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Specification

Property Type Description

addressType

string

addressType specifies the type of address carried by this EndpointSlice. All addresses in this slice must be the same type. This field is immutable after creation. The following address types are currently supported: * IPv4: Represents an IPv4 Address. * IPv6: Represents an IPv6 Address. * FQDN: Represents a Fully Qualified Domain Name.

Possible enum values: - "FQDN" represents a FQDN. - "IPv4" represents an IPv4 Address. - "IPv6" represents an IPv6 Address.

apiVersion

string

APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

endpoints

array

endpoints is a list of unique endpoints in this slice. Each slice may include a maximum of 1000 endpoints.

endpoints[]

object

Endpoint represents a single logical "backend" implementing a service.

kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

metadata

ObjectMeta

Standard object’s metadata.

ports

array

ports specifies the list of network ports exposed by each endpoint in this slice. Each port must have a unique name. When ports is empty, it indicates that there are no defined ports. When a port is defined with a nil port value, it indicates "all ports". Each slice may include a maximum of 100 ports.

ports[]

object

EndpointPort represents a Port used by an EndpointSlice

.endpoints

Description

endpoints is a list of unique endpoints in this slice. Each slice may include a maximum of 1000 endpoints.

Type

array

.endpoints[]

Description

Endpoint represents a single logical "backend" implementing a service.

Type

object

Required
  • addresses

Property Type Description

addresses

array (string)

addresses of this endpoint. The contents of this field are interpreted according to the corresponding EndpointSlice addressType field. Consumers must handle different types of addresses in the context of their own capabilities. This must contain at least one address but no more than 100. These are all assumed to be fungible and clients may choose to only use the first element. Refer to: https://issue.k8s.io/106267

conditions

object

EndpointConditions represents the current condition of an endpoint.

deprecatedTopology

object (string)

deprecatedTopology contains topology information part of the v1beta1 API. This field is deprecated, and will be removed when the v1beta1 API is removed (no sooner than kubernetes v1.24). While this field can hold values, it is not writable through the v1 API, and any attempts to write to it will be silently ignored. Topology information can be found in the zone and nodeName fields instead.

hints

object

EndpointHints provides hints describing how an endpoint should be consumed.

hostname

string

hostname of this endpoint. This field may be used by consumers of endpoints to distinguish endpoints from each other (e.g. in DNS names). Multiple endpoints which use the same hostname should be considered fungible (e.g. multiple A values in DNS). Must be lowercase and pass DNS Label (RFC 1123) validation.

nodeName

string

nodeName represents the name of the Node hosting this endpoint. This can be used to determine endpoints local to a Node. This field can be enabled with the EndpointSliceNodeName feature gate.

targetRef

ObjectReference

targetRef is a reference to a Kubernetes object that represents this endpoint.

zone

string

zone is the name of the Zone this endpoint exists in.

.endpoints[].conditions

Description

EndpointConditions represents the current condition of an endpoint.

Type

object

Property Type Description

ready

boolean

ready indicates that this endpoint is prepared to receive traffic, according to whatever system is managing the endpoint. A nil value indicates an unknown state. In most cases consumers should interpret this unknown state as ready. For compatibility reasons, ready should never be "true" for terminating endpoints.

serving

boolean

serving is identical to ready except that it is set regardless of the terminating state of endpoints. This condition should be set to true for a ready endpoint that is terminating. If nil, consumers should defer to the ready condition. This field can be enabled with the EndpointSliceTerminatingCondition feature gate.

terminating

boolean

terminating indicates that this endpoint is terminating. A nil value indicates an unknown state. Consumers should interpret this unknown state to mean that the endpoint is not terminating. This field can be enabled with the EndpointSliceTerminatingCondition feature gate.

.endpoints[].hints

Description

EndpointHints provides hints describing how an endpoint should be consumed.

Type

object

Property Type Description

forZones

array

forZones indicates the zone(s) this endpoint should be consumed by to enable topology aware routing.

forZones[]

object

ForZone provides information about which zones should consume this endpoint.

.endpoints[].hints.forZones

Description

forZones indicates the zone(s) this endpoint should be consumed by to enable topology aware routing.

Type

array

.endpoints[].hints.forZones[]

Description

ForZone provides information about which zones should consume this endpoint.

Type

object

Required
  • name

Property Type Description

name

string

name represents the name of the zone.

.ports

Description

ports specifies the list of network ports exposed by each endpoint in this slice. Each port must have a unique name. When ports is empty, it indicates that there are no defined ports. When a port is defined with a nil port value, it indicates "all ports". Each slice may include a maximum of 100 ports.

Type

array

.ports[]

Description

EndpointPort represents a Port used by an EndpointSlice

Type

object

Property Type Description

appProtocol

string

The application protocol for this port. This field follows standard Kubernetes label syntax. Un-prefixed names are reserved for IANA standard service names (as per RFC-6335 and https://www.iana.org/assignments/service-names). Non-standard protocols should use prefixed names such as mycompany.com/my-custom-protocol.

name

string

The name of this port. All ports in an EndpointSlice must have a unique name. If the EndpointSlice is dervied from a Kubernetes service, this corresponds to the Service.ports[].name. Name must either be an empty string or pass DNS_LABEL validation: * must be no more than 63 characters long. * must consist of lower case alphanumeric characters or '-'. * must start and end with an alphanumeric character. Default is empty string.

port

integer

The port number of the endpoint. If this is not specified, ports are not restricted and must be interpreted in the context of the specific consumer.

protocol

string

The IP protocol for this port. Must be UDP, TCP, or SCTP. Default is TCP.

API endpoints

The following API endpoints are available:

  • /apis/discovery.k8s.io/v1/endpointslices

    • GET: list or watch objects of kind EndpointSlice

  • /apis/discovery.k8s.io/v1/watch/endpointslices

    • GET: watch individual changes to a list of EndpointSlice. deprecated: use the 'watch' parameter with a list operation instead.

  • /apis/discovery.k8s.io/v1/namespaces/{namespace}/endpointslices

    • DELETE: delete collection of EndpointSlice

    • GET: list or watch objects of kind EndpointSlice

    • POST: create an EndpointSlice

  • /apis/discovery.k8s.io/v1/watch/namespaces/{namespace}/endpointslices

    • GET: watch individual changes to a list of EndpointSlice. deprecated: use the 'watch' parameter with a list operation instead.

  • /apis/discovery.k8s.io/v1/namespaces/{namespace}/endpointslices/{name}

    • DELETE: delete an EndpointSlice

    • GET: read the specified EndpointSlice

    • PATCH: partially update the specified EndpointSlice

    • PUT: replace the specified EndpointSlice

  • /apis/discovery.k8s.io/v1/watch/namespaces/{namespace}/endpointslices/{name}

    • GET: watch changes to an object of kind EndpointSlice. deprecated: use the 'watch' parameter with a list operation instead, filtered to a single item with the 'fieldSelector' parameter.

/apis/discovery.k8s.io/v1/endpointslices

Table 1. Global query parameters
Parameter Type Description

allowWatchBookmarks

boolean

allowWatchBookmarks requests watch events with type "BOOKMARK". Servers that do not implement bookmarks may ignore this flag and bookmarks are sent at the server's discretion. Clients should not assume bookmarks are returned at any specific interval, nor may they assume the server will send any BOOKMARK event during a session. If this is not a watch, this field is ignored.

continue