v1alpha1

type ClusterCondition struct {
	// Type of cluster condition.
	Type ClusterConditionType `json:"type"`
	// Status of the condition, one of True, False, Unknown.
	Status v1.ConditionStatus `json:"status"`
	// The last time this condition was updated.
	LastUpdateTime string `json:"lastUpdateTime,omitempty"`
	// Last time the condition transitioned from one status to another.
	LastTransitionTime string `json:"lastTransitionTime,omitempty"`
	// The reason for the condition's last transition.
	Reason string `json:"reason,omitempty"`
	// A human readable message indicating details about the transition.
	Message string `json:"message,omitempty"`
}

type ClusterConditionType string

type ClusterPhase string

type ClusterSpec struct {
	// Size is the expected size of the zookeeper cluster.
	// The zookeeper-operator will eventually make the size of the running
	// cluster equal to the expected size.
	// The valid range of the size is from 1 to infinite
	Size int `json:"size"`
	// Repository is the name of the repository that hosts
	// zookeeper container images. It should be direct clone of the repository in official
	// release:
	//   https://hub.docker.com/_/zookeeper/
	// That means, it should have exact same tags and the same meaning for the tags.
	//
	// By default, it is `zookeeper`.
	Repository string `json:"repository,omitempty"`

	// Version is the expected version of the zookeeper cluster.
	// The zookeeper-operator will eventually make the zookeeper cluster version
	// equal to the expected version.
	//
	// The version must follow the [semver]( http://semver.org) format, for example "3.5.3-beta".
	// Only zookeeper released versions are supported: https://hub.docker.com/blafrisch/zookeeper/
	//
	// If version is not set, default is "3.5.3-beta".
	Version string `json:"version,omitempty"`

	// Paused is to pause the control of the operator for the zookeeper cluster.
	Paused bool `json:"paused,omitempty"`

	// Pod defines the policy to create pod for the zookeeper pod.
	//
	// Updating Pod does not take effect on any existing zookeeper pods.
	Pod *PodPolicy `json:"pod,omitempty"`

	// zookeeper JVM policy
	JVM *JVMPolicy `json:"jvm,omitempty"`
}

type ClusterStatus struct {
	// Phase is the cluster running phase
	Phase  ClusterPhase `json:"phase"`
	Reason string       `json:"reason,omitempty"`

	// ControlPaused indicates the operator pauses the control of the cluster.
	ControlPaused bool `json:"controlPaused,omitempty"`

	// Condition keeps track of all cluster conditions, if they exist.
	Conditions []ClusterCondition `json:"conditions,omitempty"`

	// Size is the current size of the cluster
	Size int `json:"size"`

	// ServiceName is the LB service for accessing zookeeper nodes.
	ServiceName string `json:"serviceName,omitempty"`

	// ClientPort is the port for zookeeper client to access.
	// It's the same on client LB service and zookeeper nodes.
	ClientPort int `json:"clientPort,omitempty"`

	// Members are the zookeeper members in the cluster
	Members MembersStatus `json:"members"`
	// CurrentVersion is the current cluster version
	CurrentVersion string `json:"currentVersion"`
	// TargetVersion is the version the cluster upgrading to.
	// If the cluster is not upgrading, TargetVersion is empty.
	TargetVersion string `json:"targetVersion"`
}

type JVMPolicy struct {
	HeapSizeInMB int `json:"heapSizeInMB"`

	NewGenSizeInMB int `json:"newGenSizeInMB"`

	TunuringThreshold int `json:"tenuringThreshold"`
}

type MembersStatus struct {
	// Ready are the zookeeper members that are ready to serve requests
	// The member names are the same as the zookeeper pod names
	Ready []string `json:"ready,omitempty"`
	// Unready are the zookeeper members not ready to serve requests
	Unready []string `json:"unready,omitempty"`
}

type PodPolicy struct {
	// Labels specifies the labels to attach to pods the operator creates for the
	// zookeeper cluster.
	// "app" and "zookeeper_*" labels are reserved for the internal use of the zookeeper operator.
	// Do not overwrite them.
	Labels map[string]string `json:"labels,omitempty"`

	// NodeSelector specifies a map of key-value pairs. For the pod to be eligible
	// to run on a node, the node must have each of the indicated key-value pairs as
	// labels.
	NodeSelector map[string]string `json:"nodeSelector,omitempty"`

	// The scheduling constraints on zookeeper pods.
	Affinity *v1.Affinity `json:"affinity,omitempty"`
	// **DEPRECATED**. Use Affinity instead.
	AntiAffinity bool `json:"antiAffinity,omitempty"`

	// Resources is the resource requirements for the zookeeper container.
	// This field cannot be updated once the cluster is created.
	Resources v1.ResourceRequirements `json:"resources,omitempty"`

	// Tolerations specifies the pod's tolerations.
	Tolerations []v1.Toleration `json:"tolerations,omitempty"`

	// List of environment variables to set in the zookeeper container.
	// This is used to configure zookeeper process. zookeeper cluster cannot be created, when
	// bad environement variables are provided. Do not overwrite any flags used to
	// bootstrap the cluster (for example `--initial-cluster` flag).
	// This field cannot be updated.
	ZookeeperEnv []v1.EnvVar `json:"zookeeperEnv,omitempty"`

	// PersistentVolumeClaimSpec is the spec to describe PVC for the zookeeper container
	// This field is optional. If no PVC spec, zookeeper container will use emptyDir as volume
	// Note. This feature is in alpha stage. It is currently only used as non-stable storage,
	// not the stable storage. Future work need to make it used as stable storage.
	PersistentVolumeClaimSpec *v1.PersistentVolumeClaimSpec `json:"persistentVolumeClaimSpec,omitempty"`

	// Annotations specifies the annotations to attach to pods the operator creates for the
	// zookeeper cluster.
	// The "zookeeper.version" annotation is reserved for the internal use of the zookeeper operator.
	Annotations map[string]string `json:"annotations,omitempty"`

	// busybox init container image. default is busybox:1.28.0-glibc
	// busybox:latest uses uclibc which contains a bug that sometimes prevents name resolution
	// More info: https://github.com/docker-library/busybox/issues/27
	BusyboxImage string `json:"busyboxImage,omitempty"`
}

type ZookeeperCluster struct {
	metav1.TypeMeta   `json:",inline"`
	metav1.ObjectMeta `json:"metadata,omitempty"`
	Spec              ClusterSpec   `json:"spec"`
	Status            ClusterStatus `json:"status"`
}

type ZookeeperClusterList struct {
	metav1.TypeMeta `json:",inline"`
	// Standard list metadata
	// More info: http://releases.k8s.io/HEAD/docs/devel/api-conventions.md#metadata
	metav1.ListMeta `json:"metadata,omitempty"`
	Items           []ZookeeperCluster `json:"items"`
}