v1alpha1

type AccessMode string

type AccountName string

type Affinity struct {
	// podAntiAffinity describes the anti-affinity level of pods within a component.
	// Preferred means try spread pods by `TopologyKeys`.
	// Required means must spread pods by `TopologyKeys`.
	// +kubebuilder:default=Preferred
	// +optional
	PodAntiAffinity PodAntiAffinity `json:"podAntiAffinity,omitempty"`

	// topologyKey is the key of node labels.
	// Nodes that have a label with this key and identical values are considered to be in the same topology.
	// It's used as the topology domain for pod anti-affinity and pod spread constraint.
	// Some well-known label keys, such as "kubernetes.io/hostname" and "topology.kubernetes.io/zone"
	// are often used as TopologyKey, as well as any other custom label key.
	// +listType=set
	// +optional
	TopologyKeys []string `json:"topologyKeys,omitempty"`

	// nodeLabels describes that pods must be scheduled to the nodes with the specified node labels.
	// +optional
	NodeLabels map[string]string `json:"nodeLabels,omitempty"`

	// tenancy describes how pods are distributed across node.
	// SharedNode means multiple pods may share the same node.
	// DedicatedNode means each pod runs on their own dedicated node.
	// +kubebuilder:default=SharedNode
	// +optional
	Tenancy TenancyType `json:"tenancy,omitempty"`
}

type BackupPolicy struct {
	// componentDefRef references componentDef defined in ClusterDefinition spec.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ComponentDefRef string `json:"componentDefRef"`

	// retention describe how long the Backup should be retained. if not set, will be retained forever.
	// +optional
	Retention *RetentionSpec `json:"retention,omitempty"`

	// schedule policy for backup.
	// +optional
	Schedule Schedule `json:"schedule,omitempty"`

	// the policy for snapshot backup.
	// +optional
	Snapshot *SnapshotPolicy `json:"snapshot,omitempty"`

	// the policy for datafile backup.
	// +optional
	Datafile *CommonBackupPolicy `json:"datafile,omitempty"`

	// the policy for logfile backup.
	// +optional
	Logfile *CommonBackupPolicy `json:"logfile,omitempty"`
}

type BackupPolicyHook struct {
	// pre backup to perform commands
	// +optional
	PreCommands []string `json:"preCommands,omitempty"`

	// post backup to perform commands
	// +optional
	PostCommands []string `json:"postCommands,omitempty"`

	// exec command with image
	// +optional
	Image string `json:"image,omitempty"`

	// which container can exec command
	// +optional
	ContainerName string `json:"containerName,omitempty"`
}

type BackupPolicyTemplate struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   BackupPolicyTemplateSpec   `json:"spec,omitempty"`
	Status BackupPolicyTemplateStatus `json:"status,omitempty"`
}

type BackupPolicyTemplateList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []BackupPolicyTemplate `json:"items"`
}

type BackupPolicyTemplateSpec struct {
	// clusterDefinitionRef references ClusterDefinition name, this is an immutable attribute.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ClusterDefRef string `json:"clusterDefinitionRef"`

	// backupPolicies is a list of backup policy template for the specified componentDefinition.
	// +patchMergeKey=componentDefRef
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentDefRef
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	BackupPolicies []BackupPolicy `json:"backupPolicies"`

	// Identifier is a unique identifier for this BackupPolicyTemplate.
	// this identifier will be the suffix of the automatically generated backupPolicy name.
	// and must be added when multiple BackupPolicyTemplates exist,
	// otherwise the generated backupPolicy override will occur.
	// +optional
	// +kubebuilder:validation:MaxLength=20
	Identifier string `json:"identifier,omitempty"`
}

type BackupPolicyTemplateStatus struct {
}

type BackupRefSpec struct {
	// specify a reference backup to restore
	// +optional
	Ref RefNamespaceName `json:"ref,omitempty"`
}

type BackupStatusUpdate struct {
	// specify the json path of backup object for patch.
	// example: manifests.backupLog -- means patch the backup json path of status.manifests.backupLog.
	// +optional
	Path string `json:"path,omitempty"`

	// which container name that kubectl can execute.
	// +optional
	ContainerName string `json:"containerName,omitempty"`

	// the shell Script commands to collect backup status metadata.
	// The script must exist in the container of ContainerName and the output format must be set to JSON.
	// Note that outputting to stderr may cause the result format to not be in JSON.
	// +optional
	Script string `json:"script,omitempty"`

	// when to update the backup status, pre: before backup, post: after backup
	// +optional
	UpdateStage BackupStatusUpdateStage `json:"updateStage,omitempty"`
}

type BackupStatusUpdateStage string

type BaseBackupType string

type BasePolicy struct {
	// target instance for backup.
	// +optional
	Target TargetInstance `json:"target"`

	// the number of automatic backups to retain. Value must be non-negative integer.
	// 0 means NO limit on the number of backups.
	// +kubebuilder:default=7
	// +optional
	BackupsHistoryLimit int32 `json:"backupsHistoryLimit,omitempty"`

	// count of backup stop retries on fail.
	// +optional
	OnFailAttempted int32 `json:"onFailAttempted,omitempty"`

	// define how to update metadata for backup status.
	// +optional
	BackupStatusUpdates []BackupStatusUpdate `json:"backupStatusUpdates,omitempty"`
}

type CPUConstraint struct {
	// The maximum count of vcpu cores, [Min, Max] defines a range for valid vcpu cores, and the value in this range
	// must be multiple times of Step. It's useful to define a large number of valid values without defining them one by
	// one. Please see the documentation for Step for some examples.
	// If Slots is specified, Max, Min, and Step are ignored
	// +optional
	Max *resource.Quantity `json:"max,omitempty"`

	// The minimum count of vcpu cores, [Min, Max] defines a range for valid vcpu cores, and the value in this range
	// must be multiple times of Step. It's useful to define a large number of valid values without defining them one by
	// one. Please see the documentation for Step for some examples.
	// If Slots is specified, Max, Min, and Step are ignored
	// +optional
	Min *resource.Quantity `json:"min,omitempty"`

	// The minimum granularity of vcpu cores, [Min, Max] defines a range for valid vcpu cores and the value in this range must be
	// multiple times of Step.
	// For example:
	// 1. Min is 2, Max is 8, Step is 2, and the valid vcpu core is {2, 4, 6, 8}.
	// 2. Min is 0.5, Max is 2, Step is 0.5, and the valid vcpu core is {0.5, 1, 1.5, 2}.
	// +optional
	Step *resource.Quantity `json:"step,omitempty"`

	// The valid vcpu cores, it's useful if you want to define valid vcpu cores explicitly.
	// If Slots is specified, Max, Min, and Step are ignored
	// +optional
	Slots []resource.Quantity `json:"slots,omitempty"`
}

type CfgFileFormat string

type CfgReloadType string

type ClassDefRef struct {
	// Name refers to the name of the ComponentClassDefinition.
	// +optional
	Name string `json:"name,omitempty"`

	// Class refers to the name of the class that is defined in the ComponentClassDefinition.
	// +kubebuilder:validation:Required
	Class string `json:"class"`
}

type Cluster struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   ClusterSpec   `json:"spec,omitempty"`
	Status ClusterStatus `json:"status,omitempty"`
}

type ClusterComponentDefinition struct {
	// name of the component, it can be any valid string.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=18
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// The description of component definition.
	// +optional
	Description string `json:"description,omitempty"`

	// workloadType defines type of the workload.
	// Stateless is a stateless workload type used to describe stateless applications.
	// Stateful is a stateful workload type used to describe common stateful applications.
	// Consensus is a stateful workload type used to describe applications based on consensus protocols, common consensus protocols such as raft and paxos.
	// Replication is a stateful workload type used to describe applications based on the primary-secondary data replication protocol.
	// +kubebuilder:validation:Required
	WorkloadType WorkloadType `json:"workloadType"`

	// characterType defines well-known database component name, such as mongos(mongodb), proxy(redis), mariadb(mysql)
	// KubeBlocks will generate proper monitor configs for well-known characterType when builtIn is true.
	// +optional
	CharacterType string `json:"characterType,omitempty"`

	// The maximum number of pods that can be unavailable during scaling.
	// Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%).
	// Absolute number is calculated from percentage by rounding down. This value is ignored
	// if workloadType is Consensus.
	// +kubebuilder:validation:XIntOrString
	// +optional
	MaxUnavailable *intstr.IntOrString `json:"maxUnavailable,omitempty"`

	// The configSpec field provided by provider, and
	// finally this configTemplateRefs will be rendered into the user's own configuration file according to the user's cluster.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	ConfigSpecs []ComponentConfigSpec `json:"configSpecs,omitempty"`

	// The scriptSpec field provided by provider, and
	// finally this configTemplateRefs will be rendered into the user's own configuration file according to the user's cluster.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	// +optional
	ScriptSpecs []ComponentTemplateSpec `json:"scriptSpecs,omitempty"`

	// probes setting for healthy checks.
	// +optional
	Probes *ClusterDefinitionProbes `json:"probes,omitempty"`

	// monitor is monitoring config which provided by provider.
	// +optional
	Monitor *MonitorConfig `json:"monitor,omitempty"`

	// logConfigs is detail log file config which provided by provider.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	LogConfigs []LogConfig `json:"logConfigs,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`

	// podSpec define pod spec template of the cluster component.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	PodSpec *corev1.PodSpec `json:"podSpec,omitempty"`

	// service defines the behavior of a service spec.
	// provide read-write service when WorkloadType is Consensus.
	// +optional
	Service *ServiceSpec `json:"service,omitempty"`

	// consensusSpec defines consensus related spec if workloadType is Consensus, required if workloadType is Consensus.
	// +optional
	ConsensusSpec *ConsensusSetSpec `json:"consensusSpec,omitempty"`

	// replicationSpec defines replication related spec if workloadType is Replication, required if workloadType is Replication.
	// +optional
	ReplicationSpec *ReplicationSpec `json:"replicationSpec,omitempty"`

	// horizontalScalePolicy controls the behavior of horizontal scale.
	// +optional
	HorizontalScalePolicy *HorizontalScalePolicy `json:"horizontalScalePolicy,omitempty"`

	// Statement to create system account.
	// +optional
	SystemAccounts *SystemAccountSpec `json:"systemAccounts,omitempty"`

	// volumeTypes is used to describe the purpose of the volumes
	// mapping the name of the VolumeMounts in the PodSpec.Container field,
	// such as data volume, log volume, etc.
	// When backing up the volume, the volume can be correctly backed up
	// according to the volumeType.
	//
	// For example:
	//  `name: data, type: data` means that the volume named `data` is used to store `data`.
	//  `name: binlog, type: log` means that the volume named `binlog` is used to store `log`.
	//
	// NOTE:
	//   When volumeTypes is not defined, the backup function will not be supported,
	// even if a persistent volume has been specified.
	// +listType=map
	// +listMapKey=name
	// +optional
	VolumeTypes []VolumeTypeSpec `json:"volumeTypes,omitempty"`

	// customLabelSpecs is used for custom label tags which you want to add to the component resources.
	// +listType=map
	// +listMapKey=key
	// +optional
	CustomLabelSpecs []CustomLabelSpec `json:"customLabelSpecs,omitempty"`
}

type ClusterComponentPhase string

type ClusterComponentService struct {
	// Service name
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=15
	Name string `json:"name"`

	// serviceType determines how the Service is exposed. Valid
	// options are ClusterIP, NodePort, and LoadBalancer.
	// "ClusterIP" allocates a cluster-internal IP address for load-balancing
	// to endpoints. Endpoints are determined by the selector or if that is not
	// specified, they are determined by manual construction of an Endpoints object or
	// EndpointSlice objects. If clusterIP is "None", no virtual IP is
	// allocated and the endpoints are published as a set of endpoints rather
	// than a virtual IP.
	// "NodePort" builds on ClusterIP and allocates a port on every node which
	// routes to the same endpoints as the clusterIP.
	// "LoadBalancer" builds on NodePort and creates an external load-balancer
	// (if supported in the current cloud) which routes to the same endpoints
	// as the clusterIP.
	// More info: https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types.
	// +kubebuilder:default=ClusterIP
	// +kubebuilder:validation:Enum={ClusterIP,NodePort,LoadBalancer}
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	ServiceType corev1.ServiceType `json:"serviceType,omitempty"`

	// If ServiceType is LoadBalancer, cloud provider related parameters can be put here
	// More info: https://kubernetes.io/docs/concepts/services-networking/service/#loadbalancer.
	// +optional
	Annotations map[string]string `json:"annotations,omitempty"`
}

type ClusterComponentSpec struct {
	// name defines cluster's component name.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=15
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// componentDefRef references the componentDef defined in ClusterDefinition spec.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ComponentDefRef string `json:"componentDefRef"`

	// classDefRef references the class defined in ComponentClassDefinition.
	// +optional
	ClassDefRef *ClassDefRef `json:"classDefRef,omitempty"`

	// monitor is a switch to enable monitoring and is set as false by default.
	// KubeBlocks provides an extension mechanism to support component level monitoring,
	// which will scrape metrics auto or manually from servers in component and export
	// metrics to Time Series Database.
	// +kubebuilder:default=false
	// +optional
	Monitor bool `json:"monitor,omitempty"`

	// enabledLogs indicates which log file takes effect in the database cluster.
	// element is the log type which is defined in cluster definition logConfig.name,
	// and will set relative variables about this log type in database kernel.
	// +listType=set
	// +optional
	EnabledLogs []string `json:"enabledLogs,omitempty"`

	// Component replicas. The default value is used in ClusterDefinition spec if not specified.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Minimum=0
	// +kubebuilder:default=1
	Replicas int32 `json:"replicas"`

	// affinity describes affinities specified by users.
	// +optional
	Affinity *Affinity `json:"affinity,omitempty"`

	// Component tolerations will override ClusterSpec.Tolerations if specified.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	Tolerations []corev1.Toleration `json:"tolerations,omitempty"`

	// Resources requests and limits of workload.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	Resources corev1.ResourceRequirements `json:"resources,omitempty"`

	// volumeClaimTemplates information for statefulset.spec.volumeClaimTemplates.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	VolumeClaimTemplates []ClusterComponentVolumeClaimTemplate `json:"volumeClaimTemplates,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`

	// Services expose endpoints that can be accessed by clients.
	// +optional
	Services []ClusterComponentService `json:"services,omitempty"`

	// primaryIndex determines which index is primary when workloadType is Replication. Index number starts from zero.
	// +kubebuilder:validation:Minimum=0
	// +optional
	PrimaryIndex *int32 `json:"primaryIndex,omitempty"`

	// switchPolicy defines the strategy for switchover and failover when workloadType is Replication.
	// +optional
	SwitchPolicy *ClusterSwitchPolicy `json:"switchPolicy,omitempty"`

	// Enables or disables TLS certs.
	// +optional
	TLS bool `json:"tls,omitempty"`

	// issuer defines provider context for TLS certs.
	// required when TLS enabled
	// +optional
	Issuer *Issuer `json:"issuer,omitempty"`

	// serviceAccountName is the name of the ServiceAccount that running component depends on.
	// +optional
	ServiceAccountName string `json:"serviceAccountName,omitempty"`
}

type ClusterComponentStatus struct {
	// phase describes the phase of the component and the detail information of the phases are as following:
	// Running: the component is running. [terminal state]
	// Stopped: the component is stopped, as no running pod. [terminal state]
	// Failed: the component is unavailable, i.e. all pods are not ready for Stateless/Stateful component and
	// Leader/Primary pod is not ready for Consensus/Replication component. [terminal state]
	// Abnormal: the component is running but part of its pods are not ready.
	// Leader/Primary pod is ready for Consensus/Replication component. [terminal state]
	// Creating: the component has entered creating process.
	// Updating: the component has entered updating process, triggered by Spec. updated.
	Phase ClusterComponentPhase `json:"phase,omitempty"`

	// message records the component details message in current phase.
	// Keys are podName or deployName or statefulSetName. The format is `ObjectKind/Name`.
	// +optional
	Message ComponentMessageMap `json:"message,omitempty"`

	// podsReady checks if all pods of the component are ready.
	// +optional
	PodsReady *bool `json:"podsReady,omitempty"`

	// podsReadyTime what time point of all component pods are ready,
	// this time is the ready time of the last component pod.
	// +optional
	PodsReadyTime *metav1.Time `json:"podsReadyTime,omitempty"`

	// consensusSetStatus specifies the mapping of role and pod name.
	// +optional
	ConsensusSetStatus *ConsensusSetStatus `json:"consensusSetStatus,omitempty"`

	// replicationSetStatus specifies the mapping of role and pod name.
	// +optional
	ReplicationSetStatus *ReplicationSetStatus `json:"replicationSetStatus,omitempty"`
}

type ClusterComponentVersion struct {
	// componentDefRef reference one of the cluster component definition names in ClusterDefinition API (spec.componentDefs.name).
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ComponentDefRef string `json:"componentDefRef"`

	// configSpecs defines a configuration extension mechanism to handle configuration differences between versions,
	// the configTemplateRefs field, together with configTemplateRefs in the ClusterDefinition,
	// determines the final configuration file.
	// +optional
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	ConfigSpecs []ComponentConfigSpec `json:"configSpecs,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`

	// clientImage define image for the component to connect database or engines.
	// This value override ClusterDefinition.spec.componentDefs.systemAccountSpec.cmdExecutorConfig.image. [EXPERIMENTAL]
	// +optional
	ClientImage string `json:"clientImage,omitempty"`

	// versionContext defines containers images' context for component versions,
	// this value replaces ClusterDefinition.spec.componentDefs.podSpec.[initContainers | containers]
	VersionsCtx VersionsContext `json:"versionsContext"`
}

type ClusterComponentVolumeClaimTemplate struct {
	// Reference `ClusterDefinition.spec.componentDefs.containers.volumeMounts.name`.
	// +kubebuilder:validation:Required
	Name string `json:"name"`
	// spec defines the desired characteristics of a volume requested by a pod author.
	// +optional
	Spec PersistentVolumeClaimSpec `json:"spec,omitempty"`
}

type ClusterDefinition struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   ClusterDefinitionSpec   `json:"spec,omitempty"`
	Status ClusterDefinitionStatus `json:"status,omitempty"`
}

type ClusterDefinitionList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []ClusterDefinition `json:"items"`
}

type ClusterDefinitionProbe struct {
	// How often (in seconds) to perform the probe.
	// +kubebuilder:default=1
	// +kubebuilder:validation:Minimum=1
	PeriodSeconds int32 `json:"periodSeconds,omitempty"`

	// Number of seconds after which the probe times out. Defaults to 1 second.
	// +kubebuilder:default=1
	// +kubebuilder:validation:Minimum=1
	TimeoutSeconds int32 `json:"timeoutSeconds,omitempty"`

	// Minimum consecutive failures for the probe to be considered failed after having succeeded.
	// +kubebuilder:default=3
	// +kubebuilder:validation:Minimum=2
	FailureThreshold int32 `json:"failureThreshold,omitempty"`

	// commands used to execute for probe.
	// +optional
	Commands *ClusterDefinitionProbeCMDs `json:"commands,omitempty"`
}

type ClusterDefinitionProbeCMDs struct {
	// Write check executed on probe sidecar, used to check workload's allow write access.
	// +optional
	Writes []string `json:"writes,omitempty"`

	// Read check executed on probe sidecar, used to check workload's readonly access.
	// +optional
	Queries []string `json:"queries,omitempty"`
}

type ClusterDefinitionProbes struct {
	// Probe for DB running check.
	// +optional
	RunningProbe *ClusterDefinitionProbe `json:"runningProbe,omitempty"`

	// Probe for DB status check.
	// +optional
	StatusProbe *ClusterDefinitionProbe `json:"statusProbe,omitempty"`

	// Probe for DB role changed check.
	// +optional
	RoleProbe *ClusterDefinitionProbe `json:"roleProbe,omitempty"`

	// roleProbeTimeoutAfterPodsReady(in seconds), when all pods of the component are ready,
	// it will detect whether the application is available in the pod.
	// if pods exceed the InitializationTimeoutSeconds time without a role label,
	// this component will enter the Failed/Abnormal phase.
	// Note that this configuration will only take effect if the component supports RoleProbe
	// and will not affect the life cycle of the pod. default values are 60 seconds.
	// +optional
	// +kubebuilder:validation:Minimum=30
	RoleProbeTimeoutAfterPodsReady int32 `json:"roleProbeTimeoutAfterPodsReady,omitempty"`
}

type ClusterDefinitionSpec struct {

	// Cluster definition type defines well known application cluster type, e.g. mysql/redis/mongodb
	// +kubebuilder:validation:MaxLength=24
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\-]*[a-z0-9])?$`
	// +optional
	Type string `json:"type,omitempty"`

	// componentDefs provides cluster components definitions.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	ComponentDefs []ClusterComponentDefinition `json:"componentDefs" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`

	// Connection credential template used for creating a connection credential
	// secret for cluster.apps.kubeblocks.io object. Built-in objects are:
	// `$(RANDOM_PASSWD)` - random 8 characters.
	// `$(UUID)` - generate a random UUID v4 string.
	// `$(UUID_B64)` - generate a random UUID v4 BASE64 encoded string.
	// `$(UUID_STR_B64)` - generate a random UUID v4 string then BASE64 encoded.
	// `$(UUID_HEX)` - generate a random UUID v4 HEX representation.
	// `$(HEADLESS_SVC_FQDN)` - headless service FQDN placeholder, value pattern - $(CLUSTER_NAME)-$(1ST_COMP_NAME)-headless.$(NAMESPACE).svc,
	//    where 1ST_COMP_NAME is the 1st component that provide `ClusterDefinition.spec.componentDefs[].service` attribute;
	// `$(SVC_FQDN)` - service FQDN  placeholder, value pattern - $(CLUSTER_NAME)-$(1ST_COMP_NAME).$(NAMESPACE).svc,
	//    where 1ST_COMP_NAME is the 1st component that provide `ClusterDefinition.spec.componentDefs[].service` attribute;
	// `$(SVC_PORT_{PORT-NAME})` - a ServicePort's port value with specified port name, i.e, a servicePort JSON struct:
	//    `"name": "mysql", "targetPort": "mysqlContainerPort", "port": 3306`, and "$(SVC_PORT_mysql)" in the
	//    connection credential value is 3306.
	// +optional
	ConnectionCredential map[string]string `json:"connectionCredential,omitempty"`
}

type ClusterDefinitionStatus struct {
	// ClusterDefinition phase, valid values are `empty`, `Available`, 'Unavailable`.
	// Available is ClusterDefinition become available, and can be referenced for co-related objects.
	Phase Phase `json:"phase,omitempty"`

	// Extra message in current phase
	// +optional
	Message string `json:"message,omitempty"`

	// observedGeneration is the most recent generation observed for this
	// ClusterDefinition. It corresponds to the ClusterDefinition's generation, which is
	// updated on mutation by the API Server.
	// +optional
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
}

type ClusterList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []Cluster `json:"items"`
}

type ClusterPhase string

type ClusterSpec struct {
	// Cluster referencing ClusterDefinition name. This is an immutable attribute.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ClusterDefRef string `json:"clusterDefinitionRef"`

	// Cluster referencing ClusterVersion name.
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	// +optional
	ClusterVersionRef string `json:"clusterVersionRef,omitempty"`

	// Cluster termination policy. Valid values are DoNotTerminate, Halt, Delete, WipeOut.
	// DoNotTerminate will block delete operation.
	// Halt will delete workload resources such as statefulset, deployment workloads but keep PVCs.
	// Delete is based on Halt and deletes PVCs.
	// WipeOut is based on Delete and wipe out all volume snapshots and snapshot data from backup storage location.
	// +kubebuilder:validation:Required
	TerminationPolicy TerminationPolicyType `json:"terminationPolicy"`

	// List of componentSpecs you want to replace in ClusterDefinition and ClusterVersion. It will replace the field in ClusterDefinition's and ClusterVersion's component if type is matching.
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	ComponentSpecs []ClusterComponentSpec `json:"componentSpecs,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`

	// affinity is a group of affinity scheduling rules.
	// +optional
	Affinity *Affinity `json:"affinity,omitempty"`

	// tolerations are attached to tolerate any taint that matches the triple `key,value,effect` using the matching operator `operator`.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	Tolerations []corev1.Toleration `json:"tolerations,omitempty"`
}

type ClusterStatus struct {
	// observedGeneration is the most recent generation observed for this
	// Cluster. It corresponds to the Cluster's generation, which is
	// updated on mutation by the API Server.
	// +optional
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`

	// phase describes the phase of the Cluster, the detail information of the phases are as following:
	// Running: cluster is running, all its components are available. [terminal state]
	// Stopped: cluster has stopped, all its components are stopped. [terminal state]
	// Failed: cluster is unavailable. [terminal state]
	// Abnormal: Cluster is still running, but part of its components are Abnormal/Failed. [terminal state]
	// Creating: Cluster has entered creating process.
	// Updating: Cluster has entered updating process, triggered by Spec. updated.
	// +optional
	Phase ClusterPhase `json:"phase,omitempty"`

	// message describes cluster details message in current phase.
	// +optional
	Message string `json:"message,omitempty"`

	// components record the current status information of all components of the cluster.
	// +optional
	Components map[string]ClusterComponentStatus `json:"components,omitempty"`

	// clusterDefGeneration represents the generation number of ClusterDefinition referenced.
	// +optional
	ClusterDefGeneration int64 `json:"clusterDefGeneration,omitempty"`

	// Describe current state of cluster API Resource, like warning.
	// +optional
	Conditions []metav1.Condition `json:"conditions,omitempty"`
}

type ClusterSwitchPolicy struct {

	// clusterSwitchPolicy type defined by Provider in ClusterDefinition, refer components[i].replicationSpec.switchPolicies[x].type
	// +kubebuilder:validation:Required
	// +kubebuilder:default=MaximumAvailability
	// +optional
	Type SwitchPolicyType `json:"type"`
}

type ClusterVersion struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   ClusterVersionSpec   `json:"spec,omitempty"`
	Status ClusterVersionStatus `json:"status,omitempty"`
}

type ClusterVersionList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []ClusterVersion `json:"items"`
}

type ClusterVersionSpec struct {
	// ref ClusterDefinition.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ClusterDefinitionRef string `json:"clusterDefinitionRef"`

	// List of components' containers versioning context, i.e., container image ID, container commands, args., and environments.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +patchMergeKey=componentDefRef
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentDefRef
	ComponentVersions []ClusterComponentVersion `json:"componentVersions" patchStrategy:"merge,retainKeys" patchMergeKey:"componentDefRef"`
}

type ClusterVersionStatus struct {
	// phase - in list of [Available,Unavailable]
	// +optional
	Phase Phase `json:"phase,omitempty"`

	// A human readable message indicating details about why the ClusterVersion is in this phase.
	// +optional
	Message string `json:"message,omitempty"`

	// generation number
	// +optional
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`

	// clusterDefGeneration represents the generation number of ClusterDefinition referenced.
	// +optional
	ClusterDefGeneration int64 `json:"clusterDefGeneration,omitempty"`
}

type CmdExecutorConfig struct {
	CommandExecutorEnvItem `json:",inline"`

	CommandExecutorItem `json:",inline"`
}

type CommandExecutorEnvItem struct {
	// image for Connector when executing the command.
	// +kubebuilder:validation:Required
	Image string `json:"image"`
	// envs is a list of environment variables.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +optional
	Env []corev1.EnvVar `json:"env,omitempty" patchStrategy:"merge" patchMergeKey:"name"`
}

type CommandExecutorItem struct {
	// command to perform statements.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	Command []string `json:"command"`
	// args is used to perform statements.
	// +optional
	Args []string `json:"args,omitempty"`
}

type CommonBackupPolicy struct {
	BasePolicy `json:",inline"`

	// which backup tool to perform database backup, only support one tool.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	BackupToolName string `json:"backupToolName,omitempty"`
}

type ComponentClass struct {
	// name is the class name
	// +optional
	Name string `json:"name,omitempty"`

	// args are variable's value
	// +optional
	Args []string `json:"args,omitempty"`

	// the CPU of the class
	// +optional
	CPU resource.Quantity `json:"cpu,omitempty"`

	// the memory of the class
	// +optional
	Memory resource.Quantity `json:"memory,omitempty"`
}

type ComponentClassDefinition struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   ComponentClassDefinitionSpec   `json:"spec,omitempty"`
	Status ComponentClassDefinitionStatus `json:"status,omitempty"`
}

type ComponentClassDefinitionList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []ComponentClassDefinition `json:"items"`
}

type ComponentClassDefinitionSpec struct {
	// group defines a list of class series that conform to the same constraint.
	// +optional
	Groups []ComponentClassGroup `json:"groups,omitempty"`
}

type ComponentClassDefinitionStatus struct {
	// observedGeneration is the most recent generation observed for this
	// ComponentClassDefinition. It corresponds to the ComponentClassDefinition's generation, which is
	// updated on mutation by the API Server.
	// +optional
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`

	// classes is the list of classes that have been observed for this ComponentClassDefinition
	Classes []ComponentClassInstance `json:"classes,omitempty"`
}

type ComponentClassGroup struct {
	// resourceConstraintRef reference to the resource constraint object name, indicates that the series
	// defined below all conform to the constraint.
	// +kubebuilder:validation:Required
	ResourceConstraintRef string `json:"resourceConstraintRef"`

	// template is a class definition template that uses the Go template syntax and allows for variable declaration.
	// When defining a class in Series, specifying the variable's value is sufficient, as the complete class
	// definition will be generated through rendering the template.
	//
	// For example:
	//	template: |
	//	  cpu: "{{ or .cpu 1 }}"
	//	  memory: "{{ or .memory 4 }}Gi"
	//
	// +optional
	Template string `json:"template,omitempty"`

	// vars defines the variables declared in the template and will be used to generating the complete class definition by
	// render the template.
	// +listType=set
	// +optional
	Vars []string `json:"vars,omitempty"`

	// series is a series of class definitions.
	// +optional
	Series []ComponentClassSeries `json:"series,omitempty"`
}

type ComponentClassInstance struct {
	ComponentClass `json:",inline"`

	// resourceConstraintRef reference to the resource constraint object name.
	ResourceConstraintRef string `json:"resourceConstraintRef,omitempty"`
}

type ComponentClassSeries struct {
	// namingTemplate is a template that uses the Go template syntax and allows for referencing variables defined
	// in ComponentClassGroup.Template. This enables dynamic generation of class names.
	// For example:
	// name: "general-{{ .cpu }}c{{ .memory }}g"
	// +optional
	NamingTemplate string `json:"namingTemplate,omitempty"`

	// classes are definitions of classes that come in two forms. In the first form, only ComponentClass.Args
	// need to be defined, and the complete class definition is generated by rendering the ComponentClassGroup.Template
	// and Name. In the second form, the Name, CPU and Memory must be defined.
	// +optional
	Classes []ComponentClass `json:"classes,omitempty"`
}

type ComponentConfigSpec struct {
	ComponentTemplateSpec `json:",inline"`

	// Specify a list of keys.
	// If empty, ConfigConstraint takes effect for all keys in configmap.
	// +listType=set
	// +optional
	Keys []string `json:"keys,omitempty"`

	// Specify the name of the referenced the configuration constraints object.
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	// +optional
	ConfigConstraintRef string `json:"constraintRef,omitempty"`
}

type ComponentMessageMap map[string]string

type ComponentNameSet map[string]struct{}

type ComponentOps struct {
	// componentName cluster component name.
	// +kubebuilder:validation:Required
	ComponentName string `json:"componentName"`
}

type ComponentResourceConstraint struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec ComponentResourceConstraintSpec `json:"spec,omitempty"`
}

type ComponentResourceConstraintList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []ComponentResourceConstraint `json:"items"`
}

type ComponentResourceConstraintSpec struct {
	// Component resource constraints
	Constraints []ResourceConstraint `json:"constraints,omitempty"`
}

type ComponentResourceKey string

type ComponentTemplateSpec struct {
	// Specify the name of configuration template.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// Specify the name of the referenced the configuration template ConfigMap object.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	TemplateRef string `json:"templateRef"`

	// Specify the namespace of the referenced the configuration template ConfigMap object.
	// An empty namespace is equivalent to the "default" namespace.
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:default="default"
	// +optional
	Namespace string `json:"namespace,omitempty"`

	// volumeName is the volume name of PodTemplate, which the configuration file produced through the configuration template will be mounted to the corresponding volume.
	// The volume name must be defined in podSpec.containers[*].volumeMounts.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=32
	VolumeName string `json:"volumeName"`

	// defaultMode is optional: mode bits used to set permissions on created files by default.
	// Must be an octal value between 0000 and 0777 or a decimal value between 0 and 511.
	// YAML accepts both octal and decimal values, JSON requires decimal values for mode bits.
	// Defaults to 0644.
	// Directories within the path are not affected by this setting.
	// This might be in conflict with other options that affect the file
	// mode, like fsGroup, and the result can be other mode bits set.
	// +optional
	DefaultMode *int32 `json:"defaultMode,omitempty" protobuf:"varint,3,opt,name=defaultMode"`
}

type ConfigConstraint struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   ConfigConstraintSpec   `json:"spec,omitempty"`
	Status ConfigConstraintStatus `json:"status,omitempty"`
}

type ConfigConstraintList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []ConfigConstraint `json:"items"`
}

type ConfigConstraintPhase string

type ConfigConstraintSpec struct {
	// reloadOptions indicates whether the process supports reload.
	// if set, the controller will determine the behavior of the engine instance based on the configuration templates,
	// restart or reload depending on whether any parameters in the StaticParameters have been modified.
	// +optional
	ReloadOptions *ReloadOptions `json:"reloadOptions,omitempty"`

	// cfgSchemaTopLevelName is cue type name, which generates openapi schema.
	// +optional
	CfgSchemaTopLevelName string `json:"cfgSchemaTopLevelName,omitempty"`

	// configurationSchema imposes restrictions on database parameter's rule.
	// +optional
	ConfigurationSchema *CustomParametersValidation `json:"configurationSchema,omitempty"`

	// staticParameters, list of StaticParameter, modifications of them trigger a process restart.
	// +listType=set
	// +optional
	StaticParameters []string `json:"staticParameters,omitempty"`

	// dynamicParameters, list of DynamicParameter, modifications of them trigger a config dynamic reload without process restart.
	// +listType=set
	// +optional
	DynamicParameters []string `json:"dynamicParameters,omitempty"`

	// immutableParameters describes parameters that prohibit user from modification.
	// +listType=set
	// +optional
	ImmutableParameters []string `json:"immutableParameters,omitempty"`

	// selector is used to match the label on the pod,
	// for example, a pod of the primary is match on the patroni cluster.
	Selector *metav1.LabelSelector `json:"selector,omitempty"`

	// formatterConfig describes the format of the configuration file, the controller
	// 1. parses configuration file
	// 2. analyzes the modified parameters
	// 3. applies corresponding policies.
	// +kubebuilder:validation:Required
	FormatterConfig *FormatterConfig `json:"formatterConfig"`
}

type ConfigConstraintStatus struct {
	// phase is status of configuration template, when set to CCAvailablePhase, it can be referenced by ClusterDefinition or ClusterVersion.
	// +optional
	Phase ConfigConstraintPhase `json:"phase,omitempty"`

	// message field describes the reasons of abnormal status.
	// +optional
	Message string `json:"message,omitempty"`

	// observedGeneration is the latest generation observed for this
	// ClusterDefinition. It refers to the ConfigConstraint's generation, which is
	// updated by the API Server.
	// +optional
	ObservedGeneration int64 `json:"observedGeneration,omitempty"`
}

type Configuration struct {
	// name is a config template name.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// keys is used to set the parameters to be updated.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +patchMergeKey=key
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=key
	Keys []ParameterConfig `json:"keys" patchStrategy:"merge,retainKeys" patchMergeKey:"key"`
}

type ConfigurationStatus struct {
	// name is a config template name.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// updatePolicy describes the policy of reconfiguring.
	// +optional
	UpdatePolicy UpgradePolicy `json:"updatePolicy,omitempty"`

	// status describes the current state of the reconfiguring state machine.
	// +optional
	Status string `json:"status,omitempty"`

	// succeedCount describes the number of successful reconfiguring.
	// +kubebuilder:default=0
	// +optional
	SucceedCount int32 `json:"succeedCount"`

	// expectedCount describes the number of expected reconfiguring.
	// +kubebuilder:default=-1
	// +optional
	ExpectedCount int32 `json:"expectedCount"`

	// lastStatus describes the last status for the reconfiguring controller.
	// +optional
	LastAppliedStatus string `json:"lastStatus,omitempty"`

	// LastAppliedConfiguration describes the last configuration.
	// +optional
	LastAppliedConfiguration map[string]string `json:"lastAppliedConfiguration,omitempty"`

	// updatedParameters describes the updated parameters.
	// +optional
	UpdatedParameters UpdatedParameters `json:"updatedParameters"`
}

type ConnectionCredentialKey struct {
	// the key of password in the ConnectionCredential secret.
	// if not set, the default key is "password".
	// +optional
	PasswordKey *string `json:"passwordKey,omitempty"`

	// the key of username in the ConnectionCredential secret.
	// if not set, the default key is "username".
	// +optional
	UsernameKey *string `json:"usernameKey,omitempty"`
}

type ConsensusMember struct {
	// name, role name.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=leader
	Name string `json:"name"`

	// accessMode, what service this member capable.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=ReadWrite
	AccessMode AccessMode `json:"accessMode"`

	// replicas, number of Pods of this role.
	// default 1 for Leader
	// default 0 for Learner
	// default Cluster.spec.componentSpec[*].Replicas - Leader.Replicas - Learner.Replicas for Followers
	// +kubebuilder:default=0
	// +kubebuilder:validation:Minimum=0
	// +optional
	Replicas *int32 `json:"replicas,omitempty"`
}

type ConsensusMemberStatus struct {
	// Defines the role name.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=leader
	Name string `json:"name"`

	// accessMode defines what service this pod provides.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=ReadWrite
	AccessMode AccessMode `json:"accessMode"`

	// Pod name.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=Unknown
	Pod string `json:"pod"`
}

type ConsensusSetSpec struct {
	// leader, one single leader.
	// +kubebuilder:validation:Required
	Leader ConsensusMember `json:"leader"`

	// followers, has voting right but not Leader.
	// +optional
	Followers []ConsensusMember `json:"followers,omitempty"`

	// learner, no voting right.
	// +optional
	Learner *ConsensusMember `json:"learner,omitempty"`

	// updateStrategy, Pods update strategy.
	// serial: update Pods one by one that guarantee minimum component unavailable time.
	// 		Learner -> Follower(with AccessMode=none) -> Follower(with AccessMode=readonly) -> Follower(with AccessMode=readWrite) -> Leader
	// bestEffortParallel: update Pods in parallel that guarantee minimum component un-writable time.
	//		Learner, Follower(minority) in parallel -> Follower(majority) -> Leader, keep majority online all the time.
	// parallel: force parallel
	// +kubebuilder:default=Serial
	// +optional
	UpdateStrategy UpdateStrategy `json:"updateStrategy,omitempty"`
}

type ConsensusSetStatus struct {
	// Leader status.
	// +kubebuilder:validation:Required
	Leader ConsensusMemberStatus `json:"leader"`

	// Followers status.
	// +optional
	Followers []ConsensusMemberStatus `json:"followers,omitempty"`

	// Learner status.
	// +optional
	Learner *ConsensusMemberStatus `json:"learner,omitempty"`
}

type CustomLabelSpec struct {
	// key name of label
	// +kubebuilder:validation:Required
	Key string `json:"key"`

	// value of label
	// +kubebuilder:validation:Required
	Value string `json:"value"`

	// resources defines the resources to be labeled.
	// +kubebuilder:validation:Required
	Resources []GVKResource `json:"resources,omitempty"`
}

type CustomParametersValidation struct {
	// schema provides a way for providers to validate the changed parameters through json.
	// +kubebuilder:validation:Schemaless
	// +kubebuilder:validation:ComponentDefRef=object
	// +kubebuilder:pruning:PreserveUnknownFields
	Schema *apiext.JSONSchemaProps `json:"schema,omitempty"`

	// cue that to let provider verify user configuration through cue language.
	// +optional
	CUE string `json:"cue,omitempty"`
}

type ExporterConfig struct {
	// scrapePort is exporter port for Time Series Database to scrape metrics.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:XIntOrString
	ScrapePort intstr.IntOrString `json:"scrapePort"`

	// scrapePath is exporter url path for Time Series Database to scrape metrics.
	// +kubebuilder:validation:MaxLength=128
	// +kubebuilder:default="/metrics"
	// +optional
	ScrapePath string `json:"scrapePath,omitempty"`
}

type Expose struct {
	ComponentOps `json:",inline"`

	// Setting the list of services to be exposed.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Minitems=0
	Services []ClusterComponentService `json:"services"`
}

type FormatterConfig struct {
	// The FormatterOptions represents the special options of configuration file.
	// This is optional for now. If not specified.
	// +optional
	FormatterOptions `json:",inline"`

	// The configuration file format. Valid values are ini, xml, yaml, json,
	// hcl, dotenv, properties and toml.
	//
	// ini: a configuration file that consists of a text-based content with a structure and syntax comprising key–value pairs for properties, reference wiki: https://en.wikipedia.org/wiki/INI_file
	// xml: reference wiki: https://en.wikipedia.org/wiki/XML
	// yaml: a configuration file support for complex data types and structures.
	// json: reference wiki: https://en.wikipedia.org/wiki/JSON
	// hcl: : The HashiCorp Configuration Language (HCL) is a configuration language authored by HashiCorp, reference url: https://www.linode.com/docs/guides/introduction-to-hcl/
	// dotenv: this was a plain text file with simple key–value pairs, reference wiki: https://en.wikipedia.org/wiki/Configuration_file#MS-DOS
	// properties: a file extension mainly used in Java, reference wiki: https://en.wikipedia.org/wiki/.properties
	// toml: reference wiki: https://en.wikipedia.org/wiki/TOML
	// +kubebuilder:validation:Required
	Format CfgFileFormat `json:"format"`
}

type FormatterOptions struct {
	// iniConfig represents the ini options.
	// +optional
	IniConfig *IniConfig `json:"iniConfig,omitempty"`
}

type GVKResource struct {
	// gvk is Group/Version/Kind, for example "v1/Pod", "apps/v1/StatefulSet", etc.
	// when the gvk resource filtered by the selector already exists, if there is no corresponding custom label, it will be added, and if label already exists, it will be updated.
	// +kubebuilder:validation:Required
	GVK string `json:"gvk"`

	// selector is a label query over a set of resources.
	// +optional
	Selector map[string]string `json:"selector,omitempty"`
}

type HScaleDataClonePolicyType string

type HorizontalScalePolicy struct {
	// type controls what kind of data synchronization do when component scale out.
	// Policy is in enum of {None, Snapshot}. The default policy is `None`.
	// None: Default policy, do nothing.
	// Snapshot: Do native volume snapshot before scaling and restore to newly scaled pods.
	//           Prefer backup job to create snapshot if can find a backupPolicy from 'BackupPolicyTemplateName'.
	//           Notice that 'Snapshot' policy will only take snapshot on one volumeMount, default is
	//           the first volumeMount of first container (i.e. clusterdefinition.spec.components.podSpec.containers[0].volumeMounts[0]),
	//           since take multiple snapshots at one time might cause consistency problem.
	// +kubebuilder:default=None
	// +optional
	Type HScaleDataClonePolicyType `json:"type,omitempty"`

	// BackupPolicyTemplateName reference the backup policy template.
	// +optional
	BackupPolicyTemplateName string `json:"backupPolicyTemplateName,omitempty"`

	// volumeMountsName defines which volumeMount of the container to do backup,
	// only work if Type is not None
	// if not specified, the 1st volumeMount will be chosen
	// +optional
	VolumeMountsName string `json:"volumeMountsName,omitempty"`
}

type HorizontalScaling struct {
	ComponentOps `json:",inline"`

	// replicas for the workloads.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Minimum=0
	Replicas int32 `json:"replicas"`
}

type IniConfig struct {
	// sectionName describes ini section.
	// +optional
	SectionName string `json:"sectionName,omitempty"`
}

type Issuer struct {
	// Name of issuer.
	// Options supported:
	// - KubeBlocks - Certificates signed by KubeBlocks Operator.
	// - UserProvided - User provided own CA-signed certificates.
	// +kubebuilder:validation:Enum={KubeBlocks, UserProvided}
	// +kubebuilder:default=KubeBlocks
	// +kubebuilder:validation:Required
	Name IssuerName `json:"name"`

	// secretRef. TLS certs Secret reference
	// required when from is UserProvided
	// +optional
	SecretRef *TLSSecretRef `json:"secretRef,omitempty"`
}

type IssuerName string

type KBAccountType uint8

type LastComponentConfiguration struct {
	// replicas are the last replicas of the component.
	// +optional
	Replicas *int32 `json:"replicas,omitempty"`

	// the last resources of the component.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	corev1.ResourceRequirements `json:",inline,omitempty"`

	// the last class name of the component.
	// +optional
	Class string `json:"class,omitempty"`

	// volumeClaimTemplates records the last volumeClaimTemplates of the component.
	// +optional
	VolumeClaimTemplates []OpsRequestVolumeClaimTemplate `json:"volumeClaimTemplates,omitempty"`

	// services records the last services of the component.
	// +optional
	Services []ClusterComponentService `json:"services,omitempty"`

	// targetResources records the affecting target resources information for the component.
	// resource key is in list of [pods].
	// +optional
	TargetResources map[ComponentResourceKey][]string `json:"targetResources,omitempty"`
}

type LastConfiguration struct {
	// clusterVersionRef references ClusterVersion name.
	// +optional
	ClusterVersionRef string `json:"clusterVersionRef,omitempty"`

	// components records last configuration of the component.
	// +optional
	Components map[string]LastComponentConfiguration `json:"components,omitempty"`
}

type LetterCase string

type LogConfig struct {
	// name log type name, such as slow for MySQL slow log file.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=128
	Name string `json:"name"`

	// filePathPattern log file path pattern which indicate how to find this file
	// corresponding to variable (log path) in database kernel. please don't set this casually.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MaxLength=4096
	FilePathPattern string `json:"filePathPattern"`
}

type MemoryConstraint struct {
	// The size of memory per vcpu core.
	// For example: 1Gi, 200Mi.
	// If SizePerCPU is specified, MinPerCPU and MaxPerCPU are ignore.
	// +optional
	SizePerCPU *resource.Quantity `json:"sizePerCPU,omitempty"`

	// The maximum size of memory per vcpu core, [MinPerCPU, MaxPerCPU] defines a range for valid memory size per vcpu core.
	// It is useful on GCP as the ratio between the CPU and memory may be a range.
	// If SizePerCPU is specified, MinPerCPU and MaxPerCPU are ignored.
	// Reference: https://cloud.google.com/compute/docs/general-purpose-machines#custom_machine_types
	// +optional
	MaxPerCPU *resource.Quantity `json:"maxPerCPU,omitempty"`

	// The minimum size of memory per vcpu core, [MinPerCPU, MaxPerCPU] defines a range for valid memory size per vcpu core.
	// It is useful on GCP as the ratio between the CPU and memory may be a range.
	// If SizePerCPU is specified, MinPerCPU and MaxPerCPU are ignored.
	// Reference: https://cloud.google.com/compute/docs/general-purpose-machines#custom_machine_types
	// +optional
	MinPerCPU *resource.Quantity `json:"minPerCPU,omitempty"`
}

type MonitorConfig struct {
	// builtIn is a switch to enable KubeBlocks builtIn monitoring.
	// If BuiltIn is set to false, the provider should set ExporterConfig and Sidecar container own.
	// BuiltIn set to true is not currently supported but will be soon.
	// +kubebuilder:default=false
	// +optional
	BuiltIn bool `json:"builtIn,omitempty"`

	// exporterConfig provided by provider, which specify necessary information to Time Series Database.
	// exporterConfig is valid when builtIn is false.
	// +optional
	Exporter *ExporterConfig `json:"exporterConfig,omitempty"`
}

type OpsPhase string

type OpsRecorder struct {
	// name OpsRequest name
	Name string `json:"name"`
	// clusterPhase the cluster phase when the OpsRequest is running
	Type OpsType `json:"type"`
}

type OpsRequest struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`

	Spec   OpsRequestSpec   `json:"spec,omitempty"`
	Status OpsRequestStatus `json:"status,omitempty"`
}

type OpsRequestBehaviour struct {
	FromClusterPhases                  []ClusterPhase
	ToClusterPhase                     ClusterPhase
	ProcessingReasonInClusterCondition string
}

type OpsRequestComponentStatus struct {
	// phase describes the component phase, reference Cluster.status.component.phase.
	// +optional
	Phase ClusterComponentPhase `json:"phase,omitempty"`

	// progressDetails describes the progress details of the component for this operation.
	// +optional
	ProgressDetails []ProgressStatusDetail `json:"progressDetails,omitempty"`

	// workloadType references workload type of component in ClusterDefinition.
	// +optional
	WorkloadType WorkloadType `json:"workloadType,omitempty"`
}

type OpsRequestList struct {
	metav1.TypeMeta `json:",inline"`
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []OpsRequest `json:"items"`
}

type OpsRequestSpec struct {
	// clusterRef references clusterDefinition.
	// +kubebuilder:validation:Required
	ClusterRef string `json:"clusterRef"`

	// type defines the operation type.
	// +kubebuilder:validation:Required
	Type OpsType `json:"type"`

	// ttlSecondsAfterSucceed OpsRequest will be deleted after TTLSecondsAfterSucceed second when OpsRequest.status.phase is Succeed.
	// +optional
	TTLSecondsAfterSucceed int32 `json:"ttlSecondsAfterSucceed,omitempty"`

	// upgrade specifies the cluster version by specifying clusterVersionRef.
	// +optional
	Upgrade *Upgrade `json:"upgrade,omitempty"`

	// horizontalScaling defines what component need to horizontal scale the specified replicas.
	// +optional
	// +patchMergeKey=componentName
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentName
	HorizontalScalingList []HorizontalScaling `json:"horizontalScaling,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"componentName"`

	// volumeExpansion defines what component and volumeClaimTemplate need to expand the specified storage.
	// +optional
	// +patchMergeKey=componentName
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentName
	VolumeExpansionList []VolumeExpansion `json:"volumeExpansion,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"componentName"`

	// restart the specified component.
	// +optional
	// +patchMergeKey=componentName
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentName
	RestartList []ComponentOps `json:"restart,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"componentName"`

	// verticalScaling defines what component need to vertical scale the specified compute resources.
	// +optional
	// +patchMergeKey=componentName
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentName
	VerticalScalingList []VerticalScaling `json:"verticalScaling,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"componentName"`

	// reconfigure defines the variables that need to input when updating configuration.
	// +optional
	Reconfigure *Reconfigure `json:"reconfigure,omitempty"`

	// expose defines services the component needs to expose.
	// +optional
	// +patchMergeKey=componentName
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=componentName
	ExposeList []Expose `json:"expose,omitempty" patchStrategy:"merge,retainKeys" patchMergeKey:"componentName"`

	// cluster RestoreFrom backup or point in time
	// +optional
	RestoreFrom *RestoreFromSpec `json:"restoreFrom,omitempty"`
}

type OpsRequestStatus struct {

	// ClusterGeneration records the cluster generation after handling the opsRequest action.
	// +optional
	ClusterGeneration int64 `json:"clusterGeneration,omitempty"`

	// phase describes OpsRequest phase.
	Phase OpsPhase `json:"phase,omitempty"`

	// +kubebuilder:validation:Pattern:=`^(\d+|\-)/(\d+|\-)$`
	// +kubebuilder:default=-/-
	Progress string `json:"progress"`

	// lastConfiguration records the last configuration before this operation take effected.
	// +optional
	LastConfiguration LastConfiguration `json:"lastConfiguration,omitempty"`

	// components defines the recorded the status information of changed components for operation request.
	// +optional
	Components map[string]OpsRequestComponentStatus `json:"components,omitempty"`

	// startTimestamp The time when the OpsRequest started processing.
	// +optional
	StartTimestamp metav1.Time `json:"startTimestamp,omitempty"`

	// completionTimestamp defines the OpsRequest completion time.
	// +optional
	CompletionTimestamp metav1.Time `json:"completionTimestamp,omitempty"`

	// reconfiguringStatus defines the status information of reconfiguring.
	// +optional
	ReconfiguringStatus *ReconfiguringStatus `json:"reconfiguringStatus,omitempty"`

	// conditions describes opsRequest detail status.
	// +optional
	// +patchMergeKey=type
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=type
	Conditions []metav1.Condition `json:"conditions,omitempty"`
}

type OpsRequestVolumeClaimTemplate struct {
	// Request storage size.
	// +kubebuilder:validation:Required
	Storage resource.Quantity `json:"storage"`

	// name references volumeClaimTemplate name from cluster components.
	// +kubebuilder:validation:Required
	Name string `json:"name"`
}

type OpsType string

type ParameterConfig struct {
	// key indicates the key name of ConfigMap.
	// +kubebuilder:validation:Required
	Key string `json:"key"`

	// Setting the list of parameters for a single configuration file.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	Parameters []ParameterPair `json:"parameters"`
}

type ParameterPair struct {
	// key is name of the parameter to be updated.
	// +kubebuilder:validation:Required
	Key string `json:"key"`

	// parameter values to be updated.
	// if set nil, the parameter defined by the key field will be deleted from the configuration file.
	// +kubebuilder:validation:Required
	Value *string `json:"value"`
}

type PasswordConfig struct {
	// length defines the length of password.
	// +kubebuilder:validation:Maximum=32
	// +kubebuilder:validation:Minimum=8
	// +kubebuilder:default=10
	// +optional
	Length int32 `json:"length,omitempty"`
	//  numDigits defines number of digits.
	// +kubebuilder:validation:Maximum=20
	// +kubebuilder:validation:Minimum=0
	// +kubebuilder:default=2
	// +optional
	NumDigits int32 `json:"numDigits,omitempty"`
	// numSymbols defines number of symbols.
	// +kubebuilder:validation:Maximum=20
	// +kubebuilder:validation:Minimum=0
	// +kubebuilder:default=0
	// +optional
	NumSymbols int32 `json:"numSymbols,omitempty"`
	// letterCase defines to use lower-cases, upper-cases or mixed-cases of letters.
	// +kubebuilder:default=MixedCases
	// +optional
	LetterCase LetterCase `json:"letterCase,omitempty"`
}

type PersistentVolumeClaimSpec struct {
	// accessModes contains the desired access modes the volume should have.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#access-modes-1.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	AccessModes []corev1.PersistentVolumeAccessMode `json:"accessModes,omitempty" protobuf:"bytes,1,rep,name=accessModes,casttype=PersistentVolumeAccessMode"`
	// resources represents the minimum resources the volume should have.
	// If RecoverVolumeExpansionFailure feature is enabled users are allowed to specify resource requirements
	// that are lower than previous value but must still be higher than capacity recorded in the
	// status field of the claim.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#resources.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +optional
	Resources corev1.ResourceRequirements `json:"resources,omitempty" protobuf:"bytes,2,opt,name=resources"`
	// storageClassName is the name of the StorageClass required by the claim.
	// More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#class-1.
	// +optional
	StorageClassName *string `json:"storageClassName,omitempty" protobuf:"bytes,5,opt,name=storageClassName"`
}

type Phase string

type PodAntiAffinity string

type PointInTimeRefSpec struct {
	// specify the time point to restore, with UTC as the time zone.
	// +optional
	Time *metav1.Time `json:"time,omitempty"`

	// specify a reference source cluster to restore
	// +optional
	Ref RefNamespaceName `json:"ref,omitempty"`
}

type ProgressStatus string

type ProgressStatusDetail struct {
	// group describes which group the current object belongs to.
	// if the objects of a component belong to the same group, we can ignore it.
	// +optional
	Group string `json:"group,omitempty"`

	// objectKey is the unique key of the object.
	// +kubebuilder:validation:Required
	ObjectKey string `json:"objectKey"`

	// status describes the state of processing the object.
	// +kubebuilder:validation:Required
	Status ProgressStatus `json:"status"`

	// message is a human readable message indicating details about the object condition.
	// +optional
	Message string `json:"message,omitempty"`

	// startTime is the start time of object processing.
	// +optional
	StartTime metav1.Time `json:"startTime,omitempty"`

	// endTime is the completion time of object processing.
	// +optional
	EndTime metav1.Time `json:"endTime,omitempty"`
}

type ProvisionPolicy struct {
	// type defines the way to provision an account, either `CreateByStmt` or `ReferToExisting`.
	// +kubebuilder:validation:Required
	Type ProvisionPolicyType `json:"type"`
	// scope is the scope to provision account, and the scope could be `anyPod` or `allPods`.
	// +kubebuilder:default=AnyPods
	Scope ProvisionScope `json:"scope"`
	// statements will be used when Type is CreateByStmt.
	// +optional
	Statements *ProvisionStatements `json:"statements,omitempty"`
	// secretRef will be used when Type is ReferToExisting.
	// +optional
	SecretRef *ProvisionSecretRef `json:"secretRef,omitempty"`
}

type ProvisionPolicyType string

type ProvisionScope string

type ProvisionSecretRef struct {
	// name refers to the name of the secret.
	// +kubebuilder:validation:Required
	Name string `json:"name"`
	// namespace refers to the namespace of the secret.
	// +kubebuilder:validation:Required
	Namespace string `json:"namespace"`
}

type ProvisionStatements struct {
	// creation specifies statement how to create this account with required privileges.
	// +kubebuilder:validation:Required
	CreationStatement string `json:"creation"`
	// deletion specifies statement how to delete this account.
	// +optional
	DeletionStatement string `json:"deletion,omitempty"`
}

type Reconfigure struct {
	ComponentOps `json:",inline"`

	// configurations defines which components perform the operation.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	Configurations []Configuration `json:"configurations" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`
}

type ReconfiguringStatus struct {
	// configurationStatus describes the status of the component reconfiguring.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	ConfigurationStatus []ConfigurationStatus `json:"configurationStatus"`
}

type RefNamespaceName struct {
	// specified the name
	// +optional
	Name string `json:"name,omitempty"`

	// specified the namespace
	// +optional
	Namespace string `json:"namespace,omitempty"`
}

type ReloadOptions struct {
	// unixSignalTrigger used to reload by sending a signal.
	// +optional
	UnixSignalTrigger *UnixSignalTrigger `json:"unixSignalTrigger,omitempty"`

	// shellTrigger performs the reload command.
	// +optional
	ShellTrigger *ShellTrigger `json:"shellTrigger,omitempty"`

	// goTplTrigger performs the reload command.
	// +optional
	TPLScriptTrigger *TPLScriptTrigger `json:"tplScriptTrigger"`
}

type ReplicationMemberStatus struct {
	// Pod name.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=Unknown
	Pod string `json:"pod"`
}

type ReplicationSetStatus struct {
	// Primary status.
	// +kubebuilder:validation:Required
	Primary ReplicationMemberStatus `json:"primary"`

	// Secondaries status.
	// +optional
	Secondaries []ReplicationMemberStatus `json:"secondaries,omitempty"`
}

type ReplicationSpec struct {
	// switchPolicies defines a collection of different types of switchPolicy, and each type of switchPolicy is limited to one.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	SwitchPolicies []SwitchPolicy `json:"switchPolicies,omitempty"`

	// switchCmdExecutorConfig configs how to get client SDK and perform switch statements.
	// +kubebuilder:validation:Required
	SwitchCmdExecutorConfig *SwitchCmdExecutorConfig `json:"switchCmdExecutorConfig"`
}

type ResourceConstraint struct {
	// The constraint for vcpu cores.
	// +kubebuilder:validation:Required
	CPU CPUConstraint `json:"cpu"`

	// The constraint for memory size.
	// +kubebuilder:validation:Required
	Memory MemoryConstraint `json:"memory"`
}

type RestoreFromSpec struct {
	// use the backup name and component name for restore, support for multiple components' recovery.
	// +optional
	Backup []BackupRefSpec `json:"backup,omitempty"`

	// specified the point in time to recovery
	// +optional
	PointInTime *PointInTimeRefSpec `json:"pointInTime,omitempty"`
}

type RetentionSpec struct {
	// ttl is a time string ending with the 'd'|'D'|'h'|'H' character to describe how long
	// the Backup should be retained. if not set, will be retained forever.
	// +kubebuilder:validation:Pattern:=`^\d+[d|D|h|H]$`
	// +optional
	TTL *string `json:"ttl,omitempty"`
}

type Schedule struct {
	// schedule policy for snapshot backup.
	// +optional
	Snapshot *SchedulePolicy `json:"snapshot,omitempty"`

	// schedule policy for datafile backup.
	// +optional
	Datafile *SchedulePolicy `json:"datafile,omitempty"`

	// schedule policy for logfile backup.
	// +optional
	Logfile *SchedulePolicy `json:"logfile,omitempty"`
}

type SchedulePolicy struct {
	// the cron expression for schedule, the timezone is in UTC. see https://en.wikipedia.org/wiki/Cron.
	// +kubebuilder:validation:Required
	CronExpression string `json:"cronExpression"`

	// enable or disable the schedule.
	// +kubebuilder:validation:Required
	Enable bool `json:"enable"`
}

type ServicePort struct {
	// The name of this port within the service. This must be a DNS_LABEL.
	// All ports within a ServiceSpec must have unique names. When considering
	// the endpoints for a Service, this must match the 'name' field in the
	// EndpointPort.
	// +kubebuilder:validation:Required
	Name string `json:"name,omitempty" protobuf:"bytes,1,opt,name=name"`

	// The IP protocol for this port. Supports "TCP", "UDP", and "SCTP".
	// Default is TCP.
	// +kubebuilder:validation:Enum={TCP,UDP,SCTP}
	// +default="TCP"
	// +optional
	Protocol corev1.Protocol `json:"protocol,omitempty" protobuf:"bytes,2,opt,name=protocol,casttype=Protocol"`

	// The application protocol for this port.
	// This field follows standard Kubernetes label syntax.
	// Un-prefixed names are reserved for IANA standard service names (as per
	// RFC-6335 and https://www.iana.org/assignments/service-names).
	// Non-standard protocols should use prefixed names such as
	// mycompany.com/my-custom-protocol.
	// +optional
	AppProtocol *string `json:"appProtocol,omitempty" protobuf:"bytes,6,opt,name=appProtocol"`

	// The port that will be exposed by this service.
	Port int32 `json:"port" protobuf:"varint,3,opt,name=port"`

	// Number or name of the port to access on the pods targeted by the service.
	// Number must be in the range 1 to 65535. Name must be an IANA_SVC_NAME.
	// If this is a string, it will be looked up as a named port in the
	// target Pod's container ports. If this is not specified, the value
	// of the 'port' field is used (an identity map).
	// This field is ignored for services with clusterIP=None, and should be
	// omitted or set equal to the 'port' field.
	// More info: https://kubernetes.io/docs/concepts/services-networking/service/#defining-a-service
	// +kubebuilder:validation:XIntOrString
	// +optional
	TargetPort intstr.IntOrString `json:"targetPort,omitempty" protobuf:"bytes,4,opt,name=targetPort"`
}

type ServiceSpec struct {
	// The list of ports that are exposed by this service.
	// More info: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies
	// +patchMergeKey=port
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=port
	// +listMapKey=protocol
	// +optional
	Ports []ServicePort `json:"ports,omitempty" patchStrategy:"merge" patchMergeKey:"port" protobuf:"bytes,1,rep,name=ports"`
}

type ShellTrigger struct {
	// exec used to execute for reload.
	// +kubebuilder:validation:Required
	Exec string `json:"exec"`

	// scriptConfigMapRef used to execute for reload.
	// +kubebuilder:validation:Required
	ScriptConfigMapRef string `json:"scriptConfigMapRef"`

	// Specify the namespace of the referenced the tpl script ConfigMap object.
	// An empty namespace is equivalent to the "default" namespace.
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:default="default"
	// +optional
	Namespace string `json:"namespace,omitempty"`
}

type SignalType string

type SnapshotPolicy struct {
	BasePolicy `json:",inline"`

	// execute hook commands for backup.
	// +optional
	Hooks *BackupPolicyHook `json:"hooks,omitempty"`
}

type SwitchCmdExecutorConfig struct {
	CommandExecutorEnvItem `json:",inline"`

	// switchSteps definition, users can customize the switching steps on the provided three roles - NewPrimary, OldPrimary, and Secondaries.
	// the same role can customize multiple steps in the order of the list, and KubeBlocks will perform switching operations in the defined order.
	// if switchStep is not set, we will try to use the built-in switchStep for the database engine with built-in support.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +optional
	SwitchSteps []SwitchStep `json:"switchSteps"`
}

type SwitchPolicy struct {
	// switchPolicyType defines type of the switchPolicy.
	// MaximumAvailability: when the primary is active, do switch if the synchronization delay = 0 in the user-defined lagProbe data delay detection logic, otherwise do not switch. The primary is down, switch immediately.
	// MaximumDataProtection: when the primary is active, do switch if synchronization delay = 0 in the user-defined lagProbe data lag detection logic, otherwise do not switch. If the primary is down, if it can be judged that the primary and secondary data are consistent, then do the switch, otherwise do not switch.
	// Noop: KubeBlocks will not perform high-availability switching on components. Users need to implement HA by themselves.
	// +kubebuilder:validation:Required
	// +kubebuilder:default=MaximumAvailability
	Type SwitchPolicyType `json:"type"`

	// switchStatements defines switching actions according to their respective roles, We divide all pods into three switchStatement role={Promote,Demote,Follow}.
	// Promote: candidate primary after elected, which to be promoted
	// Demote: primary before switch, which to be demoted
	// Follow: the other secondaries that are not selected as the primary, which to follow the new primary
	// if switchStatements is not set，we will try to use the built-in switchStatements for the database engine with built-in support.
	// +optional
	SwitchStatements *SwitchStatements `json:"switchStatements,omitempty"`
}

type SwitchPolicyType string

type SwitchStatements struct {
	// promote defines the switching actions for the candidate primary which to be promoted.
	// +optional
	Promote []string `json:"promote,omitempty"`

	// demote defines the switching actions for the old primary which to be demoted.
	// +optional
	Demote []string `json:"demote,omitempty"`

	// follow defines the switching actions for the other secondaries which are not selected as the primary.
	// +optional
	Follow []string `json:"follow,omitempty"`
}

type SwitchStep struct {
	CommandExecutorItem `json:",inline"`

	// role determines which role to execute the command on, role is divided into three roles NewPrimary, OldPrimary, and Secondaries.
	Role SwitchStepRole `json:"role"`
}

type SwitchStepRole string

type SystemAccountConfig struct {
	// name is the name of a system account.
	// +kubebuilder:validation:Required
	Name AccountName `json:"name"`
	// provisionPolicy defines how to create account.
	// +kubebuilder:validation:Required
	ProvisionPolicy ProvisionPolicy `json:"provisionPolicy"`
}

type SystemAccountSpec struct {
	// cmdExecutorConfig configs how to get client SDK and perform statements.
	// +kubebuilder:validation:Required
	CmdExecutorConfig *CmdExecutorConfig `json:"cmdExecutorConfig"`
	// passwordConfig defines the pattern to generate password.
	// +kubebuilder:validation:Required
	PasswordConfig PasswordConfig `json:"passwordConfig"`
	// accounts defines system account config settings.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:MinItems=1
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	Accounts []SystemAccountConfig `json:"accounts" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`
}

type TLSSecretRef struct {
	// Name of the Secret
	// +kubebuilder:validation:Required
	Name string `json:"name"`

	// CA cert key in Secret
	// +kubebuilder:validation:Required
	CA string `json:"ca"`

	// Cert key in Secret
	// +kubebuilder:validation:Required
	Cert string `json:"cert"`

	// Key of TLS private key in Secret
	// +kubebuilder:validation:Required
	Key string `json:"key"`
}

type TPLScriptTrigger struct {
	// scriptConfigMapRef used to execute for reload.
	// +kubebuilder:validation:Required
	ScriptConfigMapRef string `json:"scriptConfigMapRef"`

	// Specify the namespace of the referenced the tpl script ConfigMap object.
	// An empty namespace is equivalent to the "default" namespace.
	// +kubebuilder:validation:MaxLength=63
	// +kubebuilder:default="default"
	// +optional
	Namespace string `json:"namespace,omitempty"`

	// Specify synchronize updates parameters to the config manager.
	// +optional
	Sync *bool `json:"sync,omitempty"`
}

type TargetInstance struct {
	// select instance of corresponding role for backup, role are:
	// - the name of Leader/Follower/Leaner for Consensus component.
	// - primary or secondary for Replication component.
	// finally, invalid role of the component will be ignored.
	// such as if workload type is Replication and component's replicas is 1,
	// the secondary role is invalid. and it also will be ignored when component is Stateful/Stateless.
	// the role will be transformed to a role LabelSelector for BackupPolicy's target attribute.
	// +optional
	Role string `json:"role"`

	// refer to spec.componentDef.systemAccounts.accounts[*].name in ClusterDefinition.
	// the secret created by this account will be used to connect the database.
	// if not set, the secret created by spec.ConnectionCredential of the ClusterDefinition will be used.
	// it will be transformed to a secret for BackupPolicy's target secret.
	// +optional
	Account string `json:"account,omitempty"`

	// connectionCredentialKey defines connection credential key in secret
	// which created by spec.ConnectionCredential of the ClusterDefinition.
	// it will be ignored when "account" is set.
	ConnectionCredentialKey ConnectionCredentialKey `json:"connectionCredentialKey,omitempty"`
}

type TenancyType string

type TerminationPolicyType string

type UnixSignalTrigger struct {
	// signal is valid for unix signal.
	// e.g: SIGHUP
	// url: ../../internal/configuration/configmap/handler.go:allUnixSignals
	// +kubebuilder:validation:Required
	Signal SignalType `json:"signal"`

	// processName is process name, sends unix signal to proc.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	ProcessName string `json:"processName"`
}

type UpdateStrategy string

type UpdatedParameters struct {
	// addedKeys describes the key added.
	// +optional
	AddedKeys map[string]string `json:"addedKeys,omitempty"`

	// deletedKeys describes the key deleted.
	// +optional
	DeletedKeys map[string]string `json:"deletedKeys,omitempty"`

	// updatedKeys describes the key updated.
	// +optional
	UpdatedKeys map[string]string `json:"updatedKeys,omitempty"`
}

type Upgrade struct {
	// clusterVersionRef references ClusterVersion name.
	// +kubebuilder:validation:Required
	ClusterVersionRef string `json:"clusterVersionRef"`
}

type UpgradePolicy string

type VersionsContext struct {
	// Provide ClusterDefinition.spec.componentDefs.podSpec.initContainers override
	// values, typical scenarios are application container image updates.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +patchMergeKey=name
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=name
	// +optional
	InitContainers []corev1.Container `json:"initContainers,omitempty"`

	// Provide ClusterDefinition.spec.componentDefs.podSpec.containers override
	// values, typical scenarios are application container image updates.
	// +kubebuilder:pruning:PreserveUnknownFields
	// +patchMergeKey=name
	// +patchStrategy=merge
	// +listType=map
	// +listMapKey=name
	// +optional
	Containers []corev1.Container `json:"containers,omitempty"`
}

type VerticalScaling struct {
	ComponentOps `json:",inline"`

	// resources specifies the computing resource size of verticalScaling.
	// +kubebuilder:pruning:PreserveUnknownFields
	corev1.ResourceRequirements `json:",inline"`

	// class specifies the class name of the component
	// +optional
	Class string `json:"class,omitempty"`
}

type VolumeExpansion struct {
	ComponentOps `json:",inline"`

	// volumeClaimTemplates specifies the storage size and volumeClaimTemplate name.
	// +kubebuilder:validation:Required
	// +patchMergeKey=name
	// +patchStrategy=merge,retainKeys
	// +listType=map
	// +listMapKey=name
	VolumeClaimTemplates []OpsRequestVolumeClaimTemplate `json:"volumeClaimTemplates" patchStrategy:"merge,retainKeys" patchMergeKey:"name"`
}

type VolumeType string

type VolumeTypeSpec struct {
	// name definition is the same as the name of the VolumeMounts field in PodSpec.Container,
	// similar to the relations of Volumes[*].name and VolumesMounts[*].name in Pod.Spec.
	// +kubebuilder:validation:Required
	// +kubebuilder:validation:Pattern:=`^[a-z0-9]([a-z0-9\.\-]*[a-z0-9])?$`
	Name string `json:"name"`

	// type is in enum of {data, log}.
	// VolumeTypeData: the volume is for the persistent data storage.
	// VolumeTypeLog: the volume is for the persistent log storage.
	// +optional
	Type VolumeType `json:"type,omitempty"`
}

type WorkloadType string