cloudprovider

package
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Published: Dec 3, 2016 License: Apache-2.0 Imports: 1 Imported by: 0

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Types

type CloudProvider

type CloudProvider interface {
	// Name returns name of the cloud provider.
	Name() string

	// NodeGroups returns all node groups configured for this cloud provider.
	NodeGroups() []NodeGroup

	// NodeGroupForNode returns the node group for the given node, nil if the node
	// should not be processed by cluster autoscaler, or non-nil error if such
	// occurred.
	NodeGroupForNode(*kube_api.Node) (NodeGroup, error)
}

CloudProvider contains configuration info and functions for interacting with cloud provider (GCE, AWS, etc).

type NodeGroup

type NodeGroup interface {
	// MaxSize returns maximum size of the node group.
	MaxSize() int

	// MinSize returns minimum size of the node group.
	MinSize() int

	// TargetSize returns the current target size of the node group. It is possible that the
	// number of nodes in Kubernetes is different at the moment but should be equal
	// to Size() once everything stabilizes (new nodes finish startup and registration or
	// removed nodes are deleted completely)
	TargetSize() (int, error)

	// IncreaseSize increases the size of the node group. To delete a node you need
	// to explicitly name it and use DeleteNode. This function should wait until
	// node group size is updated.
	IncreaseSize(delta int) error

	// DeleteNodes deletes nodes from this node group. Error is returned either on
	// failure or if the given node doesn't belong to this node group. This function
	// should wait until node group size is updated.
	DeleteNodes([]*kube_api.Node) error

	// Id returns an unique identifier of the node group.
	Id() string

	// Debug returns a string containing all information regarding this node group.
	Debug() string
}

NodeGroup contains configuration info and functions to control a set of nodes that have the same capacity and set of labels.

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