Chapter 2. Node [v1]

configSource

object

NodeConfigSource specifies a source of node configuration. Exactly one subfield (excluding metadata) must be non-nil. This API is deprecated since 1.22

externalID

string

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

podCIDR

string

PodCIDR represents the pod IP range assigned to the node.

podCIDRs

array (string)

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.

providerID

string

ID of the node assigned by the cloud provider in the format: <ProviderName>://<ProviderSpecificNodeID>

taints

array

If specified, the node’s taints.

taints[]

object

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

unschedulable

boolean

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

configMap

object

ConfigMapNodeConfigSource contains the information to reference a ConfigMap as a config source for the Node. This API is deprecated since 1.22: https://git.k8s.io/enhancements/keps/sig-node/281-dynamic-kubelet-configuration

kubeletConfigKey

string

KubeletConfigKey declares which key of the referenced ConfigMap corresponds to the KubeletConfiguration structure This field is required in all cases.

name

string

Name is the metadata.name of the referenced ConfigMap. This field is required in all cases.

namespace

string

Namespace is the metadata.namespace of the referenced ConfigMap. This field is required in all cases.

resourceVersion

string

ResourceVersion is the metadata.ResourceVersion of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

uid

string

UID is the metadata.UID of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

effect

string

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

Possible enum values: - "NoExecute" Evict any already-running pods that do not tolerate the taint. Currently enforced by NodeController. - "NoSchedule" Do not allow new pods to schedule onto the node unless they tolerate the taint, but allow all pods submitted to Kubelet without going through the scheduler to start, and allow all already-running pods to continue running. Enforced by the scheduler. - "PreferNoSchedule" Like TaintEffectNoSchedule, but the scheduler tries not to schedule new pods onto the node, rather than prohibiting new pods from scheduling onto the node entirely. Enforced by the scheduler.

key

string

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

timeAdded

Time

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.

addresses

array

List of addresses reachable to the node. Queried from cloud provider, if available. More info: https://kubernetes.io/docs/concepts/nodes/node/#addresses Note: This field is declared as mergeable, but the merge key is not sufficiently unique, which can cause data corruption when it is merged. Callers should instead use a full-replacement patch. See https://pr.k8s.io/79391 for an example. Consumers should assume that addresses can change during the lifetime of a Node. However, there are some exceptions where this may not be possible, such as Pods that inherit a Node’s address in its own status or consumers of the downward API (status.hostIP).

addresses[]

object

NodeAddress contains information for the node’s address.

allocatable

object (Quantity)

Allocatable represents the resources of a node that are available for scheduling. Defaults to Capacity.

capacity

object (Quantity)

Capacity represents the total resources of a node. More info: https://kubernetes.io/docs/concepts/storage/persistent-volumes#capacity

conditions

array

Conditions is an array of current observed node conditions. More info: https://kubernetes.io/docs/concepts/nodes/node/#condition

conditions[]

object

NodeCondition contains condition information for a node.

config

object

NodeConfigStatus describes the status of the config assigned by Node.Spec.ConfigSource.

daemonEndpoints

object

NodeDaemonEndpoints lists ports opened by daemons running on the Node.

images

array

List of container images on this node

images[]

object

Describe a container image

nodeInfo

object

NodeSystemInfo is a set of ids/uuids to uniquely identify the node.

phase

string

NodePhase is the recently observed lifecycle phase of the node. More info: https://kubernetes.io/docs/concepts/nodes/node/#phase The field is never populated, and now is deprecated.

Possible enum values: - "Pending" means the node has been created/added by the system, but not configured. - "Running" means the node has been configured and has Kubernetes components running. - "Terminated" means the node has been removed from the cluster.

runtimeHandlers

array

The available runtime handlers.

runtimeHandlers[]

object

NodeRuntimeHandler is a set of runtime handler information.

volumesAttached

array

List of volumes that are attached to the node.

volumesAttached[]

object

AttachedVolume describes a volume attached to a node

volumesInUse

array (string)

List of attachable volumes in use (mounted) by the node.

address

string

The node address.

type

string

Node address type, one of Hostname, ExternalIP or InternalIP.

lastHeartbeatTime

Time

Last time we got an update on a given condition.

lastTransitionTime

Time

Last time the condition transit from one status to another.

message

string

Human readable message indicating details about last transition.

reason

string

(brief) reason for the condition’s last transition.

status

string

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

type

string

Type of node condition.

active

object

NodeConfigSource specifies a source of node configuration. Exactly one subfield (excluding metadata) must be non-nil. This API is deprecated since 1.22

assigned

object

NodeConfigSource specifies a source of node configuration. Exactly one subfield (excluding metadata) must be non-nil. This API is deprecated since 1.22

error

string

Error describes any problems reconciling the Spec.ConfigSource to the Active config. Errors may occur, for example, attempting to checkpoint Spec.ConfigSource to the local Assigned record, attempting to checkpoint the payload associated with Spec.ConfigSource, attempting to load or validate the Assigned config, etc. Errors may occur at different points while syncing config. Earlier errors (e.g. download or checkpointing errors) will not result in a rollback to LastKnownGood, and may resolve across Kubelet retries. Later errors (e.g. loading or validating a checkpointed config) will result in a rollback to LastKnownGood. In the latter case, it is usually possible to resolve the error by fixing the config assigned in Spec.ConfigSource. You can find additional information for debugging by searching the error message in the Kubelet log. Error is a human-readable description of the error state; machines can check whether or not Error is empty, but should not rely on the stability of the Error text across Kubelet versions.

lastKnownGood

object

NodeConfigSource specifies a source of node configuration. Exactly one subfield (excluding metadata) must be non-nil. This API is deprecated since 1.22

configMap

object

ConfigMapNodeConfigSource contains the information to reference a ConfigMap as a config source for the Node. This API is deprecated since 1.22: https://git.k8s.io/enhancements/keps/sig-node/281-dynamic-kubelet-configuration

kubeletConfigKey

string

KubeletConfigKey declares which key of the referenced ConfigMap corresponds to the KubeletConfiguration structure This field is required in all cases.

name

string

Name is the metadata.name of the referenced ConfigMap. This field is required in all cases.

namespace

string

Namespace is the metadata.namespace of the referenced ConfigMap. This field is required in all cases.

resourceVersion

string

ResourceVersion is the metadata.ResourceVersion of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

uid

string

UID is the metadata.UID of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

configMap

object

ConfigMapNodeConfigSource contains the information to reference a ConfigMap as a config source for the Node. This API is deprecated since 1.22: https://git.k8s.io/enhancements/keps/sig-node/281-dynamic-kubelet-configuration

kubeletConfigKey

string

KubeletConfigKey declares which key of the referenced ConfigMap corresponds to the KubeletConfiguration structure This field is required in all cases.

name

string

Name is the metadata.name of the referenced ConfigMap. This field is required in all cases.

namespace

string

Namespace is the metadata.namespace of the referenced ConfigMap. This field is required in all cases.

resourceVersion

string

ResourceVersion is the metadata.ResourceVersion of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

uid

string

UID is the metadata.UID of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

configMap

object

ConfigMapNodeConfigSource contains the information to reference a ConfigMap as a config source for the Node. This API is deprecated since 1.22: https://git.k8s.io/enhancements/keps/sig-node/281-dynamic-kubelet-configuration

kubeletConfigKey

string

KubeletConfigKey declares which key of the referenced ConfigMap corresponds to the KubeletConfiguration structure This field is required in all cases.

name

string

Name is the metadata.name of the referenced ConfigMap. This field is required in all cases.

namespace

string

Namespace is the metadata.namespace of the referenced ConfigMap. This field is required in all cases.

resourceVersion

string

ResourceVersion is the metadata.ResourceVersion of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

uid

string

UID is the metadata.UID of the referenced ConfigMap. This field is forbidden in Node.Spec, and required in Node.Status.

kubeletEndpoint

object

DaemonEndpoint contains information about a single Daemon endpoint.

Port

integer

Port number of the given endpoint.

names

array (string)

Names by which this image is known. e.g. ["kubernetes.example/hyperkube:v1.0.7", "cloud-vendor.registry.example/cloud-vendor/hyperkube:v1.0.7"]

sizeBytes

integer

The size of the image in bytes.

architecture

string

The Architecture reported by the node

bootID

string

Boot ID reported by the node.

containerRuntimeVersion

string

ContainerRuntime Version reported by the node through runtime remote API (e.g. containerd://1.4.2).

kernelVersion

string

Kernel Version reported by the node from 'uname -r' (e.g. 3.16.0-0.bpo.4-amd64).

kubeProxyVersion

string

KubeProxy Version reported by the node.

kubeletVersion

string

Kubelet Version reported by the node.

machineID

string

MachineID reported by the node. For unique machine identification in the cluster this field is preferred. Learn more from man(5) machine-id: http://man7.org/linux/man-pages/man5/machine-id.5.html

operatingSystem

string

The Operating System reported by the node

osImage

string

OS Image reported by the node from /etc/os-release (e.g. Debian GNU/Linux 7 (wheezy)).

systemUUID

string

SystemUUID reported by the node. For unique machine identification MachineID is preferred. This field is specific to Red Hat hosts https://access.redhat.com/documentation/en-us/red_hat_subscription_management/1/html/rhsm/uuid

features

object

NodeRuntimeHandlerFeatures is a set of runtime features.

name

string

Runtime handler name. Empty for the default runtime handler.

recursiveReadOnlyMounts

boolean

RecursiveReadOnlyMounts is set to true if the runtime handler supports RecursiveReadOnlyMounts.

devicePath

string

DevicePath represents the device path where the volume should be available

name

string

Name of the attached volume

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

200 - OK

Status schema

401 - Unauthorized

Empty

200 - OK

NodeList schema

401 - Unauthorized

Empty

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.

body

Node schema

200 - OK

Node schema

201 - Created

Node schema

202 - Accepted

Node schema

401 - Unauthorized

Empty

200 - OK

WatchEvent schema

401 - Unauthorized

Empty

name

string

name of the Node

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

200 - OK

Status schema

202 - Accepted

Status schema

401 - Unauthorized

Empty

200 - OK

Node schema

401 - Unauthorized

Empty

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.

200 - OK

Node schema

201 - Created

Node schema

401 - Unauthorized

Empty

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.

body

Node schema

200 - OK

Node schema

201 - Created

Node schema

401 - Unauthorized

Empty

name

string

name of the Node

200 - OK

WatchEvent schema

401 - Unauthorized

Empty

name

string

name of the Node

200 - OK

Node schema

401 - Unauthorized

Empty

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.

200 - OK

Node schema

201 - Created

Node schema

401 - Unauthorized

Empty

dryRun

string

When present, indicates that modifications should not be persisted. An invalid or unrecognized dryRun directive will result in an error response and no further processing of the request. Valid values are: - All: all dry run stages will be processed

fieldValidation

string

fieldValidation instructs the server on how to handle objects in the request (POST/PUT/PATCH) containing unknown or duplicate fields. Valid values are: - Ignore: This will ignore any unknown fields that are silently dropped from the object, and will ignore all but the last duplicate field that the decoder encounters. This is the default behavior prior to v1.23. - Warn: This will send a warning via the standard warning response header for each unknown field that is dropped from the object, and for each duplicate field that is encountered. The request will still succeed if there are no other errors, and will only persist the last of any duplicate fields. This is the default in v1.23+ - Strict: This will fail the request with a BadRequest error if any unknown fields would be dropped from the object, or if any duplicate fields are present. The error returned from the server will contain all unknown and duplicate fields encountered.

body

Node schema

200 - OK

Node schema

201 - Created

Node schema

401 - Unauthorized

Empty