migration=None)¶

Migrates a running instance to a new machine.

Parameters

• host – destination host name.

• block_migration – if True, do block_migration, the default value is None which is mapped to ‘auto’.

Returns

An instance of novaclient.base.TupleWithMeta

lock(reason=None)¶

Lock – Lock the instance from certain operations.

Parameters

reason – (Optional) The lock reason.

Returns

An instance of novaclient.base.TupleWithMeta

migrate(host=None)¶

Migrate a server to a new host.

Parameters

host – (Optional) The target host.

Returns

An instance of novaclient.base.TupleWithMeta

property networks¶

Generate a simplified list of addresses

Returns

An OrderedDict, keyed by network name, and sorted by network name in ascending order.

pause()¶

Pause – Pause the running server.

Returns

An instance of novaclient.base.TupleWithMeta

reboot(reboot_type='SOFT')¶

Reboot the server.

Parameters

reboot_type – either REBOOT_SOFT for a software-level reboot, or REBOOT_HARD for a virtual power cycle hard reboot.

Returns

An instance of novaclient.base.TupleWithMeta

rebuild(image, password=None, preserve_ephemeral=False, **kwargs)¶

Rebuild – shut down and then re-image – this server.

Parameters

• image – the Image (or its ID) to re-image with.

• password – string to set as the admin password on the rebuilt server.

• preserve_ephemeral – If True, request that any ephemeral device be preserved when rebuilding the instance. Defaults to False.

remove_security_group(security_group)¶

Remove a security group from an instance.

Returns

An instance of novaclient.base.TupleWithMeta

rescue(password=None, image=None)¶

Rescue – Rescue the problematic server.

Parameters

• password – The admin password to be set in the rescue instance.

• image – The Image to rescue with.

Returns

An instance of novaclient.base.TupleWithMeta

reset_network()¶

Reset network of an instance.

Returns

An instance of novaclient.base.TupleWithMeta

reset_state(state='error')¶

Reset the state of an instance to active or error.

Returns

An instance of novaclient.base.TupleWithMeta

resize(flavor, **kwargs)¶

Resize the server’s resources.

Parameters

flavor – the Flavor (or its ID) to resize to.

Returns

An instance of novaclient.base.TupleWithMeta

Until a resize event is confirmed with confirm_resize(), the old server will be kept around and you’ll be able to roll back to the old flavor quickly with revert_resize(). All resizes are automatically confirmed after 24 hours.

restore()¶

Restore – Restore a server in ‘soft-deleted’ state.

Returns

An instance of novaclient.base.TupleWithMeta

resume()¶

Resume – Resume the suspended server.

Returns

An instance of novaclient.base.TupleWithMeta

revert_resize()¶

Revert a previous resize, switching back to the old server.

Returns

An instance of novaclient.base.TupleWithMeta

set_tags(tags)¶

Set list of tags to an instance.

shelve()¶

Shelve – Shelve the server.

Returns

An instance of novaclient.base.TupleWithMeta

shelve_offload()¶

Shelve_offload – Remove a shelved server from the compute node.

Returns

An instance of novaclient.base.TupleWithMeta

start()¶

Start – Start the paused server.

Returns

An instance of novaclient.base.TupleWithMeta

stop()¶

Stop – Stop the running server.

Returns

An instance of novaclient.base.TupleWithMeta

suspend()¶

Suspend – Suspend the running server.

Returns

An instance of novaclient.base.TupleWithMeta

tag_list()¶

Get list of tags from an instance.

topology()¶

Retrieve server topology.

trigger_crash_dump()¶

Trigger crash dump in an instance

unlock()¶

Unlock – Remove instance lock.

Returns

An instance of novaclient.base.TupleWithMeta

unpause()¶

Unpause – Unpause the paused server.

Returns

An instance of novaclient.base.TupleWithMeta

unrescue()¶

Unrescue – Unrescue the rescued server.

Returns

An instance of novaclient.base.TupleWithMeta

unshelve(availability_zone=<object object>, host=None)¶

Unshelve – Unshelve the server.

Parameters

• availability_zone – If specified the instance will be unshelved to the availability_zone. If None is passed the instance defined availability_zone is unpin and the instance will be scheduled to any availability_zone (free scheduling). If not specified the instance will be unshelved to either its defined availability_zone or any availability_zone (free scheduling).

• host – The specified host (Optional)

Returns

An instance of novaclient.base.TupleWithMeta

update(name=None, description=None, hostname=None)¶

Update attributes of this server.

Parameters

• name – Update the server’s name.

• description – Update the server’s description.

• hostname – Update the server’s hostname.

Returns

Server

class novaclient.v2.servers.ServerManager(api)¶

Bases: BootingManagerWithFind

add_security_group(server, security_group)¶

Add a Security Group to an instance

Parameters

• server – ID of the instance.

• security_group – The name of security group to add.

Returns

An instance of novaclient.base.DictWithMeta

add_tag(server, tag)¶

Add single tag to an instance.

backup(server, backup_name, backup_type, rotation)¶

Backup a server instance.

Parameters

• server – The Server (or its ID) to share onto.

• backup_name – Name of the backup image

• backup_type – The backup type, like ‘daily’ or ‘weekly’

• rotation – Int parameter representing how many backups to keep around.

Returns

An instance of novaclient.base.TupleWithMeta if the request microversion is < 2.45, otherwise novaclient.base.DictWithMeta.

change_password(server, password)¶

Update the password for a server.

Parameters

server – The Server (or its ID) for which the admin password is to be changed

Returns

An instance of novaclient.base.TupleWithMeta

clear_password(server)¶

Clear the admin password of an instance

Remove the admin password for an instance from the metadata server.

Parameters

server – The Server (or its ID) for which the admin password is to be cleared

confirm_resize(server)¶

Confirm that the resize worked, thus removing the original server.

Parameters

server – The Server (or its ID) to share onto.

Returns

An instance of novaclient.base.TupleWithMeta

create(name, image, flavor, meta=None, files=None, reservation_id=False, min_count=None, max_count=None, security_groups=None, userdata=None, key_name=None, availability_zone=None, block_device_mapping=None, block_device_mapping_v2=None, nics=None, scheduler_hints=None, config_drive=None, disk_config=None, admin_pass=None, access_ip_v4=None, access_ip_v6=None, trusted_image_certificates=None, host=None, hypervisor_hostname=None, hostname=None, **kwargs)¶

Create (boot) a new server.

In order to create a server with pre-existing ports that contain a resource_request value, such as for guaranteed minimum bandwidth quality of service support, microversion 2.72 is required.

Parameters

• name – Something to name the server.

• image – The Image to boot with.

• flavor – The Flavor to boot onto.

• meta – A dict of arbitrary key/value metadata to store for this server. Both keys and values must be <=255 characters.

• files – A dict of files to overwrite on the server upon boot. Keys are file names (i.e. /etc/passwd) and values are the file contents (either as a string or as a file-like object). A maximum of five entries is allowed, and each file must be 10k or less. (deprecated starting with microversion 2.57)

• reservation_id – return a reservation_id for the set of servers being requested, boolean.

• min_count – (optional extension) The minimum number of servers to launch.

• max_count – (optional extension) The maximum number of servers to launch.

• security_groups – A list of security group names

• userdata – user data to pass to be exposed by the metadata server this can be a file type object as well or a string.

• key_name – (optional extension) name of previously created keypair to inject into the instance.

• availability_zone – Name of the availability zone for instance placement.

• block_device_mapping – (optional extension) A dict of block device mappings for this server.

• block_device_mapping_v2 – (optional extension) A list of block device mappings (dicts) for this server.

• nics – An ordered list of nics (dicts) to be added to this server, with information about connected networks, fixed IPs, port etc. Beginning in microversion 2.37 this field is required and also supports a single string value of ‘auto’ or ‘none’. The ‘auto’ value means the Compute service will automatically allocate a network for the project if one is not available. This is the same behavior as not passing anything for nics before microversion 2.37. The ‘none’ value tells the Compute service to not allocate any networking for the server.

• scheduler_hints – (optional extension) arbitrary key-value pairs specified by the client to help boot an instance

• config_drive – (optional extension) a boolean value to enable config drive

• disk_config – (optional extension) control how the disk is partitioned when the server is created. possible values are ‘AUTO’ or ‘MANUAL’.

• admin_pass – (optional extension) add a user supplied admin password.

• access_ip_v4 – (optional extension) add alternative access ip v4

• access_ip_v6 – (optional extension) add alternative access ip v6

• description – optional description of the server (allowed since microversion 2.19)

• tags – A list of arbitrary strings to be added to the server as tags (allowed since microversion 2.52)

• trusted_image_certificates – A list of trusted certificate IDs (allowed since microversion 2.63)

• host – requested host to create servers (allowed since microversion 2.74)

• hypervisor_hostname – requested hypervisor hostname to create servers (allowed since microversion 2.74)

• hostname – requested hostname of server (allowed since microversion 2.90)

create_image(server, image_name, metadata=None)¶

Snapshot a server.

Parameters

• server – The Server (or its ID) to share onto.

• image_name – Name to give the snapshot image

• metadata – Metadata to give newly-created image entity

Returns

An instance of novaclient.base.StrWithMeta (The snapshot image’s UUID)

delete(server)¶

Delete (i.e. shut down and delete the image) this server.

Parameters

server – The Server (or its ID) to delete

Returns

An instance of novaclient.base.TupleWithMeta

delete_all_tags(server)¶

Remove all tags from an instance.

delete_meta(server, keys)¶

Delete metadata from a server

Parameters

• server – The Server to add metadata to

• keys – A list of metadata keys to delete from the server

Returns

An instance of novaclient.base.TupleWithMeta

delete_tag(server, tag)¶

Remove single tag from an instance.

diagnostics(server)¶

Retrieve server diagnostics.

Parameters

server – The Server (or its ID) for which diagnostics to be returned

Returns

An instance of novaclient.base.TupleWithMeta

evacuate(server, host=None, password=None)¶

Evacuate a server instance.

Parameters

• server – The Server (or its ID) to evacuate to.

• host – Name of the target host.

• password – string to set as password on the evacuated server.

Returns

An instance of novaclient.base.TupleWithMeta

force_delete(server)¶

Force delete the server.

Parameters

server – The Server (or its ID) to force delete

Returns

An instance of novaclient.base.TupleWithMeta

get(server)¶

Get a server.

Parameters

server – ID of the Server to get.

Return type

Server

get_console_output(server, length=None)¶

Get text console log output from Server.

Parameters

• server – The Server (or its ID) whose console output you would like to retrieve.

• length – The number of tail loglines you would like to retrieve.

Returns

An instance of novaclient.base.StrWithMeta or novaclient.base.UnicodeWithMeta

get_console_url(server, console_type)¶

Retrieve a console url of a server.

Parameters

• server – server to get console url for

• console_type – type can be novnc/xvpvnc for protocol vnc; spice-html5 for protocol spice; rdp-html5 for protocol rdp; serial for protocol serial. webmks for protocol mks (since version 2.8).

get_mks_console(server)¶

Get a mks console for an instance

Parameters

server – The Server (or its ID) to get console for.

Returns

An instance of novaclient.base.DictWithMeta

get_password(server, private_key=None)¶

Get admin password of an instance

Returns the admin password of an instance in the clear if private_key is provided, returns the ciphered password otherwise.

Requires that openssl is installed and in the path

Parameters

• server – The Server (or its ID) for which the admin password is to be returned

• private_key – The private key to decrypt password (optional)

Returns

An instance of novaclient.base.StrWithMeta or novaclient.base.BytesWithMeta or novaclient.base.UnicodeWithMeta

get_rdp_console(server, console_type)¶

Get a rdp console for an instance

Parameters

• server – The Server (or its ID) to get console for.

• console_type – Type of rdp console to get (‘rdp-html5’)

Returns

An instance of novaclient.base.DictWithMeta

get_serial_console(server, console_type)¶

Get a serial console for an instance

Parameters

• server – The Server (or its ID) to get console for.

• console_type – Type of serial console to get (‘serial’)

Returns

An instance of novaclient.base.DictWithMeta

get_spice_console(server, console_type)¶

Get a spice console for an instance

Parameters

• server – The Server (or its ID) to get console for.

• console_type – Type of spice console to get (‘spice-html5’)

Returns

An instance of novaclient.base.DictWithMeta

get_vnc_console(server, console_type)¶

Get a vnc console for an instance

Parameters

• server – The Server (or its ID) to get console for.

• console_type – Type of vnc console to get (‘novnc’ or ‘xvpvnc’)

Returns

An instance of novaclient.base.DictWithMeta

interface_attach(server, port_id, net_id, fixed_ip, tag=None)¶

Attach a network_interface to an instance.

Parameters

• server – The Server (or its ID) to attach to.

• port_id – The port to attach. The port_id and net_id parameters are mutually exclusive.

• net_id – The ID of the network to attach.

• fixed_ip – The fixed IP addresses. If the fixed_ip is specified, the net_id has to be specified at the same time.

• tag – The tag.

interface_detach(server, port_id)¶

Detach a network_interface from an instance.

Parameters

• server – The Server (or its ID) to detach from.

• port_id – The port to detach.

Returns

An instance of novaclient.base.TupleWithMeta

interface_list(server)¶

List attached network interfaces

Parameters

server – The Server (or its ID) to query.

ips(server)¶

Return IP Addresses associated with the server.

Often a cheaper call then getting all the details for a server.

Parameters

server – The Server (or its ID) for which the IP adresses are to be returned

Returns

An instance of novaclient.base.DictWithMeta

list(detailed=True, search_opts=None, marker=None, limit=None, sort_keys=None, sort_dirs=None)¶

Get a list of servers.

Parameters

• detailed – Whether to return detailed server info (optional).

• search_opts – Search options to filter out servers which don’t match the search_opts (optional). The search opts format is a dictionary of key / value pairs that will be appended to the query string. For a complete list of keys see: https://docs.openstack.org/api-ref/compute/#list-servers

• marker – Begin returning servers that appear later in the server list than that represented by this server id (optional).

• limit – Maximum number of servers to return (optional). Note the API server has a configurable default limit. If no limit is specified here or limit is larger than default, the default limit will be used. If limit == -1, all servers will be returned.

• sort_keys – List of sort keys

• sort_dirs – List of sort directions

Return type

list of Server

Examples:

client.servers.list() - returns detailed list of servers

client.servers.list(search_opts={‘status’: ‘ERROR’}) - returns list of servers in error state.

client.servers.list(limit=10) - returns only 10 servers

list_security_group(server)¶

List Security Group(s) of an instance

Parameters

server – ID of the instance.

live_migrate(server, host, block_migration)¶

Migrates a running instance to a new machine.

Parameters

• server – instance id which comes from nova list.

• host – destination host name.

• block_migration – if True, do block_migration, can be set as ‘auto’

Returns

An instance of novaclient.base.TupleWithMeta

lock(server, reason=None)¶

Lock the server.

Parameters

• server – The Server (or its ID) to lock

• reason – (Optional) The lock reason.

Returns

An instance of novaclient.base.TupleWithMeta

migrate(server, host=None)¶

Migrate a server to a new host.

Parameters

• server – The Server (or its ID).

• host – (Optional) The target host.

Returns

An instance of novaclient.base.TupleWithMeta

pause(server)¶

Pause the server.

Parameters

server – The Server (or its ID) to pause

Returns

An instance of novaclient.base.TupleWithMeta

reboot(server, reboot_type='SOFT')¶

Reboot a server.

Parameters

• server – The Server (or its ID) to share onto.

• reboot_type – either REBOOT_SOFT for a software-level reboot, or REBOOT_HARD for a virtual power cycle hard reboot.

Returns

An instance of novaclient.base.TupleWithMeta

rebuild(server, image, password=None, disk_config=None, preserve_ephemeral=False, name=None, meta=None, files=None, **kwargs)¶

Rebuild – shut down and then re-image – a server.

Parameters

• server – The Server (or its ID) to share onto.

• image – The Image (or its ID) to re-image with.

• password – String to set as password on the rebuilt server.

• disk_config – Partitioning mode to use on the rebuilt server. Valid values are ‘AUTO’ or ‘MANUAL’

• preserve_ephemeral – If True, request that any ephemeral device be preserved when rebuilding the instance. Defaults to False.

• name – Something to name the server.

• meta – A dict of arbitrary key/value metadata to store for this server. Both keys and values must be <=255 characters.

• files – A dict of files to overwrite on the server upon boot. Keys are file names (i.e. /etc/passwd) and values are the file contents (either as a string or as a file-like object). A maximum of five entries is allowed, and each file must be 10k or less. (deprecated starting with microversion 2.57)

• description – Optional description of the server. If None is specified, the existing description will be unset. (starting from microversion 2.19)

• key_name – Optional key pair name for rebuild operation. If None is specified, the existing key will be unset. (starting from microversion 2.54)

• userdata – Optional user data to pass to be exposed by the metadata server; this can be a file type object as well or a string. If None is specified, the existing user_data is unset. (starting from microversion 2.57)

• trusted_image_certificates – A list of trusted certificate IDs or None to unset/reset the servers trusted image certificates (starting from microversion 2.63)

• hostname – Optional hostname to configure for the instance. If None is specified, the existing hostname will be unset. (starting from microversion 2.90)

Returns

Server

remove_security_group(server, security_group)¶

Remove a Security Group to an instance

Parameters

• server – ID of the instance.

• security_group – The name of security group to remove.

Returns

An instance of novaclient.base.TupleWithMeta

rescue(server, password=None, image=None)¶

Rescue the server.

Parameters

• server – The Server to rescue.

• password – The admin password to be set in the rescue instance.

• image – The Image to rescue with.

Returns

An instance of novaclient.base.TupleWithMeta

reset_network(server)¶

Reset network of an instance.

Parameters

server – The Server for network is to be reset

Returns

An instance of novaclient.base.TupleWithMeta

reset_state(server, state='error')¶

Reset the state of an instance to active or error.

Parameters

• server – ID of the instance to reset the state of.

• state – Desired state; either ‘active’ or ‘error’. Defaults to ‘error’.

Returns

An instance of novaclient.base.TupleWithMeta

resize(server, flavor, disk_config=None, **kwargs)¶

Resize a server’s resources.

Parameters

• server – The Server (or its ID) to share onto.

• flavor – the Flavor (or its ID) to resize to.

• disk_config – partitioning mode to use on the rebuilt server. Valid values are ‘AUTO’ or ‘MANUAL’

Returns

An instance of novaclient.base.TupleWithMeta

Until a resize event is confirmed with confirm_resize(), the old server will be kept around and you’ll be able to roll back to the old flavor quickly with revert_resize(). All resizes are automatically confirmed after 24 hours.

resource_class¶

alias of Server

restore(server)¶

Restore soft-deleted server.

Parameters

server – The Server (or its ID) to restore

Returns

An instance of novaclient.base.TupleWithMeta

resume(server)¶

Resume the server.

Parameters

server – The Server (or its ID) to resume

Returns

An instance of novaclient.base.TupleWithMeta

revert_resize(server)¶

Revert a previous resize, switching back to the old server.

Parameters

server – The Server (or its ID) to share onto.

Returns

An instance of novaclient.base.TupleWithMeta

set_meta(server, metadata)¶

Set a server’s metadata :param server: The Server to add metadata to :param metadata: A dict of metadata to be added to the server

set_meta_item(server, key, value)¶

Updates an item of server metadata :param server: The Server to add metadata to :param key: metadata key to update :param value: string value

set_tags(server, tags)¶

Set list of tags to an instance.

shelve(server)¶

Shelve the server.

Parameters

server – The Server (or its ID) to shelve

Returns

An instance of novaclient.base.TupleWithMeta

shelve_offload(server)¶

Remove a shelved instance from the compute node.

Parameters

server – The Server (or its ID) to shelve offload

Returns

An instance of novaclient.base.TupleWithMeta

start(server)¶

Start the server.

Parameters

server – The Server (or its ID) to start

Returns

An instance of novaclient.base.TupleWithMeta

stop(server)¶

Stop the server.

Parameters

server – The Server (or its ID) to stop

Returns

An instance of novaclient.base.TupleWithMeta

suspend(server)¶

Suspend the server.

Parameters

server – The Server (or its ID) to suspend

Returns

An instance of novaclient.base.TupleWithMeta

tag_list(server)¶

Get list of tags from an instance.

topology(server)¶

Retrieve server topology.

Parameters

server – The Server (or its ID) for which topology to be returned

Returns

An instance of novaclient.base.DictWithMeta

static transform_userdata(userdata)¶

trigger_crash_dump(server)¶

Trigger crash dump in an instance

unlock(server)¶

Unlock the server.

Parameters

server – The Server (or its ID) to unlock

Returns

An instance of novaclient.base.TupleWithMeta

unpause(server)¶

Unpause the server.

Parameters

server – The Server (or its ID) to unpause

Returns

An instance of novaclient.base.TupleWithMeta

unrescue(server)¶

Unrescue the server.

Parameters

server – The Server (or its ID) to unrescue

Returns

An instance of novaclient.base.TupleWithMeta

unshelve(server, availability_zone=<object object>, host=None)¶

Unshelve the server.

Parameters

• availability_zone – If specified the instance will be unshelved to the availability_zone. If None is passed the instance defined availability_zone is unpin and the instance will be scheduled to any availability_zone (free scheduling). If not specified the instance will be unshelved to either its defined availability_zone or any availability_zone (free scheduling).

• host – The specified host (Optional)

Returns

An instance of novaclient.base.TupleWithMeta

update(server, name=None, description=None, hostname=None)¶

Update attributes of a server.

Parameters

• server – The Server (or its ID) to update.

• name – Update the server’s name.

• description – Update the server’s description. If it equals to empty string(i.g. “”), the server description will be removed.

• hostname – Update the server’s hostname as recorded by the metadata service. Note that a separate utility running on the guest will be necessary to reflect these changes in the guest itself.

Returns

Server