libcloud.compute.drivers.dummy module

Dummy Driver

@note: This driver is out of date

class libcloud.compute.drivers.dummy.DummyConnection(key, secure=True, host=None, port=None, url=None, timeout=None, proxy_url=None, backoff=None, retry_delay=None)

Bases: ConnectionKey

Dummy connection class

Initialize user_id and key; set secure to an int based on passed value.

connect(host=None, port=None)

Establish a connection with the API server.

Parameters:

• host (str) – Optional host to override our default

• port (int) – Optional port to override our default

Returns:

A connection

class libcloud.compute.drivers.dummy.DummyNodeDriver(creds)

Bases: NodeDriver

Dummy node driver

This is a fake driver which appears to always create or destroy nodes successfully.

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> node=driver.create_node()
>>> node.public_ips[0]
'127.0.0.3'
>>> node.name
'dummy-3'

If the credentials you give convert to an integer then the next node to be created will be one higher.

Each time you create a node you will get a different IP address.

>>> driver = DummyNodeDriver(22)
>>> node=driver.create_node()
>>> node.name
'dummy-23'

Parameters:

creds (str) – Credentials

Return type:

None

create_node(name, size, image)

Creates a dummy node; the node id is equal to the number of nodes in the node list

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> sorted([node.name for node in driver.list_nodes()])
['dummy-1', 'dummy-2']
>>> nodeA = driver.create_node()
>>> sorted([node.name for node in driver.list_nodes()])
['dummy-1', 'dummy-2', 'dummy-3']
>>> driver.create_node().name
'dummy-4'
>>> driver.destroy_node(nodeA)
True
>>> sorted([node.name for node in driver.list_nodes()])
['dummy-1', 'dummy-2', 'dummy-4']

@inherits: NodeDriver.create_node

destroy_node(node)

Sets the node state to terminated and removes it from the node list

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> from libcloud.compute.types import NodeState
>>> node = [node for node in driver.list_nodes() if
...         node.name == 'dummy-1'][0]
>>> node.state == NodeState.RUNNING
True
>>> driver.destroy_node(node)
True
>>> node.state == NodeState.RUNNING
False
>>> [n for n in driver.list_nodes() if n.name == 'dummy-1']
[]

@inherits: NodeDriver.destroy_node

get_uuid(unique_field=None)

Parameters:

unique_field (bool) – Unique field

Return type:

UUID

import_key_pair_from_string(name, key_material)

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)

Returns a list of images as a cloud provider might have

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> sorted([image.name for image in driver.list_images()])
['Slackware 4', 'Ubuntu 9.04', 'Ubuntu 9.10']

@inherits: NodeDriver.list_images

list_locations()

Returns a list of locations of nodes

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> sorted([loc.name + " in " + loc.country for loc in
...         driver.list_locations()])
['Island Datacenter in FJ', 'London Loft in GB', "Paul's Room in US"]

@inherits: NodeDriver.list_locations

list_nodes()

List the nodes known to a particular driver; There are two default nodes created at the beginning

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> node_list=driver.list_nodes()
>>> sorted([node.name for node in node_list ])
['dummy-1', 'dummy-2']

each item in the list returned is a node object from which you can carry out any node actions you wish

>>> node_list[0].reboot()
True

As more nodes are added, list_nodes will return them

>>> node=driver.create_node()
>>> node.size.id
's1'
>>> node.image.id
'i2'
>>> sorted([n.name for n in driver.list_nodes()])
['dummy-1', 'dummy-2', 'dummy-3']

@inherits: NodeDriver.list_nodes

list_sizes(location=None)

Returns a list of node sizes as a cloud provider might have

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> sorted([size.ram for size in driver.list_sizes()])
[128, 512, 4096, 8192]

@inherits: NodeDriver.list_images

name: str = 'Dummy Node Provider'

reboot_node(node)

Sets the node state to rebooting; in this dummy driver always returns True as if the reboot had been successful.

>>> from libcloud.compute.drivers.dummy import DummyNodeDriver
>>> driver = DummyNodeDriver(0)
>>> node=driver.create_node()
>>> from libcloud.compute.types import NodeState
>>> node.state == NodeState.RUNNING
True
>>> node.state == NodeState.REBOOTING
False
>>> driver.reboot_node(node)
True
>>> node.state == NodeState.REBOOTING
True

Please note, dummy nodes never recover from the reboot.

@inherits: NodeDriver.reboot_node

type: Provider | str = 'dummy'

website: str = 'http://example.com'