nodedrain

Documentation

Index

• func Register(ctx context.Context, management *config.Management, options config.Options) error
• type ControllerHandler
  • func ActionHelper(nodeCache ctlcorev1.NodeCache, ...) *ControllerHandler
  • func (ndc *ControllerHandler) FindAndListNonMigratableVM(node *corev1.Node) ([]string, error)
  • func (ndc *ControllerHandler) FindAndListVM(node *corev1.Node) ([]string, error)
  • func (ndc *ControllerHandler) OnNodeChange(key string, node *corev1.Node) (*corev1.Node, error)

Functions

func Register

func Register(ctx context.Context, management *config.Management, options config.Options) error

Types

type ControllerHandler

type ControllerHandler struct {
	// contains filtered or unexported fields
}

ControllerHandler to drain nodes. the controller checks if node has any replicas which may be the only working replica for a VM and attempts to shutdown the VM before the drain is initiated. This ensures that no data is lost when the instance-managers are terminated as part of the drain process

func ActionHelper

func ActionHelper(nodeCache ctlcorev1.NodeCache, virtualMachineInstanceCache ctlkubevirtv1.VirtualMachineInstanceCache,
	longhornVolumeCache longhornv1beta1.VolumeCache, longhornReplicaCache longhornv1beta1.ReplicaCache) *ControllerHandler

func (*ControllerHandler) FindAndListNonMigratableVM

func (ndc *ControllerHandler) FindAndListNonMigratableVM(node *corev1.Node) ([]string, error)

FindAndListNonMigratableVM is called by action handler to leverage caches to find VM's which may have a cdrom or container disk attached to vmi

func (*ControllerHandler) FindAndListVM

func (ndc *ControllerHandler) FindAndListVM(node *corev1.Node) ([]string, error)

findAndListVM is called by action handler to leverage caches to find unhealthy VM's impacted by the migration

func (*ControllerHandler) OnNodeChange

func (ndc *ControllerHandler) OnNodeChange(key string, node *corev1.Node) (*corev1.Node, error)

OnNodeChange handles reconcile logic for node drains