util

package
v0.3.5 Latest Latest
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 Go to latest Published: Mar 11, 2021 License: Apache-2.0 Imports: 32 Imported by: 6

Documentation

Index

Constants

View Source 
const (
	// TraitPrefixKey is prefix of trait name
	TraitPrefixKey = "trait"

	// Dummy used for dummy definition
	Dummy = "dummy"

	// DummyTraitMessage is a message for trait which don't have definition found
	DummyTraitMessage = "No TraitDefinition found, all framework capabilities will work as default"

	// DefinitionNamespaceEnv is env key for specifying a namespace to fetch definition
	DefinitionNamespaceEnv = "DEFINITION_NAMESPACE"
)
View Source 
const (
	// ErrUpdateStatus is the error while applying status.
	ErrUpdateStatus = "cannot apply status"
	// ErrLocateAppConfig is the error while locating parent application.
	ErrLocateAppConfig = "cannot locate the parent application configuration to emit event to"
	// ErrLocateWorkload is the error while locate the workload
	ErrLocateWorkload = "cannot find the workload that the trait is referencing to"
	// ErrFetchChildResources is the error while fetching workload child resources
	ErrFetchChildResources = "failed to fetch workload child resources"
)
View Source 
const (
	// AppDefinitionNamespace is context key to define app namespace
	AppDefinitionNamespace namespaceContextKey = iota
)

Variables

View Source 
var (
	// KindDeployment is the k8s Deployment kind.
	KindDeployment = reflect.TypeOf(appsv1.Deployment{}).Name()
	// KindService is the k8s Service kind.
	KindService = reflect.TypeOf(corev1.Service{}).Name()
	// ReconcileWaitResult is the time to wait between reconciliation.
	ReconcileWaitResult = reconcile.Result{RequeueAfter: 30 * time.Second}
)

Functions

func AddAnnotations 

func AddAnnotations(o *unstructured.Unstructured, annos map[string]string)

AddAnnotations will merge annotations with existing ones. If any conflict keys, use new value to override existing value.

func AddLabels 

func AddLabels(o *unstructured.Unstructured, labels map[string]string)

AddLabels will merge labels with existing labels. If any conflict keys, use new value to override existing value.

func BeEquivalentToError 

func BeEquivalentToError(expected error) types.GomegaMatcher

BeEquivalentToError matches the error to take care of nil.

func ComputeHash 

func ComputeHash(trait *v1alpha2.ComponentTrait) string

ComputeHash returns a hash value calculated from pod template and a collisionCount to avoid hash collision. The hash will be safe encoded to avoid bad words.

func ConvertTemplateJSON2Object added in v0.3.3 

func ConvertTemplateJSON2Object(in *runtime.RawExtension, specTemplate string) (types.Capability, error)

ConvertTemplateJSON2Object convert spec.extension to object

func DeepHashObject 

func DeepHashObject(hasher hash.Hash, objectToWrite interface{})

DeepHashObject writes specified object to hash using the spew library which follows pointers and prints actual values of the nested objects ensuring the hash does not change when a pointer changes.

func FetchScopeDefinition 

func FetchScopeDefinition(ctx context.Context, r client.Reader, dm discoverymapper.DiscoveryMapper,
	scope *unstructured.Unstructured) (*v1alpha2.ScopeDefinition, error)

FetchScopeDefinition fetch corresponding scopeDefinition given a scope

func FetchTraitDefinition 

func FetchTraitDefinition(ctx context.Context, r client.Reader, dm discoverymapper.DiscoveryMapper,
	trait *unstructured.Unstructured) (*v1alpha2.TraitDefinition, error)

FetchTraitDefinition fetch corresponding traitDefinition given a trait

func FetchWorkload 

func FetchWorkload(ctx context.Context, c client.Client, mLog logr.Logger, oamTrait oam.Trait) (
	*unstructured.Unstructured, error)

FetchWorkload fetch the workload that a trait refers to

func FetchWorkloadChildResources 

func FetchWorkloadChildResources(ctx context.Context, mLog logr.Logger, r client.Reader,
	dm discoverymapper.DiscoveryMapper, workload *unstructured.Unstructured) ([]*unstructured.Unstructured, error)

FetchWorkloadChildResources fetch corresponding child resources given a workload

func FetchWorkloadDefinition 

func FetchWorkloadDefinition(ctx context.Context, r client.Reader, dm discoverymapper.DiscoveryMapper,
	workload *unstructured.Unstructured) (*v1alpha2.WorkloadDefinition, error)

FetchWorkloadDefinition fetch corresponding workloadDefinition given a workload

func GenTraitName 

func GenTraitName(componentName string, ct *v1alpha2.ComponentTrait, traitType string) string

GenTraitName generate trait name

func GetComponent 

func GetComponent(ctx context.Context, client client.Reader, acc v1alpha2.ApplicationConfigurationComponent, namespace string) (*v1alpha2.Component, string, error)

GetComponent will get Component and RevisionName by AppConfigComponent

func GetDefinition added in v0.3.5 

func GetDefinition(ctx context.Context, cli client.Reader, definition runtime.Object, definitionName string) error

GetDefinition get definition from two level namespace

func GetDefinitionName 

func GetDefinitionName(dm discoverymapper.DiscoveryMapper, u *unstructured.Unstructured, typeLabel string) (string, error)

GetDefinitionName return the Definition name of any resources the format of the definition of a resource is <kind plurals>.<group> Now the definition name of a resource could also be defined as `definition.oam.dev/name` in `metadata.annotations` typeLabel specified which Definition it is, if specified, will directly get definition from label.

func GetDefinitionNamespaceWithCtx added in v0.3.5 

func GetDefinitionNamespaceWithCtx(ctx context.Context) string

GetDefinitionNamespaceWithCtx will get namespace from context, it will try get `AppDefinitionNamespace` key, if not found, will use default system level namespace defined in `systemvar.SystemDefinitonNamespace`

func GetDummyTraitDefinition 

func GetDummyTraitDefinition(u *unstructured.Unstructured) *v1alpha2.TraitDefinition

GetDummyTraitDefinition will generate a dummy TraitDefinition for CustomResource that won't block app from running. OAM runtime will report warning if they got this dummy definition.

func GetDummyWorkloadDefinition 

func GetDummyWorkloadDefinition(u *unstructured.Unstructured) *v1alpha2.WorkloadDefinition

GetDummyWorkloadDefinition will generate a dummy WorkloadDefinition for CustomResource that won't block app from running. OAM runtime will report warning if they got this dummy definition.

func GetGVKFromDefinition 

func GetGVKFromDefinition(dm discoverymapper.DiscoveryMapper, definitionRef v1alpha2.DefinitionReference) (schema.GroupVersionKind, error)

GetGVKFromDefinition help get Group Version Kind from DefinitionReference

func GetObjectGivenGVKAndName added in v0.3.1 

func GetObjectGivenGVKAndName(ctx context.Context, client client.Reader,
	gvk schema.GroupVersionKind, namespace, name string) (*unstructured.Unstructured, error)

GetObjectGivenGVKAndName fetches the kubernetes object given its gvk and name

func GetObjectsGivenGVKAndLabels added in v0.3.3 

func GetObjectsGivenGVKAndLabels(ctx context.Context, cli client.Reader,
	gvk schema.GroupVersionKind, namespace string, labels map[string]string) (*unstructured.UnstructuredList, error)

GetObjectsGivenGVKAndLabels fetches the kubernetes object given its gvk and labels by list API

func GetScopeGVK added in v0.3.1 

func GetScopeGVK(ctx context.Context, cli client.Reader, dm discoverymapper.DiscoveryMapper,
	name string) (schema.GroupVersionKind, error)

GetScopeGVK Get ScopeDefinition

func JSONMarshal 

func JSONMarshal(o interface{}) []byte

JSONMarshal returns the JSON encoding

func LocateParentAppConfig 

func LocateParentAppConfig(ctx context.Context, client client.Client, oamObject oam.Object) (oam.Object, error)

LocateParentAppConfig locate the parent application configuration object

func MergeMapOverrideWithDst 

func MergeMapOverrideWithDst(src, dst map[string]string) map[string]string

MergeMapOverrideWithDst merges two could be nil maps. If any conflicts, override src with dst.

func Object2Map 

func Object2Map(obj interface{}) (map[string]interface{}, error)

Object2Map turn the Object to a map

func Object2Unstructured 

func Object2Unstructured(obj interface{}) (*unstructured.Unstructured, error)

Object2Unstructured convert an object to an unstructured struct

func PassLabel 

func PassLabel(parentObj oam.Object, childObj labelAnnotationObject)

PassLabel passes through labels from the parent to the child object

func PassLabelAndAnnotation 

func PassLabelAndAnnotation(parentObj oam.Object, childObj labelAnnotationObject)

PassLabelAndAnnotation passes through labels and annotation objectMeta from the parent to the child object, when annotation or labels has conflicts, the parentObj will override the childObj.

func PatchCondition 

func PatchCondition(ctx context.Context, r client.StatusClient, workload ConditionedObject,
	condition ...cpv1alpha1.Condition) error

PatchCondition condition for a conditioned object

func RawExtension2Map added in v0.3.0 

func RawExtension2Map(raw *runtime.RawExtension) (map[string]interface{}, error)

RawExtension2Map will convert rawExtension to map

func SetNnamespaceInCtx added in v0.3.5 

func SetNnamespaceInCtx(ctx context.Context, appNs string) context.Context

SetNnamespaceInCtx set app namespace in context, Sometimes webhook handler may receive request that appNs is empty string, and will cause error when search definition So if namespace is empty, it will use `default` namespace by default.

func UnMarshalStringToTraitDefinition added in v0.3.1 

func UnMarshalStringToTraitDefinition(s string) (*v1alpha2.TraitDefinition, error)

UnMarshalStringToTraitDefinition parse a string to a traitDefinition object

func UnMarshalStringToWorkloadDefinition added in v0.3.1 

func UnMarshalStringToWorkloadDefinition(s string) (*v1alpha2.WorkloadDefinition, error)

UnMarshalStringToWorkloadDefinition parse a string to a workloadDefinition object

func UnpackRevisionData 

func UnpackRevisionData(rev *appsv1.ControllerRevision) (*v1alpha2.Component, error)

UnpackRevisionData will unpack revision.Data to Component

Types

type AlreadyExistMatcher 

type AlreadyExistMatcher struct {
}

AlreadyExistMatcher matches the error to be already exist

func (AlreadyExistMatcher) FailureMessage 

func (matcher AlreadyExistMatcher) FailureMessage(actual interface{}) (message string)

FailureMessage builds an error message.

func (AlreadyExistMatcher) Match 

func (matcher AlreadyExistMatcher) Match(actual interface{}) (success bool, err error)

Match matches error.

func (AlreadyExistMatcher) NegatedFailureMessage 

func (matcher AlreadyExistMatcher) NegatedFailureMessage(actual interface{}) (message string)

NegatedFailureMessage builds an error message.

type ConditionedObject 

type ConditionedObject interface {
	oam.Object

	oam.Conditioned
}

A ConditionedObject is an Object type with condition field

type ErrorMatcher 

type ErrorMatcher struct {
	ExpectedError error
}

ErrorMatcher matches errors.

func (ErrorMatcher) FailureMessage 

func (matcher ErrorMatcher) FailureMessage(actual interface{}) (message string)

FailureMessage builds an error message.

func (ErrorMatcher) Match 

func (matcher ErrorMatcher) Match(actual interface{}) (success bool, err error)

Match matches an error.

func (ErrorMatcher) NegatedFailureMessage 

func (matcher ErrorMatcher) NegatedFailureMessage(actual interface{}) (message string)

NegatedFailureMessage builds an error message.

type NotFoundMatcher 

type NotFoundMatcher struct {
}

NotFoundMatcher matches the error to be not found.

func (NotFoundMatcher) FailureMessage 

func (matcher NotFoundMatcher) FailureMessage(actual interface{}) (message string)

FailureMessage builds an error message.

func (NotFoundMatcher) Match 

func (matcher NotFoundMatcher) Match(actual interface{}) (success bool, err error)

Match matches the api error.

func (NotFoundMatcher) NegatedFailureMessage 

func (matcher NotFoundMatcher) NegatedFailureMessage(actual interface{}) (message string)

NegatedFailureMessage builds an error message.

type Template added in v0.3.1 

type Template struct {
	TemplateStr        string
	Health             string
	CustomStatus       string
	CapabilityCategory types.CapabilityCategory
}

Template includes its string, health and its category

func LoadTemplate added in v0.3.1 

func LoadTemplate(ctx context.Context, cli client.Reader, key string, kd types.CapType) (*Template, error)

LoadTemplate Get template according to key

func NewTemplate added in v0.3.3 

func NewTemplate(template string, status *v1alpha2.Status, raw *runtime.RawExtension) (*Template, error)

NewTemplate will create CUE template for inner AbstractEngine using.

Source Files

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