#Cluster [cluster.x-k8s.io/v1beta1]

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 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

ObjectMeta is metadata that all persisted resources must have, which includes all objects users must create.

spec is the desired state of Cluster.

status is the observed state of Cluster.

availabilityGates specifies additional conditions to include when evaluating Cluster Available condition.

If this field is not defined and the Cluster implements a managed topology, availabilityGates from the corresponding ClusterClass will be used, if any.

NOTE: this field is considered only for computing v1beta2 conditions.

clusterNetwork represents the cluster network configuration.

controlPlaneEndpoint represents the endpoint used to communicate with the control plane.

controlPlaneRef is an optional reference to a provider-specific resource that holds the details for provisioning the Control Plane for a Cluster.

infrastructureRef is a reference to a provider-specific resource that holds the details for provisioning infrastructure for a cluster in said provider.

paused can be used to prevent controllers from processing the Cluster and all its associated objects.

topology encapsulates the topology for the cluster. NOTE: It is required to enable the ClusterTopology feature gate flag to activate managed topologies support; this feature is highly experimental, and parts of it might still be not implemented.

conditionType refers to a condition with matching type in the Cluster's condition list. If the conditions doesn't exist, it will be treated as unknown. Note: Both Cluster API conditions or conditions added by 3rd party controllers can be used as availability gates.

polarity of the conditionType specified in this availabilityGate. Valid values are Positive, Negative and omitted. When omitted, the default behaviour will be Positive. A positive polarity means that the condition should report a true status under normal conditions. A negative polarity means that the condition should report a false status under normal conditions.

apiServerPort specifies the port the API Server should bind to. Defaults to 6443.

pods is the network ranges from which Pod networks are allocated.

serviceDomain is the domain name for services.

services is the network ranges from which service VIPs are allocated.

cidrBlocks is a list of CIDR blocks.

cidrBlocks is a list of CIDR blocks.

host is the hostname on which the API server is serving.

port is the port on which the API server is serving.

API version of the referent.

If referring to a piece of an object instead of an entire object, this string should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2]. For example, if the object reference is to a container within a pod, this would take on a value like: "spec.containers{name}" (where "name" refers to the name of the container that triggered the event) or if no container name is specified "spec.containers[2]" (container with index 2 in this pod). This syntax is chosen only to have some well-defined way of referencing a part of an object.

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

Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names

Namespace of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

Specific resourceVersion to which this reference is made, if any. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency

UID of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids

API version of the referent.

If referring to a piece of an object instead of an entire object, this string should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2]. For example, if the object reference is to a container within a pod, this would take on a value like: "spec.containers{name}" (where "name" refers to the name of the container that triggered the event) or if no container name is specified "spec.containers[2]" (container with index 2 in this pod). This syntax is chosen only to have some well-defined way of referencing a part of an object.

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

Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names

Namespace of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

Specific resourceVersion to which this reference is made, if any. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency

UID of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids

class is the name of the ClusterClass object to create the topology.

classNamespace is the namespace of the ClusterClass that should be used for the topology. If classNamespace is empty or not set, it is defaulted to the namespace of the Cluster object. classNamespace must be a valid namespace name and because of that be at most 63 characters in length and it must consist only of lower case alphanumeric characters or hyphens (-), and must start and end with an alphanumeric character.

controlPlane describes the cluster control plane.

rolloutAfter performs a rollout of the entire cluster one component at a time, control plane first and then machine deployments.

Deprecated: This field has no function and is going to be removed in the next apiVersion.

variables can be used to customize the Cluster through patches. They must comply to the corresponding VariableClasses defined in the ClusterClass.

version is the Kubernetes version of the cluster.

workers encapsulates the different constructs that form the worker nodes for the cluster.

machineHealthCheck allows to enable, disable and override the MachineHealthCheck configuration in the ClusterClass for this control plane.

metadata is the metadata applied to the ControlPlane and the Machines of the ControlPlane if the ControlPlaneTemplate referenced by the ClusterClass is machine based. If not, it is applied only to the ControlPlane. At runtime this metadata is merged with the corresponding metadata from the ClusterClass.

nodeDeletionTimeout defines how long the controller will attempt to delete the Node that the Machine hosts after the Machine is marked for deletion. A duration of 0 will retry deletion indefinitely. Defaults to 10 seconds.

nodeDrainTimeout is the total amount of time that the controller will spend on draining a node. The default value is 0, meaning that the node can be drained without any time limitations. NOTE: NodeDrainTimeout is different from kubectl drain --timeout

nodeVolumeDetachTimeout is the total amount of time that the controller will spend on waiting for all volumes to be detached. The default value is 0, meaning that the volumes can be detached without any time limitations.

readinessGates specifies additional conditions to include when evaluating Machine Ready condition.

This field can be used e.g. to instruct the machine controller to include in the computation for Machine's ready computation a condition, managed by an external controllers, reporting the status of special software/hardware installed on the Machine.

If this field is not defined, readinessGates from the corresponding ControlPlaneClass will be used, if any.

NOTE: This field is considered only for computing v1beta2 conditions. NOTE: Specific control plane provider implementations might automatically extend the list of readinessGates; e.g. the kubeadm control provider adds ReadinessGates for the APIServerPodHealthy, SchedulerPodHealthy conditions, etc.

replicas is the number of control plane nodes. If the value is nil, the ControlPlane object is created without the number of Replicas and it's assumed that the control plane controller does not implement support for this field. When specified against a control plane provider that lacks support for this field, this value will be ignored.

variables can be used to customize the ControlPlane through patches.

enable controls if a MachineHealthCheck should be created for the target machines.

If false: No MachineHealthCheck will be created.

If not set(default): A MachineHealthCheck will be created if it is defined here or in the associated ClusterClass. If no MachineHealthCheck is defined then none will be created.

If true: A MachineHealthCheck is guaranteed to be created. Cluster validation will block if enable is true and no MachineHealthCheck definition is available.

maxUnhealthy specifies the maximum number of unhealthy machines allowed. Any further remediation is only allowed if at most "maxUnhealthy" machines selected by "selector" are not healthy.

nodeStartupTimeout allows to set the maximum time for MachineHealthCheck to consider a Machine unhealthy if a corresponding Node isn't associated through a Spec.ProviderID field.

The duration set in this field is compared to the greatest of:

• Cluster's infrastructure ready condition timestamp (if and when available)
• Control Plane's initialized condition timestamp (if and when available)
• Machine's infrastructure ready condition timestamp (if and when available)
• Machine's metadata creation timestamp

Defaults to 10 minutes. If you wish to disable this feature, set the value explicitly to 0.

remediationTemplate is a reference to a remediation template provided by an infrastructure provider.

This field is completely optional, when filled, the MachineHealthCheck controller creates a new object from the template referenced and hands off remediation of the machine to a controller that lives outside of Cluster API.

unhealthyConditions contains a list of the conditions that determine whether a node is considered unhealthy. The conditions are combined in a logical OR, i.e. if any of the conditions is met, the node is unhealthy.

unhealthyRange specifies the range of unhealthy machines allowed. Any further remediation is only allowed if the number of machines selected by "selector" as not healthy is within the range of "unhealthyRange". Takes precedence over maxUnhealthy. Eg. "[3-5]" - This means that remediation will be allowed only when: (a) there are at least 3 unhealthy machines (and) (b) there are at most 5 unhealthy machines

API version of the referent.

If referring to a piece of an object instead of an entire object, this string should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2]. For example, if the object reference is to a container within a pod, this would take on a value like: "spec.containers{name}" (where "name" refers to the name of the container that triggered the event) or if no container name is specified "spec.containers[2]" (container with index 2 in this pod). This syntax is chosen only to have some well-defined way of referencing a part of an object.

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

Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names

Namespace of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

Specific resourceVersion to which this reference is made, if any. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency

UID of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids

status of the condition, one of True, False, Unknown.

timeout is the duration that a node must be in a given status for, after which the node is considered unhealthy. For example, with a value of "1h", the node must match the status for at least 1 hour before being considered unhealthy.

type of Node condition

conditionType refers to a condition with matching type in the Machine's condition list. If the conditions doesn't exist, it will be treated as unknown. Note: Both Cluster API conditions or conditions added by 3rd party controllers can be used as readiness gates.

polarity of the conditionType specified in this readinessGate. Valid values are Positive, Negative and omitted. When omitted, the default behaviour will be Positive. A positive polarity means that the condition should report a true status under normal conditions. A negative polarity means that the condition should report a false status under normal conditions.

overrides can be used to override Cluster level variables.

definitionFrom specifies where the definition of this Variable is from.

Deprecated: This field is deprecated, must not be set anymore and is going to be removed in the next apiVersion.

name of the variable.

value of the variable. Note: the value will be validated against the schema of the corresponding ClusterClassVariable from the ClusterClass. Note: We have to use apiextensionsv1.JSON instead of a custom JSON type, because controller-tools has a hard-coded schema for apiextensionsv1.JSON which cannot be produced by another type via controller-tools, i.e. it is not possible to have no type field. Ref: https://github.com/kubernetes-sigs/controller-tools/blob/d0e03a142d0ecdd5491593e941ee1d6b5d91dba6/pkg/crd/known_types.go#L106-L111

definitionFrom specifies where the definition of this Variable is from.

Deprecated: This field is deprecated, must not be set anymore and is going to be removed in the next apiVersion.

name of the variable.

value of the variable. Note: the value will be validated against the schema of the corresponding ClusterClassVariable from the ClusterClass. Note: We have to use apiextensionsv1.JSON instead of a custom JSON type, because controller-tools has a hard-coded schema for apiextensionsv1.JSON which cannot be produced by another type via controller-tools, i.e. it is not possible to have no type field. Ref: https://github.com/kubernetes-sigs/controller-tools/blob/d0e03a142d0ecdd5491593e941ee1d6b5d91dba6/pkg/crd/known_types.go#L106-L111

machineDeployments is a list of machine deployments in the cluster.

machinePools is a list of machine pools in the cluster.

class is the name of the MachineDeploymentClass used to create the set of worker nodes. This should match one of the deployment classes defined in the ClusterClass object mentioned in the Cluster.Spec.Class field.

failureDomain is the failure domain the machines will be created in. Must match a key in the FailureDomains map stored on the cluster object.

machineHealthCheck allows to enable, disable and override the MachineHealthCheck configuration in the ClusterClass for this MachineDeployment.

metadata is the metadata applied to the MachineDeployment and the machines of the MachineDeployment. At runtime this metadata is merged with the corresponding metadata from the ClusterClass.

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)

name is the unique identifier for this MachineDeploymentTopology. The value is used with other unique identifiers to create a MachineDeployment's Name (e.g. cluster's name, etc). In case the name is greater than the allowed maximum length, the values are hashed together.

nodeDeletionTimeout defines how long the controller will attempt to delete the Node that the Machine hosts after the Machine is marked for deletion. A duration of 0 will retry deletion indefinitely. Defaults to 10 seconds.

nodeDrainTimeout is the total amount of time that the controller will spend on draining a node. The default value is 0, meaning that the node can be drained without any time limitations. NOTE: NodeDrainTimeout is different from kubectl drain --timeout

nodeVolumeDetachTimeout is the total amount of time that the controller will spend on waiting for all volumes to be detached. The default value is 0, meaning that the volumes can be detached without any time limitations.

readinessGates specifies additional conditions to include when evaluating Machine Ready condition.

This field can be used e.g. to instruct the machine controller to include in the computation for Machine's ready computation a condition, managed by an external controllers, reporting the status of special software/hardware installed on the Machine.

If this field is not defined, readinessGates from the corresponding MachineDeploymentClass will be used, if any.

NOTE: This field is considered only for computing v1beta2 conditions.

replicas is the number of worker nodes belonging to this set. If the value is nil, the MachineDeployment is created without the number of Replicas (defaulting to 1) and it's assumed that an external entity (like cluster autoscaler) is responsible for the management of this value.

strategy is the deployment strategy to use to replace existing machines with new ones.

variables can be used to customize the MachineDeployment through patches.

enable controls if a MachineHealthCheck should be created for the target machines.

If false: No MachineHealthCheck will be created.

If not set(default): A MachineHealthCheck will be created if it is defined here or in the associated ClusterClass. If no MachineHealthCheck is defined then none will be created.

If true: A MachineHealthCheck is guaranteed to be created. Cluster validation will block if enable is true and no MachineHealthCheck definition is available.

maxUnhealthy specifies the maximum number of unhealthy machines allowed. Any further remediation is only allowed if at most "maxUnhealthy" machines selected by "selector" are not healthy.

nodeStartupTimeout allows to set the maximum time for MachineHealthCheck to consider a Machine unhealthy if a corresponding Node isn't associated through a Spec.ProviderID field.

The duration set in this field is compared to the greatest of:

• Cluster's infrastructure ready condition timestamp (if and when available)
• Control Plane's initialized condition timestamp (if and when available)
• Machine's infrastructure ready condition timestamp (if and when available)
• Machine's metadata creation timestamp

Defaults to 10 minutes. If you wish to disable this feature, set the value explicitly to 0.

remediationTemplate is a reference to a remediation template provided by an infrastructure provider.

This field is completely optional, when filled, the MachineHealthCheck controller creates a new object from the template referenced and hands off remediation of the machine to a controller that lives outside of Cluster API.

unhealthyConditions contains a list of the conditions that determine whether a node is considered unhealthy. The conditions are combined in a logical OR, i.e. if any of the conditions is met, the node is unhealthy.

unhealthyRange specifies the range of unhealthy machines allowed. Any further remediation is only allowed if the number of machines selected by "selector" as not healthy is within the range of "unhealthyRange". Takes precedence over maxUnhealthy. Eg. "[3-5]" - This means that remediation will be allowed only when: (a) there are at least 3 unhealthy machines (and) (b) there are at most 5 unhealthy machines

API version of the referent.

If referring to a piece of an object instead of an entire object, this string should contain a valid JSON/Go field access statement, such as desiredState.manifest.containers[2]. For example, if the object reference is to a container within a pod, this would take on a value like: "spec.containers{name}" (where "name" refers to the name of the container that triggered the event) or if no container name is specified "spec.containers[2]" (container with index 2 in this pod). This syntax is chosen only to have some well-defined way of referencing a part of an object.

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

Name of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#names

Namespace of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/namespaces/

Specific resourceVersion to which this reference is made, if any. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#concurrency-control-and-consistency

UID of the referent. More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names/#uids

status of the condition, one of True, False, Unknown.

timeout is the duration that a node must be in a given status for, after which the node is considered unhealthy. For example, with a value of "1h", the node must match the status for at least 1 hour before being considered unhealthy.

type of Node condition

conditionType refers to a condition with matching type in the Machine's condition list. If the conditions doesn't exist, it will be treated as unknown. Note: Both Cluster API conditions or conditions added by 3rd party controllers can be used as readiness gates.

polarity of the conditionType specified in this readinessGate. Valid values are Positive, Negative and omitted. When omitted, the default behaviour will be Positive. A positive polarity means that the condition should report a true status under normal conditions. A negative polarity means that the condition should report a false status under normal conditions.

remediation controls the strategy of remediating unhealthy machines and how remediating operations should occur during the lifecycle of the dependant MachineSets.

rollingUpdate is the rolling update config params. Present only if MachineDeploymentStrategyType = RollingUpdate.

type of deployment. Allowed values are RollingUpdate and OnDelete. The default is RollingUpdate.

maxInFlight determines how many in flight remediations should happen at the same time.

Remediation only happens on the MachineSet with the most current revision, while older MachineSets (usually present during rollout operations) aren't allowed to remediate.

Note: In general (independent of remediations), unhealthy machines are always prioritized during scale down operations over healthy ones.

MaxInFlight can be set to a fixed number or a percentage. Example: when this is set to 20%, the MachineSet controller deletes at most 20% of the desired replicas.

If not set, remediation is limited to all machines (bounded by replicas) under the active MachineSet's management.

deletePolicy defines the policy used by the MachineDeployment to identify nodes to delete when downscaling. Valid values are "Random", "Newest", "Oldest" When no value is supplied, the default DeletePolicy of MachineSet is used

maxSurge is the maximum number of machines that can be scheduled above the desired number of machines. Value can be an absolute number (ex: 5) or a percentage of desired machines (ex: 10%). This can not be 0 if MaxUnavailable is 0. Absolute number is calculated from percentage by rounding up. Defaults to 1. Example: when this is set to 30%, the new MachineSet can be scaled up immediately when the rolling update starts, such that the total number of old and new machines do not exceed 130% of desired machines. Once old machines have been killed, new MachineSet can be scaled up further, ensuring that total number of machines running at any time during the update is at most 130% of desired machines.

maxUnavailable is the maximum number of machines that can be unavailable during the update. Value can be an absolute number (ex: 5) or a percentage of desired machines (ex: 10%). Absolute number is calculated from percentage by rounding down. This can not be 0 if MaxSurge is 0. Defaults to 0. Example: when this is set to 30%, the old MachineSet can be scaled down to 70% of desired machines immediately when the rolling update starts. Once new machines are ready, old MachineSet can be scaled down further, followed by scaling up the new MachineSet, ensuring that the total number of machines available at all times during the update is at least 70% of desired machines.

overrides can be used to override Cluster level variables.

definitionFrom specifies where the definition of this Variable is from.

Deprecated: This field is deprecated, must not be set anymore and is going to be removed in the next apiVersion.

name of the variable.

value of the variable. Note: the value will be validated against the schema of the corresponding ClusterClassVariable from the ClusterClass. Note: We have to use apiextensionsv1.JSON instead of a custom JSON type, because controller-tools has a hard-coded schema for apiextensionsv1.JSON which cannot be produced by another type via controller-tools, i.e. it is not possible to have no type field. Ref: https://github.com/kubernetes-sigs/controller-tools/blob/d0e03a142d0ecdd5491593e941ee1d6b5d91dba6/pkg/crd/known_types.go#L106-L111

class is the name of the MachinePoolClass used to create the pool of worker nodes. This should match one of the deployment classes defined in the ClusterClass object mentioned in the Cluster.Spec.Class field.

failureDomains is the list of failure domains the machine pool will be created in. Must match a key in the FailureDomains map stored on the cluster object.

metadata is the metadata applied to the MachinePool. At runtime this metadata is merged with the corresponding metadata from the ClusterClass.

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

name is the unique identifier for this MachinePoolTopology. The value is used with other unique identifiers to create a MachinePool's Name (e.g. cluster's name, etc). In case the name is greater than the allowed maximum length, the values are hashed together.

nodeDeletionTimeout defines how long the controller will attempt to delete the Node that the MachinePool hosts after the MachinePool is marked for deletion. A duration of 0 will retry deletion indefinitely. Defaults to 10 seconds.

nodeDrainTimeout is the total amount of time that the controller will spend on draining a node. The default value is 0, meaning that the node can be drained without any time limitations. NOTE: NodeDrainTimeout is different from kubectl drain --timeout

nodeVolumeDetachTimeout is the total amount of time that the controller will spend on waiting for all volumes to be detached. The default value is 0, meaning that the volumes can be detached without any time limitations.

replicas is the number of nodes belonging to this pool. If the value is nil, the MachinePool is created without the number of Replicas (defaulting to 1) and it's assumed that an external entity (like cluster autoscaler) is responsible for the management of this value.

variables can be used to customize the MachinePool through patches.

overrides can be used to override Cluster level variables.

definitionFrom specifies where the definition of this Variable is from.

Deprecated: This field is deprecated, must not be set anymore and is going to be removed in the next apiVersion.

name of the variable.

value of the variable. Note: the value will be validated against the schema of the corresponding ClusterClassVariable from the ClusterClass. Note: We have to use apiextensionsv1.JSON instead of a custom JSON type, because controller-tools has a hard-coded schema for apiextensionsv1.JSON which cannot be produced by another type via controller-tools, i.e. it is not possible to have no type field. Ref: https://github.com/kubernetes-sigs/controller-tools/blob/d0e03a142d0ecdd5491593e941ee1d6b5d91dba6/pkg/crd/known_types.go#L106-L111

conditions defines current service state of the cluster.

controlPlaneReady denotes if the control plane became ready during initial provisioning to receive requests. NOTE: this field is part of the Cluster API contract and it is used to orchestrate provisioning. The value of this field is never updated after provisioning is completed. Please use conditions to check the operational state of the control plane.

failureDomains is a slice of failure domain objects synced from the infrastructure provider.

failureMessage indicates that there is a fatal problem reconciling the state, and will be set to a descriptive error message.

Deprecated: This field is deprecated and is going to be removed in the next apiVersion. Please see https://github.com/kubernetes-sigs/cluster-api/blob/main/docs/proposals/20240916-improve-status-in-CAPI-resources.md for more details.

failureReason indicates that there is a fatal problem reconciling the state, and will be set to a token value suitable for programmatic interpretation.

Deprecated: This field is deprecated and is going to be removed in the next apiVersion. Please see https://github.com/kubernetes-sigs/cluster-api/blob/main/docs/proposals/20240916-improve-status-in-CAPI-resources.md for more details.

infrastructureReady is the state of the infrastructure provider.

observedGeneration is the latest generation observed by the controller.

phase represents the current phase of cluster actuation.

v1beta2 groups all the fields that will be added or modified in Cluster's status with the V1Beta2 version.

lastTransitionTime is the last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.

message is a human readable message indicating details about the transition. This field may be empty.

reason is the reason for the condition's last transition in CamelCase. The specific API may choose whether or not this field is considered a guaranteed API. This field may be empty.

severity provides an explicit classification of Reason code, so the users or machines can immediately understand the current situation and act accordingly. The Severity field MUST be set only when Status=False.

status of the condition, one of True, False, Unknown.

type of condition in CamelCase or in foo.example.com/CamelCase. Many .condition.type values are consistent across resources like Available, but because arbitrary conditions can be useful (see .node.status.conditions), the ability to deconflict is important.

conditions represents the observations of a Cluster's current state. Known condition types are Available, InfrastructureReady, ControlPlaneInitialized, ControlPlaneAvailable, WorkersAvailable, MachinesReady MachinesUpToDate, RemoteConnectionProbe, ScalingUp, ScalingDown, Remediating, Deleting, Paused. Additionally, a TopologyReconciled condition will be added in case the Cluster is referencing a ClusterClass / defining a managed Topology.

controlPlane groups all the observations about Cluster's ControlPlane current state.

workers groups all the observations about Cluster's Workers current state.

lastTransitionTime is the last time the condition transitioned from one status to another. This should be when the underlying condition changed. If that is not known, then using the time when the API field changed is acceptable.

message is a human readable message indicating details about the transition. This may be an empty string.

observedGeneration represents the .metadata.generation that the condition was set based upon. For instance, if .metadata.generation is currently 12, but the .status.conditions[x].observedGeneration is 9, the condition is out of date with respect to the current state of the instance.

reason contains a programmatic identifier indicating the reason for the condition's last transition. Producers of specific condition types may define expected values and meanings for this field, and whether the values are considered a guaranteed API. The value should be a CamelCase string. This field may not be empty.

status of the condition, one of True, False, Unknown.

type of condition in CamelCase or in foo.example.com/CamelCase.

availableReplicas is the total number of available control plane machines in this cluster. A machine is considered available when Machine's Available condition is true.

desiredReplicas is the total number of desired control plane machines in this cluster.

readyReplicas is the total number of ready control plane machines in this cluster. A machine is considered ready when Machine's Ready condition is true.

replicas is the total number of control plane machines in this cluster. NOTE: replicas also includes machines still being provisioned or being deleted.

upToDateReplicas is the number of up-to-date control plane machines in this cluster. A machine is considered up-to-date when Machine's UpToDate condition is true.

availableReplicas is the total number of available worker machines in this cluster. A machine is considered available when Machine's Available condition is true.

desiredReplicas is the total number of desired worker machines in this cluster.

readyReplicas is the total number of ready worker machines in this cluster. A machine is considered ready when Machine's Ready condition is true.

replicas is the total number of worker machines in this cluster. NOTE: replicas also includes machines still being provisioned or being deleted.

upToDateReplicas is the number of up-to-date worker machines in this cluster. A machine is considered up-to-date when Machine's UpToDate condition is true.