Part of libcloud.compute.drivers.dummy View Source View In Hierarchy
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'
| Method | __init__ | @param creds: Credentials @type creds: C{str} |
| Method | get_uuid | @param unique_field: Unique field @type unique_field: C{bool} @rtype: L{UUID} |
| Method | list_nodes | List the nodes known to a particular driver; There are two default nodes created at the beginning |
| Method | reboot_node | Sets the node state to rebooting; in this dummy driver always returns True as if the reboot had been successful. |
| Method | destroy_node | Sets the node state to terminated and removes it from the node list |
| Method | list_images | Returns a list of images as a cloud provider might have |
| Method | list_sizes | Returns a list of node sizes as a cloud provider might have |
| Method | list_locations | Returns a list of locations of nodes |
| Method | create_node | Creates a dummy node; the node id is equal to the number of nodes in the node list |
Inherited from NodeDriver:
| Method | deploy_node | Create a new node, and start deployment. |
| Method | create_volume | Create a new volume. |
| Method | destroy_volume | Destroys a storage volume. |
| Method | attach_volume | Attaches volume to node. |
| Method | detach_volume | Detaches a volume from a node. |
| Method | wait_until_running | Block until the given nodes are fully booted and have an IP address assigned. |
| Method | _wait_until_running | Undocumented |
| Method | _ssh_client_connect | Try to connect to the remote SSH server. If a connection times out or is refused it is retried up to timeout number of seconds. |
| Method | _connect_and_run_deployment_script | Undocumented |
| Method | _run_deployment_script | Run the deployment script on the provided node. At this point it is assumed that SSH connection has already been established. |
| Method | _get_size_price | Undocumented |
Inherited from BaseDriver (via NodeDriver):
| Method | _ex_connection_class_kwargs | Return extra connection keyword arguments which are passed to the Connection class constructor. |
@param unique_field: Unique field
@type unique_field: C{bool}
@rtype: L{UUID}
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([node.name for node in driver.list_nodes()])
['dummy-1', 'dummy-2', 'dummy-3']
@inherits: L{NodeDriver.list_nodes}
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: L{NodeDriver.reboot_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
>>> [node for node in driver.list_nodes() if node.name == 'dummy-1']
[]
@inherits: L{NodeDriver.destroy_node}
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: L{NodeDriver.list_images}
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: L{NodeDriver.list_images}
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: L{NodeDriver.list_locations}
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: L{NodeDriver.create_node}