ReplicaSet apps/v1

ReplicaSet ensures that a specified number of pod replicas are running at any given time.

Fields

apiVersion: apps/v1
kind: ReplicaSet
metadata (ObjectMeta): If the Labels of a ReplicaSet are empty, they are defaulted to be the same as the Pod(s) that the ReplicaSet manages. Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata
spec (ReplicaSetSpec): Spec defines the specification of the desired behavior of the ReplicaSet. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status
status (ReplicaSetStatus): Status is the most recently observed status of the ReplicaSet. This data may be out of date by some window of time. Populated by the system. Read-only. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#spec-and-status

ReplicaSetSpec

ReplicaSetSpec is the specification of a ReplicaSet.

selector (LabelSelector): Selector is a label query over pods that should match the replica count. Label keys and values that must match in order to be controlled by this replica set. It must match the pod template's labels. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors
minReadySeconds (integer): Minimum number of seconds for which a newly created pod should be ready without any of its container crashing, for it to be considered available. Defaults to 0 (pod will be considered available as soon as it is ready)
replicas (integer): Replicas is the number of desired pods. This is a pointer to distinguish between explicit zero and unspecified. Defaults to 1. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicaset
template (PodTemplateSpec): Template is the object that describes the pod that will be created if insufficient replicas are detected. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicaset/#pod-template

ReplicaSetStatus

ReplicaSetStatus represents the current status of a ReplicaSet.

replicas (integer)

Replicas is the most recently observed number of non-terminating pods. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicaset

availableReplicas (integer)

The number of available non-terminating pods (ready for at least minReadySeconds) for this replica set.

conditions ([]ReplicaSetCondition)

Represents the latest available observations of a replica set's current state.

fullyLabeledReplicas (integer)

The number of non-terminating pods that have labels matching the labels of the pod template of the replicaset.

observedGeneration (integer)

ObservedGeneration reflects the generation of the most recently observed ReplicaSet.

readyReplicas (integer)

The number of non-terminating pods targeted by this ReplicaSet with a Ready Condition.

terminatingReplicas (integer)

The number of terminating pods for this replica set. Terminating pods have a non-null .metadata.deletionTimestamp and have not yet reached the Failed or Succeeded .status.phase.

This is a beta field and requires enabling DeploymentReplicaSetTerminatingReplicas feature (enabled by default).

ReplicaSetCondition

ReplicaSetCondition describes the state of a replica set at a certain point.

status (string): Status of the condition, one of True, False, Unknown.
type (string): Type of replica set condition.
lastTransitionTime (Time): The last time the condition transitioned from one status to another.
message (string): A human readable message indicating details about the transition.
reason (string): The reason for the condition's last transition.

ReplicaSetList

ReplicaSetList is a collection of ReplicaSets.

apiVersion: apps/v1
kind: ReplicaSetList
metadata (ListMeta): Standard list metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
items ([]ReplicaSet): List of ReplicaSets. More info: https://kubernetes.io/docs/concepts/workloads/controllers/replicaset