The ironic.objects.node Module

class ironic.objects.node.Node(context=None, **kwargs)

Bases: ironic.objects.base.IronicObject, oslo_versionedobjects.base.VersionedObjectDictCompat

create(context=None)

Create a Node record in the DB.

Column-wise updates will be made based on the result of self.what_changed(). If target_power_state is provided, it will be checked against the in-database copy of the node before updates are made.

Parameters:context – Security context. NOTE: This should only be used internally by the indirection_api. Unfortunately, RPC requires context as the first argument, even though we don’t use it. A context should be set when instantiating the object, e.g.: Node(context) Raises:InvalidParameterValue if some property values are invalid.

destroy(context=None)

Delete the Node from the DB.

Parameters:context – Security context. NOTE: This should only be used internally by the indirection_api. Unfortunately, RPC requires context as the first argument, even though we don’t use it. A context should be set when instantiating the object, e.g.: Node(context)

classmethod get(context, node_id)

Find a node based on its id or uuid and return a Node object.

Parameters:node_id – the id or uuid of a node. Returns:a Node object.

classmethod get_by_id(context, node_id)

Find a node based on its integer id and return a Node object.

Parameters:node_id – the id of a node. Returns:a Node object.

classmethod get_by_instance_uuid(context, instance_uuid)

Find a node based on the instance uuid and return a Node object.

Parameters:uuid – the uuid of the instance. Returns:a Node object.

classmethod get_by_name(context, name)

Find a node based on name and return a Node object.

Parameters:name – the logical name of a node. Returns:a Node object.

classmethod get_by_uuid(context, uuid)

Find a node based on uuid and return a Node object.

Parameters:uuid – the uuid of a node. Returns:a Node object.

classmethod list(context, limit=None, marker=None, sort_key=None, sort_dir=None, filters=None)

Return a list of Node objects.

Parameters:

• context – Security context.
• limit – maximum number of resources to return in a single result.
• marker – pagination marker for large data sets.
• sort_key – column to sort results by.
• sort_dir – direction to sort. “asc” or “desc”.
• filters – Filters to apply.

Returns:

a list of Node object.

refresh(context=None)

Refresh the object by re-fetching from the DB.

Parameters:context – Security context. NOTE: This should only be used internally by the indirection_api. Unfortunately, RPC requires context as the first argument, even though we don’t use it. A context should be set when instantiating the object, e.g.: Node(context)

classmethod release(context, tag, node_id)

Release the reservation on a node.

Parameters:

• context – Security context.
• tag – A string uniquely identifying the reservation holder.
• node_id – A node id or uuid.

Raises:

NodeNotFound if the node is not found.

classmethod reserve(context, tag, node_id)

Get and reserve a node.

To prevent other ManagerServices from manipulating the given Node while a Task is performed, mark it reserved by this host.

Parameters:

• context – Security context.
• tag – A string uniquely identifying the reservation holder.
• node_id – A node id or uuid.

Raises:

NodeNotFound if the node is not found.

Returns:

a Node object.

save(context=None)

Save updates to this Node.

Column-wise updates will be made based on the result of self.what_changed(). If target_power_state is provided, it will be checked against the in-database copy of the node before updates are made.

Parameters:context – Security context. NOTE: This should only be used internally by the indirection_api. Unfortunately, RPC requires context as the first argument, even though we don’t use it. A context should be set when instantiating the object, e.g.: Node(context) Raises:InvalidParameterValue if some property values are invalid.

touch_provisioning(context=None)

Touch the database record to mark the provisioning as alive.