kubernetes types 源码

kubernetes types 代码

文件路径：/pkg/apis/apiserverinternal/types.go

/*
Copyright 2019 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.
*/

package apiserverinternal

import (
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
)

// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// StorageVersion of a specific resource.
type StorageVersion struct {
	metav1.TypeMeta
	// The name is <group>.<resource>.
	metav1.ObjectMeta

	// Spec is an empty spec. It is here to comply with Kubernetes API style.
	Spec StorageVersionSpec

	// API server instances report the version they can decode and the version they
	// encode objects to when persisting objects in the backend.
	Status StorageVersionStatus
}

// StorageVersionSpec is an empty spec.
type StorageVersionSpec struct{}

// StorageVersionStatus API server instances report the versions they can decode and the version they
// encode objects to when persisting objects in the backend.
type StorageVersionStatus struct {
	// The reported versions per API server instance.
	// +optional
	StorageVersions []ServerStorageVersion
	// If all API server instances agree on the same encoding storage version,
	// then this field is set to that version. Otherwise this field is left empty.
	// API servers should finish updating its storageVersionStatus entry before
	// serving write operations, so that this field will be in sync with the reality.
	// +optional
	CommonEncodingVersion *string

	// The latest available observations of the storageVersion's state.
	// +optional
	Conditions []StorageVersionCondition
}

// ServerStorageVersion An API server instance reports the version it can decode and the version it
// encodes objects to when persisting objects in the backend.
type ServerStorageVersion struct {
	// The ID of the reporting API server.
	APIServerID string

	// The API server encodes the object to this version when persisting it in
	// the backend (e.g., etcd).
	EncodingVersion string

	// The API server can decode objects encoded in these versions.
	// The encodingVersion must be included in the decodableVersions.
	DecodableVersions []string
}

// StorageVersionConditionType Indicates the storage version condition type
type StorageVersionConditionType string

const (
	//AllEncodingVersionsEqual Indicates that encoding storage versions reported by all servers are equal.
	AllEncodingVersionsEqual StorageVersionConditionType = "AllEncodingVersionsEqual"
)

// ConditionStatus indicates status of condition from "True", "False", or "Unknown"
type ConditionStatus string

const (
	// ConditionTrue indicates condition as "True"
	ConditionTrue ConditionStatus = "True"
	// ConditionFalse indicates condition as "False"
	ConditionFalse ConditionStatus = "False"
	// ConditionUnknown indicates condition as "Unknown"
	ConditionUnknown ConditionStatus = "Unknown"
)

// StorageVersionCondition Describes the state of the storageVersion at a certain point.
type StorageVersionCondition struct {
	// Type of the condition.
	// +optional
	Type StorageVersionConditionType
	// Status of the condition, one of True, False, Unknown.
	// +required
	Status ConditionStatus
	// If set, this represents the .metadata.generation that the condition was set based upon.
	// +optional
	ObservedGeneration int64
	// Last time the condition transitioned from one status to another.
	// +required
	LastTransitionTime metav1.Time
	// The reason for the condition's last transition.
	// +required
	Reason string
	// A human readable message indicating details about the transition.
	// +required
	Message string
}

// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object

// StorageVersionList A list of StorageVersions.
type StorageVersionList struct {
	metav1.TypeMeta
	// +optional
	metav1.ListMeta
	Items []StorageVersion
}

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