VMware vCloud Driver Documentation¶

API Docs¶

class libcloud.compute.drivers.vcloud.VCloudNodeDriver(key, secret=None, secure=True, host=None, port=None, api_version='0.8', **kwargs)[source]¶

vCloud node driver

Parameters:

key (str) – API key or username to be used (required)
secret (str) – Secret password to be used (required)
secure (bool) – Whether to use HTTPS or HTTP. Note: Some providers only support HTTPS, and it is on by default.
host (str) – Override hostname used for connections.
port (int) – Override port used for connections.
api_version (str) – Optional API version. Only used by drivers which support multiple API versions.
region (str) – Optional driver region. Only used by drivers which support multiple regions.

Return type:

None

attach_volume(node: Node, volume: StorageVolume, device: Optional[str] = None) → bool¶

Attaches volume to node.

Parameters:

node (Node) – Node to attach volume to.
volume (StorageVolume) – Volume to attach.
device (str) – Where the device is exposed, e.g. ‘/dev/sdb’

Rytpe:

bool

connectionCls¶: alias of VCloudConnection

copy_image(source_region: str, node_image: NodeImage, name: str, description: Optional[str] = None) → NodeImage¶

Copies an image from a source region to the current region.

Parameters:

source_region (str) – Region to copy the node from.
node_image (NodeImage:) – NodeImage to copy.
name (str) – name for new image.
description – description for new image.

Return type:

NodeImage:

Returns:

NodeImage instance on success.

create_image(node: Node, name: str, description: Optional[str] = None) → List[NodeImage]¶

Creates an image from a node object.

Parameters:

node (Node) – Node to run the task on.
name (description) – name for new image.
description – description for new image.

Return type:

NodeImage:

Returns:

NodeImage instance on success.

create_key_pair(name: str) → KeyPair¶

Create a new key pair object.

Parameters:: name (str) – Key pair name.
Return type:: KeyPair object

create_node(name, size, image, auth=None, ex_network=None, ex_vdc=None, ex_cpus=1, ex_row=None, ex_group=None)[source]¶

Creates and returns node.

Parameters:

ex_network (str) – link to a “Network” e.g., https://services.vcloudexpress...
ex_vdc (str) – Name of organisation’s virtual data center where vApp VMs will be deployed.
ex_cpus (int) – number of virtual cpus (limit depends on provider)

create_volume(size: int, name: str, location=None, snapshot=None) → StorageVolume¶

Create a new volume.

Parameters:

size (int) – Size of volume in gigabytes (required)
name (str) – Name of the volume to be created
location (NodeLocation) – Which data center to create a volume in. If empty, undefined behavior will be selected. (optional)
snapshot (VolumeSnapshot) – Snapshot from which to create the new volume. (optional)

Returns:

The newly created volume.

Return type:

StorageVolume

create_volume_snapshot(volume: StorageVolume, name: Optional[str] = None) → VolumeSnapshot¶

Creates a snapshot of the storage volume.

Parameters:

volume (StorageVolume) – The StorageVolume to create a VolumeSnapshot from
name (str) – Name of created snapshot (optional)

Return type:

VolumeSnapshot

delete_image(node_image: NodeImage) → bool¶

Deletes a node image from a provider.

Parameters:: node_image (NodeImage) – Node image object.
Returns:: True if delete_image was successful, False otherwise.
Return type:: bool

delete_key_pair(key_pair: KeyPair) → bool¶

Delete an existing key pair.

Parameters:: key_pair (KeyPair) – Key pair object.
Return type:: bool

deploy_node(deploy: Deployment, ssh_username: str = 'root', ssh_alternate_usernames: Optional[List[str]] = None, ssh_port: int = 22, ssh_timeout: int = 10, ssh_key: Optional[T_Ssh_key] = None, ssh_key_password: Optional[str] = None, auth: T_Auth = None, timeout: int = 300, max_tries: int = 3, ssh_interface: str = 'public_ips', at_exit_func: Callable = None, wait_period: int = 5, **create_node_kwargs) → Node¶

Create a new node, and start deployment.

In order to be able to SSH into a created node access credentials are required.

A user can pass either a NodeAuthPassword or NodeAuthSSHKey to the auth argument. If the create_node implementation supports that kind if credential (as declared in self.features['create_node']) then it is passed on to create_node. Otherwise it is not passed on to create_node and it is only used for authentication.

If the auth parameter is not supplied but the driver declares it supports generates_password then the password returned by create_node will be used to SSH into the server.

Finally, if the ssh_key_file is supplied that key will be used to SSH into the server.

This function may raise a DeploymentException, if a create_node call was successful, but there is a later error (like SSH failing or timing out). This exception includes a Node object which you may want to destroy if incomplete deployments are not desirable.

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> from libcloud.compute.deployment import ScriptDeployment
>>> from libcloud.compute.deployment import MultiStepDeployment
>>> from libcloud.compute.base import NodeAuthSSHKey
>>> driver = DummyNodeDriver(0)
>>> key = NodeAuthSSHKey('...') # read from file
>>> script = ScriptDeployment("yum -y install emacs strace tcpdump")
>>> msd = MultiStepDeployment([key, script])
>>> def d():
...     try:
...         driver.deploy_node(deploy=msd)
...     except NotImplementedError:
...         print ("not implemented for dummy driver")
>>> d()
not implemented for dummy driver

Deploy node is typically not overridden in subclasses. The existing implementation should be able to handle most such.

Parameters:

deploy (Deployment) – Deployment to run once machine is online and available to SSH.
ssh_username (str) – Optional name of the account which is used when connecting to SSH server (default is root)
ssh_alternate_usernames (list) – Optional list of ssh usernames to try to connect with if using the default one fails
ssh_port (int) – Optional SSH server port (default is 22)
ssh_timeout (float) – Optional SSH connection timeout in seconds (default is 10)
auth (NodeAuthSSHKey or NodeAuthPassword) – Initial authentication information for the node (optional)
ssh_key (str or list of str) – A path (or paths) to an SSH private key with which to attempt to authenticate. (optional)
ssh_key_password (str) – Optional password used for encrypted keys.
timeout (int) – How many seconds to wait before timing out. (default is 600)
max_tries (int) – How many times to retry if a deployment fails before giving up (default is 3)
ssh_interface (str) – The interface to wait for. Default is ‘public_ips’, other option is ‘private_ips’.
at_exit_func (func) –
Optional atexit handler function which will be registered and called with created node if user cancels the deploy process (e.g. CTRL+C), after the node has been created, but before the deploy process has finished.

This method gets passed in two keyword arguments:
- driver -> node driver in question
- node -> created Node object
Keep in mind that this function will only be called in such scenario. In case the method finishes (this includes throwing an exception), at exit handler function won’t be called.
wait_period (int) – How many seconds to wait between each iteration while waiting for node to transition into running state and have IP assigned. (default is 5)

destroy_node(node)[source]¶

Destroy a node.

Depending upon the provider, this may destroy all data associated with the node, including backups.

Parameters:: node (Node) – The node to be destroyed
Returns:: True if the destroy was successful, False otherwise.
Return type:: bool

destroy_volume(volume: StorageVolume) → bool¶

Destroys a storage volume.

Parameters:: volume (StorageVolume) – Volume to be destroyed
Return type:: bool

destroy_volume_snapshot(snapshot: VolumeSnapshot) → bool¶

Destroys a snapshot.

Parameters:: snapshot (VolumeSnapshot) – The snapshot to delete
Return type:: bool

detach_volume(volume: StorageVolume) → bool¶

Detaches a volume from a node.

Parameters:: volume (StorageVolume) – Volume to be detached
Return type:: bool

ex_list_nodes(vdcs=None)[source]¶

List all nodes across all vDCs. Using ‘vdcs’ you can specify which vDCs should be queried.

Parameters:: vdcs (Vdc) – None, vDC or a list of vDCs to query. If None all vDCs will be queried.
Return type:: list of Node

features: Dict[str, List[str]] = {'create_node': ['password']}¶

List of available features for a driver.

libcloud.compute.base.NodeDriver.create_node()
- ssh_key: Supports NodeAuthSSHKey as an authentication method for nodes.
- password: Supports NodeAuthPassword as an authentication method for nodes.
- generates_password: Returns a password attribute on the Node object returned from creation.

get_image(image_id: str) → NodeImage¶

Returns a single node image from a provider.

Parameters:: image_id (str) – Node to run the task on.

:rtype NodeImage: :return: NodeImage instance on success.

get_key_pair(name: str) → KeyPair¶

Retrieve a single key pair.

Parameters:: name (str) – Name of the key pair to retrieve.
Return type:: KeyPair

import_key_pair_from_file(name: str, key_file_path: str) → KeyPair¶

Import a new public key from string.

Parameters:

name (str) – Key pair name.
key_file_path (str) – Path to the public key file.

Return type:

KeyPair object

import_key_pair_from_string(name: str, key_material: str) → KeyPair¶

Import a new public key from string.

Parameters:

name (str) – Key pair name.
key_material (str) – Public key material.

Return type:

KeyPair object

list_images(location=None)[source]¶

List images on a provider.

Parameters:: location (NodeLocation) – The location at which to list images.
Returns:: list of node image objects.
Return type:: list of NodeImage

list_key_pairs() → List[KeyPair]¶

List all the available key pair objects.

Return type:: list of KeyPair objects

list_locations() → List[NodeLocation]¶

List data centers for a provider

Returns:: list of node location objects
Return type:: list of NodeLocation

list_nodes()[source]¶

List all nodes.

Returns:: list of node objects
Return type:: list of Node

list_sizes(location=None)[source]¶

List sizes on a provider

Parameters:: location (NodeLocation) – The location at which to list sizes
Returns:: list of node size objects
Return type:: list of NodeSize

list_volume_snapshots(volume: StorageVolume) → List[VolumeSnapshot]¶

List snapshots for a storage volume.

Return type:: list of VolumeSnapshot

list_volumes() → List[StorageVolume]¶

List storage volumes.

Return type:: list of StorageVolume

reboot_node(node)[source]¶

Reboot a node.

Parameters:: node (Node) – The node to be rebooted
Returns:: True if the reboot was successful, otherwise False
Return type:: bool

start_node(node: Node) → bool¶

Start a node.

Parameters:: node (Node) – The node to be started
Returns:: True if the start was successful, otherwise False
Return type:: bool

stop_node(node: Node) → bool¶

Stop a node

Parameters:: node (Node) – The node to be stopped.
Returns:: True if the stop was successful, otherwise False
Return type:: bool

property vdcs¶

vCloud virtual data centers (vDCs).

Returns:: list of vDC objects
Return type:: list of Vdc

wait_until_running(nodes: List[Node], wait_period: float = 5, timeout: int = 600, ssh_interface: str = 'public_ips', force_ipv4: bool = True, ex_list_nodes_kwargs: Optional[Dict] = None) → List[Tuple[Node, List[str]]]¶

Block until the provided nodes are considered running.

Node is considered running when it’s state is “running” and when it has at least one IP address assigned.

Parameters:

nodes (list of Node) – List of nodes to wait for.
wait_period (int) – How many seconds to wait between each loop iteration. (default is 3)
timeout (int) – How many seconds to wait before giving up. (default is 600)
ssh_interface (str) – Which attribute on the node to use to obtain an IP address. Valid options: public_ips, private_ips. Default is public_ips.
force_ipv4 (bool) – Ignore IPv6 addresses (default is True).
ex_list_nodes_kwargs (dict) – Optional driver-specific keyword arguments which are passed to the list_nodes method.

Returns:

[(Node, ip_addresses)] list of tuple of Node instance and list of ip_address on success.

Return type:

list of tuple