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feat(gateway-api): Add custom backendRef and filters support for HTTP…
…Route Signed-off-by: kahirokunn <okinakahiro@gmail.com>
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| /* | ||
| Copyright 2021 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. | ||
| */ | ||
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| package v1beta1 | ||
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| import metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
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| // +genclient | ||
| // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object | ||
| // +kubebuilder:object:root=true | ||
| // +kubebuilder:resource:categories=gateway-api,shortName=refgrant | ||
| // +kubebuilder:printcolumn:name="Age",type=date,JSONPath=`.metadata.creationTimestamp` | ||
| // +kubebuilder:storageversion | ||
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| // ReferenceGrant identifies kinds of resources in other namespaces that are | ||
| // trusted to reference the specified kinds of resources in the same namespace | ||
| // as the policy. | ||
| // | ||
| // Each ReferenceGrant can be used to represent a unique trust relationship. | ||
| // Additional Reference Grants can be used to add to the set of trusted | ||
| // sources of inbound references for the namespace they are defined within. | ||
| // | ||
| // All cross-namespace references in Gateway API (with the exception of cross-namespace | ||
| // Gateway-route attachment) require a ReferenceGrant. | ||
| // | ||
| // ReferenceGrant is a form of runtime verification allowing users to assert | ||
| // which cross-namespace object references are permitted. Implementations that | ||
| // support ReferenceGrant MUST NOT permit cross-namespace references which have | ||
| // no grant, and MUST respond to the removal of a grant by revoking the access | ||
| // that the grant allowed. | ||
| type ReferenceGrant struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ObjectMeta `json:"metadata,omitempty"` | ||
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| // Spec defines the desired state of ReferenceGrant. | ||
| Spec ReferenceGrantSpec `json:"spec,omitempty"` | ||
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| // Note that `Status` sub-resource has been excluded at the | ||
| // moment as it was difficult to work out the design. | ||
| // `Status` sub-resource may be added in future. | ||
| } | ||
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| // +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object | ||
| // +kubebuilder:object:root=true | ||
| // ReferenceGrantList contains a list of ReferenceGrant. | ||
| type ReferenceGrantList struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ListMeta `json:"metadata,omitempty"` | ||
| Items []ReferenceGrant `json:"items"` | ||
| } | ||
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| // ReferenceGrantSpec identifies a cross namespace relationship that is trusted | ||
| // for Gateway API. | ||
| type ReferenceGrantSpec struct { | ||
| // From describes the trusted namespaces and kinds that can reference the | ||
| // resources described in "To". Each entry in this list MUST be considered | ||
| // to be an additional place that references can be valid from, or to put | ||
| // this another way, entries MUST be combined using OR. | ||
| // | ||
| // Support: Core | ||
| // | ||
| // +kubebuilder:validation:MinItems=1 | ||
| // +kubebuilder:validation:MaxItems=16 | ||
| From []ReferenceGrantFrom `json:"from"` | ||
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| // To describes the resources that may be referenced by the resources | ||
| // described in "From". Each entry in this list MUST be considered to be an | ||
| // additional place that references can be valid to, or to put this another | ||
| // way, entries MUST be combined using OR. | ||
| // | ||
| // Support: Core | ||
| // | ||
| // +kubebuilder:validation:MinItems=1 | ||
| // +kubebuilder:validation:MaxItems=16 | ||
| To []ReferenceGrantTo `json:"to"` | ||
| } | ||
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| // ReferenceGrantFrom describes trusted namespaces and kinds. | ||
| type ReferenceGrantFrom struct { | ||
| // Group is the group of the referent. | ||
| // When empty, the Kubernetes core API group is inferred. | ||
| // | ||
| // Support: Core | ||
| Group Group `json:"group"` | ||
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| // Kind is the kind of the referent. Although implementations may support | ||
| // additional resources, the following types are part of the "Core" | ||
| // support level for this field. | ||
| // | ||
| // When used to permit a SecretObjectReference: | ||
| // | ||
| // * Gateway | ||
| // | ||
| // When used to permit a BackendObjectReference: | ||
| // | ||
| // * GRPCRoute | ||
| // * HTTPRoute | ||
| // * TCPRoute | ||
| // * TLSRoute | ||
| // * UDPRoute | ||
| Kind Kind `json:"kind"` | ||
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| // Namespace is the namespace of the referent. | ||
| // | ||
| // Support: Core | ||
| Namespace Namespace `json:"namespace"` | ||
| } | ||
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| // ReferenceGrantTo describes what Kinds are allowed as targets of the | ||
| // references. | ||
| type ReferenceGrantTo struct { | ||
| // Group is the group of the referent. | ||
| // When empty, the Kubernetes core API group is inferred. | ||
| // | ||
| // Support: Core | ||
| Group Group `json:"group"` | ||
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| // Kind is the kind of the referent. Although implementations may support | ||
| // additional resources, the following types are part of the "Core" | ||
| // support level for this field: | ||
| // | ||
| // * Secret when used to permit a SecretObjectReference | ||
| // * Service when used to permit a BackendObjectReference | ||
| Kind Kind `json:"kind"` | ||
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| // Name is the name of the referent. When unspecified, this policy | ||
| // refers to all resources of the specified Group and Kind in the local | ||
| // namespace. | ||
| // | ||
| // +optional | ||
| Name *ObjectName `json:"name,omitempty"` | ||
| } |
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