disruption

package
v0.33.5 Latest Latest
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 Go to latest Published: Mar 22, 2024 License: Apache-2.0 Imports: 39 Imported by: 0

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Index

Constants

View Source 
const MultiNodeConsolidationTimeoutDuration = 1 * time.Minute
View Source 
const SingleNodeConsolidationTimeoutDuration = 3 * time.Minute

Variables

This section is empty.

Functions

func GetPodEvictionCost 

func GetPodEvictionCost(ctx context.Context, p *v1.Pod) float64

GetPodEvictionCost returns the disruption cost computed for evicting the given pod.

Types

type Action 

type Action string
var (
	NoOpAction    Action = "no-op"
	ReplaceAction Action = "replace"
	DeleteAction  Action = "delete"
)

type Candidate 

type Candidate struct {
	*state.StateNode
	// contains filtered or unexported fields
}

Candidate is a state.StateNode that we are considering for disruption along with extra information to be used in making that determination

func GetCandidates 

func GetCandidates(ctx context.Context, cluster *state.Cluster, kubeClient client.Client, recorder events.Recorder, clk clock.Clock,
	cloudProvider cloudprovider.CloudProvider, shouldDeprovision CandidateFilter, queue *orchestration.Queue) ([]*Candidate, error)

GetCandidates returns nodes that appear to be currently deprovisionable based off of their nodePool

func NewCandidate 

func NewCandidate(ctx context.Context, kubeClient client.Client, recorder events.Recorder, clk clock.Clock, node *state.StateNode,
	nodePoolMap map[string]*v1beta1.NodePool, nodePoolToInstanceTypesMap map[string]map[string]*cloudprovider.InstanceType, queue *orchestration.Queue) (*Candidate, error)

type CandidateFilter 

type CandidateFilter func(context.Context, *Candidate) bool

type Command 

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

func (Command) Action 

func (o Command) Action() Action

func (Command) String 

func (o Command) String() string

type Controller 

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

func NewController 

func NewController(clk clock.Clock, kubeClient client.Client, provisioner *provisioning.Provisioner,
	cp cloudprovider.CloudProvider, recorder events.Recorder, cluster *state.Cluster, queue *orchestration.Queue) *Controller

func (*Controller) Builder 

func (c *Controller) Builder(_ context.Context, m manager.Manager) controller.Builder

func (*Controller) Name 

func (c *Controller) Name() string

func (*Controller) Reconcile 

func (c *Controller) Reconcile(ctx context.Context, _ reconcile.Request) (reconcile.Result, error)

type Drift 

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

Drift is a subreconciler that deletes drifted candidates.

func NewDrift 

func NewDrift(kubeClient client.Client, cluster *state.Cluster, provisioner *provisioning.Provisioner, recorder events.Recorder) *Drift

func (*Drift) ComputeCommand 

func (d *Drift) ComputeCommand(ctx context.Context, candidates ...*Candidate) (Command, error)

ComputeCommand generates a disruption command given candidates

func (*Drift) ConsolidationType 

func (d *Drift) ConsolidationType() string

func (*Drift) ShouldDisrupt 

func (d *Drift) ShouldDisrupt(ctx context.Context, c *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*Drift) Type 

func (d *Drift) Type() string

type Emptiness 

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

Emptiness is a subreconciler that deletes empty candidates. Emptiness will respect TTLSecondsAfterEmpty

func NewEmptiness 

func NewEmptiness(clk clock.Clock) *Emptiness

func (*Emptiness) ComputeCommand 

func (e *Emptiness) ComputeCommand(_ context.Context, candidates ...*Candidate) (Command, error)

ComputeCommand generates a disruption command given candidates

func (*Emptiness) ConsolidationType 

func (e *Emptiness) ConsolidationType() string

func (*Emptiness) ShouldDisrupt 

func (e *Emptiness) ShouldDisrupt(_ context.Context, c *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*Emptiness) Type 

func (e *Emptiness) Type() string

type EmptyNodeConsolidation 

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

EmptyNodeConsolidation is the consolidation controller that performs multi-nodeclaim consolidation of entirely empty nodes

func NewEmptyNodeConsolidation 

func NewEmptyNodeConsolidation(consolidation consolidation) *EmptyNodeConsolidation

func (*EmptyNodeConsolidation) ComputeCommand 

func (c *EmptyNodeConsolidation) ComputeCommand(ctx context.Context, candidates ...*Candidate) (Command, error)

ComputeCommand generates a disruption command given candidates

func (*EmptyNodeConsolidation) ConsolidationType 

func (c *EmptyNodeConsolidation) ConsolidationType() string

func (*EmptyNodeConsolidation) ShouldDisrupt 

func (c *EmptyNodeConsolidation) ShouldDisrupt(_ context.Context, cn *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*EmptyNodeConsolidation) Type 

func (c *EmptyNodeConsolidation) Type() string

type Expiration 

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

Expiration is a subreconciler that deletes empty candidates. Expiration will respect TTLSecondsAfterEmpty

func NewExpiration 

func NewExpiration(clk clock.Clock, kubeClient client.Client, cluster *state.Cluster, provisioner *provisioning.Provisioner, recorder events.Recorder) *Expiration

func (*Expiration) ComputeCommand 

func (e *Expiration) ComputeCommand(ctx context.Context, candidates ...*Candidate) (Command, error)

ComputeCommand generates a disrpution command given candidates

func (*Expiration) ConsolidationType 

func (e *Expiration) ConsolidationType() string

func (*Expiration) ShouldDisrupt 

func (e *Expiration) ShouldDisrupt(_ context.Context, c *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*Expiration) Type 

func (e *Expiration) Type() string

type Method 

type Method interface {
	ShouldDisrupt(context.Context, *Candidate) bool
	ComputeCommand(context.Context, ...*Candidate) (Command, error)
	Type() string
	ConsolidationType() string
}

type MultiNodeConsolidation 

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

func NewMultiNodeConsolidation 

func NewMultiNodeConsolidation(consolidation consolidation) *MultiNodeConsolidation

func (*MultiNodeConsolidation) ComputeCommand 

func (m *MultiNodeConsolidation) ComputeCommand(ctx context.Context, candidates ...*Candidate) (Command, error)

func (*MultiNodeConsolidation) ConsolidationType 

func (m *MultiNodeConsolidation) ConsolidationType() string

func (*MultiNodeConsolidation) ShouldDisrupt 

func (c *MultiNodeConsolidation) ShouldDisrupt(_ context.Context, cn *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*MultiNodeConsolidation) Type 

func (m *MultiNodeConsolidation) Type() string

type PDBLimits 

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

PDBLimits is used to evaluate if evicting a list of pods is possible.

func NewPDBLimits 

func NewPDBLimits(ctx context.Context, kubeClient client.Client) (*PDBLimits, error)

func (*PDBLimits) CanEvictPods 

func (s *PDBLimits) CanEvictPods(pods []*v1.Pod) (client.ObjectKey, bool)

CanEvictPods returns true if every pod in the list is evictable. They may not all be evictable simultaneously, but for every PDB that controls the pods at least one pod can be evicted.

type SingleNodeConsolidation 

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

SingleNodeConsolidation is the consolidation controller that performs single-node consolidation.

func NewSingleNodeConsolidation 

func NewSingleNodeConsolidation(consolidation consolidation) *SingleNodeConsolidation

func (*SingleNodeConsolidation) ComputeCommand 

func (s *SingleNodeConsolidation) ComputeCommand(ctx context.Context, candidates ...*Candidate) (Command, error)

ComputeCommand generates a disruption command given candidates nolint:gocyclo

func (*SingleNodeConsolidation) ConsolidationType 

func (s *SingleNodeConsolidation) ConsolidationType() string

func (*SingleNodeConsolidation) ShouldDisrupt 

func (c *SingleNodeConsolidation) ShouldDisrupt(_ context.Context, cn *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*SingleNodeConsolidation) Type 

func (s *SingleNodeConsolidation) Type() string

type Validation 

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

Validation is used to perform validation on a consolidation command. It makes an assumption that when re-used, all of the commands passed to IsValid were constructed based off of the same consolidation state. This allows it to skip the validation TTL for all but the first command.

func NewValidation 

func NewValidation(validationPeriod time.Duration, clk clock.Clock, cluster *state.Cluster, kubeClient client.Client, provisioner *provisioning.Provisioner,
	cp cloudprovider.CloudProvider, recorder events.Recorder, queue *orchestration.Queue) *Validation

func (*Validation) IsValid 

func (v *Validation) IsValid(ctx context.Context, cmd Command) (bool, error)

func (*Validation) ShouldDisrupt 

func (v *Validation) ShouldDisrupt(_ context.Context, c *Candidate) bool

ShouldDisrupt is a predicate used to filter candidates

func (*Validation) ValidateCommand 

func (v *Validation) ValidateCommand(ctx context.Context, cmd Command, candidates []*Candidate) (bool, error)

ValidateCommand validates a command for a Method

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