556 lines
17 KiB
Go
556 lines
17 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package v1
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import (
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"fmt"
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"reflect"
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"k8s.io/api/core/v1"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/conversion"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/util/validation/field"
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"k8s.io/kubernetes/pkg/api"
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"k8s.io/kubernetes/pkg/apis/extensions"
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)
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// This is a "fast-path" that avoids reflection for common types. It focuses on the objects that are
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// converted the most in the cluster.
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// TODO: generate one of these for every external API group - this is to prove the impact
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func addFastPathConversionFuncs(scheme *runtime.Scheme) error {
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scheme.AddGenericConversionFunc(func(objA, objB interface{}, s conversion.Scope) (bool, error) {
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switch a := objA.(type) {
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case *v1.Pod:
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switch b := objB.(type) {
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case *api.Pod:
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return true, Convert_v1_Pod_To_api_Pod(a, b, s)
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}
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case *api.Pod:
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switch b := objB.(type) {
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case *v1.Pod:
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return true, Convert_api_Pod_To_v1_Pod(a, b, s)
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}
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case *v1.Event:
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switch b := objB.(type) {
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case *api.Event:
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return true, Convert_v1_Event_To_api_Event(a, b, s)
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}
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case *api.Event:
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switch b := objB.(type) {
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case *v1.Event:
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return true, Convert_api_Event_To_v1_Event(a, b, s)
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}
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case *v1.ReplicationController:
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switch b := objB.(type) {
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case *api.ReplicationController:
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return true, Convert_v1_ReplicationController_To_api_ReplicationController(a, b, s)
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}
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case *api.ReplicationController:
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switch b := objB.(type) {
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case *v1.ReplicationController:
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return true, Convert_api_ReplicationController_To_v1_ReplicationController(a, b, s)
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}
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case *v1.Node:
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switch b := objB.(type) {
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case *api.Node:
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return true, Convert_v1_Node_To_api_Node(a, b, s)
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}
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case *api.Node:
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switch b := objB.(type) {
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case *v1.Node:
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return true, Convert_api_Node_To_v1_Node(a, b, s)
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}
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case *v1.Namespace:
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switch b := objB.(type) {
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case *api.Namespace:
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return true, Convert_v1_Namespace_To_api_Namespace(a, b, s)
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}
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case *api.Namespace:
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switch b := objB.(type) {
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case *v1.Namespace:
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return true, Convert_api_Namespace_To_v1_Namespace(a, b, s)
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}
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case *v1.Service:
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switch b := objB.(type) {
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case *api.Service:
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return true, Convert_v1_Service_To_api_Service(a, b, s)
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}
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case *api.Service:
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switch b := objB.(type) {
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case *v1.Service:
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return true, Convert_api_Service_To_v1_Service(a, b, s)
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}
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case *v1.Endpoints:
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switch b := objB.(type) {
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case *api.Endpoints:
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return true, Convert_v1_Endpoints_To_api_Endpoints(a, b, s)
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}
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case *api.Endpoints:
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switch b := objB.(type) {
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case *v1.Endpoints:
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return true, Convert_api_Endpoints_To_v1_Endpoints(a, b, s)
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}
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case *metav1.WatchEvent:
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switch b := objB.(type) {
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case *metav1.InternalEvent:
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return true, metav1.Convert_versioned_Event_to_versioned_InternalEvent(a, b, s)
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}
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case *metav1.InternalEvent:
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switch b := objB.(type) {
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case *metav1.WatchEvent:
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return true, metav1.Convert_versioned_InternalEvent_to_versioned_Event(a, b, s)
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}
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}
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return false, nil
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})
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return nil
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}
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func addConversionFuncs(scheme *runtime.Scheme) error {
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// Add non-generated conversion functions
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err := scheme.AddConversionFuncs(
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Convert_api_Pod_To_v1_Pod,
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Convert_api_PodSpec_To_v1_PodSpec,
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Convert_api_ReplicationControllerSpec_To_v1_ReplicationControllerSpec,
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Convert_api_ServiceSpec_To_v1_ServiceSpec,
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Convert_v1_Pod_To_api_Pod,
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Convert_v1_PodSpec_To_api_PodSpec,
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Convert_v1_ReplicationControllerSpec_To_api_ReplicationControllerSpec,
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Convert_v1_Secret_To_api_Secret,
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Convert_v1_ServiceSpec_To_api_ServiceSpec,
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Convert_v1_ResourceList_To_api_ResourceList,
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Convert_v1_ReplicationController_to_extensions_ReplicaSet,
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Convert_v1_ReplicationControllerSpec_to_extensions_ReplicaSetSpec,
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Convert_v1_ReplicationControllerStatus_to_extensions_ReplicaSetStatus,
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Convert_extensions_ReplicaSet_to_v1_ReplicationController,
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Convert_extensions_ReplicaSetSpec_to_v1_ReplicationControllerSpec,
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Convert_extensions_ReplicaSetStatus_to_v1_ReplicationControllerStatus,
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)
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if err != nil {
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return err
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}
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// Add field conversion funcs.
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err = scheme.AddFieldLabelConversionFunc("v1", "Pod",
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func(label, value string) (string, string, error) {
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switch label {
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case "metadata.annotations",
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"metadata.labels",
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"metadata.name",
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"metadata.namespace",
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"metadata.uid",
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"spec.nodeName",
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"spec.restartPolicy",
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"spec.serviceAccountName",
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"spec.schedulerName",
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"status.phase",
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"status.hostIP",
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"status.podIP":
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return label, value, nil
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// This is for backwards compatibility with old v1 clients which send spec.host
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case "spec.host":
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return "spec.nodeName", value, nil
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default:
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return "", "", fmt.Errorf("field label not supported: %s", label)
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}
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},
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)
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if err != nil {
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return err
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}
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err = scheme.AddFieldLabelConversionFunc("v1", "Node",
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func(label, value string) (string, string, error) {
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switch label {
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case "metadata.name":
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return label, value, nil
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case "spec.unschedulable":
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return label, value, nil
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default:
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return "", "", fmt.Errorf("field label not supported: %s", label)
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}
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},
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)
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if err != nil {
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return err
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}
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err = scheme.AddFieldLabelConversionFunc("v1", "ReplicationController",
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func(label, value string) (string, string, error) {
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switch label {
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case "metadata.name",
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"metadata.namespace",
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"status.replicas":
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return label, value, nil
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default:
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return "", "", fmt.Errorf("field label not supported: %s", label)
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}
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})
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if err != nil {
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return err
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}
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if err := AddFieldLabelConversionsForEvent(scheme); err != nil {
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return err
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}
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if err := AddFieldLabelConversionsForNamespace(scheme); err != nil {
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return err
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}
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if err := AddFieldLabelConversionsForSecret(scheme); err != nil {
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return err
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}
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return nil
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}
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func Convert_v1_ReplicationController_to_extensions_ReplicaSet(in *v1.ReplicationController, out *extensions.ReplicaSet, s conversion.Scope) error {
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out.ObjectMeta = in.ObjectMeta
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if err := Convert_v1_ReplicationControllerSpec_to_extensions_ReplicaSetSpec(&in.Spec, &out.Spec, s); err != nil {
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return err
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}
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if err := Convert_v1_ReplicationControllerStatus_to_extensions_ReplicaSetStatus(&in.Status, &out.Status, s); err != nil {
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return err
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}
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return nil
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}
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func Convert_v1_ReplicationControllerSpec_to_extensions_ReplicaSetSpec(in *v1.ReplicationControllerSpec, out *extensions.ReplicaSetSpec, s conversion.Scope) error {
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out.Replicas = *in.Replicas
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if in.Selector != nil {
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metav1.Convert_map_to_unversioned_LabelSelector(&in.Selector, out.Selector, s)
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}
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if in.Template != nil {
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if err := Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in.Template, &out.Template, s); err != nil {
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return err
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}
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}
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return nil
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}
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func Convert_v1_ReplicationControllerStatus_to_extensions_ReplicaSetStatus(in *v1.ReplicationControllerStatus, out *extensions.ReplicaSetStatus, s conversion.Scope) error {
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out.Replicas = in.Replicas
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out.FullyLabeledReplicas = in.FullyLabeledReplicas
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out.ReadyReplicas = in.ReadyReplicas
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out.AvailableReplicas = in.AvailableReplicas
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out.ObservedGeneration = in.ObservedGeneration
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return nil
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}
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func Convert_extensions_ReplicaSet_to_v1_ReplicationController(in *extensions.ReplicaSet, out *v1.ReplicationController, s conversion.Scope) error {
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out.ObjectMeta = in.ObjectMeta
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if err := Convert_extensions_ReplicaSetSpec_to_v1_ReplicationControllerSpec(&in.Spec, &out.Spec, s); err != nil {
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fieldErr, ok := err.(*field.Error)
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if !ok {
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return err
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}
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if out.Annotations == nil {
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out.Annotations = make(map[string]string)
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}
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out.Annotations[v1.NonConvertibleAnnotationPrefix+"/"+fieldErr.Field] = reflect.ValueOf(fieldErr.BadValue).String()
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}
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if err := Convert_extensions_ReplicaSetStatus_to_v1_ReplicationControllerStatus(&in.Status, &out.Status, s); err != nil {
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return err
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}
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return nil
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}
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func Convert_extensions_ReplicaSetSpec_to_v1_ReplicationControllerSpec(in *extensions.ReplicaSetSpec, out *v1.ReplicationControllerSpec, s conversion.Scope) error {
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out.Replicas = new(int32)
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*out.Replicas = in.Replicas
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out.MinReadySeconds = in.MinReadySeconds
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var invalidErr error
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if in.Selector != nil {
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invalidErr = metav1.Convert_unversioned_LabelSelector_to_map(in.Selector, &out.Selector, s)
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}
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out.Template = new(v1.PodTemplateSpec)
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if err := Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(&in.Template, out.Template, s); err != nil {
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return err
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}
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return invalidErr
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}
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func Convert_extensions_ReplicaSetStatus_to_v1_ReplicationControllerStatus(in *extensions.ReplicaSetStatus, out *v1.ReplicationControllerStatus, s conversion.Scope) error {
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out.Replicas = in.Replicas
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out.FullyLabeledReplicas = in.FullyLabeledReplicas
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out.ReadyReplicas = in.ReadyReplicas
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out.AvailableReplicas = in.AvailableReplicas
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out.ObservedGeneration = in.ObservedGeneration
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return nil
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}
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func Convert_api_ReplicationControllerSpec_To_v1_ReplicationControllerSpec(in *api.ReplicationControllerSpec, out *v1.ReplicationControllerSpec, s conversion.Scope) error {
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out.Replicas = &in.Replicas
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out.MinReadySeconds = in.MinReadySeconds
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out.Selector = in.Selector
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if in.Template != nil {
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out.Template = new(v1.PodTemplateSpec)
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if err := Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(in.Template, out.Template, s); err != nil {
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return err
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}
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} else {
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out.Template = nil
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}
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return nil
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}
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func Convert_v1_ReplicationControllerSpec_To_api_ReplicationControllerSpec(in *v1.ReplicationControllerSpec, out *api.ReplicationControllerSpec, s conversion.Scope) error {
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if in.Replicas != nil {
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out.Replicas = *in.Replicas
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}
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out.MinReadySeconds = in.MinReadySeconds
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out.Selector = in.Selector
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if in.Template != nil {
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out.Template = new(api.PodTemplateSpec)
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if err := Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in.Template, out.Template, s); err != nil {
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return err
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}
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} else {
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out.Template = nil
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}
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return nil
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}
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func Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(in *api.PodTemplateSpec, out *v1.PodTemplateSpec, s conversion.Scope) error {
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if err := autoConvert_api_PodTemplateSpec_To_v1_PodTemplateSpec(in, out, s); err != nil {
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return err
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}
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return nil
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}
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func Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in *v1.PodTemplateSpec, out *api.PodTemplateSpec, s conversion.Scope) error {
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if err := autoConvert_v1_PodTemplateSpec_To_api_PodTemplateSpec(in, out, s); err != nil {
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return err
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}
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return nil
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}
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// The following two v1.PodSpec conversions are done here to support v1.ServiceAccount
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// as an alias for ServiceAccountName.
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func Convert_api_PodSpec_To_v1_PodSpec(in *api.PodSpec, out *v1.PodSpec, s conversion.Scope) error {
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if err := autoConvert_api_PodSpec_To_v1_PodSpec(in, out, s); err != nil {
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return err
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}
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// DeprecatedServiceAccount is an alias for ServiceAccountName.
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out.DeprecatedServiceAccount = in.ServiceAccountName
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if in.SecurityContext != nil {
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// the host namespace fields have to be handled here for backward compatibility
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// with v1.0.0
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out.HostPID = in.SecurityContext.HostPID
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out.HostNetwork = in.SecurityContext.HostNetwork
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out.HostIPC = in.SecurityContext.HostIPC
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}
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return nil
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}
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func Convert_v1_PodSpec_To_api_PodSpec(in *v1.PodSpec, out *api.PodSpec, s conversion.Scope) error {
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if err := autoConvert_v1_PodSpec_To_api_PodSpec(in, out, s); err != nil {
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return err
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}
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// We support DeprecatedServiceAccount as an alias for ServiceAccountName.
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// If both are specified, ServiceAccountName (the new field) wins.
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if in.ServiceAccountName == "" {
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out.ServiceAccountName = in.DeprecatedServiceAccount
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}
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// the host namespace fields have to be handled specially for backward compatibility
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// with v1.0.0
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if out.SecurityContext == nil {
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out.SecurityContext = new(api.PodSecurityContext)
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}
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out.SecurityContext.HostNetwork = in.HostNetwork
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out.SecurityContext.HostPID = in.HostPID
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out.SecurityContext.HostIPC = in.HostIPC
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return nil
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}
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func Convert_api_Pod_To_v1_Pod(in *api.Pod, out *v1.Pod, s conversion.Scope) error {
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if err := autoConvert_api_Pod_To_v1_Pod(in, out, s); err != nil {
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return err
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}
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// drop init container annotations so they don't take effect on legacy kubelets.
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// remove this once the oldest supported kubelet no longer honors the annotations over the field.
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if len(out.Annotations) > 0 {
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old := out.Annotations
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out.Annotations = make(map[string]string, len(old))
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for k, v := range old {
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out.Annotations[k] = v
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}
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delete(out.Annotations, "pod.beta.kubernetes.io/init-containers")
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delete(out.Annotations, "pod.alpha.kubernetes.io/init-containers")
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delete(out.Annotations, "pod.beta.kubernetes.io/init-container-statuses")
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delete(out.Annotations, "pod.alpha.kubernetes.io/init-container-statuses")
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}
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return nil
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}
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func Convert_v1_Secret_To_api_Secret(in *v1.Secret, out *api.Secret, s conversion.Scope) error {
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if err := autoConvert_v1_Secret_To_api_Secret(in, out, s); err != nil {
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return err
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}
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// StringData overwrites Data
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if len(in.StringData) > 0 {
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if out.Data == nil {
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out.Data = map[string][]byte{}
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}
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for k, v := range in.StringData {
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out.Data[k] = []byte(v)
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}
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}
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return nil
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}
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func Convert_api_SecurityContext_To_v1_SecurityContext(in *api.SecurityContext, out *v1.SecurityContext, s conversion.Scope) error {
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if in.Capabilities != nil {
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out.Capabilities = new(v1.Capabilities)
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if err := Convert_api_Capabilities_To_v1_Capabilities(in.Capabilities, out.Capabilities, s); err != nil {
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return err
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}
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} else {
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out.Capabilities = nil
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}
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out.Privileged = in.Privileged
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if in.SELinuxOptions != nil {
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out.SELinuxOptions = new(v1.SELinuxOptions)
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if err := Convert_api_SELinuxOptions_To_v1_SELinuxOptions(in.SELinuxOptions, out.SELinuxOptions, s); err != nil {
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return err
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}
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} else {
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out.SELinuxOptions = nil
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}
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out.RunAsUser = in.RunAsUser
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out.RunAsNonRoot = in.RunAsNonRoot
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out.ReadOnlyRootFilesystem = in.ReadOnlyRootFilesystem
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out.AllowPrivilegeEscalation = in.AllowPrivilegeEscalation
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return nil
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}
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func Convert_api_PodSecurityContext_To_v1_PodSecurityContext(in *api.PodSecurityContext, out *v1.PodSecurityContext, s conversion.Scope) error {
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out.SupplementalGroups = in.SupplementalGroups
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if in.SELinuxOptions != nil {
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out.SELinuxOptions = new(v1.SELinuxOptions)
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if err := Convert_api_SELinuxOptions_To_v1_SELinuxOptions(in.SELinuxOptions, out.SELinuxOptions, s); err != nil {
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return err
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}
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} else {
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out.SELinuxOptions = nil
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}
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out.RunAsUser = in.RunAsUser
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out.RunAsNonRoot = in.RunAsNonRoot
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out.FSGroup = in.FSGroup
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return nil
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}
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func Convert_v1_PodSecurityContext_To_api_PodSecurityContext(in *v1.PodSecurityContext, out *api.PodSecurityContext, s conversion.Scope) error {
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out.SupplementalGroups = in.SupplementalGroups
|
|
if in.SELinuxOptions != nil {
|
|
out.SELinuxOptions = new(api.SELinuxOptions)
|
|
if err := Convert_v1_SELinuxOptions_To_api_SELinuxOptions(in.SELinuxOptions, out.SELinuxOptions, s); err != nil {
|
|
return err
|
|
}
|
|
} else {
|
|
out.SELinuxOptions = nil
|
|
}
|
|
out.RunAsUser = in.RunAsUser
|
|
out.RunAsNonRoot = in.RunAsNonRoot
|
|
out.FSGroup = in.FSGroup
|
|
return nil
|
|
}
|
|
|
|
// +k8s:conversion-fn=copy-only
|
|
func Convert_v1_ResourceList_To_api_ResourceList(in *v1.ResourceList, out *api.ResourceList, s conversion.Scope) error {
|
|
if *in == nil {
|
|
return nil
|
|
}
|
|
if *out == nil {
|
|
*out = make(api.ResourceList, len(*in))
|
|
}
|
|
for key, val := range *in {
|
|
// Moved to defaults
|
|
// TODO(#18538): We round up resource values to milli scale to maintain API compatibility.
|
|
// In the future, we should instead reject values that need rounding.
|
|
// const milliScale = -3
|
|
// val.RoundUp(milliScale)
|
|
|
|
(*out)[api.ResourceName(key)] = val
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func AddFieldLabelConversionsForEvent(scheme *runtime.Scheme) error {
|
|
return scheme.AddFieldLabelConversionFunc("v1", "Event",
|
|
func(label, value string) (string, string, error) {
|
|
switch label {
|
|
case "involvedObject.kind",
|
|
"involvedObject.namespace",
|
|
"involvedObject.name",
|
|
"involvedObject.uid",
|
|
"involvedObject.apiVersion",
|
|
"involvedObject.resourceVersion",
|
|
"involvedObject.fieldPath",
|
|
"reason",
|
|
"source",
|
|
"type",
|
|
"metadata.namespace",
|
|
"metadata.name":
|
|
return label, value, nil
|
|
default:
|
|
return "", "", fmt.Errorf("field label not supported: %s", label)
|
|
}
|
|
})
|
|
}
|
|
|
|
func AddFieldLabelConversionsForNamespace(scheme *runtime.Scheme) error {
|
|
return scheme.AddFieldLabelConversionFunc("v1", "Namespace",
|
|
func(label, value string) (string, string, error) {
|
|
switch label {
|
|
case "status.phase",
|
|
"metadata.name":
|
|
return label, value, nil
|
|
default:
|
|
return "", "", fmt.Errorf("field label not supported: %s", label)
|
|
}
|
|
})
|
|
}
|
|
|
|
func AddFieldLabelConversionsForSecret(scheme *runtime.Scheme) error {
|
|
return scheme.AddFieldLabelConversionFunc("v1", "Secret",
|
|
func(label, value string) (string, string, error) {
|
|
switch label {
|
|
case "type",
|
|
"metadata.namespace",
|
|
"metadata.name":
|
|
return label, value, nil
|
|
default:
|
|
return "", "", fmt.Errorf("field label not supported: %s", label)
|
|
}
|
|
})
|
|
}
|