Description

/ [MachineSet] MachineSet ensures that a specified number of machines replicas are running at any given time.

Type

object

Specification

Property Type Description

.apiVersion

string

APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal value, and may reject unrecognized values. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#resources

.kind

string

Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

.metadata

ObjectMeta meta/v1

Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#metadata

.spec

object

/ [MachineSetSpec] MachineSetSpec defines the desired state of MachineSet

.status

object

/ [MachineSetStatus] MachineSetStatus defines the observed state of MachineSet

.spec
Description

/ [MachineSetSpec] MachineSetSpec defines the desired state of MachineSet

Type

object

Required
  • selector

Property Type Description

deletePolicy

string

DeletePolicy defines the policy used to identify nodes to delete when downscaling. Defaults to "Random". Valid values are "Random, "Newest", "Oldest"

minReadySeconds

integer

MinReadySeconds is the minimum number of seconds for which a newly created machine should be ready. Defaults to 0 (machine will be considered available as soon as it is ready)

replicas

integer

Replicas is the number of desired replicas. This is a pointer to distinguish between explicit zero and unspecified. Defaults to 1.

selector

object

Selector is a label query over machines that should match the replica count. Label keys and values that must match in order to be controlled by this MachineSet. It must match the machine template’s labels. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors

template

object

Template is the object that describes the machine that will be created if insufficient replicas are detected.

.spec.selector
Description

Selector is a label query over machines that should match the replica count. Label keys and values that must match in order to be controlled by this MachineSet. It must match the machine template's labels. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/#label-selectors

Type

object

Property Type Description

matchExpressions

array

matchExpressions is a list of label selector requirements. The requirements are ANDed.

matchExpressions[]

object

A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.

matchLabels

object (string)

matchLabels is a map of {key,value} pairs. A single {key,value} in the matchLabels map is equivalent to an element of matchExpressions, whose key field is "key", the operator is "In", and the values array contains only "value". The requirements are ANDed.

.spec.selector.matchExpressions
Description

matchExpressions is a list of label selector requirements. The requirements are ANDed.

Type

array

.spec.selector.matchExpressions[]
Description

A label selector requirement is a selector that contains values, a key, and an operator that relates the key and values.

Type

object

Required
  • key

  • operator

Property Type Description

key

string

key is the label key that the selector applies to.

operator

string

operator represents a key’s relationship to a set of values. Valid operators are In, NotIn, Exists and DoesNotExist.

values

array (string)

values is an array of string values. If the operator is In or NotIn, the values array must be non-empty. If the operator is Exists or DoesNotExist, the values array must be empty. This array is replaced during a strategic merge patch.

.spec.template
Description

Template is the object that describes the machine that will be created if insufficient replicas are detected.

Type

object

Property Type Description

metadata

object

Standard object’s metadata. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata

spec

object

Specification of the desired behavior of the machine. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#spec-and-status

.spec.template.metadata
Description

Standard object's metadata. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#metadata

Type

object

Property Type Description

annotations

object (string)

Annotations is an unstructured key value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects. More info: http://kubernetes.io/docs/user-guide/annotations

generateName

string

GenerateName is an optional prefix, used by the server, to generate a unique name ONLY IF the Name field has not been provided. If this field is used, the name returned to the client will be different than the name passed. This value will also be combined with a unique suffix. The provided value has the same validation rules as the Name field, and may be truncated by the length of the suffix required to make the value unique on the server. If this field is specified and the generated name exists, the server will NOT return a 409 - instead, it will either return 201 Created or 500 with Reason ServerTimeout indicating a unique name could not be found in the time allotted, and the client should retry (optionally after the time indicated in the Retry-After header). Applied only if Name is not specified. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#idempotency

labels

object (string)

Map of string keys and values that can be used to organize and categorize (scope and select) objects. May match selectors of replication controllers and services. More info: http://kubernetes.io/docs/user-guide/labels

name

string

Name must be unique within a namespace. Is required when creating resources, although some resources may allow a client to request the generation of an appropriate name automatically. Name is primarily intended for creation idempotence and configuration definition. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/identifiers#names

namespace

string

Namespace defines the space within each name must be unique. An empty namespace is equivalent to the "default" namespace, but "default" is the canonical representation. Not all objects are required to be scoped to a namespace - the value of this field for those objects will be empty. Must be a DNS_LABEL. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/namespaces

ownerReferences

array

List of objects depended by this object. If ALL objects in the list have been deleted, this object will be garbage collected. If this object is managed by a controller, then an entry in this list will point to this controller, with the controller field set to true. There cannot be more than one managing controller.

ownerReferences[]

object

OwnerReference contains enough information to let you identify an owning object. An owning object must be in the same namespace as the dependent, or be cluster-scoped, so there is no namespace field.

.spec.template.metadata.ownerReferences
Description

List of objects depended by this object. If ALL objects in the list have been deleted, this object will be garbage collected. If this object is managed by a controller, then an entry in this list will point to this controller, with the controller field set to true. There cannot be more than one managing controller.

Type

array

.spec.template.metadata.ownerReferences[]
Description

OwnerReference contains enough information to let you identify an owning object. An owning object must be in the same namespace as the dependent, or be cluster-scoped, so there is no namespace field.

Type

object

Required
  • apiVersion

  • kind

  • name

  • uid

Property Type Description

apiVersion

string

API version of the referent.

blockOwnerDeletion

boolean

If true, AND if the owner has the "foregroundDeletion" finalizer, then the owner cannot be deleted from the key-value store until this reference is removed. Defaults to false. To set this field, a user needs "delete" permission of the owner, otherwise 422 (Unprocessable Entity) will be returned.

controller

boolean

If true, this reference points to the managing controller.

kind

string

Kind of the referent. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

name

string

Name of the referent. More info: http://kubernetes.io/docs/user-guide/identifiers#names

uid

string

UID of the referent. More info: http://kubernetes.io/docs/user-guide/identifiers#uids

.spec.template.spec
Description

Specification of the desired behavior of the machine. More info: https://git.k8s.io/community/contributors/devel/api-conventions.md#spec-and-status

Type

object

Property Type Description

metadata

object

ObjectMeta will autopopulate the Node created. Use this to indicate what labels, annotations, name prefix, etc., should be used when creating the Node.

providerID

string

ProviderID is the identification ID of the machine provided by the provider. This field must match the provider ID as seen on the node object corresponding to this machine. This field is required by higher level consumers of cluster-api. Example use case is cluster autoscaler with cluster-api as provider. Clean-up logic in the autoscaler compares machines to nodes to find out machines at provider which could not get registered as Kubernetes nodes. With cluster-api as a generic out-of-tree provider for autoscaler, this field is required by autoscaler to be able to have a provider view of the list of machines. Another list of nodes is queried from the k8s apiserver and then a comparison is done to find out unregistered machines and are marked for delete. This field will be set by the actuators and consumed by higher level entities like autoscaler that will be interfacing with cluster-api as generic provider.

providerSpec

object

ProviderSpec details Provider-specific configuration to use during node creation.

taints

array

The list of the taints to be applied to the corresponding Node in additive manner. This list will not overwrite any other taints added to the Node on an ongoing basis by other entities. These taints should be actively reconciled e.g. if you ask the machine controller to apply a taint and then manually remove the taint the machine controller will put it back) but not have the machine controller remove any taints

taints[]

object

The node this Taint is attached to has the "effect" on any pod that does not tolerate the Taint.

.spec.template.spec.metadata
Description

ObjectMeta will autopopulate the Node created. Use this to indicate what labels, annotations, name prefix, etc., should be used when creating the Node.

Type

object

Property Type Description

annotations

object (string)

Annotations is an unstructured key value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects. More info: http://kubernetes.io/docs/user-guide/annotations

generateName

string

GenerateName is an optional prefix, used by the server, to generate a unique name ONLY IF the Name field has not been provided. If this field is used, the name returned to the client will be different than the name passed. This value will also be combined with a unique suffix. The provided value has the same validation rules as the Name field, and may be truncated by the length of the suffix required to make the value unique on the server. If this field is specified and the generated name exists, the server will NOT return a 409 - instead, it will either return 201 Created or 500 with Reason ServerTimeout indicating a unique name could not be found in the time allotted, and the client should retry (optionally after the time indicated in the Retry-After header). Applied only if Name is not specified. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#idempotency

labels

object (string)

Map of string keys and values that can be used to organize and categorize (scope and select) objects. May match selectors of replication controllers and services. More info: http://kubernetes.io/docs/user-guide/labels

name

string

Name must be unique within a namespace. Is required when creating resources, although some resources may allow a client to request the generation of an appropriate name automatically. Name is primarily intended for creation idempotence and configuration definition. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/identifiers#names

namespace

string

Namespace defines the space within each name must be unique. An empty namespace is equivalent to the "default" namespace, but "default" is the canonical representation. Not all objects are required to be scoped to a namespace - the value of this field for those objects will be empty. Must be a DNS_LABEL. Cannot be updated. More info: http://kubernetes.io/docs/user-guide/namespaces

ownerReferences

array

List of objects depended by this object. If ALL objects in the list have been deleted, this object will be garbage collected. If this object is managed by a controller, then an entry in this list will point to this controller, with the controller field set to true. There cannot be more than one managing controller.

ownerReferences[]

object

OwnerReference contains enough information to let you identify an owning object. An owning object must be in the same namespace as the dependent, or be cluster-scoped, so there is no namespace field.

.spec.template.spec.metadata.ownerReferences
Description

List of objects depended by this object. If ALL objects in the list have been deleted, this object will be garbage collected. If this object is managed by a controller, then an entry in this list will point to this controller, with the controller field set to true. There cannot be more than one managing controller.

Type

array

.spec.template.spec.metadata.ownerReferences[]
Description

OwnerReference contains enough information to let you identify an owning object. An owning object must be in the same namespace as the dependent, or be cluster-scoped, so there is no namespace field.

Type

object

Required
  • apiVersion

  • kind

  • name

  • uid

Property Type Description

apiVersion

string

API version of the referent.

blockOwnerDeletion

boolean

If true, AND if the owner has the "foregroundDeletion" finalizer, then the owner cannot be deleted from the key-value store until this reference is removed. Defaults to false. To set this field, a user needs "delete" permission of the owner, otherwise 422 (Unprocessable Entity) will be returned.

controller

boolean

If true, this reference points to the managing controller.

kind

string

Kind of the referent. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds

name

string

Name of the referent. More info: http://kubernetes.io/docs/user-guide/identifiers#names

uid

string

UID of the referent. More info: http://kubernetes.io/docs/user-guide/identifiers#uids

.spec.template.spec.providerSpec
Description

ProviderSpec details Provider-specific configuration to use during node creation.

Type

object

Property Type Description

value

object

Value is an inlined, serialized representation of the resource configuration. It is recommended that providers maintain their own versioned API types that should be serialized/deserialized from this field, akin to component config.

.spec.template.spec.providerSpec.value
Description

Value is an inlined, serialized representation of the resource configuration. It is recommended that providers maintain their own versioned API types that should be serialized/deserialized from this field, akin to component config.

Type

object

.spec.template.spec.taints
Description

The list of the taints to be applied to the corresponding Node in additive manner. This list will not overwrite any other taints added to the Node on an ongoing basis by other entities. These taints should be actively reconciled e.g. if you ask the machine controller to apply a taint and then manually remove the taint the machine controller will put it back) but not have the machine controller remove any taints

Type

array

.spec.template.spec.taints[]
Description

The node this Taint is attached to has the "effect" on any pod that does not tolerate the Taint.

Type

object

Required
  • effect

  • key

Property Type Description

effect

string

Required. The effect of the taint on pods that do not tolerate the taint. Valid effects are NoSchedule, PreferNoSchedule and NoExecute.

key

string

Required. The taint key to be applied to a node.

timeAdded

string

TimeAdded represents the time at which the taint was added. It is only written for NoExecute taints.

value

string

The taint value corresponding to the taint key.

.status
Description

/ [MachineSetStatus] MachineSetStatus defines the observed state of MachineSet

Type

object

Required
  • replicas

Property Type Description

availableReplicas

integer

The number of available replicas (ready for at least minReadySeconds) for this MachineSet.

errorMessage

string

errorReason

string

In the event that there is a terminal problem reconciling the replicas, both ErrorReason and ErrorMessage will be set. ErrorReason will be populated with a succinct value suitable for machine interpretation, while ErrorMessage will contain a more verbose string suitable for logging and human consumption. These fields should not be set for transitive errors that a controller faces that are expected to be fixed automatically over time (like service outages), but instead indicate that something is fundamentally wrong with the MachineTemplate’s spec or the configuration of the machine controller, and that manual intervention is required. Examples of terminal errors would be invalid combinations of settings in the spec, values that are unsupported by the machine controller, or the responsible machine controller itself being critically misconfigured. Any transient errors that occur during the reconciliation of Machines can be added as events to the MachineSet object and/or logged in the controller’s output.

fullyLabeledReplicas

integer

The number of replicas that have labels matching the labels of the machine template of the MachineSet.

observedGeneration

integer

ObservedGeneration reflects the generation of the most recently observed MachineSet.

readyReplicas

integer

The number of ready replicas for this MachineSet. A machine is considered ready when the node has been created and is "Ready".

replicas

integer

Replicas is the most recently observed number of replicas.