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Specification

ProviderSpec Schema


Machine

Machine is the representation of a physical or virtual machine.

FieldTypeDescription
apiVersionstringmachine.sapcloud.io/v1alpha1
kindstringMachine
metadataKubernetes meta/v1.ObjectMeta

ObjectMeta for machine object

Refer to the Kubernetes API documentation for the fields of the metadata field.
specMachineSpec

Spec contains the specification of the machine



classClassSpec(Optional)

Class contains the machineclass attributes of a machine

providerIDstring(Optional)

ProviderID represents the provider’s unique ID given to a machine

nodeTemplateNodeTemplateSpec(Optional)

NodeTemplateSpec describes the data a node should have when created from a template

MachineConfigurationMachineConfiguration

(Members of MachineConfiguration are embedded into this type.)

(Optional)

Configuration for the machine-controller.

statusMachineStatus

Status contains fields depicting the status


MachineClass

MachineClass can be used to templatize and re-use provider configuration across multiple Machines / MachineSets / MachineDeployments.

FieldTypeDescription
apiVersionstringmachine.sapcloud.io/v1alpha1
kindstringMachineClass
metadataKubernetes meta/v1.ObjectMeta(Optional) Refer to the Kubernetes API documentation for the fields of the metadata field.
nodeTemplateNodeTemplate(Optional)

NodeTemplate contains subfields to track all node resources and other node info required to scale nodegroup from zero

credentialsSecretRefKubernetes core/v1.SecretReference

CredentialsSecretRef can optionally store the credentials (in this case the SecretRef does not need to store them). This might be useful if multiple machine classes with the same credentials but different user-datas are used.

providerSpeck8s.io/apimachinery/pkg/runtime.RawExtension

Provider-specific configuration to use during node creation.

providerstring

Provider is the combination of name and location of cloud-specific drivers.

secretRefKubernetes core/v1.SecretReference

SecretRef stores the necessary secrets such as credentials or userdata.


MachineDeployment

MachineDeployment enables declarative updates for machines and MachineSets.

FieldTypeDescription
apiVersionstringmachine.sapcloud.io/v1alpha1
kindstringMachineDeployment
metadataKubernetes meta/v1.ObjectMeta(Optional)

Standard object metadata.

Refer to the Kubernetes API documentation for the fields of the metadata field.
specMachineDeploymentSpec(Optional)

Specification of the desired behavior of the MachineDeployment.



replicasint32(Optional)

Number of desired machines. This is a pointer to distinguish between explicit zero and not specified. Defaults to 0.

selectorKubernetes meta/v1.LabelSelector(Optional)

Label selector for machines. Existing MachineSets whose machines are selected by this will be the ones affected by this MachineDeployment.

templateMachineTemplateSpec

Template describes the machines that will be created.

strategyMachineDeploymentStrategy(Optional)

The MachineDeployment strategy to use to replace existing machines with new ones.

minReadySecondsint32(Optional)

Minimum number of seconds for which a newly created machine should be ready without any of its container crashing, for it to be considered available. Defaults to 0 (machine will be considered available as soon as it is ready)

revisionHistoryLimit*int32(Optional)

The number of old MachineSets to retain to allow rollback. This is a pointer to distinguish between explicit zero and not specified.

pausedbool(Optional)

Indicates that the MachineDeployment is paused and will not be processed by the MachineDeployment controller.

rollbackToRollbackConfig(Optional)

DEPRECATED. The config this MachineDeployment is rolling back to. Will be cleared after rollback is done.

progressDeadlineSeconds*int32(Optional)

The maximum time in seconds for a MachineDeployment to make progress before it is considered to be failed. The MachineDeployment controller will continue to process failed MachineDeployments and a condition with a ProgressDeadlineExceeded reason will be surfaced in the MachineDeployment status. Note that progress will not be estimated during the time a MachineDeployment is paused. This is not set by default, which is treated as infinite deadline.

statusMachineDeploymentStatus(Optional)

Most recently observed status of the MachineDeployment.


MachineSet

MachineSet TODO

FieldTypeDescription
apiVersionstringmachine.sapcloud.io/v1alpha1
kindstringMachineSet
metadataKubernetes meta/v1.ObjectMeta(Optional) Refer to the Kubernetes API documentation for the fields of the metadata field.
specMachineSetSpec(Optional)

replicasint32(Optional)
selectorKubernetes meta/v1.LabelSelector(Optional)
machineClassClassSpec(Optional)
templateMachineTemplateSpec(Optional)
minReadySecondsint32(Optional)
statusMachineSetStatus(Optional)

ClassSpec

(Appears on: MachineSetSpec, MachineSpec)

ClassSpec is the class specification of machine

FieldTypeDescription
apiGroupstring

API group to which it belongs

kindstring

Kind for machine class

namestring

Name of machine class


ConditionStatus (string alias)

(Appears on: MachineDeploymentCondition, MachineSetCondition)

ConditionStatus are valid condition statuses


CurrentStatus

(Appears on: MachineStatus)

CurrentStatus contains information about the current status of Machine.

FieldTypeDescription
phaseMachinePhase
timeoutActivebool
lastUpdateTimeKubernetes meta/v1.Time

Last update time of current status


LastOperation

(Appears on: MachineSetStatus, MachineStatus, MachineSummary)

LastOperation suggests the last operation performed on the object

FieldTypeDescription
descriptionstring

Description of the current operation

errorCodestring(Optional)

ErrorCode of the current operation if any

lastUpdateTimeKubernetes meta/v1.Time

Last update time of current operation

stateMachineState

State of operation

typeMachineOperationType

Type of operation


MachineConfiguration

(Appears on: MachineSpec)

MachineConfiguration describes the configurations useful for the machine-controller.

FieldTypeDescription
drainTimeoutKubernetes meta/v1.Duration(Optional)

MachineDraintimeout is the timeout after which machine is forcefully deleted.

healthTimeoutKubernetes meta/v1.Duration(Optional)

MachineHealthTimeout is the timeout after which machine is declared unhealhty/failed.

creationTimeoutKubernetes meta/v1.Duration(Optional)

MachineCreationTimeout is the timeout after which machinie creation is declared failed.

maxEvictRetries*int32(Optional)

MaxEvictRetries is the number of retries that will be attempted while draining the node.

nodeConditions*string(Optional)

NodeConditions are the set of conditions if set to true for MachineHealthTimeOut, machine will be declared failed.


MachineDeploymentCondition

(Appears on: MachineDeploymentStatus)

MachineDeploymentCondition describes the state of a MachineDeployment at a certain point.

FieldTypeDescription
typeMachineDeploymentConditionType

Type of MachineDeployment condition.

statusConditionStatus

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

lastUpdateTimeKubernetes meta/v1.Time

The last time this condition was updated.

lastTransitionTimeKubernetes meta/v1.Time

Last time the condition transitioned from one status to another.

reasonstring

The reason for the condition’s last transition.

messagestring

A human readable message indicating details about the transition.


MachineDeploymentConditionType (string alias)

(Appears on: MachineDeploymentCondition)

MachineDeploymentConditionType are valid conditions of MachineDeployments


MachineDeploymentSpec

(Appears on: MachineDeployment)

MachineDeploymentSpec is the specification of the desired behavior of the MachineDeployment.

FieldTypeDescription
replicasint32(Optional)

Number of desired machines. This is a pointer to distinguish between explicit zero and not specified. Defaults to 0.

selectorKubernetes meta/v1.LabelSelector(Optional)

Label selector for machines. Existing MachineSets whose machines are selected by this will be the ones affected by this MachineDeployment.

templateMachineTemplateSpec

Template describes the machines that will be created.

strategyMachineDeploymentStrategy(Optional)

The MachineDeployment strategy to use to replace existing machines with new ones.

minReadySecondsint32(Optional)

Minimum number of seconds for which a newly created machine should be ready without any of its container crashing, for it to be considered available. Defaults to 0 (machine will be considered available as soon as it is ready)

revisionHistoryLimit*int32(Optional)

The number of old MachineSets to retain to allow rollback. This is a pointer to distinguish between explicit zero and not specified.

pausedbool(Optional)

Indicates that the MachineDeployment is paused and will not be processed by the MachineDeployment controller.

rollbackToRollbackConfig(Optional)

DEPRECATED. The config this MachineDeployment is rolling back to. Will be cleared after rollback is done.

progressDeadlineSeconds*int32(Optional)

The maximum time in seconds for a MachineDeployment to make progress before it is considered to be failed. The MachineDeployment controller will continue to process failed MachineDeployments and a condition with a ProgressDeadlineExceeded reason will be surfaced in the MachineDeployment status. Note that progress will not be estimated during the time a MachineDeployment is paused. This is not set by default, which is treated as infinite deadline.


MachineDeploymentStatus

(Appears on: MachineDeployment)

MachineDeploymentStatus is the most recently observed status of the MachineDeployment.

FieldTypeDescription
observedGenerationint64(Optional)

The generation observed by the MachineDeployment controller.

replicasint32(Optional)

Total number of non-terminated machines targeted by this MachineDeployment (their labels match the selector).

updatedReplicasint32(Optional)

Total number of non-terminated machines targeted by this MachineDeployment that have the desired template spec.

readyReplicasint32(Optional)

Total number of ready machines targeted by this MachineDeployment.

availableReplicasint32(Optional)

Total number of available machines (ready for at least minReadySeconds) targeted by this MachineDeployment.

unavailableReplicasint32(Optional)

Total number of unavailable machines targeted by this MachineDeployment. This is the total number of machines that are still required for the MachineDeployment to have 100% available capacity. They may either be machines that are running but not yet available or machines that still have not been created.

conditions[]MachineDeploymentCondition

Represents the latest available observations of a MachineDeployment’s current state.

collisionCount*int32(Optional)

Count of hash collisions for the MachineDeployment. The MachineDeployment controller uses this field as a collision avoidance mechanism when it needs to create the name for the newest MachineSet.

failedMachines[]*github.com/gardener/machine-controller-manager/pkg/apis/machine/v1alpha1.MachineSummary(Optional)

FailedMachines has summary of machines on which lastOperation Failed


MachineDeploymentStrategy

(Appears on: MachineDeploymentSpec)

MachineDeploymentStrategy describes how to replace existing machines with new ones.

FieldTypeDescription
typeMachineDeploymentStrategyType(Optional)

Type of MachineDeployment. Can be “Recreate” or “RollingUpdate”. Default is RollingUpdate.

rollingUpdateRollingUpdateMachineDeployment(Optional)

Rolling update config params. Present only if MachineDeploymentStrategyType =

RollingUpdate.

TODO: Update this to follow our convention for oneOf, whatever we decide it to be.


MachineDeploymentStrategyType (string alias)

(Appears on: MachineDeploymentStrategy)

MachineDeploymentStrategyType are valid strategy types for rolling MachineDeployments


MachineOperationType (string alias)

(Appears on: LastOperation)

MachineOperationType is a label for the operation performed on a machine object.


MachinePhase (string alias)

(Appears on: CurrentStatus)

MachinePhase is a label for the condition of a machine at the current time.


MachineSetCondition

(Appears on: MachineSetStatus)

MachineSetCondition describes the state of a machine set at a certain point.

FieldTypeDescription
typeMachineSetConditionType

Type of machine set condition.

statusConditionStatus

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

lastTransitionTimeKubernetes meta/v1.Time(Optional)

The last time the condition transitioned from one status to another.

reasonstring(Optional)

The reason for the condition’s last transition.

messagestring(Optional)

A human readable message indicating details about the transition.


MachineSetConditionType (string alias)

(Appears on: MachineSetCondition)

MachineSetConditionType is the condition on machineset object


MachineSetSpec

(Appears on: MachineSet)

MachineSetSpec is the specification of a MachineSet.

FieldTypeDescription
replicasint32(Optional)
selectorKubernetes meta/v1.LabelSelector(Optional)
machineClassClassSpec(Optional)
templateMachineTemplateSpec(Optional)
minReadySecondsint32(Optional)

MachineSetStatus

(Appears on: MachineSet)

MachineSetStatus holds the most recently observed status of MachineSet.

FieldTypeDescription
replicasint32

Replicas is the number of actual replicas.

fullyLabeledReplicasint32(Optional)

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

readyReplicasint32(Optional)

The number of ready replicas for this replica set.

availableReplicasint32(Optional)

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

observedGenerationint64(Optional)

ObservedGeneration is the most recent generation observed by the controller.

machineSetCondition[]MachineSetCondition(Optional)

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

lastOperationLastOperation

LastOperation performed

failedMachines[]github.com/gardener/machine-controller-manager/pkg/apis/machine/v1alpha1.MachineSummary(Optional)

FailedMachines has summary of machines on which lastOperation Failed


MachineSpec

(Appears on: Machine, MachineTemplateSpec)

MachineSpec is the specification of a Machine.

FieldTypeDescription
classClassSpec(Optional)

Class contains the machineclass attributes of a machine

providerIDstring(Optional)

ProviderID represents the provider’s unique ID given to a machine

nodeTemplateNodeTemplateSpec(Optional)

NodeTemplateSpec describes the data a node should have when created from a template

MachineConfigurationMachineConfiguration

(Members of MachineConfiguration are embedded into this type.)

(Optional)

Configuration for the machine-controller.


MachineState (string alias)

(Appears on: LastOperation)

MachineState is a current state of the operation.


MachineStatus

(Appears on: Machine)

MachineStatus holds the most recently observed status of Machine.

FieldTypeDescription
conditions[]Kubernetes core/v1.NodeCondition

Conditions of this machine, same as node

lastOperationLastOperation

Last operation refers to the status of the last operation performed

currentStatusCurrentStatus

Current status of the machine object

lastKnownStatestring(Optional)

LastKnownState can store details of the last known state of the VM by the plugins. It can be used by future operation calls to determine current infrastucture state


MachineSummary

MachineSummary store the summary of machine.

FieldTypeDescription
namestring

Name of the machine object

providerIDstring

ProviderID represents the provider’s unique ID given to a machine

lastOperationLastOperation

Last operation refers to the status of the last operation performed

ownerRefstring

OwnerRef


MachineTemplateSpec

(Appears on: MachineDeploymentSpec, MachineSetSpec)

MachineTemplateSpec describes the data a machine should have when created from a template

FieldTypeDescription
metadataKubernetes meta/v1.ObjectMeta(Optional)

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

Refer to the Kubernetes API documentation for the fields of the metadata field.
specMachineSpec(Optional)

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



classClassSpec(Optional)

Class contains the machineclass attributes of a machine

providerIDstring(Optional)

ProviderID represents the provider’s unique ID given to a machine

nodeTemplateNodeTemplateSpec(Optional)

NodeTemplateSpec describes the data a node should have when created from a template

MachineConfigurationMachineConfiguration

(Members of MachineConfiguration are embedded into this type.)

(Optional)

Configuration for the machine-controller.


NodeTemplate

(Appears on: MachineClass)

NodeTemplate contains subfields to track all node resources and other node info required to scale nodegroup from zero

FieldTypeDescription
capacityKubernetes core/v1.ResourceList

Capacity contains subfields to track all node resources required to scale nodegroup from zero

instanceTypestring

Instance type of the node belonging to nodeGroup

regionstring

Region of the expected node belonging to nodeGroup

zonestring

Zone of the expected node belonging to nodeGroup

architecture*string(Optional)

CPU Architecture of the node belonging to nodeGroup


NodeTemplateSpec

(Appears on: MachineSpec)

NodeTemplateSpec describes the data a node should have when created from a template

FieldTypeDescription
metadataKubernetes meta/v1.ObjectMeta(Optional) Refer to the Kubernetes API documentation for the fields of the metadata field.
specKubernetes core/v1.NodeSpec(Optional)

NodeSpec describes the attributes that a node is created with.



podCIDRstring(Optional)

PodCIDR represents the pod IP range assigned to the node.

podCIDRs[]string(Optional)

podCIDRs represents the IP ranges assigned to the node for usage by Pods on that node. If this field is specified, the 0th entry must match the podCIDR field. It may contain at most 1 value for each of IPv4 and IPv6.

providerIDstring(Optional)

ID of the node assigned by the cloud provider in the format: ://

unschedulablebool(Optional)

Unschedulable controls node schedulability of new pods. By default, node is schedulable. More info: https://kubernetes.io/docs/concepts/nodes/node/#manual-node-administration

taints[]Kubernetes core/v1.Taint(Optional)

If specified, the node’s taints.

configSourceKubernetes core/v1.NodeConfigSource(Optional)

Deprecated: Previously used to specify the source of the node’s configuration for the DynamicKubeletConfig feature. This feature is removed.

externalIDstring(Optional)

Deprecated. Not all kubelets will set this field. Remove field after 1.13. see: https://issues.k8s.io/61966


RollbackConfig

(Appears on: MachineDeploymentSpec)

RollbackConfig is the config to rollback a MachineDeployment

FieldTypeDescription
revisionint64(Optional)

The revision to rollback to. If set to 0, rollback to the last revision.


RollingUpdateMachineDeployment

(Appears on: MachineDeploymentStrategy)

RollingUpdateMachineDeployment is the spec to control the desired behavior of rolling update.

FieldTypeDescription
maxUnavailablek8s.io/apimachinery/pkg/util/intstr.IntOrString(Optional)

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. By default, a fixed value of 1 is used. Example: when this is set to 30%, the old MC can be scaled down to 70% of desired machines immediately when the rolling update starts. Once new machines are ready, old MC can be scaled down further, followed by scaling up the new MC, ensuring that the total number of machines available at all times during the update is at least 70% of desired machines.

maxSurgek8s.io/apimachinery/pkg/util/intstr.IntOrString(Optional)

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. By default, a value of 1 is used. Example: when this is set to 30%, the new MC 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 MC can be scaled up further, ensuring that total number of machines running at any time during the update is atmost 130% of desired machines.


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