common

package
v0.0.0-...-7754ea6 Latest Latest
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 Go to latest Published: Apr 25, 2024 License: MPL-2.0 Imports: 26 Imported by: 0

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Index

Constants

View Source 
const (
	GatewayClassControllerName = "consul.hashicorp.com/gateway-controller"

	AnnotationGatewayClassConfig = "consul.hashicorp.com/gateway-class-config"

	// The following annotation keys are used in the v1beta1.GatewayTLSConfig's Options on a v1beta1.Listener.
	TLSCipherSuitesAnnotationKey = "api-gateway.consul.hashicorp.com/tls_cipher_suites"
	TLSMaxVersionAnnotationKey   = "api-gateway.consul.hashicorp.com/tls_max_version"
	TLSMinVersionAnnotationKey   = "api-gateway.consul.hashicorp.com/tls_min_version"
)
View Source 
const (
	// GatewayFinalizer is the finalizer we add to any gateway object.
	GatewayFinalizer = "gateway-finalizer.consul.hashicorp.com"

	// NamespaceNameLabel represents that label added automatically to namespaces in newer Kubernetes clusters.
	NamespaceNameLabel = "kubernetes.io/metadata.name"
)
View Source 
const (
	ManagedLabel = "gateway.consul.hashicorp.com/managed"
)
View Source 
const MinKeyLength = 2048

Envoy will silently reject any keys that are less than 2048 bytes long https://github.com/envoyproxy/envoy/blob/main/source/extensions/transport_sockets/tls/context_impl.cc#L238

Variables

View Source 
var (
	// constants extracted for ease of use.
	KindGateway = "Gateway"
	KindSecret  = "Secret"
	KindService = "Service"
	BetaGroup   = gwv1beta1.GroupVersion.Group
)

Functions

func BothNilOrEqual 

func BothNilOrEqual[T comparable](one, two *T) bool

BothNilOrEqual is used to determine if two pointers to comparable object are either nil or both point to the same value.

func ConvertMapValuesToSlice 

func ConvertMapValuesToSlice[T comparable, U any](vs map[T]U) []U

func ConvertSliceFunc 

func ConvertSliceFunc[T any, U any](vs []T, fn func(T) U) []U

func ConvertSliceFuncIf 

func ConvertSliceFuncIf[T any, U any](vs []T, fn func(T) (U, bool)) []U

func DefaultOrEqual 

func DefaultOrEqual(v, fallback, check string) bool

func DerefAll 

func DerefAll[T any](vs []*T) []T

func DerefConvertFunc 

func DerefConvertFunc[T any, U any](v *T, fn func(T) U) U

func DerefEqual 

func DerefEqual[T ~string](v *T, check string) bool

func DerefIntOr 

func DerefIntOr[T ~int | ~int32, U ~int](v *T, val U) int

func DerefLookup 

func DerefLookup[T comparable, U any](v *T, lookup map[T]U) U

func DerefStringOr 

func DerefStringOr[T ~string, U ~string](v *T, val U) string

func EmptyOrEqual 

func EmptyOrEqual(v, check string) bool

func EnsureFinalizer 

func EnsureFinalizer(object client.Object) bool

EnsureFinalizer ensures that our finalizer is set on an object returning whether or not it modified the object.

func EntriesEqual 

func EntriesEqual(a, b api.ConfigEntry) bool

func EntryToNamespacedName 

func EntryToNamespacedName(entry api.ConfigEntry) types.NamespacedName

func EntryToReference 

func EntryToReference(entry api.ConfigEntry) api.ResourceReference

func Filter 

func Filter[T any](vs []T, filterFn func(T) bool) []T

func FilterIsExternalFilter 

func FilterIsExternalFilter(filter gwv1beta1.HTTPRouteFilter) bool

func Flatten 

func Flatten[T any](vs [][]T) []T

func GatewayFromPod 

func GatewayFromPod(pod *corev1.Pod) (types.NamespacedName, bool)

func GatewayPolicyStatusesEqual 

func GatewayPolicyStatusesEqual(a, b v1alpha1.GatewayPolicyStatus) bool

func GatewayStatusesEqual 

func GatewayStatusesEqual(a, b gwv1beta1.GatewayStatus) bool

func IndexedNamespacedNameWithDefault 

func IndexedNamespacedNameWithDefault[T ~string, U ~string, V ~string](t T, u *U, v V) types.NamespacedName

func LabelsForGateway 

func LabelsForGateway(gateway *gwv1beta1.Gateway) map[string]string

LabelsForGateway formats the default labels that appear on objects managed by the controllers.

func NilOrEqual 

func NilOrEqual[T ~string](v *T, check string) bool

func NormalizeEmptyMetadataString 

func NormalizeEmptyMetadataString(metaString string) string

func NormalizeMeta 

func NormalizeMeta(ref api.ResourceReference) api.ResourceReference

func ObjectsToReconcileRequests 

func ObjectsToReconcileRequests[T metav1.Object](objects []T) []reconcile.Request

ObjectsToReconcileRequests takes a list of objects and returns a list of reconcile Requests.

func ParentRefs 

func ParentRefs(group, kind, namespace string, refs []gwv1beta1.ParentReference) []types.NamespacedName

ParentRefs takes a list of ParentReference objects and returns a list of NamespacedName objects.

func ParentsEqual 

func ParentsEqual(one, two gwv1beta1.ParentReference) bool

ParentsEqual checks for equality between two parent references.

func ParseCertificateData 

func ParseCertificateData(secret corev1.Secret) (cert string, privateKey string, err error)

func PointerTo 

func PointerTo[T any](v T) *T

PointerTo is a convenience method for taking a pointer of an object without having to declare an intermediate variable. It's also useful for making sure we don't accidentally take the pointer of a range variable directly.

func RemoveFinalizer 

func RemoveFinalizer(object client.Object) bool

RemoveFinalizer ensures that our finalizer is absent from an object returning whether or not it modified the object.

func ResourceReferenceWithDefault 

func ResourceReferenceWithDefault[T ~string, U ~string, V ~string](kind string, name T, section string, u *U, v V, partition string) api.ResourceReference

func RouteAuthFilterStatusesEqual 

func RouteAuthFilterStatusesEqual(a, b v1alpha1.RouteAuthFilterStatus) bool

func StringLikeSlice 

func StringLikeSlice[T ~string](vs []T) []string

func ToContainerPort 

func ToContainerPort(portNumber gwv1beta1.PortNumber, mapPrivilegedContainerPorts int32) int

func ValidateKeyLength 

func ValidateKeyLength(privateKey string) error

ValidateKeyLength ensures that the key length for a certificate is of a valid length for envoy dependent on if consul is running in FIPS mode or not.

func ValueOr 

func ValueOr[T ~string](v *T, fallback string) string

ValueOr checks if a string-like pointer is nil, and if it is, returns the given value instead.

Types

type ConsulConfig 

type ConsulConfig struct {
	Address    string
	GRPCPort   int
	HTTPPort   int
	APITimeout time.Duration
}

type ConsulUpdateOperation 

type ConsulUpdateOperation struct {
	// Entry is the ConfigEntry to write to Consul.
	Entry api.ConfigEntry
	// OnUpdate is an optional callback to fire after running
	// the Consul update operation. If specified, then no more
	// error handling occurs after the function is called, otherwise
	// normal error handling logic applies.
	OnUpdate func(err error)
}

ConsulUpdateOperation is an operation representing an update in Consul.

type HelmConfig 

type HelmConfig struct {
	// ImageDataplane is the Consul Dataplane image to use in gateway deployments.
	ImageDataplane string
	// ImageConsulK8S is the Consul Kubernetes Control Plane image to use in gateway deployments.
	ImageConsulK8S             string
	ConsulDestinationNamespace string
	NamespaceMirroringPrefix   string
	EnableNamespaces           bool
	EnableNamespaceMirroring   bool
	AuthMethod                 string

	// LogLevel is the logging level of the deployed Consul Dataplanes.
	LogLevel            string
	ConsulPartition     string
	LogJSON             bool
	TLSEnabled          bool
	PeeringEnabled      bool
	ConsulTLSServerName string
	ConsulCACert        string
	ConsulConfig        ConsulConfig

	// EnableOpenShift indicates whether we're deploying into an OpenShift environment
	// and should create SecurityContextConstraints.
	EnableOpenShift bool

	// MapPrivilegedServicePorts is the value which Consul will add to privileged container port values (ports < 1024)
	// defined on a Gateway.
	MapPrivilegedServicePorts int

	// EnableGatewayMetrics indicates whether or not gateway metrics should be enabled
	// by default on a deployed gateway, passed from the helm chart via command-line flags to our controller.
	EnableGatewayMetrics bool

	// The default path to use for scraping prometheus metrics, passed from the helm chart via command-line flags to our controller.
	DefaultPrometheusScrapePath string

	// The default port to use for scraping prometheus metrics, passed from the helm chart via command-line flags to our controller.
	DefaultPrometheusScrapePort string

	InitContainerResources *v1.ResourceRequirements
}

HelmConfig is the configuration of gateways that comes in from the user's Helm values. This is a combination of the apiGateway stanza and other settings that impact api-gateways.

func (HelmConfig) Normalize 

func (h HelmConfig) Normalize() HelmConfig

type KubernetesUpdates 

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

KubernetesUpdates holds all update operations (including status) that need to be synced to Kubernetes. So long as you're modifying the same pointer object passed in to its Add function, this de-duplicates any calls to Add, in order for us to Add any previously unseen entires, but ignore them if they've already been added.

func NewKubernetesUpdates 

func NewKubernetesUpdates() *KubernetesUpdates

func (*KubernetesUpdates) Add 

func (k *KubernetesUpdates) Add(object client.Object)

func (*KubernetesUpdates) Operations 

func (k *KubernetesUpdates) Operations() []client.Object

type MetricsConfig 

type MetricsConfig struct {
	Enabled bool
	Path    string
	Port    int
}

func GatewayMetricsConfig 

func GatewayMetricsConfig(gateway gwv1beta1.Gateway, gcc v1alpha1.GatewayClassConfig, config HelmConfig) MetricsConfig

type ReferenceMap 

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

ReferenceMap is contains a map of config entries stored by their normalized resource references (with empty string for namespaces and partitions stored as "default").

func NewReferenceMap 

func NewReferenceMap() *ReferenceMap

NewReferenceMap constructs a reference map.

func (*ReferenceMap) Delete 

func (r *ReferenceMap) Delete(ref api.ResourceReference)

Delete deletes an entry stored in the reference map.

func (*ReferenceMap) Diff 

func (r *ReferenceMap) Diff(other *ReferenceMap) []api.ConfigEntry

Diff calculates the difference between the stored entries in two reference maps.

func (*ReferenceMap) Entries 

func (r *ReferenceMap) Entries() []api.ConfigEntry

Entries returns a list of entries stored in the reference map.

func (*ReferenceMap) Get 

func (r *ReferenceMap) Get(ref api.ResourceReference) api.ConfigEntry

Get returns an entry from the reference map.

func (*ReferenceMap) IDs 

func (r *ReferenceMap) IDs() []api.ResourceReference

func (*ReferenceMap) Set 

func (r *ReferenceMap) Set(ref api.ResourceReference, v api.ConfigEntry)

Set adds an entry to the reference map.

type ReferenceSet 

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

ReferenceSet is a set of stored references.

func NewReferenceSet 

func NewReferenceSet() *ReferenceSet

NewReferenceSet constructs a new reference set.

func (*ReferenceSet) Contains 

func (r *ReferenceSet) Contains(ref api.ResourceReference) bool

Contains checks for the inclusion of a reference in the set.

func (*ReferenceSet) IDs 

func (r *ReferenceSet) IDs() []api.ResourceReference

func (*ReferenceSet) Mark 

func (r *ReferenceSet) Mark(ref api.ResourceReference)

Mark adds a reference to the reference set.

func (*ReferenceSet) Remove 

func (r *ReferenceSet) Remove(ref api.ResourceReference)

Remove drops a reference from the set.

type ReferenceValidator 

type ReferenceValidator interface {
	GatewayCanReferenceSecret(gateway gwv1beta1.Gateway, secretRef gwv1beta1.SecretObjectReference) bool
	HTTPRouteCanReferenceBackend(httproute gwv1beta1.HTTPRoute, backendRef gwv1beta1.BackendRef) bool
	TCPRouteCanReferenceBackend(tcpRoute gwv1alpha2.TCPRoute, backendRef gwv1beta1.BackendRef) bool
}

type ResourceMap 

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

func NewResourceMap 

func NewResourceMap(translator ResourceTranslator, validator ReferenceValidator, logger logr.Logger) *ResourceMap

func (*ResourceMap) AddExternalFilter 

func (s *ResourceMap) AddExternalFilter(filter client.Object)

func (*ResourceMap) AddGatewayPolicy 

func (s *ResourceMap) AddGatewayPolicy(gatewayPolicy *v1alpha1.GatewayPolicy) *v1alpha1.GatewayPolicy

func (*ResourceMap) AddJWTProvider 

func (s *ResourceMap) AddJWTProvider(provider *v1alpha1.JWTProvider)

func (*ResourceMap) AddMeshService 

func (s *ResourceMap) AddMeshService(service v1alpha1.MeshService)

func (*ResourceMap) AddService 

func (s *ResourceMap) AddService(id types.NamespacedName, name string)

func (*ResourceMap) CanGCHTTPRouteOnUnbind 

func (s *ResourceMap) CanGCHTTPRouteOnUnbind(id api.ResourceReference) bool

func (*ResourceMap) CanGCTCPRouteOnUnbind 

func (s *ResourceMap) CanGCTCPRouteOnUnbind(id api.ResourceReference) bool

func (*ResourceMap) Certificate 

func (s *ResourceMap) Certificate(key types.NamespacedName) *corev1.Secret

func (*ResourceMap) ExternalFilterExists 

func (s *ResourceMap) ExternalFilterExists(filterRef gwv1beta1.LocalObjectReference, namespace string) bool

func (*ResourceMap) GatewayCanReferenceSecret 

func (s *ResourceMap) GatewayCanReferenceSecret(gateway gwv1beta1.Gateway, ref gwv1beta1.SecretObjectReference) bool

func (*ResourceMap) GetExternalAuthFilters 

func (s *ResourceMap) GetExternalAuthFilters() []*v1alpha1.RouteAuthFilter

func (*ResourceMap) GetExternalFilter 

func (s *ResourceMap) GetExternalFilter(filterRef gwv1beta1.LocalObjectReference, namespace string) (client.Object, bool)

func (*ResourceMap) GetJWTProviderForGatewayJWTProvider 

func (s *ResourceMap) GetJWTProviderForGatewayJWTProvider(provider *v1alpha1.GatewayJWTProvider) (*v1alpha1.JWTProvider, bool)

func (*ResourceMap) GetPolicyForGatewayListener 

func (s *ResourceMap) GetPolicyForGatewayListener(gateway gwv1beta1.Gateway, gatewayListener gwv1beta1.Listener) (*v1alpha1.GatewayPolicy, bool)

func (*ResourceMap) HTTPRouteCanReferenceBackend 

func (s *ResourceMap) HTTPRouteCanReferenceBackend(route gwv1beta1.HTTPRoute, ref gwv1beta1.BackendRef) bool

func (*ResourceMap) HasMeshService 

func (s *ResourceMap) HasMeshService(id types.NamespacedName) bool

func (*ResourceMap) HasService 

func (s *ResourceMap) HasService(id types.NamespacedName) bool

func (*ResourceMap) MeshService 

func (s *ResourceMap) MeshService(id types.NamespacedName) api.ResourceReference

func (*ResourceMap) MutateHTTPRoute 

func (s *ResourceMap) MutateHTTPRoute(key types.NamespacedName, onUpdate func(error, api.ConfigEntryStatus), mutateFn func(api.HTTPRouteConfigEntry) api.HTTPRouteConfigEntry)

func (*ResourceMap) MutateTCPRoute 

func (s *ResourceMap) MutateTCPRoute(key types.NamespacedName, onUpdate func(error, api.ConfigEntryStatus), mutateFn func(api.TCPRouteConfigEntry) api.TCPRouteConfigEntry)

func (*ResourceMap) Mutations 

func (s *ResourceMap) Mutations() []*ConsulUpdateOperation

func (*ResourceMap) ReferenceCountCertificate 

func (s *ResourceMap) ReferenceCountCertificate(secret corev1.Secret)

func (*ResourceMap) ReferenceCountConsulCertificate 

func (s *ResourceMap) ReferenceCountConsulCertificate(cert api.InlineCertificateConfigEntry)

func (*ResourceMap) ReferenceCountConsulHTTPRoute 

func (s *ResourceMap) ReferenceCountConsulHTTPRoute(route api.HTTPRouteConfigEntry)

func (*ResourceMap) ReferenceCountConsulTCPRoute 

func (s *ResourceMap) ReferenceCountConsulTCPRoute(route api.TCPRouteConfigEntry)

func (*ResourceMap) ReferenceCountGateway 

func (s *ResourceMap) ReferenceCountGateway(gateway gwv1beta1.Gateway)

func (*ResourceMap) ReferenceCountHTTPRoute 

func (s *ResourceMap) ReferenceCountHTTPRoute(route gwv1beta1.HTTPRoute)

func (*ResourceMap) ReferenceCountTCPRoute 

func (s *ResourceMap) ReferenceCountTCPRoute(route gwv1alpha2.TCPRoute)

func (*ResourceMap) ResourcesToGC 

func (s *ResourceMap) ResourcesToGC(key types.NamespacedName) []api.ResourceReference

func (*ResourceMap) Service 

func (s *ResourceMap) Service(id types.NamespacedName) api.ResourceReference

func (*ResourceMap) TCPRouteCanReferenceBackend 

func (s *ResourceMap) TCPRouteCanReferenceBackend(route gwv1alpha2.TCPRoute, ref gwv1beta1.BackendRef) bool

func (*ResourceMap) TranslateAndMutateHTTPRoute 

func (s *ResourceMap) TranslateAndMutateHTTPRoute(key types.NamespacedName, onUpdate func(error, api.ConfigEntryStatus), mutateFn func(old *api.HTTPRouteConfigEntry, new api.HTTPRouteConfigEntry) api.HTTPRouteConfigEntry)

func (*ResourceMap) TranslateAndMutateTCPRoute 

func (s *ResourceMap) TranslateAndMutateTCPRoute(key types.NamespacedName, onUpdate func(error, api.ConfigEntryStatus), mutateFn func(*api.TCPRouteConfigEntry, api.TCPRouteConfigEntry) api.TCPRouteConfigEntry)

func (*ResourceMap) TranslateInlineCertificate 

func (s *ResourceMap) TranslateInlineCertificate(key types.NamespacedName) error

type ResourceTranslator 

type ResourceTranslator struct {
	EnableConsulNamespaces bool
	ConsulDestNamespace    string
	EnableK8sMirroring     bool
	MirroringPrefix        string
	ConsulPartition        string
	Datacenter             string
}

ResourceTranslator handles translating K8s resources into Consul config entries.

func (ResourceTranslator) ConfigEntryReference 

func (t ResourceTranslator) ConfigEntryReference(kind string, id types.NamespacedName) api.ResourceReference

func (ResourceTranslator) Namespace 

func (t ResourceTranslator) Namespace(namespace string) string

func (ResourceTranslator) NonNormalizedConfigEntryReference 

func (t ResourceTranslator) NonNormalizedConfigEntryReference(kind string, id types.NamespacedName) api.ResourceReference

func (ResourceTranslator) NormalizedResourceReference 

func (t ResourceTranslator) NormalizedResourceReference(kind, namespace string, ref api.ResourceReference) api.ResourceReference

func (ResourceTranslator) ToAPIGateway 

func (t ResourceTranslator) ToAPIGateway(gateway gwv1beta1.Gateway, resources *ResourceMap, gwcc *v1alpha1.GatewayClassConfig) *api.APIGatewayConfigEntry

ToAPIGateway translates a kuberenetes API gateway into a Consul APIGateway Config Entry.

func (ResourceTranslator) ToHTTPRoute 

func (t ResourceTranslator) ToHTTPRoute(route gwv1beta1.HTTPRoute, resources *ResourceMap) *api.HTTPRouteConfigEntry

func (ResourceTranslator) ToInlineCertificate 

func (t ResourceTranslator) ToInlineCertificate(secret corev1.Secret) (*api.InlineCertificateConfigEntry, error)

func (ResourceTranslator) ToTCPRoute 

func (t ResourceTranslator) ToTCPRoute(route gwv1alpha2.TCPRoute, resources *ResourceMap) *api.TCPRouteConfigEntry

Source Files

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