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gateway.networking.k8s.io_udproutes.yaml
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apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
api-approved.kubernetes.io: https://github.com/kubernetes-sigs/gateway-api/pull/3328
gateway.networking.k8s.io/bundle-version: v1.3.0-rc.1
gateway.networking.k8s.io/channel: experimental
creationTimestamp: null
name: udproutes.gateway.networking.k8s.io
spec:
group: gateway.networking.k8s.io
names:
categories:
- gateway-api
kind: UDPRoute
listKind: UDPRouteList
plural: udproutes
singular: udproute
scope: Namespaced
versions:
- additionalPrinterColumns:
- jsonPath: .metadata.creationTimestamp
name: Age
type: date
name: v1alpha2
schema:
openAPIV3Schema:
description: |-
UDPRoute provides a way to route UDP traffic. When combined with a Gateway
listener, it can be used to forward traffic on the port specified by the
listener to a set of backends specified by the UDPRoute.
properties:
apiVersion:
description: |-
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
type: string
kind:
description: |-
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
type: string
metadata:
type: object
spec:
description: Spec defines the desired state of UDPRoute.
properties:
parentRefs:
description: |-
ParentRefs references the resources (usually Gateways) that a Route wants
to be attached to. Note that the referenced parent resource needs to
allow this for the attachment to be complete. For Gateways, that means
the Gateway needs to allow attachment from Routes of this kind and
namespace. For Services, that means the Service must either be in the same
namespace for a "producer" route, or the mesh implementation must support
and allow "consumer" routes for the referenced Service. ReferenceGrant is
not applicable for governing ParentRefs to Services - it is not possible to
create a "producer" route for a Service in a different namespace from the
Route.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
This API may be extended in the future to support additional kinds of parent
resources.
ParentRefs must be _distinct_. This means either that:
* They select different objects. If this is the case, then parentRef
entries are distinct. In terms of fields, this means that the
multi-part key defined by `group`, `kind`, `namespace`, and `name` must
be unique across all parentRef entries in the Route.
* They do not select different objects, but for each optional field used,
each ParentRef that selects the same object must set the same set of
optional fields to different values. If one ParentRef sets a
combination of optional fields, all must set the same combination.
Some examples:
* If one ParentRef sets `sectionName`, all ParentRefs referencing the
same object must also set `sectionName`.
* If one ParentRef sets `port`, all ParentRefs referencing the same
object must also set `port`.
* If one ParentRef sets `sectionName` and `port`, all ParentRefs
referencing the same object must also set `sectionName` and `port`.
It is possible to separately reference multiple distinct objects that may
be collapsed by an implementation. For example, some implementations may
choose to merge compatible Gateway Listeners together. If that is the
case, the list of routes attached to those resources should also be
merged.
Note that for ParentRefs that cross namespace boundaries, there are specific
rules. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example,
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable other kinds of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
items:
description: |-
ParentReference identifies an API object (usually a Gateway) that can be considered
a parent of this resource (usually a route). There are two kinds of parent resources
with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
This API may be extended in the future to support additional kinds of parent
resources.
The API object must be valid in the cluster; the Group and Kind must
be registered in the cluster for this reference to be valid.
properties:
group:
default: gateway.networking.k8s.io
description: |-
Group is the group of the referent.
When unspecified, "gateway.networking.k8s.io" is inferred.
To set the core API group (such as for a "Service" kind referent),
Group must be explicitly set to "" (empty string).
Support: Core
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Gateway
description: |-
Kind is kind of the referent.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
Support for other resources is Implementation-Specific.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: |-
Name is the name of the referent.
Support: Core
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the referent. When unspecified, this refers
to the local namespace of the Route.
Note that there are specific rules for ParentRefs which cross namespace
boundaries. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example:
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable any other kind of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port is the network port this Route targets. It can be interpreted
differently based on the type of parent resource.
When the parent resource is a Gateway, this targets all listeners
listening on the specified port that also support this kind of Route(and
select this Route). It's not recommended to set `Port` unless the
networking behaviors specified in a Route must apply to a specific port
as opposed to a listener(s) whose port(s) may be changed. When both Port
and SectionName are specified, the name and port of the selected listener
must match both specified values.
When the parent resource is a Service, this targets a specific port in the
Service spec. When both Port (experimental) and SectionName are specified,
the name and port of the selected port must match both specified values.
Implementations MAY choose to support other parent resources.
Implementations supporting other types of parent resources MUST clearly
document how/if Port is interpreted.
For the purpose of status, an attachment is considered successful as
long as the parent resource accepts it partially. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment
from the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route,
the Route MUST be considered detached from the Gateway.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
sectionName:
description: |-
SectionName is the name of a section within the target resource. In the
following resources, SectionName is interpreted as the following:
* Gateway: Listener name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
* Service: Port name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
Implementations MAY choose to support attaching Routes to other resources.
If that is the case, they MUST clearly document how SectionName is
interpreted.
When unspecified (empty string), this will reference the entire resource.
For the purpose of status, an attachment is considered successful if at
least one section in the parent resource accepts it. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from
the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route, the
Route MUST be considered detached from the Gateway.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
maxItems: 32
type: array
x-kubernetes-validations:
- message: sectionName or port must be specified when parentRefs includes
2 or more references to the same parent
rule: 'self.all(p1, self.all(p2, p1.group == p2.group && p1.kind
== p2.kind && p1.name == p2.name && (((!has(p1.__namespace__)
|| p1.__namespace__ == '''') && (!has(p2.__namespace__) || p2.__namespace__
== '''')) || (has(p1.__namespace__) && has(p2.__namespace__) &&
p1.__namespace__ == p2.__namespace__)) ? ((!has(p1.sectionName)
|| p1.sectionName == '''') == (!has(p2.sectionName) || p2.sectionName
== '''') && (!has(p1.port) || p1.port == 0) == (!has(p2.port)
|| p2.port == 0)): true))'
- message: sectionName or port must be unique when parentRefs includes
2 or more references to the same parent
rule: self.all(p1, self.exists_one(p2, p1.group == p2.group && p1.kind
== p2.kind && p1.name == p2.name && (((!has(p1.__namespace__)
|| p1.__namespace__ == '') && (!has(p2.__namespace__) || p2.__namespace__
== '')) || (has(p1.__namespace__) && has(p2.__namespace__) &&
p1.__namespace__ == p2.__namespace__ )) && (((!has(p1.sectionName)
|| p1.sectionName == '') && (!has(p2.sectionName) || p2.sectionName
== '')) || ( has(p1.sectionName) && has(p2.sectionName) && p1.sectionName
== p2.sectionName)) && (((!has(p1.port) || p1.port == 0) && (!has(p2.port)
|| p2.port == 0)) || (has(p1.port) && has(p2.port) && p1.port
== p2.port))))
rules:
description: Rules are a list of UDP matchers and actions.
items:
description: UDPRouteRule is the configuration for a given rule.
properties:
backendRefs:
description: |-
BackendRefs defines the backend(s) where matching requests should be
sent. If unspecified or invalid (refers to a nonexistent resource or a
Service with no endpoints), the underlying implementation MUST actively
reject connection attempts to this backend. Packet drops must
respect weight; if an invalid backend is requested to have 80% of
the packets, then 80% of packets must be dropped instead.
Support: Core for Kubernetes Service
Support: Extended for Kubernetes ServiceImport
Support: Implementation-specific for any other resource
Support for weight: Extended
items:
description: |-
BackendRef defines how a Route should forward a request to a Kubernetes
resource.
Note that when a namespace different than the local namespace is specified, a
ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
When the BackendRef points to a Kubernetes Service, implementations SHOULD
honor the appProtocol field if it is set for the target Service Port.
Implementations supporting appProtocol SHOULD recognize the Kubernetes
Standard Application Protocols defined in KEP-3726.
If a Service appProtocol isn't specified, an implementation MAY infer the
backend protocol through its own means. Implementations MAY infer the
protocol from the Route type referring to the backend Service.
If a Route is not able to send traffic to the backend using the specified
protocol then the backend is considered invalid. Implementations MUST set the
"ResolvedRefs" condition to "False" with the "UnsupportedProtocol" reason.
Note that when the BackendTLSPolicy object is enabled by the implementation,
there are some extra rules about validity to consider here. See the fields
where this struct is used for more information about the exact behavior.
properties:
group:
default: ""
description: |-
Group is the group of the referent. For example, "gateway.networking.k8s.io".
When unspecified or empty string, core API group is inferred.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Service
description: |-
Kind is the Kubernetes resource kind of the referent. For example
"Service".
Defaults to "Service" when not specified.
ExternalName services can refer to CNAME DNS records that may live
outside of the cluster and as such are difficult to reason about in
terms of conformance. They also may not be safe to forward to (see
CVE-2021-25740 for more information). Implementations SHOULD NOT
support ExternalName Services.
Support: Core (Services with a type other than ExternalName)
Support: Implementation-specific (Services with type ExternalName)
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: Name is the name of the referent.
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the backend. When unspecified, the local
namespace is inferred.
Note that when a namespace different than the local namespace is specified,
a ReferenceGrant object is required in the referent namespace to allow that
namespace's owner to accept the reference. See the ReferenceGrant
documentation for details.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port specifies the destination port number to use for this resource.
Port is required when the referent is a Kubernetes Service. In this
case, the port number is the service port number, not the target port.
For other resources, destination port might be derived from the referent
resource or this field.
format: int32
maximum: 65535
minimum: 1
type: integer
weight:
default: 1
description: |-
Weight specifies the proportion of requests forwarded to the referenced
backend. This is computed as weight/(sum of all weights in this
BackendRefs list). For non-zero values, there may be some epsilon from
the exact proportion defined here depending on the precision an
implementation supports. Weight is not a percentage and the sum of
weights does not need to equal 100.
If only one backend is specified and it has a weight greater than 0, 100%
of the traffic is forwarded to that backend. If weight is set to 0, no
traffic should be forwarded for this entry. If unspecified, weight
defaults to 1.
Support for this field varies based on the context where used.
format: int32
maximum: 1000000
minimum: 0
type: integer
required:
- name
type: object
x-kubernetes-validations:
- message: Must have port for Service reference
rule: '(size(self.group) == 0 && self.kind == ''Service'')
? has(self.port) : true'
maxItems: 16
minItems: 1
type: array
name:
description: |-
Name is the name of the route rule. This name MUST be unique within a Route if it is set.
Support: Extended
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
type: object
maxItems: 16
minItems: 1
type: array
x-kubernetes-validations:
- message: Rule name must be unique within the route
rule: self.all(l1, !has(l1.name) || self.exists_one(l2, has(l2.name)
&& l1.name == l2.name))
required:
- rules
type: object
status:
description: Status defines the current state of UDPRoute.
properties:
parents:
description: |-
Parents is a list of parent resources (usually Gateways) that are
associated with the route, and the status of the route with respect to
each parent. When this route attaches to a parent, the controller that
manages the parent must add an entry to this list when the controller
first sees the route and should update the entry as appropriate when the
route or gateway is modified.
Note that parent references that cannot be resolved by an implementation
of this API will not be added to this list. Implementations of this API
can only populate Route status for the Gateways/parent resources they are
responsible for.
A maximum of 32 Gateways will be represented in this list. An empty list
means the route has not been attached to any Gateway.
items:
description: |-
RouteParentStatus describes the status of a route with respect to an
associated Parent.
properties:
conditions:
description: |-
Conditions describes the status of the route with respect to the Gateway.
Note that the route's availability is also subject to the Gateway's own
status conditions and listener status.
If the Route's ParentRef specifies an existing Gateway that supports
Routes of this kind AND that Gateway's controller has sufficient access,
then that Gateway's controller MUST set the "Accepted" condition on the
Route, to indicate whether the route has been accepted or rejected by the
Gateway, and why.
A Route MUST be considered "Accepted" if at least one of the Route's
rules is implemented by the Gateway.
There are a number of cases where the "Accepted" condition may not be set
due to lack of controller visibility, that includes when:
* The Route refers to a nonexistent parent.
* The Route is of a type that the controller does not support.
* The Route is in a namespace the controller does not have access to.
items:
description: Condition contains details for one aspect of
the current state of this API Resource.
properties:
lastTransitionTime:
description: |-
lastTransitionTime is the last time the condition transitioned from one status to another.
This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.
format: date-time
type: string
message:
description: |-
message is a human readable message indicating details about the transition.
This may be an empty string.
maxLength: 32768
type: string
observedGeneration:
description: |-
observedGeneration represents the .metadata.generation that the condition was set based upon.
For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date
with respect to the current state of the instance.
format: int64
minimum: 0
type: integer
reason:
description: |-
reason contains a programmatic identifier indicating the reason for the condition's last transition.
Producers of specific condition types may define expected values and meanings for this field,
and whether the values are considered a guaranteed API.
The value should be a CamelCase string.
This field may not be empty.
maxLength: 1024
minLength: 1
pattern: ^[A-Za-z]([A-Za-z0-9_,:]*[A-Za-z0-9_])?$
type: string
status:
description: status of the condition, one of True, False,
Unknown.
enum:
- "True"
- "False"
- Unknown
type: string
type:
description: type of condition in CamelCase or in foo.example.com/CamelCase.
maxLength: 316
pattern: ^([a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*/)?(([A-Za-z0-9][-A-Za-z0-9_.]*)?[A-Za-z0-9])$
type: string
required:
- lastTransitionTime
- message
- reason
- status
- type
type: object
maxItems: 8
minItems: 1
type: array
x-kubernetes-list-map-keys:
- type
x-kubernetes-list-type: map
controllerName:
description: |-
ControllerName is a domain/path string that indicates the name of the
controller that wrote this status. This corresponds with the
controllerName field on GatewayClass.
Example: "example.net/gateway-controller".
The format of this field is DOMAIN "/" PATH, where DOMAIN and PATH are
valid Kubernetes names
(https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names).
Controllers MUST populate this field when writing status. Controllers should ensure that
entries to status populated with their ControllerName are cleaned up when they are no
longer necessary.
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
type: string
parentRef:
description: |-
ParentRef corresponds with a ParentRef in the spec that this
RouteParentStatus struct describes the status of.
properties:
group:
default: gateway.networking.k8s.io
description: |-
Group is the group of the referent.
When unspecified, "gateway.networking.k8s.io" is inferred.
To set the core API group (such as for a "Service" kind referent),
Group must be explicitly set to "" (empty string).
Support: Core
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
default: Gateway
description: |-
Kind is kind of the referent.
There are two kinds of parent resources with "Core" support:
* Gateway (Gateway conformance profile)
* Service (Mesh conformance profile, ClusterIP Services only)
Support for other resources is Implementation-Specific.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
name:
description: |-
Name is the name of the referent.
Support: Core
maxLength: 253
minLength: 1
type: string
namespace:
description: |-
Namespace is the namespace of the referent. When unspecified, this refers
to the local namespace of the Route.
Note that there are specific rules for ParentRefs which cross namespace
boundaries. Cross-namespace references are only valid if they are explicitly
allowed by something in the namespace they are referring to. For example:
Gateway has the AllowedRoutes field, and ReferenceGrant provides a
generic way to enable any other kind of cross-namespace reference.
ParentRefs from a Route to a Service in the same namespace are "producer"
routes, which apply default routing rules to inbound connections from
any namespace to the Service.
ParentRefs from a Route to a Service in a different namespace are
"consumer" routes, and these routing rules are only applied to outbound
connections originating from the same namespace as the Route, for which
the intended destination of the connections are a Service targeted as a
ParentRef of the Route.
Support: Core
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
port:
description: |-
Port is the network port this Route targets. It can be interpreted
differently based on the type of parent resource.
When the parent resource is a Gateway, this targets all listeners
listening on the specified port that also support this kind of Route(and
select this Route). It's not recommended to set `Port` unless the
networking behaviors specified in a Route must apply to a specific port
as opposed to a listener(s) whose port(s) may be changed. When both Port
and SectionName are specified, the name and port of the selected listener
must match both specified values.
When the parent resource is a Service, this targets a specific port in the
Service spec. When both Port (experimental) and SectionName are specified,
the name and port of the selected port must match both specified values.
Implementations MAY choose to support other parent resources.
Implementations supporting other types of parent resources MUST clearly
document how/if Port is interpreted.
For the purpose of status, an attachment is considered successful as
long as the parent resource accepts it partially. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment
from the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route,
the Route MUST be considered detached from the Gateway.
Support: Extended
format: int32
maximum: 65535
minimum: 1
type: integer
sectionName:
description: |-
SectionName is the name of a section within the target resource. In the
following resources, SectionName is interpreted as the following:
* Gateway: Listener name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
* Service: Port name. When both Port (experimental) and SectionName
are specified, the name and port of the selected listener must match
both specified values.
Implementations MAY choose to support attaching Routes to other resources.
If that is the case, they MUST clearly document how SectionName is
interpreted.
When unspecified (empty string), this will reference the entire resource.
For the purpose of status, an attachment is considered successful if at
least one section in the parent resource accepts it. For example, Gateway
listeners can restrict which Routes can attach to them by Route kind,
namespace, or hostname. If 1 of 2 Gateway listeners accept attachment from
the referencing Route, the Route MUST be considered successfully
attached. If no Gateway listeners accept attachment from this Route, the
Route MUST be considered detached from the Gateway.
Support: Core
maxLength: 253
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
required:
- name
type: object
required:
- controllerName
- parentRef
type: object
maxItems: 32
type: array
required:
- parents
type: object
required:
- spec
type: object
served: true
storage: true
subresources:
status: {}
status:
acceptedNames:
kind: ""
plural: ""
conditions: null
storedVersions: null