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gateway-api-crds.yaml
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gateway-api-crds.yaml
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# Copyright 2024 The Kubernetes Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Gateway API Standard channel install
#
---
#
# config/crd/standard/gateway.networking.k8s.io_gatewayclasses.yaml
#
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
api-approved.kubernetes.io: https://github.com/kubernetes-sigs/gateway-api/pull/2997
gateway.networking.k8s.io/bundle-version: v1.1.0
gateway.networking.k8s.io/channel: standard
creationTimestamp: null
name: gatewayclasses.gateway.networking.k8s.io
spec:
group: gateway.networking.k8s.io
names:
categories:
- gateway-api
kind: GatewayClass
listKind: GatewayClassList
plural: gatewayclasses
shortNames:
- gc
singular: gatewayclass
scope: Cluster
versions:
- additionalPrinterColumns:
- jsonPath: .spec.controllerName
name: Controller
type: string
- jsonPath: .status.conditions[?(@.type=="Accepted")].status
name: Accepted
type: string
- jsonPath: .metadata.creationTimestamp
name: Age
type: date
- jsonPath: .spec.description
name: Description
priority: 1
type: string
name: v1
schema:
openAPIV3Schema:
description: |-
GatewayClass describes a class of Gateways available to the user for creating
Gateway resources.
It is recommended that this resource be used as a template for Gateways. This
means that a Gateway is based on the state of the GatewayClass at the time it
was created and changes to the GatewayClass or associated parameters are not
propagated down to existing Gateways. This recommendation is intended to
limit the blast radius of changes to GatewayClass or associated parameters.
If implementations choose to propagate GatewayClass changes to existing
Gateways, that MUST be clearly documented by the implementation.
Whenever one or more Gateways are using a GatewayClass, implementations SHOULD
add the `gateway-exists-finalizer.gateway.networking.k8s.io` finalizer on the
associated GatewayClass. This ensures that a GatewayClass associated with a
Gateway is not deleted while in use.
GatewayClass is a Cluster level resource.
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 GatewayClass.
properties:
controllerName:
description: |-
ControllerName is the name of the controller that is managing Gateways of
this class. The value of this field MUST be a domain prefixed path.
Example: "example.net/gateway-controller".
This field is not mutable and cannot be empty.
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])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
type: string
x-kubernetes-validations:
- message: Value is immutable
rule: self == oldSelf
description:
description: Description helps describe a GatewayClass with more details.
maxLength: 64
type: string
parametersRef:
description: |-
ParametersRef is a reference to a resource that contains the configuration
parameters corresponding to the GatewayClass. This is optional if the
controller does not require any additional configuration.
ParametersRef can reference a standard Kubernetes resource, i.e. ConfigMap,
or an implementation-specific custom resource. The resource can be
cluster-scoped or namespace-scoped.
If the referent cannot be found, the GatewayClass's "InvalidParameters"
status condition will be true.
A Gateway for this GatewayClass may provide its own `parametersRef`. When both are specified,
the merging behavior is implementation specific.
It is generally recommended that GatewayClass provides defaults that can be overridden by a Gateway.
Support: Implementation-specific
properties:
group:
description: Group is the group of the referent.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is kind of the referent.
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 referent.
This field is required when referring to a Namespace-scoped resource and
MUST be unset when referring to a Cluster-scoped resource.
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
required:
- group
- kind
- name
type: object
required:
- controllerName
type: object
status:
default:
conditions:
- lastTransitionTime: "1970-01-01T00:00:00Z"
message: Waiting for controller
reason: Waiting
status: Unknown
type: Accepted
description: |-
Status defines the current state of GatewayClass.
Implementations MUST populate status on all GatewayClass resources which
specify their controller name.
properties:
conditions:
default:
- lastTransitionTime: "1970-01-01T00:00:00Z"
message: Waiting for controller
reason: Pending
status: Unknown
type: Accepted
description: |-
Conditions is the current status from the controller for
this GatewayClass.
Controllers should prefer to publish conditions using values
of GatewayClassConditionType for the type of each Condition.
items:
description: "Condition contains details for one aspect of the current
state of this API Resource.\n---\nThis struct is intended for
direct use as an array at the field path .status.conditions. For
example,\n\n\n\ttype FooStatus struct{\n\t // Represents the
observations of a foo's current state.\n\t // Known .status.conditions.type
are: \"Available\", \"Progressing\", and \"Degraded\"\n\t //
+patchMergeKey=type\n\t // +patchStrategy=merge\n\t // +listType=map\n\t
\ // +listMapKey=type\n\t Conditions []metav1.Condition `json:\"conditions,omitempty\"
patchStrategy:\"merge\" patchMergeKey:\"type\" protobuf:\"bytes,1,rep,name=conditions\"`\n\n\n\t
\ // other fields\n\t}"
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.
---
Many .condition.type values are consistent across resources like Available, but because arbitrary conditions can be
useful (see .node.status.conditions), the ability to deconflict is important.
The regex it matches is (dns1123SubdomainFmt/)?(qualifiedNameFmt)
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
type: array
x-kubernetes-list-map-keys:
- type
x-kubernetes-list-type: map
type: object
required:
- spec
type: object
served: true
storage: true
subresources:
status: {}
- additionalPrinterColumns:
- jsonPath: .spec.controllerName
name: Controller
type: string
- jsonPath: .status.conditions[?(@.type=="Accepted")].status
name: Accepted
type: string
- jsonPath: .metadata.creationTimestamp
name: Age
type: date
- jsonPath: .spec.description
name: Description
priority: 1
type: string
name: v1beta1
schema:
openAPIV3Schema:
description: |-
GatewayClass describes a class of Gateways available to the user for creating
Gateway resources.
It is recommended that this resource be used as a template for Gateways. This
means that a Gateway is based on the state of the GatewayClass at the time it
was created and changes to the GatewayClass or associated parameters are not
propagated down to existing Gateways. This recommendation is intended to
limit the blast radius of changes to GatewayClass or associated parameters.
If implementations choose to propagate GatewayClass changes to existing
Gateways, that MUST be clearly documented by the implementation.
Whenever one or more Gateways are using a GatewayClass, implementations SHOULD
add the `gateway-exists-finalizer.gateway.networking.k8s.io` finalizer on the
associated GatewayClass. This ensures that a GatewayClass associated with a
Gateway is not deleted while in use.
GatewayClass is a Cluster level resource.
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 GatewayClass.
properties:
controllerName:
description: |-
ControllerName is the name of the controller that is managing Gateways of
this class. The value of this field MUST be a domain prefixed path.
Example: "example.net/gateway-controller".
This field is not mutable and cannot be empty.
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])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
type: string
x-kubernetes-validations:
- message: Value is immutable
rule: self == oldSelf
description:
description: Description helps describe a GatewayClass with more details.
maxLength: 64
type: string
parametersRef:
description: |-
ParametersRef is a reference to a resource that contains the configuration
parameters corresponding to the GatewayClass. This is optional if the
controller does not require any additional configuration.
ParametersRef can reference a standard Kubernetes resource, i.e. ConfigMap,
or an implementation-specific custom resource. The resource can be
cluster-scoped or namespace-scoped.
If the referent cannot be found, the GatewayClass's "InvalidParameters"
status condition will be true.
A Gateway for this GatewayClass may provide its own `parametersRef`. When both are specified,
the merging behavior is implementation specific.
It is generally recommended that GatewayClass provides defaults that can be overridden by a Gateway.
Support: Implementation-specific
properties:
group:
description: Group is the group of the referent.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is kind of the referent.
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 referent.
This field is required when referring to a Namespace-scoped resource and
MUST be unset when referring to a Cluster-scoped resource.
maxLength: 63
minLength: 1
pattern: ^[a-z0-9]([-a-z0-9]*[a-z0-9])?$
type: string
required:
- group
- kind
- name
type: object
required:
- controllerName
type: object
status:
default:
conditions:
- lastTransitionTime: "1970-01-01T00:00:00Z"
message: Waiting for controller
reason: Waiting
status: Unknown
type: Accepted
description: |-
Status defines the current state of GatewayClass.
Implementations MUST populate status on all GatewayClass resources which
specify their controller name.
properties:
conditions:
default:
- lastTransitionTime: "1970-01-01T00:00:00Z"
message: Waiting for controller
reason: Pending
status: Unknown
type: Accepted
description: |-
Conditions is the current status from the controller for
this GatewayClass.
Controllers should prefer to publish conditions using values
of GatewayClassConditionType for the type of each Condition.
items:
description: "Condition contains details for one aspect of the current
state of this API Resource.\n---\nThis struct is intended for
direct use as an array at the field path .status.conditions. For
example,\n\n\n\ttype FooStatus struct{\n\t // Represents the
observations of a foo's current state.\n\t // Known .status.conditions.type
are: \"Available\", \"Progressing\", and \"Degraded\"\n\t //
+patchMergeKey=type\n\t // +patchStrategy=merge\n\t // +listType=map\n\t
\ // +listMapKey=type\n\t Conditions []metav1.Condition `json:\"conditions,omitempty\"
patchStrategy:\"merge\" patchMergeKey:\"type\" protobuf:\"bytes,1,rep,name=conditions\"`\n\n\n\t
\ // other fields\n\t}"
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.
---
Many .condition.type values are consistent across resources like Available, but because arbitrary conditions can be
useful (see .node.status.conditions), the ability to deconflict is important.
The regex it matches is (dns1123SubdomainFmt/)?(qualifiedNameFmt)
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
type: array
x-kubernetes-list-map-keys:
- type
x-kubernetes-list-type: map
type: object
required:
- spec
type: object
served: true
storage: false
subresources:
status: {}
status:
acceptedNames:
kind: ""
plural: ""
conditions: null
storedVersions: null
---
#
# config/crd/standard/gateway.networking.k8s.io_gateways.yaml
#
apiVersion: apiextensions.k8s.io/v1
kind: CustomResourceDefinition
metadata:
annotations:
api-approved.kubernetes.io: https://github.com/kubernetes-sigs/gateway-api/pull/2997
gateway.networking.k8s.io/bundle-version: v1.1.0
gateway.networking.k8s.io/channel: standard
creationTimestamp: null
name: gateways.gateway.networking.k8s.io
spec:
group: gateway.networking.k8s.io
names:
categories:
- gateway-api
kind: Gateway
listKind: GatewayList
plural: gateways
shortNames:
- gtw
singular: gateway
scope: Namespaced
versions:
- additionalPrinterColumns:
- jsonPath: .spec.gatewayClassName
name: Class
type: string
- jsonPath: .status.addresses[*].value
name: Address
type: string
- jsonPath: .status.conditions[?(@.type=="Programmed")].status
name: Programmed
type: string
- jsonPath: .metadata.creationTimestamp
name: Age
type: date
name: v1
schema:
openAPIV3Schema:
description: |-
Gateway represents an instance of a service-traffic handling infrastructure
by binding Listeners to a set of IP addresses.
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 Gateway.
properties:
addresses:
description: |+
Addresses requested for this Gateway. This is optional and behavior can
depend on the implementation. If a value is set in the spec and the
requested address is invalid or unavailable, the implementation MUST
indicate this in the associated entry in GatewayStatus.Addresses.
The Addresses field represents a request for the address(es) on the
"outside of the Gateway", that traffic bound for this Gateway will use.
This could be the IP address or hostname of an external load balancer or
other networking infrastructure, or some other address that traffic will
be sent to.
If no Addresses are specified, the implementation MAY schedule the
Gateway in an implementation-specific manner, assigning an appropriate
set of Addresses.
The implementation MUST bind all Listeners to every GatewayAddress that
it assigns to the Gateway and add a corresponding entry in
GatewayStatus.Addresses.
Support: Extended
items:
description: GatewayAddress describes an address that can be bound
to a Gateway.
oneOf:
- properties:
type:
enum:
- IPAddress
value:
anyOf:
- format: ipv4
- format: ipv6
- properties:
type:
not:
enum:
- IPAddress
properties:
type:
default: IPAddress
description: Type of the address.
maxLength: 253
minLength: 1
pattern: ^Hostname|IPAddress|NamedAddress|[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*\/[A-Za-z0-9\/\-._~%!$&'()*+,;=:]+$
type: string
value:
description: |-
Value of the address. The validity of the values will depend
on the type and support by the controller.
Examples: `1.2.3.4`, `128::1`, `my-ip-address`.
maxLength: 253
minLength: 1
type: string
required:
- value
type: object
x-kubernetes-validations:
- message: Hostname value must only contain valid characters (matching
^(\*\.)?[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$)
rule: 'self.type == ''Hostname'' ? self.value.matches(r"""^(\*\.)?[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$"""):
true'
maxItems: 16
type: array
x-kubernetes-validations:
- message: IPAddress values must be unique
rule: 'self.all(a1, a1.type == ''IPAddress'' ? self.exists_one(a2,
a2.type == a1.type && a2.value == a1.value) : true )'
- message: Hostname values must be unique
rule: 'self.all(a1, a1.type == ''Hostname'' ? self.exists_one(a2,
a2.type == a1.type && a2.value == a1.value) : true )'
gatewayClassName:
description: |-
GatewayClassName used for this Gateway. This is the name of a
GatewayClass resource.
maxLength: 253
minLength: 1
type: string
listeners:
description: |-
Listeners associated with this Gateway. Listeners define
logical endpoints that are bound on this Gateway's addresses.
At least one Listener MUST be specified.
Each Listener in a set of Listeners (for example, in a single Gateway)
MUST be _distinct_, in that a traffic flow MUST be able to be assigned to
exactly one listener. (This section uses "set of Listeners" rather than
"Listeners in a single Gateway" because implementations MAY merge configuration
from multiple Gateways onto a single data plane, and these rules _also_
apply in that case).
Practically, this means that each listener in a set MUST have a unique
combination of Port, Protocol, and, if supported by the protocol, Hostname.
Some combinations of port, protocol, and TLS settings are considered
Core support and MUST be supported by implementations based on their
targeted conformance profile:
HTTP Profile
1. HTTPRoute, Port: 80, Protocol: HTTP
2. HTTPRoute, Port: 443, Protocol: HTTPS, TLS Mode: Terminate, TLS keypair provided
TLS Profile
1. TLSRoute, Port: 443, Protocol: TLS, TLS Mode: Passthrough
"Distinct" Listeners have the following property:
The implementation can match inbound requests to a single distinct
Listener. When multiple Listeners share values for fields (for
example, two Listeners with the same Port value), the implementation
can match requests to only one of the Listeners using other
Listener fields.
For example, the following Listener scenarios are distinct:
1. Multiple Listeners with the same Port that all use the "HTTP"
Protocol that all have unique Hostname values.
2. Multiple Listeners with the same Port that use either the "HTTPS" or
"TLS" Protocol that all have unique Hostname values.
3. A mixture of "TCP" and "UDP" Protocol Listeners, where no Listener
with the same Protocol has the same Port value.
Some fields in the Listener struct have possible values that affect
whether the Listener is distinct. Hostname is particularly relevant
for HTTP or HTTPS protocols.
When using the Hostname value to select between same-Port, same-Protocol
Listeners, the Hostname value must be different on each Listener for the
Listener to be distinct.
When the Listeners are distinct based on Hostname, inbound request
hostnames MUST match from the most specific to least specific Hostname
values to choose the correct Listener and its associated set of Routes.
Exact matches must be processed before wildcard matches, and wildcard
matches must be processed before fallback (empty Hostname value)
matches. For example, `"foo.example.com"` takes precedence over
`"*.example.com"`, and `"*.example.com"` takes precedence over `""`.
Additionally, if there are multiple wildcard entries, more specific
wildcard entries must be processed before less specific wildcard entries.
For example, `"*.foo.example.com"` takes precedence over `"*.example.com"`.
The precise definition here is that the higher the number of dots in the
hostname to the right of the wildcard character, the higher the precedence.
The wildcard character will match any number of characters _and dots_ to
the left, however, so `"*.example.com"` will match both
`"foo.bar.example.com"` _and_ `"bar.example.com"`.
If a set of Listeners contains Listeners that are not distinct, then those
Listeners are Conflicted, and the implementation MUST set the "Conflicted"
condition in the Listener Status to "True".
Implementations MAY choose to accept a Gateway with some Conflicted
Listeners only if they only accept the partial Listener set that contains
no Conflicted Listeners. To put this another way, implementations may
accept a partial Listener set only if they throw out *all* the conflicting
Listeners. No picking one of the conflicting listeners as the winner.
This also means that the Gateway must have at least one non-conflicting
Listener in this case, otherwise it violates the requirement that at
least one Listener must be present.
The implementation MUST set a "ListenersNotValid" condition on the
Gateway Status when the Gateway contains Conflicted Listeners whether or
not they accept the Gateway. That Condition SHOULD clearly
indicate in the Message which Listeners are conflicted, and which are
Accepted. Additionally, the Listener status for those listeners SHOULD
indicate which Listeners are conflicted and not Accepted.
A Gateway's Listeners are considered "compatible" if:
1. They are distinct.
2. The implementation can serve them in compliance with the Addresses
requirement that all Listeners are available on all assigned
addresses.
Compatible combinations in Extended support are expected to vary across
implementations. A combination that is compatible for one implementation
may not be compatible for another.
For example, an implementation that cannot serve both TCP and UDP listeners
on the same address, or cannot mix HTTPS and generic TLS listens on the same port
would not consider those cases compatible, even though they are distinct.
Note that requests SHOULD match at most one Listener. For example, if
Listeners are defined for "foo.example.com" and "*.example.com", a
request to "foo.example.com" SHOULD only be routed using routes attached
to the "foo.example.com" Listener (and not the "*.example.com" Listener).
This concept is known as "Listener Isolation". Implementations that do
not support Listener Isolation MUST clearly document this.
Implementations MAY merge separate Gateways onto a single set of
Addresses if all Listeners across all Gateways are compatible.
Support: Core
items:
description: |-
Listener embodies the concept of a logical endpoint where a Gateway accepts
network connections.
properties:
allowedRoutes:
default:
namespaces:
from: Same
description: |-
AllowedRoutes defines the types of routes that MAY be attached to a
Listener and the trusted namespaces where those Route resources MAY be
present.
Although a client request may match multiple route rules, only one rule
may ultimately receive the request. Matching precedence MUST be
determined in order of the following criteria:
* The most specific match as defined by the Route type.
* The oldest Route based on creation timestamp. For example, a Route with
a creation timestamp of "2020-09-08 01:02:03" is given precedence over
a Route with a creation timestamp of "2020-09-08 01:02:04".
* If everything else is equivalent, the Route appearing first in
alphabetical order (namespace/name) should be given precedence. For
example, foo/bar is given precedence over foo/baz.
All valid rules within a Route attached to this Listener should be
implemented. Invalid Route rules can be ignored (sometimes that will mean
the full Route). If a Route rule transitions from valid to invalid,
support for that Route rule should be dropped to ensure consistency. For
example, even if a filter specified by a Route rule is invalid, the rest
of the rules within that Route should still be supported.
Support: Core
properties:
kinds:
description: |-
Kinds specifies the groups and kinds of Routes that are allowed to bind
to this Gateway Listener. When unspecified or empty, the kinds of Routes
selected are determined using the Listener protocol.
A RouteGroupKind MUST correspond to kinds of Routes that are compatible
with the application protocol specified in the Listener's Protocol field.
If an implementation does not support or recognize this resource type, it
MUST set the "ResolvedRefs" condition to False for this Listener with the
"InvalidRouteKinds" reason.
Support: Core
items:
description: RouteGroupKind indicates the group and kind
of a Route resource.
properties:
group:
default: gateway.networking.k8s.io
description: Group is the group of the Route.
maxLength: 253
pattern: ^$|^[a-z0-9]([-a-z0-9]*[a-z0-9])?(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$
type: string
kind:
description: Kind is the kind of the Route.
maxLength: 63
minLength: 1
pattern: ^[a-zA-Z]([-a-zA-Z0-9]*[a-zA-Z0-9])?$
type: string
required:
- kind
type: object
maxItems: 8
type: array
namespaces:
default:
from: Same
description: |-
Namespaces indicates namespaces from which Routes may be attached to this
Listener. This is restricted to the namespace of this Gateway by default.
Support: Core
properties:
from:
default: Same
description: |-
From indicates where Routes will be selected for this Gateway. Possible
values are:
* All: Routes in all namespaces may be used by this Gateway.
* Selector: Routes in namespaces selected by the selector may be used by
this Gateway.
* Same: Only Routes in the same namespace may be used by this Gateway.
Support: Core
enum:
- All
- Selector
- Same
type: string
selector:
description: |-
Selector must be specified when From is set to "Selector". In that case,
only Routes in Namespaces matching this Selector will be selected by this
Gateway. This field is ignored for other values of "From".
Support: Core
properties:
matchExpressions:
description: matchExpressions is a list of label
selector requirements. The requirements are ANDed.
items:
description: |-
A label selector requirement is a selector that contains values, a key, and an operator that
relates the key and values.
properties:
key:
description: key is the label key that the
selector applies to.
type: string
operator:
description: |-
operator represents a key's relationship to a set of values.
Valid operators are In, NotIn, Exists and DoesNotExist.
type: string
values:
description: |-
values is an array of string values. If the operator is In or NotIn,
the values array must be non-empty. If the operator is Exists or DoesNotExist,
the values array must be empty. This array is replaced during a strategic
merge patch.
items:
type: string
type: array
x-kubernetes-list-type: atomic
required:
- key
- operator
type: object
type: array
x-kubernetes-list-type: atomic
matchLabels:
additionalProperties:
type: string
description: |-
matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels
map is equivalent to an element of matchExpressions, whose key field is "key", the
operator is "In", and the values array contains only "value". The requirements are ANDed.
type: object
type: object
x-kubernetes-map-type: atomic