fieldmanager

package
Version: v0.0.0-...-d88c8b5 Latest Latest
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Published: Feb 9, 2021 License: Apache-2.0 Imports: 15 Imported by: 0

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Constants

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const DefaultMaxUpdateManagers int = 10

DefaultMaxUpdateManagers defines the default maximum retained number of managedFields entries from updates if the number of update managers exceeds this, the oldest entries will be merged until the number is below the maximum. TODO(jennybuckley): Determine if this is really the best value. Ideally we wouldn't unnecessarily merge too many entries.

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const DefaultTrackOnCreateProbability float32 = 1

DefaultTrackOnCreateProbability defines the default probability that the field management of an object starts being tracked from the object's creation, instead of from the first time the object is applied to.

Variables

This section is empty.

Functions

This section is empty.

Types

type FieldManager

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

FieldManager updates the managed fields and merge applied configurations.

func NewDefaultCRDFieldManager

func NewDefaultCRDFieldManager(models openapiproto.Models, objectConverter runtime.ObjectConvertor, objectDefaulter runtime.ObjectDefaulter, objectCreater runtime.ObjectCreater, kind schema.GroupVersionKind, hub schema.GroupVersion, preserveUnknownFields bool) (_ *FieldManager, err error)

NewDefaultCRDFieldManager creates a new FieldManager specifically for CRDs. This allows for the possibility of fields which are not defined in models, as well as having no models defined at all.

func NewDefaultFieldManager

func NewDefaultFieldManager(models openapiproto.Models, objectConverter runtime.ObjectConvertor, objectDefaulter runtime.ObjectDefaulter, objectCreater runtime.ObjectCreater, kind schema.GroupVersionKind, hub schema.GroupVersion) (*FieldManager, error)

NewDefaultFieldManager creates a new FieldManager that merges apply requests and update managed fields for other types of requests.

func NewFieldManager

func NewFieldManager(f Manager) *FieldManager

NewFieldManager creates a new FieldManager that decodes, manages, then re-encodes managedFields on update and apply requests.

func (*FieldManager) Apply

func (f *FieldManager) Apply(liveObj, appliedObj runtime.Object, manager string, force bool) (object runtime.Object, err error)

Apply is used when server-side apply is called, as it merges the object and updates the managed fields.

func (*FieldManager) Update

func (f *FieldManager) Update(liveObj, newObj runtime.Object, manager string) (object runtime.Object, err error)

Update is used when the object has already been merged (non-apply use-case), and simply updates the managed fields in the output object.

func (*FieldManager) UpdateNoErrors

func (f *FieldManager) UpdateNoErrors(liveObj, newObj runtime.Object, manager string) runtime.Object

UpdateNoErrors is the same as Update, but it will not return errors. If an error happens, the object is returned with managedFields cleared.

type Managed

type Managed interface {
	// Fields gets the fieldpath.ManagedFields.
	Fields() fieldpath.ManagedFields

	// Times gets the timestamps associated with each operation.
	Times() map[string]*metav1.Time
}

Managed groups a fieldpath.ManagedFields together with the timestamps associated with each operation.

type Manager

type Manager interface {
	// Update is used when the object has already been merged (non-apply
	// use-case), and simply updates the managed fields in the output
	// object.
	Update(liveObj, newObj runtime.Object, managed Managed, manager string) (runtime.Object, Managed, error)

	// Apply is used when server-side apply is called, as it merges the
	// object and updates the managed fields.
	Apply(liveObj, appliedObj runtime.Object, managed Managed, fieldManager string, force bool) (runtime.Object, Managed, error)
}

Manager updates the managed fields and merges applied configurations.

func NewBuildManagerInfoManager

func NewBuildManagerInfoManager(f Manager, gv schema.GroupVersion) Manager

NewBuildManagerInfoManager creates a new Manager that converts the manager name into a unique identifier combining operation and version for update requests, and just operation for apply requests.

func NewCRDStructuredMergeManager

func NewCRDStructuredMergeManager(models openapiproto.Models, objectConverter runtime.ObjectConvertor, objectDefaulter runtime.ObjectDefaulter, gv schema.GroupVersion, hub schema.GroupVersion, preserveUnknownFields bool) (_ Manager, err error)

NewCRDStructuredMergeManager creates a new Manager specifically for CRDs. This allows for the possibility of fields which are not defined in models, as well as having no models defined at all.

func NewCapManagersManager

func NewCapManagersManager(fieldManager Manager, maxUpdateManagers int) Manager

NewCapManagersManager creates a new wrapped FieldManager which ensures that the number of managers from updates does not exceed maxUpdateManagers, by merging some of the oldest entries on each update.

func NewManagedFieldsUpdater

func NewManagedFieldsUpdater(fieldManager Manager) Manager

NewManagedFieldsUpdater is responsible for updating the managedfields in the object, updating the time of the operation as necessary. For updates, it uses a hard-coded manager to detect if things have changed, and swaps back the correct manager after the operation is done.

func NewProbabilisticSkipNonAppliedManager

func NewProbabilisticSkipNonAppliedManager(fieldManager Manager, objectCreater runtime.ObjectCreater, gvk schema.GroupVersionKind, p float32) Manager

NewProbabilisticSkipNonAppliedManager creates a new wrapped FieldManager that starts tracking managers after the first apply, or starts tracking on create with p probability.

func NewSkipNonAppliedManager

func NewSkipNonAppliedManager(fieldManager Manager, objectCreater runtime.ObjectCreater, gvk schema.GroupVersionKind) Manager

NewSkipNonAppliedManager creates a new wrapped FieldManager that only starts tracking managers after the first apply.

func NewStripMetaManager

func NewStripMetaManager(fieldManager Manager) Manager

NewStripMetaManager creates a new Manager that strips metadata and typemeta fields from the manager's fieldset.

func NewStructuredMergeManager

func NewStructuredMergeManager(models openapiproto.Models, objectConverter runtime.ObjectConvertor, objectDefaulter runtime.ObjectDefaulter, gv schema.GroupVersion, hub schema.GroupVersion) (Manager, error)

NewStructuredMergeManager creates a new Manager that merges apply requests and update managed fields for other types of requests.

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