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Merge pull request #3655 from tigera/gateway-api-ep1
Cherry pick Gateway API work to branch for 3.21ep1
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| // Copyright (c) 2024 Tigera, Inc. All rights reserved. | ||
| /* | ||
| 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 v1 | ||
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| import ( | ||
| appsv1 "k8s.io/api/apps/v1" | ||
| v1 "k8s.io/api/core/v1" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| ) | ||
|
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| // GatewayAPISpec has fields that can be used to customize our GatewayAPI support. | ||
| type GatewayAPISpec struct { | ||
| // Allow optional customization of the gateway controller deployment. | ||
| GatewayControllerDeployment *GatewayControllerDeployment `json:"gatewayControllerDeployment,omitempty"` | ||
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| // Allow optional customization of the gateway certgen job. | ||
| GatewayCertgenJob *GatewayCertgenJob `json:"gatewayCertgenJob,omitempty"` | ||
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| // Allow optional customization of gateway deployments. | ||
| GatewayDeployment *GatewayDeployment `json:"gatewayDeployment,omitempty"` | ||
| } | ||
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| //+kubebuilder:object:root=true | ||
| //+kubebuilder:resource:scope=Cluster | ||
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| type GatewayAPI struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ObjectMeta `json:"metadata,omitempty"` | ||
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| Spec GatewayAPISpec `json:"spec,omitempty"` | ||
| } | ||
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| //+kubebuilder:object:root=true | ||
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| type GatewayAPIList struct { | ||
| metav1.TypeMeta `json:",inline"` | ||
| metav1.ListMeta `json:"metadata,omitempty"` | ||
| Items []GatewayAPI `json:"items"` | ||
| } | ||
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| func init() { | ||
| SchemeBuilder.Register(&GatewayAPI{}, &GatewayAPIList{}) | ||
| } | ||
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| // GatewayControllerDeployment allows customization of the gateway controller deployment. | ||
| // | ||
| // If GatewayControllerDeployment.Metadata is non-nil, non-clashing labels and annotations from that | ||
| // metadata are added into the deployment's top-level metadata. | ||
| // | ||
| // For customization of the deployment spec see GatewayControllerDeploymentSpec. | ||
| type GatewayControllerDeployment struct { | ||
| // +optional | ||
| Metadata *Metadata `json:"metadata,omitempty"` | ||
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| // +optional | ||
| Spec *GatewayControllerDeploymentSpec `json:"spec,omitempty"` | ||
| } | ||
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| // GatewayControllerDeploymentSpec allows customization of the gateway controller deployment spec. | ||
| // | ||
| // If GatewayControllerDeployment.Spec.MinReadySeconds is non-nil, it sets the minReadySeconds field | ||
| // for the deployment. | ||
| // | ||
| // For customization of the pod template see GatewayControllerDeploymentPodTemplate. | ||
| type GatewayControllerDeploymentSpec struct { | ||
| // +optional | ||
| // +kubebuilder:validation:Minimum=0 | ||
| // +kubebuilder:validation:Maximum=2147483647 | ||
| MinReadySeconds *int32 `json:"minReadySeconds,omitempty"` | ||
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| // +optional | ||
| Template *GatewayControllerDeploymentPodTemplate `json:"template,omitempty"` | ||
| } | ||
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| // GatewayControllerDeploymentPodTemplate allows customization of the gateway controller deployment | ||
| // pod template. | ||
| // | ||
| // If GatewayControllerDeployment.Spec.Template.Metadata is non-nil, non-clashing labels and | ||
| // annotations from that metadata are added into the deployment's pod template. | ||
| // | ||
| // For customization of the pod template spec see GatewayControllerDeploymentPodSpec. | ||
| type GatewayControllerDeploymentPodTemplate struct { | ||
| // +optional | ||
| Metadata *Metadata `json:"metadata,omitempty"` | ||
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| // +optional | ||
| Spec *GatewayControllerDeploymentPodSpec `json:"spec,omitempty"` | ||
| } | ||
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| // GatewayControllerDeploymentPodSpec allows customization of the gateway controller deployment pod | ||
| // spec. | ||
| // | ||
| // If GatewayControllerDeployment.Spec.Template.Spec.Affinity is non-nil, it sets the affinity field | ||
| // of the deployment's pod template. | ||
| // | ||
| // If GatewayControllerDeployment.Spec.Template.Spec.NodeSelector is non-nil, it sets a node | ||
| // selector for where controller pods may be scheduled. | ||
| // | ||
| // If GatewayControllerDeployment.Spec.Template.Spec.Tolerations is non-nil, it sets the tolerations | ||
| // field of the deployment's pod template. | ||
| // | ||
| // For customization of container resources see GatewayControllerDeploymentContainer. | ||
| type GatewayControllerDeploymentPodSpec struct { | ||
| // +optional | ||
| Affinity *v1.Affinity `json:"affinity"` | ||
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| // +optional | ||
| Containers []GatewayControllerDeploymentContainer `json:"containers,omitempty"` | ||
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| // +optional | ||
| NodeSelector map[string]string `json:"nodeSelector,omitempty"` | ||
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| // +optional | ||
| Tolerations []v1.Toleration `json:"tolerations"` | ||
| } | ||
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| // GatewayControllerDeploymentContainer allows customization of the gateway controller's resource | ||
| // requirements. | ||
| // | ||
| // If GatewayControllerDeployment.Spec.Template.Spec.Containers["envoy-gateway"].Resources is | ||
| // non-nil, it overrides the ResourceRequirements of the controller's "envoy-gateway" container. | ||
| type GatewayControllerDeploymentContainer struct { | ||
| // +kubebuilder:validation:Enum=envoy-gateway | ||
| Name string `json:"name"` | ||
|
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| // +optional | ||
| Resources *v1.ResourceRequirements `json:"resources,omitempty"` | ||
| } | ||
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| // GatewayCertgenJob allows customization of the gateway certgen job. | ||
| // | ||
| // If GatewayCertgenJob.Metadata is non-nil, non-clashing labels and annotations from that metadata | ||
| // are added into the job's top-level metadata. | ||
| // | ||
| // For customization of the job spec see GatewayCertgenJobSpec. | ||
| type GatewayCertgenJob struct { | ||
| // +optional | ||
| Metadata *Metadata `json:"metadata,omitempty"` | ||
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| // +optional | ||
| Spec *GatewayCertgenJobSpec `json:"spec,omitempty"` | ||
| } | ||
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| // GatewayCertgenJobSpec allows customization of the gateway certgen job spec. | ||
| // | ||
| // For customization of the job template see GatewayCertgenJobPodTemplate. | ||
| type GatewayCertgenJobSpec struct { | ||
| // +optional | ||
| Template *GatewayCertgenJobPodTemplate `json:"template,omitempty"` | ||
| } | ||
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| // GatewayCertgenJobPodTemplate allows customization of the gateway certgen job's pod template. | ||
| // | ||
| // If GatewayCertgenJob.Spec.Template.Metadata is non-nil, non-clashing labels and | ||
| // annotations from that metadata are added into the job's pod template. | ||
| // | ||
| // For customization of the pod template spec see GatewayCertgenJobPodSpec. | ||
| type GatewayCertgenJobPodTemplate struct { | ||
| // +optional | ||
| Metadata *Metadata `json:"metadata,omitempty"` | ||
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| // +optional | ||
| Spec *GatewayCertgenJobPodSpec `json:"spec,omitempty"` | ||
| } | ||
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| // GatewayCertgenJobPodSpec allows customization of the gateway certgen job's pod spec. | ||
| // | ||
| // If GatewayCertgenJob.Spec.Template.Spec.Affinity is non-nil, it sets the affinity field of the | ||
| // job's pod template. | ||
| // | ||
| // If GatewayCertgenJob.Spec.Template.Spec.NodeSelector is non-nil, it sets a node selector for | ||
| // where job pods may be scheduled. | ||
| // | ||
| // If GatewayCertgenJob.Spec.Template.Spec.Tolerations is non-nil, it sets the tolerations field of | ||
| // the job's pod template. | ||
| // | ||
| // For customization of job container resources see GatewayCertgenJobContainer. | ||
| type GatewayCertgenJobPodSpec struct { | ||
| // +optional | ||
| Affinity *v1.Affinity `json:"affinity"` | ||
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| // +optional | ||
| Containers []GatewayCertgenJobContainer `json:"containers,omitempty"` | ||
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| // +optional | ||
| NodeSelector map[string]string `json:"nodeSelector,omitempty"` | ||
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| // +optional | ||
| Tolerations []v1.Toleration `json:"tolerations"` | ||
| } | ||
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| // GatewayCertgenJobContainer allows customization of the gateway certgen job's resource | ||
| // requirements. | ||
| // | ||
| // If GatewayCertgenJob.Spec.Template.Spec.Containers["envoy-gateway-certgen"].Resources is non-nil, | ||
| // it overrides the ResourceRequirements of the job's "envoy-gateway-certgen" container. | ||
| type GatewayCertgenJobContainer struct { | ||
| // +kubebuilder:validation:Enum=envoy-gateway-certgen | ||
| Name string `json:"name"` | ||
|
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| // +optional | ||
| Resources *v1.ResourceRequirements `json:"resources,omitempty"` | ||
| } | ||
|
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| // GatewayDeployment allows customization of gateway deployments. | ||
| // | ||
| // For detail see GatewayDeploymentSpec. | ||
| type GatewayDeployment struct { | ||
| // +optional | ||
| Spec *GatewayDeploymentSpec `json:"spec,omitempty"` | ||
| } | ||
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| // GatewayDeploymentSpec allows customization of the spec of gateway deployments. | ||
| // | ||
| // For customization of the pod template see GatewayDeploymentPodTemplate. | ||
| // | ||
| // For customization of the deployment strategy see GatewayDeploymentStrategy. | ||
| type GatewayDeploymentSpec struct { | ||
| // +optional | ||
| Template *GatewayDeploymentPodTemplate `json:"template,omitempty"` | ||
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| // The deployment strategy to use to replace existing pods with new ones. | ||
| // +optional | ||
| // +patchStrategy=retainKeys | ||
| Strategy *GatewayDeploymentStrategy `json:"strategy,omitempty" patchStrategy:"retainKeys" protobuf:"bytes,4,opt,name=strategy"` | ||
| } | ||
|
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| // GatewayDeploymentPodTemplate allows customization of the pod template of gateway deployments. | ||
| // | ||
| // If GatewayDeployment.Spec.Template.Metadata is non-nil, non-clashing labels and annotations from | ||
| // that metadata are added into each deployment's pod template. | ||
| // | ||
| // For customization of the pod template spec see GatewayDeploymentPodSpec. | ||
| type GatewayDeploymentPodTemplate struct { | ||
| // +optional | ||
| Metadata *Metadata `json:"metadata,omitempty"` | ||
|
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| // +optional | ||
| Spec *GatewayDeploymentPodSpec `json:"spec,omitempty"` | ||
| } | ||
|
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| // GatewayDeploymentPodSpec allows customization of the pod spec of gateway deployments. | ||
| // | ||
| // If GatewayDeployment.Spec.Template.Spec.Affinity is non-nil, it sets the affinity field of each | ||
| // deployment's pod template. | ||
| // | ||
| // If GatewayDeployment.Spec.Template.Spec.NodeSelector is non-nil, it sets a node selector for | ||
| // where gateway pods may be scheduled. | ||
| // | ||
| // If GatewayDeployment.Spec.Template.Spec.Tolerations is non-nil, it sets the tolerations field of | ||
| // each deployment's pod template. | ||
| // | ||
| // If GatewayDeployment.Spec.Template.Spec.TopologySpreadConstraints is non-nil, it sets the | ||
| // topology spread constraints of each deployment's pod template. | ||
| // | ||
| // For customization of container resources see GatewayControllerDeploymentContainer. | ||
| type GatewayDeploymentPodSpec struct { | ||
| // +optional | ||
| Affinity *v1.Affinity `json:"affinity"` | ||
|
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| // +optional | ||
| Containers []GatewayDeploymentContainer `json:"containers,omitempty"` | ||
|
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| // +optional | ||
| NodeSelector map[string]string `json:"nodeSelector,omitempty"` | ||
|
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| // TopologySpreadConstraints describes how a group of pods ought to spread across topology | ||
| // domains. Scheduler will schedule pods in a way which abides by the constraints. | ||
| // All topologySpreadConstraints are ANDed. | ||
| // +optional | ||
| TopologySpreadConstraints []v1.TopologySpreadConstraint `json:"topologySpreadConstraints,omitempty"` | ||
|
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| // +optional | ||
| Tolerations []v1.Toleration `json:"tolerations"` | ||
| } | ||
|
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| // GatewayDeploymentContainer allows customization of the resource requirements of gateway | ||
| // deployments. | ||
| // | ||
| // If GatewayDeployment.Spec.Template.Spec.Containers["envoy"].Resources is non-nil, it overrides | ||
| // the ResourceRequirements of the "envoy" container in each gateway deployment. | ||
| type GatewayDeploymentContainer struct { | ||
| // +kubebuilder:validation:Enum=envoy | ||
| Name string `json:"name"` | ||
|
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| // +optional | ||
| Resources *v1.ResourceRequirements `json:"resources,omitempty"` | ||
| } | ||
|
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| // GatewayDeploymentStrategy allows customization of the deployment strategy for gateway | ||
| // deployments. | ||
| // | ||
| // If GatewayDeployment.Spec.Strategy is non-nil, gateway deployments are set to use a rolling | ||
| // update strategy, with the parameters specified in GatewayDeployment.Spec.Strategy. | ||
| // | ||
| // Only RollingUpdate is supported at this time so the Type field is not exposed. | ||
| type GatewayDeploymentStrategy struct { | ||
| // +optional | ||
| RollingUpdate *appsv1.RollingUpdateDeployment `json:"rollingUpdate,omitempty" protobuf:"bytes,2,opt,name=rollingUpdate"` | ||
| } |
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